Release 0.6.0

Dependency updates. Enable new translations. Minor fixes
Fix gradle build warnings. Remove unused strings
2025-06-26 19:17:51 +02:00 · 2017-07-08 18:07:43 +02:00 · 2017-07-08 16:44:01 +02:00 · 2017-07-05 17:21:27 +02:00 · 2017-07-05 17:09:27 +02:00 · 2017-07-05 14:19:58 +02:00
347 changed files with 14299 additions and 9927 deletions
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@ -31,5 +31,4 @@ DON'T: https://github.com/inorichi/tachiyomi/issues/75

 # Translations

-File `app/src/main/res/values/strings.xml` should be copied over to appropriate directories and then translated.
-Consult [Android.com](http://developer.android.com/training/basics/supporting-devices/languages.html#CreateDirs)
+[Wiki](https://github.com/inorichi/tachiyomi/wiki/Translation)
--- a/app/build.gradle
+++ b/app/build.gradle
@ -38,8 +38,8 @@ android {
        minSdkVersion 16
        targetSdkVersion 25
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        versionCode 21
-        versionName "0.5.1"
+        versionCode 23
+        versionName "0.6.0"

        buildConfigField "String", "COMMIT_COUNT", "\"${getCommitCount()}\""
        buildConfigField "String", "COMMIT_SHA", "\"${getGitSha()}\""
@ -92,10 +92,6 @@ android {
        checkReleaseBuilds false
    }

-    sourceSets {
-        main.java.srcDirs += 'src/main/kotlin'
-    }
-
 }

 dependencies {
@ -105,7 +101,7 @@ dependencies {
    compile 'com.github.inorichi:junrar-android:634c1f5'

    // Android support library
-    final support_library_version = '25.2.0'
+    final support_library_version = '25.4.0'
    compile "com.android.support:support-v4:$support_library_version"
    compile "com.android.support:appcompat-v7:$support_library_version"
    compile "com.android.support:cardview-v7:$support_library_version"
@ -120,23 +116,23 @@ dependencies {

    // ReactiveX
    compile 'io.reactivex:rxandroid:1.2.1'
-    compile 'io.reactivex:rxjava:1.2.7'
+    compile 'io.reactivex:rxjava:1.3.0'
    compile 'com.jakewharton.rxrelay:rxrelay:1.2.0'
    compile 'com.f2prateek.rx.preferences:rx-preferences:1.0.2'
    compile 'com.github.pwittchen:reactivenetwork:0.7.0'

    // Network client
-    compile "com.squareup.okhttp3:okhttp:3.6.0"
-    compile 'com.squareup.okio:okio:1.11.0'
+    compile "com.squareup.okhttp3:okhttp:3.8.1"
+    compile 'com.squareup.okio:okio:1.13.0'

    // REST
-    final retrofit_version = '2.2.0'
+    final retrofit_version = '2.3.0'
    compile "com.squareup.retrofit2:retrofit:$retrofit_version"
    compile "com.squareup.retrofit2:converter-gson:$retrofit_version"
    compile "com.squareup.retrofit2:adapter-rxjava:$retrofit_version"

    // JSON
-    compile 'com.google.code.gson:gson:2.8.0'
+    compile 'com.google.code.gson:gson:2.8.1'
    compile 'com.github.salomonbrys.kotson:kotson:2.5.0'

    // YAML
@ -150,32 +146,31 @@ dependencies {
    compile 'com.github.seven332:unifile:1.0.0'

    // HTML parser
-    compile 'org.jsoup:jsoup:1.10.2'
+    compile 'org.jsoup:jsoup:1.10.3'

    // Job scheduling
-    compile 'com.evernote:android-job:1.1.7'
-    compile 'com.google.android.gms:play-services-gcm:10.2.0'
+    compile 'com.evernote:android-job:1.1.11'
+    compile 'com.google.android.gms:play-services-gcm:11.0.1'

    // Changelog
    compile 'com.github.gabrielemariotti.changeloglib:changelog:2.1.0'

    // Database
-    compile "com.pushtorefresh.storio:sqlite:1.12.3"
+    compile "com.pushtorefresh.storio:sqlite:1.13.0"

    // Model View Presenter
    final nucleus_version = '3.0.0'
    compile "info.android15.nucleus:nucleus:$nucleus_version"
-    compile "info.android15.nucleus:nucleus-support-v4:$nucleus_version"
    compile "info.android15.nucleus:nucleus-support-v7:$nucleus_version"

    // Dependency injection
    compile "uy.kohesive.injekt:injekt-core:1.16.1"

    // Image library
-    compile 'com.github.bumptech.glide:glide:3.7.0'
-    compile 'com.github.bumptech.glide:okhttp3-integration:1.4.0@aar'
+    compile 'com.github.bumptech.glide:glide:3.8.0'
+    compile 'com.github.bumptech.glide:okhttp3-integration:1.5.0@aar'
    // Transformations
-    compile 'jp.wasabeef:glide-transformations:2.0.1'
+    compile 'jp.wasabeef:glide-transformations:2.0.2'

    // Logging
    compile 'com.jakewharton.timber:timber:4.5.1'
@ -190,13 +185,23 @@ dependencies {
    compile 'com.dmitrymalkovich.android:material-design-dimens:1.4'
    compile 'com.github.dmytrodanylyk.android-process-button:library:1.0.4'
    compile 'eu.davidea:flexible-adapter:5.0.0-rc1'
-    compile 'com.github.inorichi:FlexibleAdapter:93985fe' // v4.2.0 to be removed
    compile 'com.nononsenseapps:filepicker:2.5.2'
    compile 'com.github.amulyakhare:TextDrawable:558677e'
-    compile 'com.afollestad.material-dialogs:core:0.9.4.1'
-    compile 'net.xpece.android:support-preference:1.2.5'
+    compile 'com.afollestad.material-dialogs:core:0.9.4.5'
    compile 'me.zhanghai.android.systemuihelper:library:1.0.0'
    compile 'de.hdodenhof:circleimageview:2.1.0'
+    compile 'com.nightlynexus.viewstatepageradapter:viewstatepageradapter:1.0.4'
+
+    // Conductor
+    compile "com.bluelinelabs:conductor:2.1.4"
+    compile 'com.github.inorichi:conductor-support-preference:9e36460'
+
+    // RxBindings
+    final rxbindings_version = '1.0.1'
+    compile "com.jakewharton.rxbinding:rxbinding-kotlin:$rxbindings_version"
+    compile "com.jakewharton.rxbinding:rxbinding-appcompat-v7-kotlin:$rxbindings_version"
+    compile "com.jakewharton.rxbinding:rxbinding-support-v4-kotlin:$rxbindings_version"
+    compile "com.jakewharton.rxbinding:rxbinding-recyclerview-v7-kotlin:$rxbindings_version"

    // Tests
    testCompile 'junit:junit:4.12'
@ -212,7 +217,7 @@ dependencies {
 }

 buildscript {
-    ext.kotlin_version = '1.1.1'
+    ext.kotlin_version = '1.1.3'
    repositories {
        mavenCentral()
    }
@ -224,3 +229,50 @@ buildscript {
 repositories {
    mavenCentral()
 }
+
+// Workaround to force a support lib version
+configurations.all {
+    resolutionStrategy.eachDependency { details ->
+        def requested = details.requested
+        if (requested.group == 'com.android.support') {
+            if (!requested.name.startsWith("multidex")) {
+                details.useVersion '25.4.0'
+            }
+        }
+    }
+}
+
+// add support for placeholders in resource files
+//https://code.google.com/p/android/issues/detail?id=69224
+def replacePlaceholdersInFile(basePath, fileName, placeholders) {
+    def file = new File(basePath, fileName);
+
+    if (!file.exists()) {
+        logger.quiet("Unable to replace placeholders in " + file.toString() + ". File cannot be found.")
+        return;
+    }
+
+    logger.debug("Replacing placeholders in " + file.toString())
+    logger.debug("Placeholders: " + placeholders.toString())
+
+    def content = file.getText('UTF-8')
+
+    placeholders.each { entry ->
+        content = content.replaceAll("\\\$\\{${entry.key}\\}", entry.value)
+    }
+
+    file.write(content, 'UTF-8')
+}
+
+afterEvaluate {
+    android.applicationVariants.all { variant ->
+        variant.outputs.each { output ->
+            output.processResources.doFirst {
+                // prepare placeholder map from manifestPlaceholders including applicationId placeholder
+                def placeholders = variant.mergedFlavor.manifestPlaceholders + [applicationId: variant.applicationId]
+
+                replacePlaceholdersInFile(resDir, 'xml-v25/shortcuts.xml', placeholders)
+            }
+        }
+    }
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@ -1,23 +1,17 @@
 -dontobfuscate

+-dontwarn eu.kanade.tachiyomi.**
 -keep class eu.kanade.tachiyomi.**
+-keep class eu.kanade.tachiyomi.source.model.** { *; }

 -keep class com.hippo.image.** { *; }
 -keep interface com.hippo.image.** { *; }

 # OkHttp
-keepattributes Signature
-keepattributes *Annotation*
-keep class okhttp3.** { *; }
-keep interface okhttp3.** { *; }
 -dontwarn okhttp3.**
 -dontwarn okio.**
-
-# Okio
-keep class sun.misc.Unsafe { *; }
-dontwarn java.nio.file.*
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
-dontwarn okio.**
+-dontwarn javax.annotation.**
+-dontwarn retrofit2.Platform$Java8

 # Glide specific rules #
 # https://github.com/bumptech/glide
@ -43,27 +37,26 @@
    rx.internal.util.atomic.LinkedQueueNode consumerNode;
 }

-# Retrofit 2.X
-## https://square.github.io/retrofit/ ##
+### Support v7, Design
+# http://stackoverflow.com/questions/29679177/cardview-shadow-not-appearing-in-lollipop-after-obfuscate-with-proguard/29698051
+-keep class android.support.v7.widget.RoundRectDrawable { *; }

-dontwarn retrofit2.**
-keep class retrofit2.** { *; }
-keepattributes Signature
-keepattributes Exceptions
-
-keepclasseswithmembers class * {
-    @retrofit2.http.* <methods>;
-}
-
-# AppCombat
 -keep public class android.support.v7.widget.** { *; }
 -keep public class android.support.v7.internal.widget.** { *; }
 -keep public class android.support.v7.internal.view.menu.** { *; }
+-keep public class android.support.v7.graphics.drawable.** { *; }

 -keep public class * extends android.support.v4.view.ActionProvider {
    public <init>(android.content.Context);
 }

+-dontwarn android.support.**
+-dontwarn android.support.design.**
+-keep class android.support.design.** { *; }
+-keep interface android.support.design.** { *; }
+-keep public class android.support.design.R$* { *; }
+
+
 # ReactiveNetwork
 -dontwarn com.github.pwittchen.reactivenetwork.**

@ -73,15 +66,8 @@
 # removes such information by default, so configure it to keep all of it.
 -keepattributes Signature

-# For using GSON @Expose annotation
-keepattributes *Annotation*
-
 # Gson specific classes
 -keep class sun.misc.Unsafe { *; }
-#-keep class com.google.gson.stream.** { *; }
-
-# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { *; }

 # Prevent proguard from stripping interface information from TypeAdapterFactory,
 # JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
@ -91,7 +77,6 @@

 # SnakeYaml
 -keep class org.yaml.snakeyaml.** { public protected private *; }
-keep class org.yaml.snakeyaml.** { public protected private *; }
 -dontwarn org.yaml.snakeyaml.**

 # Duktape
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
    package="eu.kanade.tachiyomi">

    <uses-permission android:name="android.permission.INTERNET" />
@ -9,9 +8,6 @@
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
-    <uses-permission
-        android:name="android.permission.READ_PHONE_STATE"
-        tools:node="remove" />
    <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />

    <application
@ -19,33 +15,26 @@
        android:allowBackup="true"
        android:hardwareAccelerated="true"
        android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
        android:label="@string/app_name"
        android:largeHeap="true"
        android:theme="@style/Theme.Tachiyomi">
-        <activity android:name=".ui.main.MainActivity">
+        <activity
+            android:name=".ui.main.MainActivity"
+            android:launchMode="singleTask">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
+            <meta-data android:name="android.app.shortcuts"
+                android:resource="@xml/shortcuts"/>
        </activity>
-        <activity
-            android:name=".ui.manga.MangaActivity"
-            android:exported="true"
-            android:parentActivityName=".ui.main.MainActivity" />
        <activity
            android:name=".ui.reader.ReaderActivity"
            android:theme="@style/Theme.Reader" />
        <activity
-            android:name=".ui.setting.SettingsActivity"
-            android:label="@string/label_settings"
-            android:parentActivityName=".ui.main.MainActivity" />
-        <activity
-            android:name=".ui.category.CategoryActivity"
-            android:label="@string/label_categories"
-            android:parentActivityName=".ui.main.MainActivity" />
-        <activity
-            android:name=".ui.setting.SettingsDownloadsFragment$CustomLayoutPickerActivity"
+            android:name=".widget.CustomLayoutPickerActivity"
            android:label="@string/app_name"
            android:theme="@style/FilePickerTheme" />
        <activity
@ -62,9 +51,6 @@
                    android:scheme="tachiyomi" />
            </intent-filter>
        </activity>
-        <activity
-            android:name=".ui.download.DownloadActivity"
-            android:launchMode="singleTop" />

        <provider
            android:name="android.support.v4.content.FileProvider"
@ -102,6 +88,14 @@
            android:name=".data.updater.UpdateDownloaderService"
            android:exported="false" />

+        <service
+            android:name=".data.backup.BackupCreateService"
+            android:exported="false"/>
+
+        <service
+            android:name=".data.backup.BackupRestoreService"
+            android:exported="false"/>
+
        <meta-data
            android:name="eu.kanade.tachiyomi.data.glide.AppGlideModule"
            android:value="GlideModule" />
--- a/app/src/main/ic_launcher-web.png
+++ b/app/src/main/ic_launcher-web.png
--- a/app/src/main/java/eu/kanade/tachiyomi/App.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/App.kt
@ -5,6 +5,7 @@ import android.content.Context
 import android.content.res.Configuration
 import android.support.multidex.MultiDex
 import com.evernote.android.job.JobManager
+import eu.kanade.tachiyomi.data.backup.BackupCreatorJob
 import eu.kanade.tachiyomi.data.library.LibraryUpdateJob
 import eu.kanade.tachiyomi.data.updater.UpdateCheckerJob
 import eu.kanade.tachiyomi.util.LocaleHelper
@ -58,6 +59,7 @@ open class App : Application() {
            when (tag) {
                LibraryUpdateJob.TAG -> LibraryUpdateJob()
                UpdateCheckerJob.TAG -> UpdateCheckerJob()
+                BackupCreatorJob.TAG -> BackupCreatorJob()
                else -> null
            }
        }
--- a/app/src/main/java/eu/kanade/tachiyomi/Constants.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/Constants.kt
@ -1,10 +1,10 @@
 package eu.kanade.tachiyomi

 object Constants {
-    const val NOTIFICATION_LIBRARY_ID = 1
-    const val NOTIFICATION_UPDATER_ID = 2
-    const val NOTIFICATION_DOWNLOAD_CHAPTER_ID = 3
-    const val NOTIFICATION_DOWNLOAD_CHAPTER_ERROR_ID = 4
-    const val NOTIFICATION_DOWNLOAD_IMAGE_ID = 5
-
+    const val NOTIFICATION_LIBRARY_PROGRESS_ID = 1
+    const val NOTIFICATION_LIBRARY_RESULT_ID = 2
+    const val NOTIFICATION_UPDATER_ID = 3
+    const val NOTIFICATION_DOWNLOAD_CHAPTER_ID = 4
+    const val NOTIFICATION_DOWNLOAD_CHAPTER_ERROR_ID = 5
+    const val NOTIFICATION_DOWNLOAD_IMAGE_ID = 6
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/Migrations.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/Migrations.kt
@ -0,0 +1,53 @@
+package eu.kanade.tachiyomi
+
+import eu.kanade.tachiyomi.data.library.LibraryUpdateJob
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.data.preference.getOrDefault
+import eu.kanade.tachiyomi.data.updater.UpdateCheckerJob
+import java.io.File
+
+object Migrations {
+
+    /**
+     * Performs a migration when the application is updated.
+     *
+     * @param preferences Preferences of the application.
+     * @return true if a migration is performed, false otherwise.
+     */
+    fun upgrade(preferences: PreferencesHelper): Boolean {
+        val context = preferences.context
+        val oldVersion = preferences.lastVersionCode().getOrDefault()
+        if (oldVersion < BuildConfig.VERSION_CODE) {
+            preferences.lastVersionCode().set(BuildConfig.VERSION_CODE)
+
+            if (oldVersion == 0) return false
+
+            if (oldVersion < 14) {
+                // Restore jobs after upgrading to evernote's job scheduler.
+                if (BuildConfig.INCLUDE_UPDATER && preferences.automaticUpdates()) {
+                    UpdateCheckerJob.setupTask()
+                }
+                LibraryUpdateJob.setupTask()
+            }
+            if (oldVersion < 15) {
+                // Delete internal chapter cache dir.
+                File(context.cacheDir, "chapter_disk_cache").deleteRecursively()
+            }
+            if (oldVersion < 19) {
+                // Move covers to external files dir.
+                val oldDir = File(context.externalCacheDir, "cover_disk_cache")
+                if (oldDir.exists()) {
+                    val destDir = context.getExternalFilesDir("covers")
+                    if (destDir != null) {
+                        oldDir.listFiles().forEach {
+                            it.renameTo(File(destDir, it.name))
+                        }
+                    }
+                }
+            }
+            return true
+        }
+        return false
+    }
+
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupConst.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupConst.kt
@ -0,0 +1,23 @@
+package eu.kanade.tachiyomi.data.backup
+import eu.kanade.tachiyomi.BuildConfig.APPLICATION_ID as ID
+
+
+object BackupConst {
+
+    const val INTENT_FILTER = "SettingsBackupFragment"
+    const val ACTION_BACKUP_COMPLETED_DIALOG = "$ID.$INTENT_FILTER.ACTION_BACKUP_COMPLETED_DIALOG"
+    const val ACTION_SET_PROGRESS_DIALOG = "$ID.$INTENT_FILTER.ACTION_SET_PROGRESS_DIALOG"
+    const val ACTION_ERROR_BACKUP_DIALOG = "$ID.$INTENT_FILTER.ACTION_ERROR_BACKUP_DIALOG"
+    const val ACTION_ERROR_RESTORE_DIALOG = "$ID.$INTENT_FILTER.ACTION_ERROR_RESTORE_DIALOG"
+    const val ACTION_RESTORE_COMPLETED_DIALOG = "$ID.$INTENT_FILTER.ACTION_RESTORE_COMPLETED_DIALOG"
+    const val ACTION = "$ID.$INTENT_FILTER.ACTION"
+    const val EXTRA_PROGRESS = "$ID.$INTENT_FILTER.EXTRA_PROGRESS"
+    const val EXTRA_AMOUNT = "$ID.$INTENT_FILTER.EXTRA_AMOUNT"
+    const val EXTRA_ERRORS = "$ID.$INTENT_FILTER.EXTRA_ERRORS"
+    const val EXTRA_CONTENT = "$ID.$INTENT_FILTER.EXTRA_CONTENT"
+    const val EXTRA_ERROR_MESSAGE = "$ID.$INTENT_FILTER.EXTRA_ERROR_MESSAGE"
+    const val EXTRA_URI = "$ID.$INTENT_FILTER.EXTRA_URI"
+    const val EXTRA_TIME = "$ID.$INTENT_FILTER.EXTRA_TIME"
+    const val EXTRA_ERROR_FILE_PATH = "$ID.$INTENT_FILTER.EXTRA_ERROR_FILE_PATH"
+    const val EXTRA_ERROR_FILE = "$ID.$INTENT_FILTER.EXTRA_ERROR_FILE"
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
@ -0,0 +1,164 @@
+package eu.kanade.tachiyomi.data.backup
+
+import android.app.IntentService
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import com.github.salomonbrys.kotson.set
+import com.google.gson.JsonArray
+import com.google.gson.JsonObject
+import com.hippo.unifile.UniFile
+import eu.kanade.tachiyomi.data.backup.models.Backup
+import eu.kanade.tachiyomi.data.backup.models.Backup.CATEGORIES
+import eu.kanade.tachiyomi.data.backup.models.Backup.MANGAS
+import eu.kanade.tachiyomi.data.backup.models.Backup.VERSION
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.util.sendLocalBroadcast
+import timber.log.Timber
+import eu.kanade.tachiyomi.BuildConfig.APPLICATION_ID as ID
+
+/**
+ * [IntentService] used to backup [Manga] information to [JsonArray]
+ */
+class BackupCreateService : IntentService(NAME) {
+
+    companion object {
+        // Name of class
+        private const val NAME = "BackupCreateService"
+
+        // Backup called from job
+        private const val EXTRA_IS_JOB = "$ID.$NAME.EXTRA_IS_JOB"
+        // Options for backup
+        private const val EXTRA_FLAGS = "$ID.$NAME.EXTRA_FLAGS"
+
+        // Filter options
+        internal const val BACKUP_CATEGORY = 0x1
+        internal const val BACKUP_CATEGORY_MASK = 0x1
+        internal const val BACKUP_CHAPTER = 0x2
+        internal const val BACKUP_CHAPTER_MASK = 0x2
+        internal const val BACKUP_HISTORY = 0x4
+        internal const val BACKUP_HISTORY_MASK = 0x4
+        internal const val BACKUP_TRACK = 0x8
+        internal const val BACKUP_TRACK_MASK = 0x8
+        internal const val BACKUP_ALL = 0xF
+
+        /**
+         * Make a backup from library
+         *
+         * @param context context of application
+         * @param path path of Uri
+         * @param flags determines what to backup
+         * @param isJob backup called from job
+         */
+        fun makeBackup(context: Context, uri: Uri, flags: Int, isJob: Boolean = false) {
+            val intent = Intent(context, BackupCreateService::class.java).apply {
+                putExtra(BackupConst.EXTRA_URI, uri)
+                putExtra(EXTRA_IS_JOB, isJob)
+                putExtra(EXTRA_FLAGS, flags)
+            }
+            context.startService(intent)
+        }
+
+    }
+
+    private val backupManager by lazy { BackupManager(this) }
+
+    override fun onHandleIntent(intent: Intent?) {
+        if (intent == null) return
+
+        // Get values
+        val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)
+        val isJob = intent.getBooleanExtra(EXTRA_IS_JOB, false)
+        val flags = intent.getIntExtra(EXTRA_FLAGS, 0)
+        // Create backup
+        createBackupFromApp(uri, flags, isJob)
+    }
+
+    /**
+     * Create backup Json file from database
+     *
+     * @param uri path of Uri
+     * @param isJob backup called from job
+     */
+    fun createBackupFromApp(uri: Uri, flags: Int, isJob: Boolean) {
+        // Create root object
+        val root = JsonObject()
+
+        // Create information object
+        val information = JsonObject()
+
+        // Create manga array
+        val mangaEntries = JsonArray()
+
+        // Create category array
+        val categoryEntries = JsonArray()
+
+        // Add value's to root
+        root[VERSION] = Backup.CURRENT_VERSION
+        root[MANGAS] = mangaEntries
+        root[CATEGORIES] = categoryEntries
+
+        backupManager.databaseHelper.inTransaction {
+            // Get manga from database
+            val mangas = backupManager.getFavoriteManga()
+
+            // Backup library manga and its dependencies
+            mangas.forEach { manga ->
+                mangaEntries.add(backupManager.backupMangaObject(manga, flags))
+            }
+
+            // Backup categories
+            if ((flags and BACKUP_CATEGORY_MASK) == BACKUP_CATEGORY) {
+                backupManager.backupCategories(categoryEntries)
+            }
+        }
+
+        try {
+            // When BackupCreatorJob
+            if (isJob) {
+                // Get dir of file
+                val dir = UniFile.fromUri(this, uri)
+
+                // Delete older backups
+                val numberOfBackups = backupManager.numberOfBackups()
+                val backupRegex = Regex("""tachiyomi_\d+-\d+-\d+_\d+-\d+.json""")
+                dir.listFiles { _, filename -> backupRegex.matches(filename) }
+                        .orEmpty()
+                        .sortedByDescending { it.name }
+                        .drop(numberOfBackups - 1)
+                        .forEach { it.delete() }
+
+                // Create new file to place backup
+                val newFile = dir.createFile(Backup.getDefaultFilename())
+                        ?: throw Exception("Couldn't create backup file")
+
+                newFile.openOutputStream().bufferedWriter().use {
+                    backupManager.parser.toJson(root, it)
+                }
+            } else {
+                val file = UniFile.fromUri(this, uri)
+                        ?: throw Exception("Couldn't create backup file")
+                file.openOutputStream().bufferedWriter().use {
+                    backupManager.parser.toJson(root, it)
+                }
+
+                // Show completed dialog
+                val intent = Intent(BackupConst.INTENT_FILTER).apply {
+                    putExtra(BackupConst.ACTION, BackupConst.ACTION_BACKUP_COMPLETED_DIALOG)
+                    putExtra(BackupConst.EXTRA_URI, file.uri.toString())
+                }
+                sendLocalBroadcast(intent)
+            }
+        } catch (e: Exception) {
+            Timber.e(e)
+            if (!isJob) {
+                // Show error dialog
+                val intent = Intent(BackupConst.INTENT_FILTER).apply {
+                    putExtra(BackupConst.ACTION, BackupConst.ACTION_ERROR_BACKUP_DIALOG)
+                    putExtra(BackupConst.EXTRA_ERROR_MESSAGE, e.message)
+                }
+                sendLocalBroadcast(intent)
+            }
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreatorJob.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreatorJob.kt
@ -0,0 +1,43 @@
+package eu.kanade.tachiyomi.data.backup
+
+import android.net.Uri
+import com.evernote.android.job.Job
+import com.evernote.android.job.JobManager
+import com.evernote.android.job.JobRequest
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.data.preference.getOrDefault
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
+import java.io.File
+
+class BackupCreatorJob : Job() {
+
+    override fun onRunJob(params: Params): Result {
+        val preferences = Injekt.get<PreferencesHelper>()
+        val uri = Uri.fromFile(File(preferences.backupsDirectory().getOrDefault()))
+        val flags = BackupCreateService.BACKUP_ALL
+        BackupCreateService.makeBackup(context, uri, flags, true)
+        return Result.SUCCESS
+    }
+
+    companion object {
+        const val TAG = "BackupCreator"
+
+        fun setupTask(prefInterval: Int? = null) {
+            val preferences = Injekt.get<PreferencesHelper>()
+            val interval = prefInterval ?: preferences.backupInterval().getOrDefault()
+            if (interval > 0) {
+                JobRequest.Builder(TAG)
+                        .setPeriodic(interval * 60 * 60 * 1000L, 10 * 60 * 1000)
+                        .setPersisted(true)
+                        .setUpdateCurrent(true)
+                        .build()
+                        .schedule()
+            }
+        }
+
+        fun cancelTask() {
+            JobManager.instance().cancelAllForTag(TAG)
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupManager.kt
@ -1,203 +1,212 @@
 package eu.kanade.tachiyomi.data.backup

-import com.github.salomonbrys.kotson.fromJson
+import android.content.Context
+import com.github.salomonbrys.kotson.*
 import com.google.gson.*
-import com.google.gson.stream.JsonReader
-import eu.kanade.tachiyomi.data.backup.serializer.BooleanSerializer
-import eu.kanade.tachiyomi.data.backup.serializer.IdExclusion
-import eu.kanade.tachiyomi.data.backup.serializer.IntegerSerializer
-import eu.kanade.tachiyomi.data.backup.serializer.LongSerializer
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CATEGORY
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CATEGORY_MASK
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CHAPTER
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CHAPTER_MASK
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_HISTORY
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_HISTORY_MASK
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_TRACK
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_TRACK_MASK
+import eu.kanade.tachiyomi.data.backup.models.Backup.CATEGORIES
+import eu.kanade.tachiyomi.data.backup.models.Backup.CHAPTERS
+import eu.kanade.tachiyomi.data.backup.models.Backup.CURRENT_VERSION
+import eu.kanade.tachiyomi.data.backup.models.Backup.HISTORY
+import eu.kanade.tachiyomi.data.backup.models.Backup.MANGA
+import eu.kanade.tachiyomi.data.backup.models.Backup.TRACK
+import eu.kanade.tachiyomi.data.backup.models.DHistory
+import eu.kanade.tachiyomi.data.backup.serializer.*
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
 import eu.kanade.tachiyomi.data.database.models.*
-import java.io.*
-import java.util.*
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.data.preference.getOrDefault
+import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.source.SourceManager
+import eu.kanade.tachiyomi.util.syncChaptersWithSource
+import rx.Observable
+import uy.kohesive.injekt.injectLazy

-/**
- * This class provides the necessary methods to create and restore backups for the data of the
- * application. The backup follows a JSON structure, with the following scheme:
- *
- * {
- *     "mangas": [
- *         {
- *             "manga": {"id": 1, ...},
- *             "chapters": [{"id": 1, ...}, {...}],
- *             "sync": [{"id": 1, ...}, {...}],
- *             "categories": ["cat1", "cat2", ...]
- *         },
- *         { ... }
- *     ],
- *     "categories": [
- *         {"id": 1, ...},
- *         {"id": 2, ...}
- *     ]
- * }
- *
- * @param db the database helper.
- */
-class BackupManager(private val db: DatabaseHelper) {
-
-    private val MANGA = "manga"
-    private val MANGAS = "mangas"
-    private val CHAPTERS = "chapters"
-    private val TRACK = "sync"
-    private val CATEGORIES = "categories"
-
-    @Suppress("PLATFORM_CLASS_MAPPED_TO_KOTLIN")
-    private val gson = GsonBuilder()
-            .registerTypeAdapter(java.lang.Integer::class.java, IntegerSerializer())
-            .registerTypeAdapter(java.lang.Boolean::class.java, BooleanSerializer())
-            .registerTypeAdapter(java.lang.Long::class.java, LongSerializer())
-            .setExclusionStrategies(IdExclusion())
-            .create()
+class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {

    /**
-     * Backups the data of the application to a file.
-     *
-     * @param file the file where the backup will be saved.
-     * @throws IOException if there's any IO error.
+     * Database.
     */
-    @Throws(IOException::class)
-    fun backupToFile(file: File) {
-        val root = backupToJson()
+    internal val databaseHelper: DatabaseHelper by injectLazy()

-        FileWriter(file).use {
-            gson.toJson(root, it)
+    /**
+     * Source manager.
+     */
+    internal val sourceManager: SourceManager by injectLazy()
+
+    /**
+     * Version of parser
+     */
+    var version: Int = version
+        private set
+
+    /**
+     * Json Parser
+     */
+    var parser: Gson = initParser()
+
+    /**
+     * Preferences
+     */
+    private val preferences: PreferencesHelper by injectLazy()
+
+    /**
+     * Set version of parser
+     *
+     * @param version version of parser
+     */
+    internal fun setVersion(version: Int) {
+        this.version = version
+        parser = initParser()
+    }
+
+    private fun initParser(): Gson {
+        return when (version) {
+            1 -> GsonBuilder().create()
+            2 -> GsonBuilder()
+                    .registerTypeAdapter<MangaImpl>(MangaTypeAdapter.build())
+                    .registerTypeHierarchyAdapter<ChapterImpl>(ChapterTypeAdapter.build())
+                    .registerTypeAdapter<CategoryImpl>(CategoryTypeAdapter.build())
+                    .registerTypeAdapter<DHistory>(HistoryTypeAdapter.build())
+                    .registerTypeHierarchyAdapter<TrackImpl>(TrackTypeAdapter.build())
+                    .create()
+            else -> throw Exception("Json version unknown")
        }
    }

    /**
-     * Creates a JSON object containing the backup of the app's data.
+     * Backup the categories of library
     *
-     * @return the backup as a JSON object.
+     * @param root root of categories json
     */
-    fun backupToJson(): JsonObject {
-        val root = JsonObject()
-
-        // Backup library mangas and its dependencies
-        val mangaEntries = JsonArray()
-        root.add(MANGAS, mangaEntries)
-        for (manga in db.getFavoriteMangas().executeAsBlocking()) {
-            mangaEntries.add(backupManga(manga))
-        }
-
-        // Backup categories
-        val categoryEntries = JsonArray()
-        root.add(CATEGORIES, categoryEntries)
-        for (category in db.getCategories().executeAsBlocking()) {
-            categoryEntries.add(backupCategory(category))
-        }
-
-        return root
+    internal fun backupCategories(root: JsonArray) {
+        val categories = databaseHelper.getCategories().executeAsBlocking()
+        categories.forEach { root.add(parser.toJsonTree(it)) }
    }

    /**
-     * Backups a manga and its related data (chapters, categories this manga is in, sync...).
+     * Convert a manga to Json
     *
-     * @param manga the manga to backup.
-     * @return a JSON object containing all the data of the manga.
+     * @param manga manga that gets converted
+     * @return [JsonElement] containing manga information
     */
-    private fun backupManga(manga: Manga): JsonObject {
+    internal fun backupMangaObject(manga: Manga, options: Int): JsonElement {
        // Entry for this manga
        val entry = JsonObject()

        // Backup manga fields
-        entry.add(MANGA, gson.toJsonTree(manga))
+        entry[MANGA] = parser.toJsonTree(manga)

-        // Backup all the chapters
-        val chapters = db.getChapters(manga).executeAsBlocking()
-        if (!chapters.isEmpty()) {
-            entry.add(CHAPTERS, gson.toJsonTree(chapters))
-        }
-
-        // Backup tracks
-        val tracks = db.getTracks(manga).executeAsBlocking()
-        if (!tracks.isEmpty()) {
-            entry.add(TRACK, gson.toJsonTree(tracks))
-        }
-
-        // Backup categories for this manga
-        val categoriesForManga = db.getCategoriesForManga(manga).executeAsBlocking()
-        if (!categoriesForManga.isEmpty()) {
-            val categoriesNames = ArrayList<String>()
-            for (category in categoriesForManga) {
-                categoriesNames.add(category.name)
+        // Check if user wants chapter information in backup
+        if (options and BACKUP_CHAPTER_MASK == BACKUP_CHAPTER) {
+            // Backup all the chapters
+            val chapters = databaseHelper.getChapters(manga).executeAsBlocking()
+            if (!chapters.isEmpty()) {
+                val chaptersJson = parser.toJsonTree(chapters)
+                if (chaptersJson.asJsonArray.size() > 0) {
+                    entry[CHAPTERS] = chaptersJson
+                }
+            }
+        }
+
+        // Check if user wants category information in backup
+        if (options and BACKUP_CATEGORY_MASK == BACKUP_CATEGORY) {
+            // Backup categories for this manga
+            val categoriesForManga = databaseHelper.getCategoriesForManga(manga).executeAsBlocking()
+            if (!categoriesForManga.isEmpty()) {
+                val categoriesNames = categoriesForManga.map { it.name }
+                entry[CATEGORIES] = parser.toJsonTree(categoriesNames)
+            }
+        }
+
+        // Check if user wants track information in backup
+        if (options and BACKUP_TRACK_MASK == BACKUP_TRACK) {
+            val tracks = databaseHelper.getTracks(manga).executeAsBlocking()
+            if (!tracks.isEmpty()) {
+                entry[TRACK] = parser.toJsonTree(tracks)
+            }
+        }
+
+        // Check if user wants history information in backup
+        if (options and BACKUP_HISTORY_MASK == BACKUP_HISTORY) {
+            val historyForManga = databaseHelper.getHistoryByMangaId(manga.id!!).executeAsBlocking()
+            if (!historyForManga.isEmpty()) {
+                val historyData = historyForManga.mapNotNull { history ->
+                    val url = databaseHelper.getChapter(history.chapter_id).executeAsBlocking()?.url
+                    url?.let { DHistory(url, history.last_read) }
+                }
+                val historyJson = parser.toJsonTree(historyData)
+                if (historyJson.asJsonArray.size() > 0) {
+                    entry[HISTORY] = historyJson
+                }
            }
-            entry.add(CATEGORIES, gson.toJsonTree(categoriesNames))
        }

        return entry
    }

-    /**
-     * Backups a category.
-     *
-     * @param category the category to backup.
-     * @return a JSON object containing the data of the category.
-     */
-    private fun backupCategory(category: Category): JsonElement {
-        return gson.toJsonTree(category)
+    fun restoreMangaNoFetch(manga: Manga, dbManga: Manga) {
+        manga.id = dbManga.id
+        manga.copyFrom(dbManga)
+        manga.favorite = true
+        insertManga(manga)
    }

    /**
-     * Restores a backup from a file.
+     * [Observable] that fetches manga information
     *
-     * @param file the file containing the backup.
-     * @throws IOException if there's any IO error.
+     * @param source source of manga
+     * @param manga manga that needs updating
+     * @return [Observable] that contains manga
     */
-    @Throws(IOException::class)
-    fun restoreFromFile(file: File) {
-        JsonReader(FileReader(file)).use {
-            val root = JsonParser().parse(it).asJsonObject
-            restoreFromJson(root)
-        }
+    fun restoreMangaFetchObservable(source: Source, manga: Manga): Observable<Manga> {
+        return source.fetchMangaDetails(manga)
+                .map { networkManga ->
+                    manga.copyFrom(networkManga)
+                    manga.favorite = true
+                    manga.initialized = true
+                    manga.id = insertManga(manga)
+                    manga
+                }
    }

    /**
-     * Restores a backup from an input stream.
+     * [Observable] that fetches chapter information
     *
-     * @param stream the stream containing the backup.
-     * @throws IOException if there's any IO error.
+     * @param source source of manga
+     * @param manga manga that needs updating
+     * @return [Observable] that contains manga
     */
-    @Throws(IOException::class)
-    fun restoreFromStream(stream: InputStream) {
-        JsonReader(InputStreamReader(stream)).use {
-            val root = JsonParser().parse(it).asJsonObject
-            restoreFromJson(root)
-        }
+    fun restoreChapterFetchObservable(source: Source, manga: Manga, chapters: List<Chapter>): Observable<Pair<List<Chapter>, List<Chapter>>> {
+        return source.fetchChapterList(manga)
+                .map { syncChaptersWithSource(databaseHelper, it, manga, source) }
+                .doOnNext {
+                    if (it.first.isNotEmpty()) {
+                        chapters.forEach { it.manga_id = manga.id }
+                        insertChapters(chapters)
+                    }
+                }
    }

    /**
-     * Restores a backup from a JSON object. Everything executes in a single transaction so that
-     * nothing is modified if there's an error.
+     * Restore the categories from Json
     *
-     * @param root the root of the JSON.
+     * @param jsonCategories array containing categories
     */
-    fun restoreFromJson(root: JsonObject) {
-        db.inTransaction {
-            // Restore categories
-            root.get(CATEGORIES)?.let {
-                restoreCategories(it.asJsonArray)
-            }
-
-            // Restore mangas
-            root.get(MANGAS)?.let {
-                restoreMangas(it.asJsonArray)
-            }
-        }
-    }
-
-    /**
-     * Restores the categories.
-     *
-     * @param jsonCategories the categories of the json.
-     */
-    private fun restoreCategories(jsonCategories: JsonArray) {
+    internal fun restoreCategories(jsonCategories: JsonArray) {
        // Get categories from file and from db
-        val dbCategories = db.getCategories().executeAsBlocking()
-        val backupCategories = gson.fromJson<List<CategoryImpl>>(jsonCategories)
+        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
+        val backupCategories = parser.fromJson<List<CategoryImpl>>(jsonCategories)

        // Iterate over them
-        for (category in backupCategories) {
+        backupCategories.forEach { category ->
            // Used to know if the category is already in the db
            var found = false
            for (dbCategory in dbCategories) {
@ -214,102 +223,20 @@ class BackupManager(private val db: DatabaseHelper) {
            if (!found) {
                // Let the db assign the id
                category.id = null
-                val result = db.insertCategory(category).executeAsBlocking()
+                val result = databaseHelper.insertCategory(category).executeAsBlocking()
                category.id = result.insertedId()?.toInt()
            }
        }
    }

-    /**
-     * Restores all the mangas and its related data.
-     *
-     * @param jsonMangas the mangas and its related data (chapters, sync, categories) from the json.
-     */
-    private fun restoreMangas(jsonMangas: JsonArray) {
-        for (backupManga in jsonMangas) {
-            // Map every entry to objects
-            val element = backupManga.asJsonObject
-            val manga = gson.fromJson(element.get(MANGA), MangaImpl::class.java)
-            val chapters = gson.fromJson<List<ChapterImpl>>(element.get(CHAPTERS) ?: JsonArray())
-            val tracks = gson.fromJson<List<TrackImpl>>(element.get(TRACK) ?: JsonArray())
-            val categories = gson.fromJson<List<String>>(element.get(CATEGORIES) ?: JsonArray())
-
-            // Restore everything related to this manga
-            restoreManga(manga)
-            restoreChaptersForManga(manga, chapters)
-            restoreSyncForManga(manga, tracks)
-            restoreCategoriesForManga(manga, categories)
-        }
-    }
-
-    /**
-     * Restores a manga.
-     *
-     * @param manga the manga to restore.
-     */
-    private fun restoreManga(manga: Manga) {
-        // Try to find existing manga in db
-        val dbManga = db.getManga(manga.url, manga.source).executeAsBlocking()
-        if (dbManga == null) {
-            // Let the db assign the id
-            manga.id = null
-            val result = db.insertManga(manga).executeAsBlocking()
-            manga.id = result.insertedId()
-        } else {
-            // If it exists already, we copy only the values related to the source from the db
-            // (they can be up to date). Local values (flags) are kept from the backup.
-            manga.id = dbManga.id
-            manga.copyFrom(dbManga)
-            manga.favorite = true
-            db.insertManga(manga).executeAsBlocking()
-        }
-    }
-
-    /**
-     * Restores the chapters of a manga.
-     *
-     * @param manga the manga whose chapters have to be restored.
-     * @param chapters the chapters to restore.
-     */
-    private fun restoreChaptersForManga(manga: Manga, chapters: List<Chapter>) {
-        // Fix foreign keys with the current manga id
-        for (chapter in chapters) {
-            chapter.manga_id = manga.id
-        }
-
-        val dbChapters = db.getChapters(manga).executeAsBlocking()
-        val chaptersToUpdate = ArrayList<Chapter>()
-        for (backupChapter in chapters) {
-            // Try to find existing chapter in db
-            val pos = dbChapters.indexOf(backupChapter)
-            if (pos != -1) {
-                // The chapter is already in the db, only update its fields
-                val dbChapter = dbChapters[pos]
-                // If one of them was read, the chapter will be marked as read
-                dbChapter.read = backupChapter.read || dbChapter.read
-                dbChapter.last_page_read = Math.max(backupChapter.last_page_read, dbChapter.last_page_read)
-                chaptersToUpdate.add(dbChapter)
-            } else {
-                // Insert new chapter. Let the db assign the id
-                backupChapter.id = null
-                chaptersToUpdate.add(backupChapter)
-            }
-        }
-
-        // Update database
-        if (!chaptersToUpdate.isEmpty()) {
-            db.insertChapters(chaptersToUpdate).executeAsBlocking()
-        }
-    }
-
    /**
     * Restores the categories a manga is in.
     *
     * @param manga the manga whose categories have to be restored.
     * @param categories the categories to restore.
     */
-    private fun restoreCategoriesForManga(manga: Manga, categories: List<String>) {
-        val dbCategories = db.getCategories().executeAsBlocking()
+    internal fun restoreCategoriesForManga(manga: Manga, categories: List<String>) {
+        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
        val mangaCategoriesToUpdate = ArrayList<MangaCategory>()
        for (backupCategoryStr in categories) {
            for (dbCategory in dbCategories) {
@ -324,45 +251,151 @@ class BackupManager(private val db: DatabaseHelper) {
        if (!mangaCategoriesToUpdate.isEmpty()) {
            val mangaAsList = ArrayList<Manga>()
            mangaAsList.add(manga)
-            db.deleteOldMangasCategories(mangaAsList).executeAsBlocking()
-            db.insertMangasCategories(mangaCategoriesToUpdate).executeAsBlocking()
+            databaseHelper.deleteOldMangasCategories(mangaAsList).executeAsBlocking()
+            databaseHelper.insertMangasCategories(mangaCategoriesToUpdate).executeAsBlocking()
        }
    }

+    /**
+     * Restore history from Json
+     *
+     * @param history list containing history to be restored
+     */
+    internal fun restoreHistoryForManga(history: List<DHistory>) {
+        // List containing history to be updated
+        val historyToBeUpdated = ArrayList<History>()
+        for ((url, lastRead) in history) {
+            val dbHistory = databaseHelper.getHistoryByChapterUrl(url).executeAsBlocking()
+            // Check if history already in database and update
+            if (dbHistory != null) {
+                dbHistory.apply {
+                    last_read = Math.max(lastRead, dbHistory.last_read)
+                }
+                historyToBeUpdated.add(dbHistory)
+            } else {
+                // If not in database create
+                databaseHelper.getChapter(url).executeAsBlocking()?.let {
+                    val historyToAdd = History.create(it).apply {
+                        last_read = lastRead
+                    }
+                    historyToBeUpdated.add(historyToAdd)
+                }
+            }
+        }
+        databaseHelper.updateHistoryLastRead(historyToBeUpdated).executeAsBlocking()
+    }
+
    /**
     * Restores the sync of a manga.
     *
     * @param manga the manga whose sync have to be restored.
     * @param tracks the track list to restore.
     */
-    private fun restoreSyncForManga(manga: Manga, tracks: List<Track>) {
+    internal fun restoreTrackForManga(manga: Manga, tracks: List<Track>) {
        // Fix foreign keys with the current manga id
-        for (track in tracks) {
-            track.manga_id = manga.id!!
-        }
+        tracks.map { it.manga_id = manga.id!! }

-        val dbTracks = db.getTracks(manga).executeAsBlocking()
+        // Get tracks from database
+        val dbTracks = databaseHelper.getTracks(manga).executeAsBlocking()
        val trackToUpdate = ArrayList<Track>()
-        for (backupTrack in tracks) {
-            // Try to find existing chapter in db
-            val pos = dbTracks.indexOf(backupTrack)
-            if (pos != -1) {
-                // The sync is already in the db, only update its fields
-                val dbSync = dbTracks[pos]
-                // Mark the max chapter as read and nothing else
-                dbSync.last_chapter_read = Math.max(backupTrack.last_chapter_read, dbSync.last_chapter_read)
-                trackToUpdate.add(dbSync)
-            } else {
+
+        for (track in tracks) {
+            var isInDatabase = false
+            for (dbTrack in dbTracks) {
+                if (track.sync_id == dbTrack.sync_id) {
+                    // The sync is already in the db, only update its fields
+                    if (track.remote_id != dbTrack.remote_id) {
+                        dbTrack.remote_id = track.remote_id
+                    }
+                    dbTrack.last_chapter_read = Math.max(dbTrack.last_chapter_read, track.last_chapter_read)
+                    isInDatabase = true
+                    trackToUpdate.add(dbTrack)
+                    break
+                }
+            }
+            if (!isInDatabase) {
                // Insert new sync. Let the db assign the id
-                backupTrack.id = null
-                trackToUpdate.add(backupTrack)
+                track.id = null
+                trackToUpdate.add(track)
            }
        }
-
        // Update database
        if (!trackToUpdate.isEmpty()) {
-            db.insertTracks(trackToUpdate).executeAsBlocking()
+            databaseHelper.insertTracks(trackToUpdate).executeAsBlocking()
        }
    }

+    /**
+     * Restore the chapters for manga if chapters already in database
+     *
+     * @param manga manga of chapters
+     * @param chapters list containing chapters that get restored
+     * @return boolean answering if chapter fetch is not needed
+     */
+    internal fun restoreChaptersForManga(manga: Manga, chapters: List<Chapter>): Boolean {
+        val dbChapters = databaseHelper.getChapters(manga).executeAsBlocking()
+
+        // Return if fetch is needed
+        if (dbChapters.isEmpty() || dbChapters.size < chapters.size)
+            return false
+
+        for (chapter in chapters) {
+            val pos = dbChapters.indexOf(chapter)
+            if (pos != -1) {
+                val dbChapter = dbChapters[pos]
+                chapter.id = dbChapter.id
+                chapter.copyFrom(dbChapter)
+                break
+            }
+        }
+        // Filter the chapters that couldn't be found.
+        chapters.filter { it.id != null }
+        chapters.map { it.manga_id = manga.id }
+
+        insertChapters(chapters)
+        return true
+    }
+
+    /**
+     * Returns manga
+     *
+     * @return [Manga], null if not found
+     */
+    internal fun getMangaFromDatabase(manga: Manga): Manga? {
+        return databaseHelper.getManga(manga.url, manga.source).executeAsBlocking()
+    }
+
+    /**
+     * Returns list containing manga from library
+     *
+     * @return [Manga] from library
+     */
+    internal fun getFavoriteManga(): List<Manga> {
+        return databaseHelper.getFavoriteMangas().executeAsBlocking()
+    }
+
+    /**
+     * Inserts manga and returns id
+     *
+     * @return id of [Manga], null if not found
+     */
+    internal fun insertManga(manga: Manga): Long? {
+        return databaseHelper.insertManga(manga).executeAsBlocking().insertedId()
+    }
+
+    /**
+     * Inserts list of chapters
+     */
+    internal fun insertChapters(chapters: List<Chapter>) {
+        databaseHelper.updateChaptersBackup(chapters).executeAsBlocking()
+    }
+
+    /**
+     * Return number of backups.
+     *
+     * @return number of backups selected by user
+     */
+    fun numberOfBackups(): Int {
+        return preferences.numberOfBackups().getOrDefault()
+    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
@ -0,0 +1,406 @@
+package eu.kanade.tachiyomi.data.backup
+
+import android.app.Service
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.IBinder
+import android.os.PowerManager
+import com.github.salomonbrys.kotson.fromJson
+import com.google.gson.JsonArray
+import com.google.gson.JsonParser
+import com.google.gson.stream.JsonReader
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.backup.models.Backup.CATEGORIES
+import eu.kanade.tachiyomi.data.backup.models.Backup.CHAPTERS
+import eu.kanade.tachiyomi.data.backup.models.Backup.HISTORY
+import eu.kanade.tachiyomi.data.backup.models.Backup.MANGA
+import eu.kanade.tachiyomi.data.backup.models.Backup.MANGAS
+import eu.kanade.tachiyomi.data.backup.models.Backup.TRACK
+import eu.kanade.tachiyomi.data.backup.models.Backup.VERSION
+import eu.kanade.tachiyomi.data.backup.models.DHistory
+import eu.kanade.tachiyomi.data.database.DatabaseHelper
+import eu.kanade.tachiyomi.data.database.models.*
+import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.util.chop
+import eu.kanade.tachiyomi.util.isServiceRunning
+import eu.kanade.tachiyomi.util.sendLocalBroadcast
+import rx.Observable
+import rx.Subscription
+import rx.schedulers.Schedulers
+import timber.log.Timber
+import uy.kohesive.injekt.injectLazy
+import java.io.File
+import java.text.SimpleDateFormat
+import java.util.*
+import java.util.concurrent.ExecutorService
+import java.util.concurrent.Executors
+
+/**
+ * Restores backup from json file
+ */
+class BackupRestoreService : Service() {
+
+    companion object {
+
+        /**
+         * Returns the status of the service.
+         *
+         * @param context the application context.
+         * @return true if the service is running, false otherwise.
+         */
+        fun isRunning(context: Context): Boolean {
+            return context.isServiceRunning(BackupRestoreService::class.java)
+        }
+
+        /**
+         * Starts a service to restore a backup from Json
+         *
+         * @param context context of application
+         * @param uri path of Uri
+         */
+        fun start(context: Context, uri: Uri) {
+            if (!isRunning(context)) {
+                val intent = Intent(context, BackupRestoreService::class.java).apply {
+                    putExtra(BackupConst.EXTRA_URI, uri)
+                }
+                context.startService(intent)
+            }
+        }
+
+        /**
+         * Stops the service.
+         *
+         * @param context the application context.
+         */
+        fun stop(context: Context) {
+            context.stopService(Intent(context, BackupRestoreService::class.java))
+        }
+    }
+
+    /**
+     * Wake lock that will be held until the service is destroyed.
+     */
+    private lateinit var wakeLock: PowerManager.WakeLock
+
+    /**
+     * Subscription where the update is done.
+     */
+    private var subscription: Subscription? = null
+
+    /**
+     * The progress of a backup restore
+     */
+    private var restoreProgress = 0
+
+    /**
+     * Amount of manga in Json file (needed for restore)
+     */
+    private var restoreAmount = 0
+
+    /**
+     * List containing errors
+     */
+    private val errors = mutableListOf<Pair<Date, String>>()
+
+    /**
+     * Backup manager
+     */
+    private lateinit var backupManager: BackupManager
+
+    /**
+     * Database
+     */
+    private val db: DatabaseHelper by injectLazy()
+
+    lateinit var executor: ExecutorService
+
+    /**
+     * Method called when the service is created. It injects dependencies and acquire the wake lock.
+     */
+    override fun onCreate() {
+        super.onCreate()
+        wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).newWakeLock(
+                PowerManager.PARTIAL_WAKE_LOCK, "BackupRestoreService:WakeLock")
+        wakeLock.acquire()
+        executor = Executors.newSingleThreadExecutor()
+    }
+
+    /**
+     * Method called when the service is destroyed. It destroys the running subscription and
+     * releases the wake lock.
+     */
+    override fun onDestroy() {
+        subscription?.unsubscribe()
+        executor.shutdown() // must be called after unsubscribe
+        if (wakeLock.isHeld) {
+            wakeLock.release()
+        }
+        super.onDestroy()
+    }
+
+    /**
+     * This method needs to be implemented, but it's not used/needed.
+     */
+    override fun onBind(intent: Intent): IBinder? {
+        return null
+    }
+
+    /**
+     * Method called when the service receives an intent.
+     *
+     * @param intent the start intent from.
+     * @param flags the flags of the command.
+     * @param startId the start id of this command.
+     * @return the start value of the command.
+     */
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        if (intent == null) return Service.START_NOT_STICKY
+
+        val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)
+
+        // Unsubscribe from any previous subscription if needed.
+        subscription?.unsubscribe()
+
+        subscription = Observable.using(
+                { db.lowLevel().beginTransaction() },
+                { getRestoreObservable(uri).doOnNext{ db.lowLevel().setTransactionSuccessful() } },
+                { executor.execute { db.lowLevel().endTransaction() } })
+                .doAfterTerminate { stopSelf(startId) }
+                .subscribeOn(Schedulers.from(executor))
+                .subscribe()
+
+        return Service.START_NOT_STICKY
+    }
+
+    /**
+     * Returns an [Observable] containing restore process.
+     *
+     * @param uri restore file
+     * @return [Observable<Manga>]
+     */
+    private fun getRestoreObservable(uri: Uri): Observable<List<Manga>> {
+        val startTime = System.currentTimeMillis()
+
+        val reader = JsonReader(contentResolver.openInputStream(uri).bufferedReader())
+        val json = JsonParser().parse(reader).asJsonObject
+
+        // Get parser version
+        val version = json.get(VERSION)?.asInt ?: 1
+
+        // Initialize manager
+        backupManager = BackupManager(this, version)
+
+        val mangasJson = json.get(MANGAS).asJsonArray
+
+        restoreAmount = mangasJson.size() + 1 // +1 for categories
+        restoreProgress = 0
+        errors.clear()
+
+        // Restore categories
+        json.get(CATEGORIES)?.let {
+            backupManager.restoreCategories(it.asJsonArray)
+            restoreProgress += 1
+            showRestoreProgress(restoreProgress, restoreAmount, "Categories added", errors.size)
+        }
+
+        return Observable.from(mangasJson)
+                .concatMap {
+                    val obj = it.asJsonObject
+                    val manga = backupManager.parser.fromJson<MangaImpl>(obj.get(MANGA))
+                    val chapters = backupManager.parser.fromJson<List<ChapterImpl>>(obj.get(CHAPTERS) ?: JsonArray())
+                    val categories = backupManager.parser.fromJson<List<String>>(obj.get(CATEGORIES) ?: JsonArray())
+                    val history = backupManager.parser.fromJson<List<DHistory>>(obj.get(HISTORY) ?: JsonArray())
+                    val tracks = backupManager.parser.fromJson<List<TrackImpl>>(obj.get(TRACK) ?: JsonArray())
+
+                    val observable = getMangaRestoreObservable(manga, chapters, categories, history, tracks)
+                    if (observable != null) {
+                        observable
+                    } else {
+                        errors.add(Date() to "${manga.title} - ${getString(R.string.source_not_found)}")
+                        restoreProgress += 1
+                        val content = getString(R.string.dialog_restoring_source_not_found, manga.title.chop(15))
+                        showRestoreProgress(restoreProgress, restoreAmount, manga.title, errors.size, content)
+                        Observable.just(manga)
+                    }
+                }
+                .toList()
+                .doOnNext {
+                    val endTime = System.currentTimeMillis()
+                    val time = endTime - startTime
+                    val logFile = writeErrorLog()
+                    val completeIntent = Intent(BackupConst.INTENT_FILTER).apply {
+                        putExtra(BackupConst.EXTRA_TIME, time)
+                        putExtra(BackupConst.EXTRA_ERRORS, errors.size)
+                        putExtra(BackupConst.EXTRA_ERROR_FILE_PATH, logFile.parent)
+                        putExtra(BackupConst.EXTRA_ERROR_FILE, logFile.name)
+                        putExtra(BackupConst.ACTION, BackupConst.ACTION_RESTORE_COMPLETED_DIALOG)
+                    }
+                    sendLocalBroadcast(completeIntent)
+
+                }
+                .doOnError { error ->
+                    Timber.e(error)
+                    writeErrorLog()
+                    val errorIntent = Intent(BackupConst.INTENT_FILTER).apply {
+                        putExtra(BackupConst.ACTION, BackupConst.ACTION_ERROR_RESTORE_DIALOG)
+                        putExtra(BackupConst.EXTRA_ERROR_MESSAGE, error.message)
+                    }
+                    sendLocalBroadcast(errorIntent)
+                }
+                .onErrorReturn { emptyList() }
+    }
+
+    /**
+     * Write errors to error log
+     */
+    private fun writeErrorLog(): File {
+        try {
+            if (errors.isNotEmpty()) {
+                val destFile = File(externalCacheDir, "tachiyomi_restore.log")
+                val sdf = SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault())
+
+                destFile.bufferedWriter().use { out ->
+                    errors.forEach { (date, message) ->
+                        out.write("[${sdf.format(date)}] $message\n")
+                    }
+                }
+                return destFile
+            }
+        } catch (e: Exception) {
+            // Empty
+        }
+        return File("")
+    }
+
+    /**
+     * Returns a manga restore observable
+     *
+     * @param manga manga data from json
+     * @param chapters chapters data from json
+     * @param categories categories data from json
+     * @param history history data from json
+     * @param tracks tracking data from json
+     * @return [Observable] containing manga restore information
+     */
+    private fun getMangaRestoreObservable(manga: Manga, chapters: List<Chapter>,
+                                          categories: List<String>, history: List<DHistory>,
+                                          tracks: List<Track>): Observable<Manga>? {
+        // Get source
+        val source = backupManager.sourceManager.get(manga.source) ?: return null
+        val dbManga = backupManager.getMangaFromDatabase(manga)
+
+        if (dbManga == null) {
+            // Manga not in database
+            return mangaFetchObservable(source, manga, chapters, categories, history, tracks)
+        } else { // Manga in database
+            // Copy information from manga already in database
+            backupManager.restoreMangaNoFetch(manga, dbManga)
+            // Fetch rest of manga information
+            return mangaNoFetchObservable(source, manga, chapters, categories, history, tracks)
+        }
+    }
+
+    /**
+     * [Observable] that fetches manga information
+     *
+     * @param manga manga that needs updating
+     * @param chapters chapters of manga that needs updating
+     * @param categories categories that need updating
+     */
+    private fun mangaFetchObservable(source: Source, manga: Manga, chapters: List<Chapter>,
+                                     categories: List<String>, history: List<DHistory>,
+                                     tracks: List<Track>): Observable<Manga> {
+        return backupManager.restoreMangaFetchObservable(source, manga)
+                .onErrorReturn {
+                    errors.add(Date() to "${manga.title} - ${it.message}")
+                    manga
+                }
+                .filter { it.id != null }
+                .flatMap { manga ->
+                    chapterFetchObservable(source, manga, chapters)
+                            // Convert to the manga that contains new chapters.
+                            .map { manga }
+                }
+                .doOnNext {
+                    // Restore categories
+                    backupManager.restoreCategoriesForManga(it, categories)
+
+                    // Restore history
+                    backupManager.restoreHistoryForManga(history)
+
+                    // Restore tracking
+                    backupManager.restoreTrackForManga(it, tracks)
+                }
+                .doOnCompleted {
+                    restoreProgress += 1
+                    showRestoreProgress(restoreProgress, restoreAmount, manga.title, errors.size)
+                }
+    }
+
+    private fun mangaNoFetchObservable(source: Source, backupManga: Manga, chapters: List<Chapter>,
+                                       categories: List<String>, history: List<DHistory>,
+                                       tracks: List<Track>): Observable<Manga> {
+
+        return Observable.just(backupManga)
+                .flatMap { manga ->
+                    if (!backupManager.restoreChaptersForManga(manga, chapters)) {
+                        chapterFetchObservable(source, manga, chapters)
+                                .map { manga }
+                    } else {
+                        Observable.just(manga)
+                    }
+                }
+                .doOnNext {
+                    // Restore categories
+                    backupManager.restoreCategoriesForManga(it, categories)
+
+                    // Restore history
+                    backupManager.restoreHistoryForManga(history)
+
+                    // Restore tracking
+                    backupManager.restoreTrackForManga(it, tracks)
+                }
+                .doOnCompleted {
+                    restoreProgress += 1
+                    showRestoreProgress(restoreProgress, restoreAmount, backupManga.title, errors.size)
+                }
+    }
+
+    /**
+     * [Observable] that fetches chapter information
+     *
+     * @param source source of manga
+     * @param manga manga that needs updating
+     * @return [Observable] that contains manga
+     */
+    private fun chapterFetchObservable(source: Source, manga: Manga, chapters: List<Chapter>): Observable<Pair<List<Chapter>, List<Chapter>>> {
+        return backupManager.restoreChapterFetchObservable(source, manga, chapters)
+                // If there's any error, return empty update and continue.
+                .onErrorReturn {
+                    errors.add(Date() to "${manga.title} - ${it.message}")
+                    Pair(emptyList<Chapter>(), emptyList<Chapter>())
+                }
+    }
+
+
+    /**
+     * Called to update dialog in [BackupConst]
+     *
+     * @param progress restore progress
+     * @param amount total restoreAmount of manga
+     * @param title title of restored manga
+     */
+    private fun showRestoreProgress(progress: Int, amount: Int, title: String, errors: Int,
+                                    content: String = getString(R.string.dialog_restoring_backup, title.chop(15))) {
+        val intent = Intent(BackupConst.INTENT_FILTER).apply {
+            putExtra(BackupConst.EXTRA_PROGRESS, progress)
+            putExtra(BackupConst.EXTRA_AMOUNT, amount)
+            putExtra(BackupConst.EXTRA_CONTENT, content)
+            putExtra(BackupConst.EXTRA_ERRORS, errors)
+            putExtra(BackupConst.ACTION, BackupConst.ACTION_SET_PROGRESS_DIALOG)
+        }
+        sendLocalBroadcast(intent)
+    }
+
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/models/Backup.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/models/Backup.kt
@ -0,0 +1,23 @@
+package eu.kanade.tachiyomi.data.backup.models
+
+import java.text.SimpleDateFormat
+import java.util.*
+
+/**
+ * Json values
+ */
+object Backup {
+    const val CURRENT_VERSION = 2
+    const val MANGA = "manga"
+    const val MANGAS = "mangas"
+    const val TRACK = "track"
+    const val CHAPTERS = "chapters"
+    const val CATEGORIES = "categories"
+    const val HISTORY = "history"
+    const val VERSION = "version"
+
+    fun getDefaultFilename(): String {
+        val date = SimpleDateFormat("yyyy-MM-dd_HH-mm", Locale.getDefault()).format(Date())
+        return "tachiyomi_$date.json"
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/models/DHistory.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/models/DHistory.kt
@ -0,0 +1,3 @@
+package eu.kanade.tachiyomi.data.backup.models
+
+data class DHistory(val url: String,val lastRead: Long)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/BooleanSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/BooleanSerializer.kt
@ -1,16 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.serializer
-
-import com.google.gson.JsonElement
-import com.google.gson.JsonPrimitive
-import com.google.gson.JsonSerializationContext
-import com.google.gson.JsonSerializer
-import java.lang.reflect.Type
-
-class BooleanSerializer : JsonSerializer<Boolean> {
-
-    override fun serialize(value: Boolean?, type: Type, context: JsonSerializationContext): JsonElement? {
-        if (value != null && value != false)
-            return JsonPrimitive(value)
-        return null
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/CategoryTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/CategoryTypeAdapter.kt
@ -0,0 +1,31 @@
+package eu.kanade.tachiyomi.data.backup.serializer
+
+import com.github.salomonbrys.kotson.typeAdapter
+import com.google.gson.TypeAdapter
+import eu.kanade.tachiyomi.data.database.models.CategoryImpl
+
+/**
+ * JSON Serializer used to write / read [CategoryImpl] to / from json
+ */
+object CategoryTypeAdapter {
+
+    fun build(): TypeAdapter<CategoryImpl> {
+        return typeAdapter {
+            write {
+                beginArray()
+                value(it.name)
+                value(it.order)
+                endArray()
+            }
+
+            read {
+                beginArray()
+                val category = CategoryImpl()
+                category.name = nextString()
+                category.order = nextInt()
+                endArray()
+                category
+            }
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/ChapterTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/ChapterTypeAdapter.kt
@ -0,0 +1,61 @@
+package eu.kanade.tachiyomi.data.backup.serializer
+
+import com.github.salomonbrys.kotson.typeAdapter
+import com.google.gson.TypeAdapter
+import com.google.gson.stream.JsonToken
+import eu.kanade.tachiyomi.data.database.models.ChapterImpl
+
+/**
+ * JSON Serializer used to write / read [ChapterImpl] to / from json
+ */
+object ChapterTypeAdapter {
+
+    private const val URL = "u"
+    private const val READ = "r"
+    private const val BOOKMARK = "b"
+    private const val LAST_READ = "l"
+
+    fun build(): TypeAdapter<ChapterImpl> {
+        return typeAdapter {
+            write {
+                if (it.read || it.bookmark || it.last_page_read != 0) {
+                    beginObject()
+                    name(URL)
+                    value(it.url)
+                    if (it.read) {
+                        name(READ)
+                        value(1)
+                    }
+                    if (it.bookmark) {
+                        name(BOOKMARK)
+                        value(1)
+                    }
+                    if (it.last_page_read != 0) {
+                        name(LAST_READ)
+                        value(it.last_page_read)
+                    }
+                    endObject()
+                }
+            }
+
+            read {
+                val chapter = ChapterImpl()
+                beginObject()
+                while (hasNext()) {
+                    if (peek() == JsonToken.NAME) {
+                        val name = nextName()
+
+                        when (name) {
+                            URL -> chapter.url = nextString()
+                            READ -> chapter.read = nextInt() == 1
+                            BOOKMARK -> chapter.bookmark = nextInt() == 1
+                            LAST_READ -> chapter.last_page_read = nextInt()
+                        }
+                    }
+                }
+                endObject()
+                chapter
+            }
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/HistoryTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/HistoryTypeAdapter.kt
@ -0,0 +1,32 @@
+package eu.kanade.tachiyomi.data.backup.serializer
+
+import com.github.salomonbrys.kotson.typeAdapter
+import com.google.gson.TypeAdapter
+import eu.kanade.tachiyomi.data.backup.models.DHistory
+
+/**
+ * JSON Serializer used to write / read [DHistory] to / from json
+ */
+object HistoryTypeAdapter {
+
+    fun build(): TypeAdapter<DHistory> {
+        return typeAdapter {
+            write {
+                if (it.lastRead != 0L) {
+                    beginArray()
+                    value(it.url)
+                    value(it.lastRead)
+                    endArray()
+                }
+            }
+
+            read {
+                beginArray()
+                val url = nextString()
+                val lastRead = nextLong()
+                endArray()
+                DHistory(url, lastRead)
+            }
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/IdExclusion.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/IdExclusion.kt
@ -1,27 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.serializer
-
-import com.google.gson.ExclusionStrategy
-import com.google.gson.FieldAttributes
-import eu.kanade.tachiyomi.data.database.models.CategoryImpl
-import eu.kanade.tachiyomi.data.database.models.ChapterImpl
-import eu.kanade.tachiyomi.data.database.models.MangaImpl
-import eu.kanade.tachiyomi.data.database.models.TrackImpl
-
-class IdExclusion : ExclusionStrategy {
-
-    private val categoryExclusions = listOf("id")
-    private val mangaExclusions = listOf("id")
-    private val chapterExclusions = listOf("id", "manga_id")
-    private val syncExclusions = listOf("id", "manga_id", "update")
-
-    override fun shouldSkipField(f: FieldAttributes) = when (f.declaringClass) {
-        MangaImpl::class.java -> mangaExclusions.contains(f.name)
-        ChapterImpl::class.java -> chapterExclusions.contains(f.name)
-        TrackImpl::class.java -> syncExclusions.contains(f.name)
-        CategoryImpl::class.java -> categoryExclusions.contains(f.name)
-        else -> false
-    }
-
-    override fun shouldSkipClass(clazz: Class<*>) = false
-
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/IntegerSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/IntegerSerializer.kt
@ -1,17 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.serializer
-
-import com.google.gson.JsonElement
-import com.google.gson.JsonPrimitive
-import com.google.gson.JsonSerializationContext
-import com.google.gson.JsonSerializer
-
-import java.lang.reflect.Type
-
-class IntegerSerializer : JsonSerializer<Int> {
-
-    override fun serialize(value: Int?, type: Type, context: JsonSerializationContext): JsonElement? {
-        if (value != null && value !== 0)
-            return JsonPrimitive(value)
-        return null
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/LongSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/LongSerializer.kt
@ -1,16 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.serializer
-
-import com.google.gson.JsonElement
-import com.google.gson.JsonPrimitive
-import com.google.gson.JsonSerializationContext
-import com.google.gson.JsonSerializer
-import java.lang.reflect.Type
-
-class LongSerializer : JsonSerializer<Long> {
-
-    override fun serialize(value: Long?, type: Type, context: JsonSerializationContext): JsonElement? {
-        if (value != null && value !== 0L)
-            return JsonPrimitive(value)
-        return null
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/MangaTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/MangaTypeAdapter.kt
@ -0,0 +1,37 @@
+package eu.kanade.tachiyomi.data.backup.serializer
+
+import com.github.salomonbrys.kotson.typeAdapter
+import com.google.gson.TypeAdapter
+import eu.kanade.tachiyomi.data.database.models.MangaImpl
+
+/**
+ * JSON Serializer used to write / read [MangaImpl] to / from json
+ */
+object MangaTypeAdapter {
+
+    fun build(): TypeAdapter<MangaImpl> {
+        return typeAdapter {
+            write {
+                beginArray()
+                value(it.url)
+                value(it.title)
+                value(it.source)
+                value(it.viewer)
+                value(it.chapter_flags)
+                endArray()
+            }
+
+            read {
+                beginArray()
+                val manga = MangaImpl()
+                manga.url = nextString()
+                manga.title = nextString()
+                manga.source = nextLong()
+                manga.viewer = nextInt()
+                manga.chapter_flags = nextInt()
+                endArray()
+                manga
+            }
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/TrackTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/TrackTypeAdapter.kt
@ -0,0 +1,53 @@
+package eu.kanade.tachiyomi.data.backup.serializer
+
+import com.github.salomonbrys.kotson.typeAdapter
+import com.google.gson.TypeAdapter
+import com.google.gson.stream.JsonToken
+import eu.kanade.tachiyomi.data.database.models.TrackImpl
+
+/**
+ * JSON Serializer used to write / read [TrackImpl] to / from json
+ */
+object TrackTypeAdapter {
+
+    private const val SYNC = "s"
+    private const val REMOTE = "r"
+    private const val TITLE = "t"
+    private const val LAST_READ = "l"
+
+    fun build(): TypeAdapter<TrackImpl> {
+        return typeAdapter {
+            write {
+                beginObject()
+                name(TITLE)
+                value(it.title)
+                name(SYNC)
+                value(it.sync_id)
+                name(REMOTE)
+                value(it.remote_id)
+                name(LAST_READ)
+                value(it.last_chapter_read)
+                endObject()
+            }
+
+            read {
+                val track = TrackImpl()
+                beginObject()
+                while (hasNext()) {
+                    if (peek() == JsonToken.NAME) {
+                        val name = nextName()
+
+                        when (name) {
+                            TITLE -> track.title = nextString()
+                            SYNC -> track.sync_id = nextInt()
+                            REMOTE -> track.remote_id = nextInt()
+                            LAST_READ -> track.last_chapter_read = nextInt()
+                        }
+                    }
+                }
+                endObject()
+                track
+            }
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
@ -187,12 +187,12 @@ class ChapterCache(private val context: Context) {
            editor = diskCache.edit(key) ?: throw IOException("Unable to edit key")

            // Get OutputStream and write image with Okio.
-            response.body().source().saveTo(editor.newOutputStream(0))
+            response.body()!!.source().saveTo(editor.newOutputStream(0))

            diskCache.flush()
            editor.commit()
        } finally {
-            response.body().close()
+            response.body()?.close()
            editor?.abortUnlessCommitted()
        }
    }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/DatabaseHelper.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/DatabaseHelper.kt
@ -24,4 +24,6 @@ open class DatabaseHelper(context: Context)

    inline fun inTransaction(block: () -> Unit) = db.inTransaction(block)

+    fun lowLevel() = db.lowLevel()
+
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/HistoryTypeMapping.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/HistoryTypeMapping.kt
@ -10,6 +10,7 @@ import com.pushtorefresh.storio.sqlite.queries.DeleteQuery
 import com.pushtorefresh.storio.sqlite.queries.InsertQuery
 import com.pushtorefresh.storio.sqlite.queries.UpdateQuery
 import eu.kanade.tachiyomi.data.database.models.History
+import eu.kanade.tachiyomi.data.database.models.HistoryImpl
 import eu.kanade.tachiyomi.data.database.tables.HistoryTable.COL_CHAPTER_ID
 import eu.kanade.tachiyomi.data.database.tables.HistoryTable.COL_ID
 import eu.kanade.tachiyomi.data.database.tables.HistoryTable.COL_LAST_READ
@ -44,7 +45,7 @@ open class HistoryPutResolver : DefaultPutResolver<History>() {

 class HistoryGetResolver : DefaultGetResolver<History>() {

-    override fun mapFromCursor(cursor: Cursor): History = History().apply {
+    override fun mapFromCursor(cursor: Cursor): History = HistoryImpl().apply {
        id = cursor.getLong(cursor.getColumnIndex(COL_ID))
        chapter_id = cursor.getLong(cursor.getColumnIndex(COL_CHAPTER_ID))
        last_read = cursor.getLong(cursor.getColumnIndex(COL_LAST_READ))
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/History.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/History.kt
@ -5,27 +5,27 @@ import java.io.Serializable
 /**
 * Object containing the history statistics of a chapter
 */
-class History : Serializable {
+interface History : Serializable {

    /**
     * Id of history object.
     */
-    var id: Long? = null
+    var id: Long?

    /**
     * Chapter id of history object.
     */
-    var chapter_id: Long = 0
+    var chapter_id: Long

    /**
     * Last time chapter was read in time long format
     */
-    var last_read: Long = 0
+    var last_read: Long

    /**
     * Total time chapter was read - todo not yet implemented
     */
-    var time_read: Long = 0
+    var time_read: Long

    companion object {

@ -35,10 +35,8 @@ class History : Serializable {
         * @param chapter chapter object
         * @return history object
         */
-        fun create(chapter: Chapter): History {
-            val history = History()
-            history.chapter_id = chapter.id!!
-            return history
+        fun create(chapter: Chapter): History =  HistoryImpl().apply {
+            this.chapter_id = chapter.id!!
        }
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/HistoryImpl.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/HistoryImpl.kt
@ -0,0 +1,27 @@
+package eu.kanade.tachiyomi.data.database.models
+
+/**
+ * Object containing the history statistics of a chapter
+ */
+class HistoryImpl : History {
+
+    /**
+     * Id of history object.
+     */
+    override var id: Long? = null
+
+    /**
+     * Chapter id of history object.
+     */
+    override var chapter_id: Long = 0
+
+    /**
+     * Last time chapter was read in time long format
+     */
+    override var last_read: Long = 0
+
+    /**
+     * Total time chapter was read - todo not yet implemented
+     */
+    override var time_read: Long = 0
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/MangaChapterHistory.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/MangaChapterHistory.kt
@ -7,4 +7,4 @@ package eu.kanade.tachiyomi.data.database.models
 * @param chapter object containing chater
 * @param history      object containing history
 */
-class MangaChapterHistory(val manga: Manga, val chapter: Chapter, val history: History)
+data class MangaChapterHistory(val manga: Manga, val chapter: Chapter, val history: History)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/ChapterQueries.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/ChapterQueries.kt
@ -6,6 +6,7 @@ import eu.kanade.tachiyomi.data.database.DbProvider
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.database.models.MangaChapter
+import eu.kanade.tachiyomi.data.database.resolvers.ChapterBackupPutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.ChapterProgressPutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.ChapterSourceOrderPutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.MangaChapterGetResolver
@ -42,6 +43,16 @@ interface ChapterQueries : DbProvider {
                    .build())
            .prepare()

+    fun getChapter(url: String) = db.get()
+            .`object`(Chapter::class.java)
+            .withQuery(Query.builder()
+                    .table(ChapterTable.TABLE)
+                    .where("${ChapterTable.COL_URL} = ?")
+                    .whereArgs(url)
+                    .build())
+            .prepare()
+
+
    fun insertChapter(chapter: Chapter) = db.put().`object`(chapter).prepare()

    fun insertChapters(chapters: List<Chapter>) = db.put().objects(chapters).prepare()
@ -50,6 +61,11 @@ interface ChapterQueries : DbProvider {

    fun deleteChapters(chapters: List<Chapter>) = db.delete().objects(chapters).prepare()

+    fun updateChaptersBackup(chapters: List<Chapter>) = db.put()
+            .objects(chapters)
+            .withPutResolver(ChapterBackupPutResolver())
+            .prepare()
+
    fun updateChapterProgress(chapter: Chapter) = db.put()
            .`object`(chapter)
            .withPutResolver(ChapterProgressPutResolver())
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/HistoryQueries.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/HistoryQueries.kt
@ -1,5 +1,6 @@
 package eu.kanade.tachiyomi.data.database.queries

+import com.pushtorefresh.storio.sqlite.queries.DeleteQuery
 import com.pushtorefresh.storio.sqlite.queries.RawQuery
 import eu.kanade.tachiyomi.data.database.DbProvider
 import eu.kanade.tachiyomi.data.database.models.History
@ -40,6 +41,15 @@ interface HistoryQueries : DbProvider {
                    .build())
            .prepare()

+    fun getHistoryByChapterUrl(chapterUrl: String) = db.get()
+            .`object`(History::class.java)
+            .withQuery(RawQuery.builder()
+                    .query(getHistoryByChapterUrl())
+                    .args(chapterUrl)
+                    .observesTables(HistoryTable.TABLE)
+                    .build())
+            .prepare()
+
    /**
     * Updates the history last read.
     * Inserts history object if not yet in database
@ -59,4 +69,18 @@ interface HistoryQueries : DbProvider {
            .objects(historyList)
            .withPutResolver(HistoryLastReadPutResolver())
            .prepare()
+
+    fun deleteHistory() = db.delete()
+            .byQuery(DeleteQuery.builder()
+                    .table(HistoryTable.TABLE)
+                    .build())
+            .prepare()
+
+    fun deleteHistoryNoLastRead() = db.delete()
+            .byQuery(DeleteQuery.builder()
+                    .table(HistoryTable.TABLE)
+                    .where("${HistoryTable.COL_LAST_READ} = ?")
+                    .whereArgs(0)
+                    .build())
+            .prepare()
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/MangaQueries.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/MangaQueries.kt
@ -8,6 +8,7 @@ import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.database.resolvers.LibraryMangaGetResolver
 import eu.kanade.tachiyomi.data.database.resolvers.MangaFlagsPutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.MangaLastUpdatedPutResolver
+import eu.kanade.tachiyomi.data.database.tables.CategoryTable
 import eu.kanade.tachiyomi.data.database.tables.ChapterTable
 import eu.kanade.tachiyomi.data.database.tables.MangaCategoryTable
 import eu.kanade.tachiyomi.data.database.tables.MangaTable
@ -25,7 +26,7 @@ interface MangaQueries : DbProvider {
            .listOfObjects(Manga::class.java)
            .withQuery(RawQuery.builder()
                    .query(libraryQuery)
-                    .observesTables(MangaTable.TABLE, ChapterTable.TABLE, MangaCategoryTable.TABLE)
+                    .observesTables(MangaTable.TABLE, ChapterTable.TABLE, MangaCategoryTable.TABLE, CategoryTable.TABLE)
                    .build())
            .withGetResolver(LibraryMangaGetResolver.INSTANCE)
            .prepare()
@ -84,6 +85,12 @@ interface MangaQueries : DbProvider {
                    .build())
            .prepare()

+    fun deleteMangas() = db.delete()
+            .byQuery(DeleteQuery.builder()
+                    .table(MangaTable.TABLE)
+                    .build())
+            .prepare()
+
    fun getLastReadManga() = db.get()
            .listOfObjects(Manga::class.java)
            .withQuery(RawQuery.builder()
@ -91,4 +98,7 @@ interface MangaQueries : DbProvider {
                    .observesTables(MangaTable.TABLE)
                    .build())
            .prepare()
+
+    fun getTotalChapterManga() = db.get().listOfObjects(Manga::class.java)
+            .withQuery(RawQuery.builder().query(getTotalChapterMangaQuery()).observesTables(MangaTable.TABLE).build()).prepare();
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/RawQueries.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/RawQueries.kt
@ -73,6 +73,14 @@ fun getHistoryByMangaId() = """
    WHERE ${Chapter.TABLE}.${Chapter.COL_MANGA_ID} = ? AND ${History.TABLE}.${History.COL_CHAPTER_ID} = ${Chapter.TABLE}.${Chapter.COL_ID}
 """

+fun getHistoryByChapterUrl() = """
+    SELECT ${History.TABLE}.*
+    FROM ${History.TABLE}
+    JOIN ${Chapter.TABLE}
+    ON ${History.TABLE}.${History.COL_CHAPTER_ID} = ${Chapter.TABLE}.${Chapter.COL_ID}
+    WHERE ${Chapter.TABLE}.${Chapter.COL_URL} = ? AND ${History.TABLE}.${History.COL_CHAPTER_ID} = ${Chapter.TABLE}.${Chapter.COL_ID}
+"""
+
 fun getLastReadMangaQuery() = """
    SELECT ${Manga.TABLE}.*, MAX(${History.TABLE}.${History.COL_LAST_READ}) AS max
    FROM ${Manga.TABLE}
@ -85,6 +93,15 @@ fun getLastReadMangaQuery() = """
    ORDER BY max DESC
 """

+fun getTotalChapterMangaQuery()= """
+    SELECT ${Manga.TABLE}.*
+    FROM ${Manga.TABLE}
+    JOIN ${Chapter.TABLE}
+    ON ${Manga.TABLE}.${Manga.COL_ID} = ${Chapter.TABLE}.${Chapter.COL_MANGA_ID}
+    GROUP BY ${Manga.TABLE}.${Manga.COL_ID}
+    ORDER by COUNT(*)
+"""
+
 /**
 * Query to get the categories for a manga.
 */
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterBackupPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterBackupPutResolver.kt
@ -0,0 +1,35 @@
+package eu.kanade.tachiyomi.data.database.resolvers
+
+import android.content.ContentValues
+import com.pushtorefresh.storio.sqlite.StorIOSQLite
+import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
+import com.pushtorefresh.storio.sqlite.operations.put.PutResult
+import com.pushtorefresh.storio.sqlite.queries.UpdateQuery
+import eu.kanade.tachiyomi.data.database.inTransactionReturn
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.tables.ChapterTable
+
+class ChapterBackupPutResolver : PutResolver<Chapter>() {
+
+    override fun performPut(db: StorIOSQLite, chapter: Chapter) = db.inTransactionReturn {
+        val updateQuery = mapToUpdateQuery(chapter)
+        val contentValues = mapToContentValues(chapter)
+
+        val numberOfRowsUpdated = db.lowLevel().update(updateQuery, contentValues)
+        PutResult.newUpdateResult(numberOfRowsUpdated, updateQuery.table())
+    }
+
+    fun mapToUpdateQuery(chapter: Chapter) = UpdateQuery.builder()
+            .table(ChapterTable.TABLE)
+            .where("${ChapterTable.COL_URL} = ?")
+            .whereArgs(chapter.url)
+            .build()
+
+    fun mapToContentValues(chapter: Chapter) = ContentValues(3).apply {
+        put(ChapterTable.COL_READ, chapter.read)
+        put(ChapterTable.COL_BOOKMARK, chapter.bookmark)
+        put(ChapterTable.COL_LAST_PAGE_READ, chapter.last_page_read)
+    }
+
+}
+
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/Downloader.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/Downloader.kt
@ -380,7 +380,7 @@ class Downloader(private val context: Context, private val provider: DownloadPro
                .map { response ->
                    val file = tmpDir.createFile("$filename.tmp")
                    try {
-                        response.body().source().saveTo(file.openOutputStream())
+                        response.body()!!.source().saveTo(file.openOutputStream())
                        val extension = getImageExtension(response, file)
                        file.renameTo("$filename.$extension")
                    } catch (e: Exception) {
@ -403,7 +403,7 @@ class Downloader(private val context: Context, private val provider: DownloadPro
     */
    private fun getImageExtension(response: Response, file: UniFile): String {
        // Read content type if available.
-        val mime = response.body().contentType()?.let { ct -> "${ct.type()}/${ct.subtype()}" }
+        val mime = response.body()?.contentType()?.let { ct -> "${ct.type()}/${ct.subtype()}" }
            // Else guess from the uri.
            ?: context.contentResolver.getType(file.uri)
            // Else read magic numbers.
--- a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
@ -1,10 +1,12 @@
 package eu.kanade.tachiyomi.data.library

+import android.app.Notification
 import android.app.PendingIntent
 import android.app.Service
 import android.content.Context
 import android.content.Intent
 import android.graphics.BitmapFactory
+import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
 import android.support.v4.app.NotificationCompat
@ -20,6 +22,7 @@ import eu.kanade.tachiyomi.data.library.LibraryUpdateService.Companion.start
 import eu.kanade.tachiyomi.data.notification.NotificationReceiver
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.data.preference.getOrDefault
+import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.source.model.SManga
 import eu.kanade.tachiyomi.source.online.HttpSource
@ -28,7 +31,9 @@ import eu.kanade.tachiyomi.util.*
 import rx.Observable
 import rx.Subscription
 import rx.schedulers.Schedulers
-import uy.kohesive.injekt.injectLazy
+import timber.log.Timber
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
 import java.util.*
 import java.util.concurrent.atomic.AtomicInteger

@ -40,27 +45,13 @@ import java.util.concurrent.atomic.AtomicInteger
 * progress of the update, and if case of an unexpected error, this service will be silently
 * destroyed.
 */
-class LibraryUpdateService : Service() {
-
-    /**
-     * Database helper.
-     */
-    val db: DatabaseHelper by injectLazy()
-
-    /**
-     * Source manager.
-     */
-    val sourceManager: SourceManager by injectLazy()
-
-    /**
-     * Preferences.
-     */
-    val preferences: PreferencesHelper by injectLazy()
-
-    /**
-     * Download Manager
-     */
-    val downloadManager: DownloadManager by injectLazy()
+class LibraryUpdateService(
+        val db: DatabaseHelper = Injekt.get(),
+        val sourceManager: SourceManager = Injekt.get(),
+        val preferences: PreferencesHelper = Injekt.get(),
+        val downloadManager: DownloadManager = Injekt.get(),
+        val trackManager: TrackManager = Injekt.get()
+) : Service() {

    /**
     * Wake lock that will be held until the service is destroyed.
@ -75,29 +66,47 @@ class LibraryUpdateService : Service() {
    /**
     * Pending intent of action that cancels the library update
     */
-    private val cancelPendingIntent by lazy {NotificationReceiver.cancelLibraryUpdatePendingBroadcast(this)}
+    private val cancelIntent by lazy {
+        NotificationReceiver.cancelLibraryUpdatePendingBroadcast(this)
+    }

    /**
-     * Id of the library update notification.
+     * Bitmap of the app for notifications.
     */
-    private val notificationId: Int
-        get() = Constants.NOTIFICATION_LIBRARY_ID
-
    private val notificationBitmap by lazy {
        BitmapFactory.decodeResource(resources, R.mipmap.ic_launcher)
    }

+    /**
+     * Cached progress notification to avoid creating a lot.
+     */
+    private val progressNotification by lazy { NotificationCompat.Builder(this)
+            .setSmallIcon(R.drawable.ic_refresh_white_24dp_img)
+            .setLargeIcon(notificationBitmap)
+            .setOngoing(true)
+            .addAction(R.drawable.ic_clear_grey_24dp_img, getString(android.R.string.cancel), cancelIntent)
+    }
+
+    /**
+     * Defines what should be updated within a service execution.
+     */
+    enum class Target {
+        CHAPTERS, // Manga chapters
+        DETAILS,  // Manga metadata
+        TRACKING  // Tracking metadata
+    }
+
    companion object {

        /**
         * Key for category to update.
         */
-        const val UPDATE_CATEGORY = "category"
+        const val KEY_CATEGORY = "category"

        /**
-         * Key for updating the details instead of the chapters.
+         * Key that defines what should be updated.
         */
-        const val UPDATE_DETAILS = "details"
+        const val KEY_TARGET = "target"

        /**
         * Returns the status of the service.
@ -106,7 +115,7 @@ class LibraryUpdateService : Service() {
         * @return true if the service is running, false otherwise.
         */
        fun isRunning(context: Context): Boolean {
-            return AndroidComponentUtil.isServiceRunning(context, LibraryUpdateService::class.java)
+            return context.isServiceRunning(LibraryUpdateService::class.java)
        }

        /**
@ -115,13 +124,13 @@ class LibraryUpdateService : Service() {
         *
         * @param context the application context.
         * @param category a specific category to update, or null for global update.
-         * @param details whether to update the details instead of the list of chapters.
+         * @param target defines what should be updated.
         */
-        fun start(context: Context, category: Category? = null, details: Boolean = false) {
+        fun start(context: Context, category: Category? = null, target: Target = Target.CHAPTERS) {
            if (!isRunning(context)) {
                val intent = Intent(context, LibraryUpdateService::class.java).apply {
-                    putExtra(UPDATE_DETAILS, details)
-                    category?.let { putExtra(UPDATE_CATEGORY, it.id) }
+                    putExtra(KEY_TARGET, target)
+                    category?.let { putExtra(KEY_CATEGORY, it.id) }
                }
                context.startService(intent)
            }
@ -144,16 +153,20 @@ class LibraryUpdateService : Service() {
     */
    override fun onCreate() {
        super.onCreate()
-        createAndAcquireWakeLock()
+        wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).newWakeLock(
+                PowerManager.PARTIAL_WAKE_LOCK, "LibraryUpdateService:WakeLock")
+        wakeLock.acquire()
    }

    /**
-     * Method called when the service is destroyed. It destroys the running subscription, resets
-     * the alarm and release the wake lock.
+     * Method called when the service is destroyed. It destroys subscriptions and releases the wake
+     * lock.
     */
    override fun onDestroy() {
        subscription?.unsubscribe()
-        destroyWakeLock()
+        if (wakeLock.isHeld) {
+            wakeLock.release()
+        }
        super.onDestroy()
    }

@ -174,6 +187,8 @@ class LibraryUpdateService : Service() {
     */
    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
        if (intent == null) return Service.START_NOT_STICKY
+        val target = intent.getSerializableExtra(KEY_TARGET) as? Target
+                ?: return Service.START_NOT_STICKY

        // Unsubscribe from any previous subscription if needed.
        subscription?.unsubscribe()
@ -181,18 +196,19 @@ class LibraryUpdateService : Service() {
        // Update favorite manga. Destroy service when completed or in case of an error.
        subscription = Observable
                .defer {
-                    val mangaList = getMangaToUpdate(intent)
+                    val mangaList = getMangaToUpdate(intent, target)

                    // Update either chapter list or manga details.
-                    if (!intent.getBooleanExtra(UPDATE_DETAILS, false))
-                        updateChapterList(mangaList)
-                    else
-                        updateDetails(mangaList)
+                    when (target) {
+                        Target.CHAPTERS -> updateChapterList(mangaList)
+                        Target.DETAILS -> updateDetails(mangaList)
+                        Target.TRACKING -> updateTrackings(mangaList)
+                    }
                }
                .subscribeOn(Schedulers.io())
                .subscribe({
                }, {
-                    showNotification(getString(R.string.notification_update_error), "")
+                    Timber.e(it)
                    stopSelf(startId)
                }, {
                    stopSelf(startId)
@ -205,15 +221,16 @@ class LibraryUpdateService : Service() {
     * Returns the list of manga to be updated.
     *
     * @param intent the update intent.
+     * @param target the target to update.
     * @return a list of manga to update
     */
-    fun getMangaToUpdate(intent: Intent): List<Manga> {
-        val categoryId = intent.getIntExtra(UPDATE_CATEGORY, -1)
+    fun getMangaToUpdate(intent: Intent, target: Target): List<Manga> {
+        val categoryId = intent.getIntExtra(KEY_CATEGORY, -1)

        var listToUpdate = if (categoryId != -1)
            db.getLibraryMangas().executeAsBlocking().filter { it.category == categoryId }
        else {
-            val categoriesToUpdate = preferences.libraryUpdateCategories().getOrDefault().map { it.toInt() }
+            val categoriesToUpdate = preferences.libraryUpdateCategories().getOrDefault().map(String::toInt)
            if (categoriesToUpdate.isNotEmpty())
                db.getLibraryMangas().executeAsBlocking()
                        .filter { it.category in categoriesToUpdate }
@ -222,7 +239,7 @@ class LibraryUpdateService : Service() {
                db.getLibraryMangas().executeAsBlocking().distinctBy { it.id }
        }

-        if (!intent.getBooleanExtra(UPDATE_DETAILS, false) && preferences.updateOnlyNonCompleted()) {
+        if (target == Target.CHAPTERS && preferences.updateOnlyNonCompleted()) {
            listToUpdate = listToUpdate.filter { it.status != SManga.COMPLETED }
        }

@ -255,7 +272,7 @@ class LibraryUpdateService : Service() {
        // Emit each manga and update it sequentially.
        return Observable.from(mangaToUpdate)
                // Notify manga that will update.
-                .doOnNext { showProgressNotification(it, count.andIncrement, mangaToUpdate.size, cancelPendingIntent) }
+                .doOnNext { showProgressNotification(it, count.andIncrement, mangaToUpdate.size) }
                // Update the chapters of the manga.
                .concatMap { manga ->
                    updateManga(manga)
@ -267,11 +284,11 @@ class LibraryUpdateService : Service() {
                            // Filter out mangas without new chapters (or failed).
                            .filter { pair -> pair.first.isNotEmpty() }
                            .doOnNext {
-                                if (downloadNew) {
-                                    if (categoriesToDownload.isEmpty() || manga.category in categoriesToDownload) {
-                                        downloadChapters(manga, it.first)
-                                        hasDownloads = true
-                                    }
+                                if (downloadNew && (categoriesToDownload.isEmpty() ||
+                                        manga.category in categoriesToDownload)) {
+
+                                    downloadChapters(manga, it.first)
+                                    hasDownloads = true
                                }
                            }
                            // Convert to the manga that contains new chapters.
@ -287,16 +304,18 @@ class LibraryUpdateService : Service() {
                }
                // Notify result of the overall update.
                .doOnCompleted {
-                    if (newUpdates.isEmpty()) {
-                        cancelNotification()
-                    } else {
-                        showResultNotification(newUpdates, failedUpdates)
-                        if (downloadNew) {
-                            if (hasDownloads) {
-                                DownloadService.start(this)
-                            }
+                    if (newUpdates.isNotEmpty()) {
+                        showResultNotification(newUpdates)
+                        if (downloadNew && hasDownloads) {
+                            DownloadService.start(this)
                        }
                    }
+
+                    if (failedUpdates.isNotEmpty()) {
+                        Timber.e("Failed updating: ${failedUpdates.map { it.title }}")
+                    }
+
+                    cancelProgressNotification()
                }
    }

@ -324,8 +343,6 @@ class LibraryUpdateService : Service() {
    /**
     * Method that updates the details of the given list of manga. It's called in a background
     * thread, so it's safe to do heavy operations or network calls here.
-     * For each manga it calls [updateManga] and updates the notification showing the current
-     * progress.
     *
     * @param mangaToUpdate the list to update
     * @return an observable delivering the progress of each update.
@ -337,7 +354,7 @@ class LibraryUpdateService : Service() {
        // Emit each manga and update it sequentially.
        return Observable.from(mangaToUpdate)
                // Notify manga that will update.
-                .doOnNext { showProgressNotification(it, count.andIncrement, mangaToUpdate.size, cancelPendingIntent) }
+                .doOnNext { showProgressNotification(it, count.andIncrement, mangaToUpdate.size) }
                // Update the details of the manga.
                .concatMap { manga ->
                    val source = sourceManager.get(manga.source) as? HttpSource
@ -352,71 +369,44 @@ class LibraryUpdateService : Service() {
                            .onErrorReturn { manga }
                }
                .doOnCompleted {
-                    cancelNotification()
+                    cancelProgressNotification()
                }
    }

    /**
-     * Returns the text that will be displayed in the notification when there are new chapters.
-     *
-     * @param updates a list of manga that contains new chapters.
-     * @param failedUpdates a list of manga that failed to update.
-     * @return the body of the notification to display.
+     * Method that updates the metadata of the connected tracking services. It's called in a
+     * background thread, so it's safe to do heavy operations or network calls here.
     */
-    private fun getUpdatedMangasBody(updates: List<Manga>, failedUpdates: List<Manga>): String {
-        return buildString {
-            if (updates.isEmpty()) {
-                append(getString(R.string.notification_no_new_chapters))
-                append("\n")
-            } else {
-                append(getString(R.string.notification_new_chapters))
-                for (manga in updates) {
-                    append("\n")
-                    append(manga.title.chop(45))
+    private fun updateTrackings(mangaToUpdate: List<Manga>): Observable<Manga> {
+        // Initialize the variables holding the progress of the updates.
+        var count = 0
+
+        val loggedServices = trackManager.services.filter { it.isLogged }
+
+        // Emit each manga and update it sequentially.
+        return Observable.from(mangaToUpdate)
+                // Notify manga that will update.
+                .doOnNext { showProgressNotification(it, count++, mangaToUpdate.size) }
+                // Update the tracking details.
+                .concatMap { manga ->
+                    val tracks = db.getTracks(manga).executeAsBlocking()
+
+                    Observable.from(tracks)
+                            .concatMap { track ->
+                                val service = trackManager.getService(track.sync_id)
+                                if (service != null && service in loggedServices) {
+                                    service.refresh(track)
+                                            .doOnNext { db.insertTrack(it).executeAsBlocking() }
+                                            .onErrorReturn { track }
+                                } else {
+                                    Observable.empty()
+                                }
+                            }
+                            .map { manga }
                }
-            }
-            if (!failedUpdates.isEmpty()) {
-                append("\n\n")
-                append(getString(R.string.notification_manga_update_failed))
-                for (manga in failedUpdates) {
-                    append("\n")
-                    append(manga.title.chop(45))
+                .doOnCompleted {
+                    cancelProgressNotification()
                }
-            }
-        }
-    }
-
-    /**
-     * Creates and acquires a wake lock until the library is updated.
-     */
-    private fun createAndAcquireWakeLock() {
-        wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).newWakeLock(
-                PowerManager.PARTIAL_WAKE_LOCK, "LibraryUpdateService:WakeLock")
-        wakeLock.acquire()
-    }
-
-    /**
-     * Releases the wake lock if it's held.
-     */
-    private fun destroyWakeLock() {
-        if (wakeLock.isHeld) {
-            wakeLock.release()
-        }
-    }
-
-    /**
-     * Shows the notification with the given title and body.
-     *
-     * @param title the title of the notification.
-     * @param body the body of the notification.
-     */
-    private fun showNotification(title: String, body: String) {
-        notificationManager.notify(notificationId, notification {
-            setSmallIcon(R.drawable.ic_refresh_white_24dp_img)
-            setLargeIcon(notificationBitmap)
-            setContentTitle(title)
-            setContentText(body)
-        })
    }

    /**
@ -426,52 +416,67 @@ class LibraryUpdateService : Service() {
     * @param current the current progress.
     * @param total the total progress.
     */
-    private fun showProgressNotification(manga: Manga, current: Int, total: Int, cancelIntent: PendingIntent) {
-        notificationManager.notify(notificationId, notification {
-            setSmallIcon(R.drawable.ic_refresh_white_24dp_img)
-            setLargeIcon(notificationBitmap)
-            setContentTitle(manga.title)
-            setProgress(total, current, false)
-            setOngoing(true)
-            addAction(R.drawable.ic_clear_grey_24dp_img, getString(android.R.string.cancel), cancelIntent)
-        })
+    private fun showProgressNotification(manga: Manga, current: Int, total: Int) {
+        notificationManager.notify(Constants.NOTIFICATION_LIBRARY_PROGRESS_ID, progressNotification
+                .setContentTitle(manga.title)
+                .setProgress(total, current, false)
+                .build())
    }

-
    /**
     * Shows the notification containing the result of the update done by the service.
     *
     * @param updates a list of manga with new updates.
-     * @param failed a list of manga that failed to update.
     */
-    private fun showResultNotification(updates: List<Manga>, failed: List<Manga>) {
-        val title = getString(R.string.notification_update_completed)
-        val body = getUpdatedMangasBody(updates, failed)
+    private fun showResultNotification(updates: List<Manga>) {
+        val newUpdates = updates.map { it.title.chop(45) }.toMutableSet()

-        notificationManager.notify(notificationId, notification {
-            setSmallIcon(R.drawable.ic_refresh_white_24dp_img)
+        // Append new chapters from a previous, existing notification
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            val previousNotification = notificationManager.activeNotifications
+                    .find { it.id == Constants.NOTIFICATION_LIBRARY_RESULT_ID }
+
+            if (previousNotification != null) {
+                val oldUpdates = previousNotification.notification.extras
+                        .getString(Notification.EXTRA_BIG_TEXT)
+
+                if (!oldUpdates.isNullOrEmpty()) {
+                    newUpdates += oldUpdates.split("\n")
+                }
+            }
+        }
+
+        notificationManager.notify(Constants.NOTIFICATION_LIBRARY_RESULT_ID, notification {
+            setSmallIcon(R.drawable.ic_book_white_24dp)
            setLargeIcon(notificationBitmap)
-            setContentTitle(title)
-            setStyle(NotificationCompat.BigTextStyle().bigText(body))
-            setContentIntent(notificationIntent)
+            setContentTitle(getString(R.string.notification_new_chapters))
+            if (newUpdates.size > 1) {
+                setContentText(getString(R.string.notification_new_chapters_text, newUpdates.size))
+                setStyle(NotificationCompat.BigTextStyle().bigText(newUpdates.joinToString("\n")))
+            } else {
+                setContentText(newUpdates.first())
+            }
+            priority = NotificationCompat.PRIORITY_HIGH
+            setContentIntent(getNotificationIntent())
            setAutoCancel(true)
        })
    }

    /**
-     * Cancels the notification.
+     * Cancels the progress notification.
     */
-    private fun cancelNotification() {
-        notificationManager.cancel(notificationId)
+    private fun cancelProgressNotification() {
+        notificationManager.cancel(Constants.NOTIFICATION_LIBRARY_PROGRESS_ID)
    }

    /**
-     * Property that returns an intent to open the main activity.
+     * Returns an intent to open the main activity.
     */
-    private val notificationIntent: PendingIntent
-        get() {
-            val intent = Intent(this, MainActivity::class.java)
-            intent.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
-            return PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)
-        }
+    private fun getNotificationIntent(): PendingIntent {
+        val intent = Intent(this, MainActivity::class.java)
+        intent.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
+        intent.action = MainActivity.SHORTCUT_RECENTLY_UPDATED
+        return PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)
+    }
+
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationHandler.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationHandler.kt
@ -3,9 +3,7 @@ package eu.kanade.tachiyomi.data.notification
 import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
-import android.support.v4.content.FileProvider
-import eu.kanade.tachiyomi.BuildConfig
-import eu.kanade.tachiyomi.ui.download.DownloadActivity
+import eu.kanade.tachiyomi.ui.main.MainActivity
 import eu.kanade.tachiyomi.util.getUriCompat
 import java.io.File

@ -19,8 +17,9 @@ object NotificationHandler {
     * @param context context of application
     */
    internal fun openDownloadManagerPendingActivity(context: Context): PendingIntent {
-        val intent = Intent(context, DownloadActivity::class.java).apply {
+        val intent = Intent(context, MainActivity::class.java).apply {
            flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_REORDER_TO_FRONT
+            action = MainActivity.SHORTCUT_DOWNLOADS
        }
        return PendingIntent.getActivity(context, 0, intent, 0)
    }
@ -33,7 +32,7 @@ object NotificationHandler {
     */
    internal fun openImagePendingActivity(context: Context, file: File): PendingIntent {
        val intent = Intent(Intent.ACTION_VIEW).apply {
-            val uri = FileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID + ".provider", file)
+            val uri = file.getUriCompat(context)
            setDataAndType(uri, "image/*")
            flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_GRANT_READ_URI_PERMISSION
        }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationReceiver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationReceiver.kt
@ -14,7 +14,10 @@ import eu.kanade.tachiyomi.data.download.DownloadManager
 import eu.kanade.tachiyomi.data.download.DownloadService
 import eu.kanade.tachiyomi.data.library.LibraryUpdateService
 import eu.kanade.tachiyomi.ui.reader.ReaderActivity
-import eu.kanade.tachiyomi.util.*
+import eu.kanade.tachiyomi.util.DiskUtil
+import eu.kanade.tachiyomi.util.getUriCompat
+import eu.kanade.tachiyomi.util.notificationManager
+import eu.kanade.tachiyomi.util.toast
 import uy.kohesive.injekt.injectLazy
 import java.io.File
 import eu.kanade.tachiyomi.BuildConfig.APPLICATION_ID as ID
@ -45,7 +48,7 @@ class NotificationReceiver : BroadcastReceiver() {
            ACTION_DELETE_IMAGE -> deleteImage(context, intent.getStringExtra(EXTRA_FILE_LOCATION),
                    intent.getIntExtra(EXTRA_NOTIFICATION_ID, -1))
            // Cancel library update and dismiss notification
-            ACTION_CANCEL_LIBRARY_UPDATE -> cancelLibraryUpdate(context, Constants.NOTIFICATION_LIBRARY_ID)
+            ACTION_CANCEL_LIBRARY_UPDATE -> cancelLibraryUpdate(context, Constants.NOTIFICATION_LIBRARY_PROGRESS_ID)
            // Open reader activity
            ACTION_OPEN_CHAPTER -> {
                openChapter(context, intent.getLongExtra(EXTRA_MANGA_ID, -1),
@ -118,7 +121,7 @@ class NotificationReceiver : BroadcastReceiver() {

        // Delete file
        val file = File(path)
-        file.deleteIfExists()
+        file.delete()

        DiskUtil.scanMedia(context, file)
    }
@ -274,4 +277,4 @@ class NotificationReceiver : BroadcastReceiver() {
            return PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)
        }
    }
-}
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt
@ -1,112 +1,116 @@
-package eu.kanade.tachiyomi.data.preference
-
-import android.content.Context
-import eu.kanade.tachiyomi.R
-
-/**
- * This class stores the keys for the preferences in the application. Most of them are defined
- * in the file "keys.xml". By using this class we can define preferences in one place and get them
- * referenced here.
- */
-@Suppress("HasPlatformType")
-class PreferenceKeys(context: Context) {
-
-    val theme = context.getString(R.string.pref_theme_key)
-
-    val rotation = context.getString(R.string.pref_rotation_type_key)
-
-    val enableTransitions = context.getString(R.string.pref_enable_transitions_key)
-
-    val showPageNumber = context.getString(R.string.pref_show_page_number_key)
-
-    val fullscreen = context.getString(R.string.pref_fullscreen_key)
-
-    val keepScreenOn = context.getString(R.string.pref_keep_screen_on_key)
-
-    val customBrightness = context.getString(R.string.pref_custom_brightness_key)
-
-    val customBrightnessValue = context.getString(R.string.pref_custom_brightness_value_key)
-
-    val colorFilter = context.getString(R.string.pref_color_filter_key)
-
-    val colorFilterValue = context.getString(R.string.pref_color_filter_value_key)
-
-    val defaultViewer = context.getString(R.string.pref_default_viewer_key)
-
-    val imageScaleType = context.getString(R.string.pref_image_scale_type_key)
-
-    val imageDecoder = context.getString(R.string.pref_image_decoder_key)
-
-    val zoomStart = context.getString(R.string.pref_zoom_start_key)
-
-    val readerTheme = context.getString(R.string.pref_reader_theme_key)
-
-    val cropBorders = context.getString(R.string.pref_crop_borders_key)
-
-    val readWithTapping = context.getString(R.string.pref_read_with_tapping_key)
-
-    val readWithVolumeKeys = context.getString(R.string.pref_read_with_volume_keys_key)
-
-    val portraitColumns = context.getString(R.string.pref_library_columns_portrait_key)
-
-    val landscapeColumns = context.getString(R.string.pref_library_columns_landscape_key)
-
-    val updateOnlyNonCompleted = context.getString(R.string.pref_update_only_non_completed_key)
-
-    val autoUpdateTrack = context.getString(R.string.pref_auto_update_manga_sync_key)
-
-    val askUpdateTrack = context.getString(R.string.pref_ask_update_manga_sync_key)
-
-    val lastUsedCatalogueSource = context.getString(R.string.pref_last_catalogue_source_key)
-
-    val lastUsedCategory = context.getString(R.string.pref_last_used_category_key)
-
-    val catalogueAsList = context.getString(R.string.pref_display_catalogue_as_list)
-
-    val enabledLanguages = context.getString(R.string.pref_source_languages)
-
-    val downloadsDirectory = context.getString(R.string.pref_download_directory_key)
-
-    val downloadThreads = context.getString(R.string.pref_download_slots_key)
-
-    val downloadOnlyOverWifi = context.getString(R.string.pref_download_only_over_wifi_key)
-
-    val removeAfterReadSlots = context.getString(R.string.pref_remove_after_read_slots_key)
-
-    val removeAfterMarkedAsRead = context.getString(R.string.pref_remove_after_marked_as_read_key)
-
-    val libraryUpdateInterval = context.getString(R.string.pref_library_update_interval_key)
-
-    val libraryUpdateRestriction = context.getString(R.string.pref_library_update_restriction_key)
-
-    val libraryUpdateCategories = context.getString(R.string.pref_library_update_categories_key)
-
-    val filterDownloaded = context.getString(R.string.pref_filter_downloaded_key)
-
-    val filterUnread = context.getString(R.string.pref_filter_unread_key)
-
-    val librarySortingMode = context.getString(R.string.pref_library_sorting_mode_key)
-
-    val automaticUpdates = context.getString(R.string.pref_enable_automatic_updates_key)
-
-    val startScreen = context.getString(R.string.pref_start_screen_key)
-
-    val downloadNew = context.getString(R.string.pref_download_new_key)
-
-    val downloadNewCategories = context.getString(R.string.pref_download_new_categories_key)
-
-    fun sourceUsername(sourceId: Long) = "pref_source_username_$sourceId"
-
-    fun sourcePassword(sourceId: Long) = "pref_source_password_$sourceId"
-
-    fun trackUsername(syncId: Int) = "pref_mangasync_username_$syncId"
-
-    fun trackPassword(syncId: Int) = "pref_mangasync_password_$syncId"
-
-    fun trackToken(syncId: Int) = "track_token_$syncId"
-
-    val libraryAsList = context.getString(R.string.pref_display_library_as_list)
-
-    val lang = context.getString(R.string.pref_language_key)
-
-}
+package eu.kanade.tachiyomi.data.preference
+
+/**
+ * This class stores the keys for the preferences in the application.
+ */
+object PreferenceKeys {
+
+    const val theme = "pref_theme_key"
+
+    const val rotation = "pref_rotation_type_key"
+
+    const val enableTransitions = "pref_enable_transitions_key"
+
+    const val showPageNumber = "pref_show_page_number_key"
+
+    const val fullscreen = "fullscreen"
+
+    const val keepScreenOn = "pref_keep_screen_on_key"
+
+    const val customBrightness = "pref_custom_brightness_key"
+
+    const val customBrightnessValue = "custom_brightness_value"
+
+    const val colorFilter = "pref_color_filter_key"
+
+    const val colorFilterValue = "color_filter_value"
+
+    const val defaultViewer = "pref_default_viewer_key"
+
+    const val imageScaleType = "pref_image_scale_type_key"
+
+    const val imageDecoder = "image_decoder"
+
+    const val zoomStart = "pref_zoom_start_key"
+
+    const val readerTheme = "pref_reader_theme_key"
+
+    const val cropBorders = "crop_borders"
+
+    const val readWithTapping = "reader_tap"
+
+    const val readWithVolumeKeys = "reader_volume_keys"
+
+    const val readWithVolumeKeysInverted = "reader_volume_keys_inverted"
+
+    const val portraitColumns = "pref_library_columns_portrait_key"
+
+    const val landscapeColumns = "pref_library_columns_landscape_key"
+
+    const val updateOnlyNonCompleted = "pref_update_only_non_completed_key"
+
+    const val autoUpdateTrack = "pref_auto_update_manga_sync_key"
+
+    const val askUpdateTrack = "pref_ask_update_manga_sync_key"
+
+    const val lastUsedCatalogueSource = "last_catalogue_source"
+
+    const val lastUsedCategory = "last_used_category"
+
+    const val catalogueAsList = "pref_display_catalogue_as_list"
+
+    const val enabledLanguages = "source_languages"
+
+    const val backupDirectory = "backup_directory"
+
+    const val downloadsDirectory = "download_directory"
+
+    const val downloadThreads = "pref_download_slots_key"
+
+    const val downloadOnlyOverWifi = "pref_download_only_over_wifi_key"
+
+    const val numberOfBackups = "backup_slots"
+
+    const val backupInterval = "backup_interval"
+
+    const val removeAfterReadSlots = "remove_after_read_slots"
+
+    const val removeAfterMarkedAsRead = "pref_remove_after_marked_as_read_key"
+
+    const val libraryUpdateInterval = "pref_library_update_interval_key"
+
+    const val libraryUpdateRestriction = "library_update_restriction"
+
+    const val libraryUpdateCategories = "library_update_categories"
+
+    const val filterDownloaded = "pref_filter_downloaded_key"
+
+    const val filterUnread = "pref_filter_unread_key"
+
+    const val librarySortingMode = "library_sorting_mode"
+
+    const val automaticUpdates = "automatic_updates"
+
+    const val startScreen = "start_screen"
+
+    const val downloadNew = "download_new"
+
+    const val downloadNewCategories = "download_new_categories"
+
+    const val libraryAsList = "pref_display_library_as_list"
+
+    const val lang = "app_language"
+
+    const val defaultCategory = "default_category"
+
+    fun sourceUsername(sourceId: Long) = "pref_source_username_$sourceId"
+
+    fun sourcePassword(sourceId: Long) = "pref_source_password_$sourceId"
+
+    fun trackUsername(syncId: Int) = "pref_mangasync_username_$syncId"
+
+    fun trackPassword(syncId: Int) = "pref_mangasync_password_$syncId"
+
+    fun trackToken(syncId: Int) = "track_token_$syncId"
+
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt
@ -10,6 +10,7 @@ import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.track.TrackService
 import eu.kanade.tachiyomi.source.Source
 import java.io.File
+import eu.kanade.tachiyomi.data.preference.PreferenceKeys as Keys

 fun <T> Preference<T>.getOrDefault(): T = get() ?: defaultValue()!!

@ -17,8 +18,6 @@ fun Preference<Boolean>.invert(): Boolean = getOrDefault().let { set(!it); !it }

 class PreferencesHelper(val context: Context) {

-    val keys = PreferenceKeys(context)
-
    private val prefs = PreferenceManager.getDefaultSharedPreferences(context)
    private val rxPrefs = RxSharedPreferences.create(prefs)

@ -26,126 +25,140 @@ class PreferencesHelper(val context: Context) {
            File(Environment.getExternalStorageDirectory().absolutePath + File.separator +
                    context.getString(R.string.app_name), "downloads"))

-    fun startScreen() = prefs.getInt(keys.startScreen, 1)
+    private val defaultBackupDir = Uri.fromFile(
+            File(Environment.getExternalStorageDirectory().absolutePath + File.separator +
+                    context.getString(R.string.app_name), "backup"))
+
+    fun startScreen() = prefs.getInt(Keys.startScreen, 1)

    fun clear() = prefs.edit().clear().apply()

-    fun theme() = prefs.getInt(keys.theme, 1)
+    fun theme() = prefs.getInt(Keys.theme, 1)

-    fun rotation() = rxPrefs.getInteger(keys.rotation, 1)
+    fun rotation() = rxPrefs.getInteger(Keys.rotation, 1)

-    fun pageTransitions() = rxPrefs.getBoolean(keys.enableTransitions, true)
+    fun pageTransitions() = rxPrefs.getBoolean(Keys.enableTransitions, true)

-    fun showPageNumber() = rxPrefs.getBoolean(keys.showPageNumber, true)
+    fun showPageNumber() = rxPrefs.getBoolean(Keys.showPageNumber, true)

-    fun fullscreen() = rxPrefs.getBoolean(keys.fullscreen, true)
+    fun fullscreen() = rxPrefs.getBoolean(Keys.fullscreen, true)

-    fun keepScreenOn() = rxPrefs.getBoolean(keys.keepScreenOn, true)
+    fun keepScreenOn() = rxPrefs.getBoolean(Keys.keepScreenOn, true)

-    fun customBrightness() = rxPrefs.getBoolean(keys.customBrightness, false)
+    fun customBrightness() = rxPrefs.getBoolean(Keys.customBrightness, false)

-    fun customBrightnessValue() = rxPrefs.getInteger(keys.customBrightnessValue, 0)
+    fun customBrightnessValue() = rxPrefs.getInteger(Keys.customBrightnessValue, 0)

-    fun colorFilter() = rxPrefs.getBoolean(keys.colorFilter, false)
+    fun colorFilter() = rxPrefs.getBoolean(Keys.colorFilter, false)

-    fun colorFilterValue() = rxPrefs.getInteger(keys.colorFilterValue, 0)
+    fun colorFilterValue() = rxPrefs.getInteger(Keys.colorFilterValue, 0)

-    fun defaultViewer() = prefs.getInt(keys.defaultViewer, 1)
+    fun defaultViewer() = prefs.getInt(Keys.defaultViewer, 1)

-    fun imageScaleType() = rxPrefs.getInteger(keys.imageScaleType, 1)
+    fun imageScaleType() = rxPrefs.getInteger(Keys.imageScaleType, 1)

-    fun imageDecoder() = rxPrefs.getInteger(keys.imageDecoder, 0)
+    fun imageDecoder() = rxPrefs.getInteger(Keys.imageDecoder, 0)

-    fun zoomStart() = rxPrefs.getInteger(keys.zoomStart, 1)
+    fun zoomStart() = rxPrefs.getInteger(Keys.zoomStart, 1)

-    fun readerTheme() = rxPrefs.getInteger(keys.readerTheme, 0)
+    fun readerTheme() = rxPrefs.getInteger(Keys.readerTheme, 0)

-    fun cropBorders() = rxPrefs.getBoolean(keys.cropBorders, false)
+    fun cropBorders() = rxPrefs.getBoolean(Keys.cropBorders, false)

-    fun readWithTapping() = rxPrefs.getBoolean(keys.readWithTapping, true)
+    fun readWithTapping() = rxPrefs.getBoolean(Keys.readWithTapping, true)

-    fun readWithVolumeKeys() = rxPrefs.getBoolean(keys.readWithVolumeKeys, false)
+    fun readWithVolumeKeys() = rxPrefs.getBoolean(Keys.readWithVolumeKeys, false)

-    fun portraitColumns() = rxPrefs.getInteger(keys.portraitColumns, 0)
+    fun readWithVolumeKeysInverted() = rxPrefs.getBoolean(Keys.readWithVolumeKeysInverted, false)

-    fun landscapeColumns() = rxPrefs.getInteger(keys.landscapeColumns, 0)
+    fun portraitColumns() = rxPrefs.getInteger(Keys.portraitColumns, 0)

-    fun updateOnlyNonCompleted() = prefs.getBoolean(keys.updateOnlyNonCompleted, false)
+    fun landscapeColumns() = rxPrefs.getInteger(Keys.landscapeColumns, 0)

-    fun autoUpdateTrack() = prefs.getBoolean(keys.autoUpdateTrack, true)
+    fun updateOnlyNonCompleted() = prefs.getBoolean(Keys.updateOnlyNonCompleted, false)

-    fun askUpdateTrack() = prefs.getBoolean(keys.askUpdateTrack, false)
+    fun autoUpdateTrack() = prefs.getBoolean(Keys.autoUpdateTrack, true)

-    fun lastUsedCatalogueSource() = rxPrefs.getLong(keys.lastUsedCatalogueSource, -1)
+    fun askUpdateTrack() = prefs.getBoolean(Keys.askUpdateTrack, false)

-    fun lastUsedCategory() = rxPrefs.getInteger(keys.lastUsedCategory, 0)
+    fun lastUsedCatalogueSource() = rxPrefs.getLong(Keys.lastUsedCatalogueSource, -1)
+
+    fun lastUsedCategory() = rxPrefs.getInteger(Keys.lastUsedCategory, 0)

    fun lastVersionCode() = rxPrefs.getInteger("last_version_code", 0)

-    fun catalogueAsList() = rxPrefs.getBoolean(keys.catalogueAsList, false)
+    fun catalogueAsList() = rxPrefs.getBoolean(Keys.catalogueAsList, false)

-    fun enabledLanguages() = rxPrefs.getStringSet(keys.enabledLanguages, setOf("en"))
+    fun enabledLanguages() = rxPrefs.getStringSet(Keys.enabledLanguages, setOf("en"))

-    fun sourceUsername(source: Source) = prefs.getString(keys.sourceUsername(source.id), "")
+    fun sourceUsername(source: Source) = prefs.getString(Keys.sourceUsername(source.id), "")

-    fun sourcePassword(source: Source) = prefs.getString(keys.sourcePassword(source.id), "")
+    fun sourcePassword(source: Source) = prefs.getString(Keys.sourcePassword(source.id), "")

    fun setSourceCredentials(source: Source, username: String, password: String) {
        prefs.edit()
-                .putString(keys.sourceUsername(source.id), username)
-                .putString(keys.sourcePassword(source.id), password)
+                .putString(Keys.sourceUsername(source.id), username)
+                .putString(Keys.sourcePassword(source.id), password)
                .apply()
    }

-    fun trackUsername(sync: TrackService) = prefs.getString(keys.trackUsername(sync.id), "")
+    fun trackUsername(sync: TrackService) = prefs.getString(Keys.trackUsername(sync.id), "")

-    fun trackPassword(sync: TrackService) = prefs.getString(keys.trackPassword(sync.id), "")
+    fun trackPassword(sync: TrackService) = prefs.getString(Keys.trackPassword(sync.id), "")

    fun setTrackCredentials(sync: TrackService, username: String, password: String) {
        prefs.edit()
-                .putString(keys.trackUsername(sync.id), username)
-                .putString(keys.trackPassword(sync.id), password)
+                .putString(Keys.trackUsername(sync.id), username)
+                .putString(Keys.trackPassword(sync.id), password)
                .apply()
    }

-    fun trackToken(sync: TrackService) = rxPrefs.getString(keys.trackToken(sync.id), "")
+    fun trackToken(sync: TrackService) = rxPrefs.getString(Keys.trackToken(sync.id), "")

    fun anilistScoreType() = rxPrefs.getInteger("anilist_score_type", 0)

-    fun downloadsDirectory() = rxPrefs.getString(keys.downloadsDirectory, defaultDownloadsDir.toString())
+    fun backupsDirectory() = rxPrefs.getString(Keys.backupDirectory, defaultBackupDir.toString())

-    fun downloadThreads() = rxPrefs.getInteger(keys.downloadThreads, 1)
+    fun downloadsDirectory() = rxPrefs.getString(Keys.downloadsDirectory, defaultDownloadsDir.toString())

-    fun downloadOnlyOverWifi() = prefs.getBoolean(keys.downloadOnlyOverWifi, true)
+    fun downloadThreads() = rxPrefs.getInteger(Keys.downloadThreads, 1)

-    fun removeAfterReadSlots() = prefs.getInt(keys.removeAfterReadSlots, -1)
+    fun downloadOnlyOverWifi() = prefs.getBoolean(Keys.downloadOnlyOverWifi, true)

-    fun removeAfterMarkedAsRead() = prefs.getBoolean(keys.removeAfterMarkedAsRead, false)
+    fun numberOfBackups() = rxPrefs.getInteger(Keys.numberOfBackups, 1)

-    fun libraryUpdateInterval() = rxPrefs.getInteger(keys.libraryUpdateInterval, 0)
+    fun backupInterval() = rxPrefs.getInteger(Keys.backupInterval, 0)

-    fun libraryUpdateRestriction() = prefs.getStringSet(keys.libraryUpdateRestriction, emptySet())
+    fun removeAfterReadSlots() = prefs.getInt(Keys.removeAfterReadSlots, -1)

-    fun libraryUpdateCategories() = rxPrefs.getStringSet(keys.libraryUpdateCategories, emptySet())
+    fun removeAfterMarkedAsRead() = prefs.getBoolean(Keys.removeAfterMarkedAsRead, false)

-    fun libraryAsList() = rxPrefs.getBoolean(keys.libraryAsList, false)
+    fun libraryUpdateInterval() = rxPrefs.getInteger(Keys.libraryUpdateInterval, 0)

-    fun filterDownloaded() = rxPrefs.getBoolean(keys.filterDownloaded, false)
+    fun libraryUpdateRestriction() = prefs.getStringSet(Keys.libraryUpdateRestriction, emptySet())

-    fun filterUnread() = rxPrefs.getBoolean(keys.filterUnread, false)
+    fun libraryUpdateCategories() = rxPrefs.getStringSet(Keys.libraryUpdateCategories, emptySet())

-    fun librarySortingMode() = rxPrefs.getInteger(keys.librarySortingMode, 0)
+    fun libraryAsList() = rxPrefs.getBoolean(Keys.libraryAsList, false)
+
+    fun filterDownloaded() = rxPrefs.getBoolean(Keys.filterDownloaded, false)
+
+    fun filterUnread() = rxPrefs.getBoolean(Keys.filterUnread, false)
+
+    fun librarySortingMode() = rxPrefs.getInteger(Keys.librarySortingMode, 0)

    fun librarySortingAscending() = rxPrefs.getBoolean("library_sorting_ascending", true)

-    fun automaticUpdates() = prefs.getBoolean(keys.automaticUpdates, false)
+    fun automaticUpdates() = prefs.getBoolean(Keys.automaticUpdates, false)

    fun hiddenCatalogues() = rxPrefs.getStringSet("hidden_catalogues", emptySet())

-    fun downloadNew() = rxPrefs.getBoolean(keys.downloadNew, false)
+    fun downloadNew() = rxPrefs.getBoolean(Keys.downloadNew, false)

-    fun downloadNewCategories() = rxPrefs.getStringSet(keys.downloadNewCategories, emptySet())
+    fun downloadNewCategories() = rxPrefs.getStringSet(Keys.downloadNewCategories, emptySet())

-    fun lang() = prefs.getString(keys.lang, "")
+    fun lang() = prefs.getString(Keys.lang, "")
+
+    fun defaultCategory() = prefs.getInt(Keys.defaultCategory, -1)

 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/track/anilist/AnilistApi.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/track/anilist/AnilistApi.kt
@ -26,7 +26,7 @@ class AnilistApi(val client: OkHttpClient, interceptor: AnilistInterceptor) {
    fun addLibManga(track: Track): Observable<Track> {
        return rest.addLibManga(track.remote_id, track.last_chapter_read, track.toAnilistStatus())
                .map { response ->
-                    response.body().close()
+                    response.body()?.close()
                    if (!response.isSuccessful) {
                        throw Exception("Could not add manga")
                    }
@ -38,7 +38,7 @@ class AnilistApi(val client: OkHttpClient, interceptor: AnilistInterceptor) {
        return rest.updateLibManga(track.remote_id, track.last_chapter_read, track.toAnilistStatus(),
                track.toAnilistScore())
                .map { response ->
-                    response.body().close()
+                    response.body()?.close()
                    if (!response.isSuccessful) {
                        throw Exception("Could not update manga")
                    }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/track/anilist/AnilistInterceptor.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/track/anilist/AnilistInterceptor.kt
@ -28,7 +28,7 @@ class AnilistInterceptor(private var refreshToken: String?) : Interceptor {
        if (oauth == null || oauth!!.isExpired()) {
            val response = chain.proceed(AnilistApi.refreshTokenRequest(refreshToken!!))
            oauth = if (response.isSuccessful) {
-                Gson().fromJson(response.body().string(), OAuth::class.java)
+                Gson().fromJson(response.body()!!.string(), OAuth::class.java)
            } else {
                response.close()
                null
--- a/app/src/main/java/eu/kanade/tachiyomi/data/track/kitsu/Kitsu.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/track/kitsu/Kitsu.kt
@ -9,6 +9,7 @@ import eu.kanade.tachiyomi.data.track.TrackService
 import rx.Completable
 import rx.Observable
 import uy.kohesive.injekt.injectLazy
+import java.text.DecimalFormat

 class Kitsu(private val context: Context, id: Int) : TrackService(id) {

@ -55,11 +56,17 @@ class Kitsu(private val context: Context, id: Int) : TrackService(id) {
    }

    override fun getScoreList(): List<String> {
-        return IntRange(0, 10).map { (it.toFloat() / 2).toString() }
+        val df = DecimalFormat("0.#")
+        return listOf("0") + IntRange(2, 20).map { df.format(it / 2f) }
+    }
+
+    override fun indexToScore(index: Int): Float {
+        return if (index > 0) (index + 1) / 2f else 0f
    }

    override fun displayScore(track: Track): String {
-        return track.toKitsuScore()
+        val df = DecimalFormat("0.#")
+        return df.format(track.score)
    }

    override fun add(track: Track): Observable<Track> {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/track/kitsu/KitsuApi.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/track/kitsu/KitsuApi.kt
@ -1,6 +1,7 @@
 package eu.kanade.tachiyomi.data.track.kitsu

 import com.github.salomonbrys.kotson.*
+import com.google.gson.GsonBuilder
 import com.google.gson.JsonObject
 import eu.kanade.tachiyomi.data.database.models.Track
 import eu.kanade.tachiyomi.network.POST
@ -17,7 +18,7 @@ class KitsuApi(private val client: OkHttpClient, interceptor: KitsuInterceptor)
    private val rest = Retrofit.Builder()
            .baseUrl(baseUrl)
            .client(client.newBuilder().addInterceptor(interceptor).build())
-            .addConverterFactory(GsonConverterFactory.create())
+            .addConverterFactory(GsonConverterFactory.create(GsonBuilder().serializeNulls().create()))
            .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
            .build()
            .create(KitsuApi.Rest::class.java)
@ -65,7 +66,7 @@ class KitsuApi(private val client: OkHttpClient, interceptor: KitsuInterceptor)
                "attributes" to jsonObject(
                    "status" to track.toKitsuStatus(),
                    "progress" to track.last_chapter_read,
-                    "rating" to track.toKitsuScore()
+                    "ratingTwenty" to track.toKitsuScore()
                )
            )
            // @formatter:on
@ -148,9 +149,8 @@ class KitsuApi(private val client: OkHttpClient, interceptor: KitsuInterceptor)

        @GET("library-entries")
        fun findLibManga(
-                @Query("filter[media_id]", encoded = true) remoteId: Int,
+                @Query("filter[manga_id]", encoded = true) remoteId: Int,
                @Query("filter[user_id]", encoded = true) userId: String,
-                @Query("page[limit]", encoded = true) limit: Int = 10000,
                @Query("include") includes: String = "manga"
        ): Observable<JsonObject>

--- a/app/src/main/java/eu/kanade/tachiyomi/data/track/kitsu/KitsuInterceptor.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/track/kitsu/KitsuInterceptor.kt
@ -22,7 +22,7 @@ class KitsuInterceptor(val kitsu: Kitsu, val gson: Gson) : Interceptor {
        if (currAuth.isExpired()) {
            val response = chain.proceed(KitsuApi.refreshTokenRequest(refreshToken))
            if (response.isSuccessful) {
-                newAuth(gson.fromJson(response.body().string(), OAuth::class.java))
+                newAuth(gson.fromJson(response.body()!!.string(), OAuth::class.java))
            } else {
                response.close()
            }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/track/kitsu/KitsuModels.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/track/kitsu/KitsuModels.kt
@ -23,13 +23,13 @@ open class KitsuManga(obj: JsonObject) {
 class KitsuLibManga(obj: JsonObject, manga: JsonObject) : KitsuManga(manga) {
    val remoteId by obj.byInt("id")
    val status by obj["attributes"].byString
-    val rating = obj["attributes"].obj.get("rating").nullString
+    val ratingTwenty = obj["attributes"].obj.get("ratingTwenty").nullString
    val progress by obj["attributes"].byInt

    override fun toTrack() = super.toTrack().apply {
        remote_id = remoteId
        status = toTrackStatus()
-        score = rating?.let { it.toFloat() * 2 } ?: 0f
+        score = ratingTwenty?.let { it.toInt() / 2f } ?: 0f
        last_chapter_read = progress
    }

@ -53,6 +53,6 @@ fun Track.toKitsuStatus() = when (status) {
    else -> throw Exception("Unknown status")
 }

-fun Track.toKitsuScore(): String {
-    return if (score > 0) (score / 2).toString() else ""
+fun Track.toKitsuScore(): String? {
+    return if (score > 0) (score * 2).toInt().toString() else null
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/track/myanimelist/MyanimelistApi.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/track/myanimelist/MyanimelistApi.kt
@ -46,7 +46,7 @@ class MyanimelistApi(private val client: OkHttpClient, username: String, passwor
        } else {
            client.newCall(GET(getSearchUrl(query), headers))
                    .asObservable()
-                    .map { Jsoup.parse(it.body().string()) }
+                    .map { Jsoup.parse(it.body()!!.string()) }
                    .flatMap { Observable.from(it.select("entry")) }
                    .filter { it.select("type").text() != "Novel" }
                    .map {
@ -64,7 +64,7 @@ class MyanimelistApi(private val client: OkHttpClient, username: String, passwor
        return client
                .newCall(GET(getListUrl(username), headers))
                .asObservable()
-                .map { Jsoup.parse(it.body().string()) }
+                .map { Jsoup.parse(it.body()!!.string()) }
                .flatMap { Observable.from(it.select("manga")) }
                .map {
                    Track.create(TrackManager.MYANIMELIST).apply {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdateDownloaderService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdateDownloaderService.kt
@ -86,7 +86,7 @@ class UpdateDownloaderService : IntentService(UpdateDownloaderService::class.jav
            val apkFile = File(externalCacheDir, "update.apk")

            if (response.isSuccessful) {
-                response.body().source().saveTo(apkFile)
+                response.body()!!.source().saveTo(apkFile)
            } else {
                response.close()
                throw Exception("Unsuccessful response")
--- a/app/src/main/java/eu/kanade/tachiyomi/network/CloudflareInterceptor.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/network/CloudflareInterceptor.kt
@ -8,13 +8,10 @@ import okhttp3.Response

 class CloudflareInterceptor : Interceptor {

-    //language=RegExp
    private val operationPattern = Regex("""setTimeout\(function\(\)\{\s+(var (?:\w,)+f.+?\r?\n[\s\S]+?a\.value =.+?)\r?\n""")
    
-    //language=RegExp
    private val passPattern = Regex("""name="pass" value="(.+?)"""")

-    //language=RegExp
    private val challengePattern = Regex("""name="jschl_vc" value="(\w+)"""")

    @Synchronized
@ -34,7 +31,7 @@ class CloudflareInterceptor : Interceptor {
            val originalRequest = response.request()
            val url = originalRequest.url()
            val domain = url.host()
-            val content = response.body().string()
+            val content = response.body()!!.string()

            // CloudFlare requires waiting 4 seconds before resolving the challenge
            Thread.sleep(4000)
@ -48,9 +45,7 @@ class CloudflareInterceptor : Interceptor {
            }

            val js = operation
-                    //language=RegExp
                    .replace(Regex("""a\.value =(.+?) \+.*"""), "$1")
-                    //language=RegExp
                    .replace(Regex("""\s{3,}[a-z](?: = |\.).+"""), "")
                    .replace("\n", "")

@ -58,7 +53,7 @@ class CloudflareInterceptor : Interceptor {

            val answer = "${result + domain.length}"

-            val cloudflareUrl = HttpUrl.parse("${url.scheme()}://$domain/cdn-cgi/l/chk_jschl")
+            val cloudflareUrl = HttpUrl.parse("${url.scheme()}://$domain/cdn-cgi/l/chk_jschl")!!
                    .newBuilder()
                    .addQueryParameter("jschl_vc", challenge)
                    .addQueryParameter("pass", pass)
--- a/app/src/main/java/eu/kanade/tachiyomi/network/OkHttpExtensions.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/network/OkHttpExtensions.kt
@ -61,7 +61,7 @@ fun OkHttpClient.newCallWithProgress(request: Request, listener: ProgressListene
            .addNetworkInterceptor { chain ->
                val originalResponse = chain.proceed(chain.request())
                originalResponse.newBuilder()
-                        .body(ProgressResponseBody(originalResponse.body(), listener))
+                        .body(ProgressResponseBody(originalResponse.body()!!, listener))
                        .build()
            }
            .build()
--- a/app/src/main/java/eu/kanade/tachiyomi/network/PersistentCookieStore.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/network/PersistentCookieStore.kt
@ -18,7 +18,7 @@ class PersistentCookieStore(context: Context) {
            if (cookies != null) {
                try {
                    val url = HttpUrl.parse("http://$key")
-                    val nonExpiredCookies = cookies.map { Cookie.parse(url, it) }
+                    val nonExpiredCookies = cookies.mapNotNull { Cookie.parse(url, it) }
                            .filter { !it.hasExpired() }
                    cookieMap.put(key, nonExpiredCookies)
                } catch (e: Exception) {
--- a/app/src/main/java/eu/kanade/tachiyomi/network/ProgressResponseBody.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/network/ProgressResponseBody.kt
@ -12,7 +12,7 @@ class ProgressResponseBody(private val responseBody: ResponseBody, private val p
    }

    override fun contentType(): MediaType {
-        return responseBody.contentType()
+        return responseBody.contentType()!!
    }

    override fun contentLength(): Long {
--- a/app/src/main/java/eu/kanade/tachiyomi/source/LocalSource.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/LocalSource.kt
@ -57,7 +57,7 @@ class LocalSource(private val context: Context) : CatalogueSource {

    override val id = ID
    override val name = "LocalSource"
-    override val lang = "en"
+    override val lang = ""
    override val supportsLatest = true

    override fun toString() = context.getString(R.string.local_source)
--- a/app/src/main/java/eu/kanade/tachiyomi/source/SourceFactory.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/SourceFactory.kt
@ -0,0 +1,12 @@
+package eu.kanade.tachiyomi.source
+
+/**
+ * A factory for creating sources at runtime.
+ */
+interface SourceFactory {
+    /**
+     * Create a new copy of the sources
+     * @return The created sources
+     */
+    fun createSources(): List<Source>
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/source/SourceManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/SourceManager.kt
@ -74,7 +74,7 @@ open class SourceManager(private val context: Context) {
                    val map = file.inputStream().use { yaml.loadAs(it, Map::class.java) }
                    sources.add(YamlHttpSource(map))
                } catch (e: Exception) {
-                    Timber.e("Error loading source from file. Bad format?")
+                    Timber.e("Error loading source from file. Bad format?", e)
                }
            }
        }
@ -95,25 +95,29 @@ open class SourceManager(private val context: Context) {
            val extName = pkgManager.getApplicationLabel(appInfo).toString()
                    .substringAfter("Tachiyomi: ")
            val version = pkgInfo.versionName
-            var sourceClass = appInfo.metaData.getString(METADATA_SOURCE_CLASS)
-            if (sourceClass.startsWith(".")) {
-                sourceClass = pkgInfo.packageName + sourceClass
-            }
+            val sourceClasses = appInfo.metaData.getString(METADATA_SOURCE_CLASS)
+                    .split(";")
+                    .map {
+                        val sourceClass = it.trim()
+                        if(sourceClass.startsWith("."))
+                            pkgInfo.packageName + sourceClass
+                        else
+                            sourceClass
+                    }

-            val extension = Extension(extName, appInfo, version, sourceClass)
+            val extension = Extension(extName, appInfo, version, sourceClasses)
            try {
-                val instance = loadExtension(extension)
-                sources.add(instance)
+                sources += loadExtension(extension)
            } catch (e: Exception) {
-                Timber.e("Extension load error: $extName. Reason: ${e.message}")
+                Timber.e("Extension load error: $extName.", e)
            } catch (e: LinkageError) {
-                Timber.e("Extension load error: $extName. Reason: ${e.message}")
+                Timber.e("Extension load error: $extName.", e)
            }
        }
        return sources
    }

-    private fun loadExtension(ext: Extension): Source {
+    private fun loadExtension(ext: Extension): List<Source> {
        // Validate lib version
        val majorLibVersion = ext.version.substringBefore('.').toInt()
        if (majorLibVersion < LIB_VERSION_MIN || majorLibVersion > LIB_VERSION_MAX) {
@ -122,13 +126,20 @@ open class SourceManager(private val context: Context) {
        }

        val classLoader = PathClassLoader(ext.appInfo.sourceDir, null, context.classLoader)
-        return Class.forName(ext.sourceClass, false, classLoader).newInstance() as Source
+        return ext.sourceClasses.flatMap {
+            val obj = Class.forName(it, false, classLoader).newInstance()
+            when(obj) {
+                is Source -> listOf(obj)
+                is SourceFactory -> obj.createSources()
+                else -> throw Exception("Unknown source class type!")
+            }
+        }
    }

    class Extension(val name: String,
                    val appInfo: ApplicationInfo,
                    val version: String,
-                    val sourceClass: String)
+                    val sourceClasses: List<String>)

    private companion object {
        const val EXTENSION_FEATURE = "tachiyomi.extension"
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/YamlHttpSource.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/YamlHttpSource.kt
@ -171,7 +171,7 @@ class YamlHttpSource(mappings: Map<*, *>) : HttpSource() {
    }

    override fun pageListParse(response: Response): List<Page> {
-        val body = response.body().string()
+        val body = response.body()!!.string()
        val url = response.request().url().toString()

        val pages = mutableListOf<Page>()
@ -216,7 +216,7 @@ class YamlHttpSource(mappings: Map<*, *>) : HttpSource() {
    }

    override fun imageUrlParse(response: Response): String {
-        val body = response.body().string()
+        val body = response.body()!!.string()
        val url = response.request().url().toString()

        with(map.pages) {
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Batoto.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Batoto.kt
@ -28,7 +28,7 @@ class Batoto : ParsedHttpSource(), LoginSource {

    override val name = "Batoto"

-    override val baseUrl = "http://bato.to"
+    override val baseUrl = "https://bato.to"

    override val lang = "en"

@ -52,7 +52,7 @@ class Batoto : ParsedHttpSource(), LoginSource {
            .add("Cookie", "lang_option=English")

    private val pageHeaders = super.headersBuilder()
-            .add("Referer", "http://bato.to/reader")
+            .add("Referer", "$baseUrl/reader")
            .build()

    override fun popularMangaRequest(page: Int): Request {
@ -69,7 +69,7 @@ class Batoto : ParsedHttpSource(), LoginSource {

    override fun popularMangaFromElement(element: Element): SManga {
        val manga = SManga.create()
-        element.select("a[href^=http://bato.to]").first().let {
+        element.select("a[href^=$baseUrl]").first().let {
            manga.setUrlWithoutDomain(it.attr("href"))
            manga.title = it.text().trim()
        }
@ -85,7 +85,7 @@ class Batoto : ParsedHttpSource(), LoginSource {
    override fun latestUpdatesNextPageSelector() = "#show_more_row"

    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
-        val url = HttpUrl.parse("$baseUrl/search_ajax").newBuilder()
+        val url = HttpUrl.parse("$baseUrl/search_ajax")!!.newBuilder()
        if (!query.isEmpty()) url.addQueryParameter("name", query).addQueryParameter("name_cond", "c")
        var genres = ""
        filters.forEach { filter ->
@ -161,8 +161,20 @@ class Batoto : ParsedHttpSource(), LoginSource {
        else -> SManga.UNKNOWN
    }

+    override fun chapterListRequest(manga: SManga): Request {
+        // Https is currently very slow. The replace also saves a redirection.
+        var newUrl = "http://bato.to" + manga.url
+        if ("/comic/_/comics/" !in newUrl) {
+            newUrl = newUrl.replace("/comic/_/", "/comic/_/comics/")
+        }
+
+        return super.chapterListRequest(manga).newBuilder()
+                .url(newUrl)
+                .build()
+    }
+
    override fun chapterListParse(response: Response): List<SChapter> {
-        val body = response.body().string()
+        val body = response.body()!!.string()
        val matcher = staffNotice.matcher(body)
        if (matcher.find()) {
            @Suppress("DEPRECATION")
@ -177,7 +189,7 @@ class Batoto : ParsedHttpSource(), LoginSource {
    override fun chapterListSelector() = "tr.row.lang_English.chapter_row"

    override fun chapterFromElement(element: Element): SChapter {
-        val urlElement = element.select("a[href^=http://bato.to/reader").first()
+        val urlElement = element.select("a[href^=$baseUrl/reader").first()

        val chapter = SChapter.create()
        chapter.setUrlWithoutDomain(urlElement.attr("href"))
@ -271,7 +283,7 @@ class Batoto : ParsedHttpSource(), LoginSource {
    }

    override fun isAuthenticationSuccessful(response: Response) =
-            response.priorResponse() != null && response.priorResponse().code() == 302
+            response.priorResponse() != null && response.priorResponse()!!.code() == 302

    override fun isLogged(): Boolean {
        return network.cookies.get(URI(baseUrl)).any { it.name() == "pass_hash" }
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Kissmanga.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Kissmanga.kt
@ -115,13 +115,13 @@ class Kissmanga : ParsedHttpSource() {
    override fun pageListRequest(chapter: SChapter) = POST(baseUrl + chapter.url, headers)

    override fun pageListParse(response: Response): List<Page> {
-        val body = response.body().string()
+        val body = response.body()!!.string()

        val pages = mutableListOf<Page>()

        // Kissmanga now encrypts the urls, so we need to execute these two scripts in JS.
-        val ca = client.newCall(GET("$baseUrl/Scripts/ca.js", headers)).execute().body().string()
-        val lo = client.newCall(GET("$baseUrl/Scripts/lo.js", headers)).execute().body().string()
+        val ca = client.newCall(GET("$baseUrl/Scripts/ca.js", headers)).execute().body()!!.string()
+        val lo = client.newCall(GET("$baseUrl/Scripts/lo.js", headers)).execute().body()!!.string()

        Duktape.create().use {
            it.evaluate(ca)
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Mangafox.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Mangafox.kt
@ -55,7 +55,7 @@ class Mangafox : ParsedHttpSource() {
    override fun latestUpdatesNextPageSelector() = "a:has(span.next)"

    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
-        val url = HttpUrl.parse("$baseUrl/search.php?name_method=cw&author_method=cw&artist_method=cw&advopts=1").newBuilder().addQueryParameter("name", query)
+        val url = HttpUrl.parse("$baseUrl/search.php?name_method=cw&author_method=cw&artist_method=cw&advopts=1")!!.newBuilder().addQueryParameter("name", query)
        (if (filters.isEmpty()) getFilterList() else filters).forEach { filter ->
            when (filter) {
                is Status -> url.addQueryParameter(filter.id, filter.state.toString())
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Mangahere.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Mangahere.kt
@ -57,7 +57,7 @@ class Mangahere : ParsedHttpSource() {
    override fun latestUpdatesNextPageSelector() = "div.next-page > a.next"

    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
-        val url = HttpUrl.parse("$baseUrl/search.php?name_method=cw&author_method=cw&artist_method=cw&advopts=1").newBuilder().addQueryParameter("name", query)
+        val url = HttpUrl.parse("$baseUrl/search.php?name_method=cw&author_method=cw&artist_method=cw&advopts=1")!!.newBuilder().addQueryParameter("name", query)
        (if (filters.isEmpty()) getFilterList() else filters).forEach { filter ->
            when (filter) {
                is Status -> url.addQueryParameter("is_completed", arrayOf("", "1", "0")[filter.state])
@ -152,6 +152,11 @@ class Mangahere : ParsedHttpSource() {
    }

    override fun pageListParse(document: Document): List<Page> {
+        val licensedError = document.select(".mangaread_error > .mt10").first()
+        if (licensedError != null) {
+            throw Exception(licensedError.text())
+        }
+
        val pages = mutableListOf<Page>()
        document.select("select.wid60").first()?.getElementsByTag("option")?.forEach {
            pages.add(Page(pages.size, it.attr("value")))
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Mangasee.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/english/Mangasee.kt
@ -54,7 +54,7 @@ class Mangasee : ParsedHttpSource() {
    override fun searchMangaSelector() = "div.requested > div.row"

    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
-        val url = HttpUrl.parse("$baseUrl/search/request.php").newBuilder()
+        val url = HttpUrl.parse("$baseUrl/search/request.php")!!.newBuilder()
        if (!query.isEmpty()) url.addQueryParameter("keyword", query)
        val genres = mutableListOf<String>()
        val genresNo = mutableListOf<String>()
@ -84,7 +84,7 @@ class Mangasee : ParsedHttpSource() {
    }

    private fun convertQueryToPost(page: Int, url: String): Pair<FormBody.Builder, String> {
-        val url = HttpUrl.parse(url)
+        val url = HttpUrl.parse(url)!!
        val body = FormBody.Builder().add("page", page.toString())
        for (i in 0..url.querySize() - 1) {
            body.add(url.queryParameterName(i), url.queryParameterValue(i))
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/russian/Mangachan.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/russian/Mangachan.kt
@ -152,7 +152,7 @@ class Mangachan : ParsedHttpSource() {
    }

    override fun pageListParse(response: Response): List<Page> {
-        val html = response.body().string()
+        val html = response.body()!!.string()
        val beginIndex = html.indexOf("fullimg\":[") + 10
        val endIndex = html.indexOf(",]", beginIndex)
        val trimmedHtml = html.substring(beginIndex, endIndex).replace("\"", "")
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/russian/Mintmanga.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/russian/Mintmanga.kt
@ -120,7 +120,7 @@ class Mintmanga : ParsedHttpSource() {
    }

    override fun pageListParse(response: Response): List<Page> {
-        val html = response.body().string()
+        val html = response.body()!!.string()
        val beginIndex = html.indexOf("rm_h.init( [")
        val endIndex = html.indexOf("], 0, false);", beginIndex)
        val trimmedHtml = html.substring(beginIndex, endIndex)
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/russian/Readmanga.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/russian/Readmanga.kt
@ -120,7 +120,7 @@ class Readmanga : ParsedHttpSource() {
    }

    override fun pageListParse(response: Response): List<Page> {
-        val html = response.body().string()
+        val html = response.body()!!.string()
        val beginIndex = html.indexOf("rm_h.init( [")
        val endIndex = html.indexOf("], 0, false);", beginIndex)
        val trimmedHtml = html.substring(beginIndex, endIndex)
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/backup/BackupFragment.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/backup/BackupFragment.kt
@ -1,163 +0,0 @@
-package eu.kanade.tachiyomi.ui.backup
-
-import android.app.Activity
-import android.app.Dialog
-import android.content.Intent
-import android.net.Uri
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import com.afollestad.materialdialogs.MaterialDialog
-import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.ui.base.activity.ActivityMixin
-import eu.kanade.tachiyomi.ui.base.fragment.BaseRxFragment
-import eu.kanade.tachiyomi.util.toast
-import kotlinx.android.synthetic.main.fragment_backup.*
-import nucleus.factory.RequiresPresenter
-import rx.Observable
-import rx.android.schedulers.AndroidSchedulers
-import rx.internal.util.SubscriptionList
-import rx.schedulers.Schedulers
-import timber.log.Timber
-import java.io.File
-import java.text.SimpleDateFormat
-import java.util.*
-
-/**
- * Fragment to create and restore backups of the application's data.
- * Uses R.layout.fragment_backup.
- */
-@RequiresPresenter(BackupPresenter::class)
-class BackupFragment : BaseRxFragment<BackupPresenter>() {
-
-    private var backupDialog: Dialog? = null
-    private var restoreDialog: Dialog? = null
-
-    private lateinit var subscriptions: SubscriptionList
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedState: Bundle?): View {
-        return inflater.inflate(R.layout.fragment_backup, container, false)
-    }
-
-    override fun onViewCreated(view: View, savedState: Bundle?) {
-        setToolbarTitle(getString(R.string.label_backup))
-
-        (activity as ActivityMixin).requestPermissionsOnMarshmallow()
-        subscriptions = SubscriptionList()
-
-        backup_button.setOnClickListener {
-            val today = SimpleDateFormat("yyyy-MM-dd").format(Date())
-            val file = File(activity.externalCacheDir, "tachiyomi-$today.json")
-            presenter.createBackup(file)
-
-            backupDialog = MaterialDialog.Builder(activity)
-                    .content(R.string.backup_please_wait)
-                    .progress(true, 0)
-                    .show()
-        }
-
-        restore_button.setOnClickListener {
-            val intent = Intent(Intent.ACTION_GET_CONTENT)
-            intent.addCategory(Intent.CATEGORY_OPENABLE)
-            intent.type = "application/*"
-            val chooser = Intent.createChooser(intent, getString(R.string.file_select_backup))
-            startActivityForResult(chooser, REQUEST_BACKUP_OPEN)
-        }
-    }
-
-    override fun onDestroyView() {
-        subscriptions.unsubscribe()
-        super.onDestroyView()
-    }
-
-    /**
-     * Called from the presenter when the backup is completed.
-     *
-     * @param file the file where the backup is saved.
-     */
-    fun onBackupCompleted(file: File) {
-        dismissBackupDialog()
-        val intent = Intent(Intent.ACTION_SEND)
-        intent.type = "application/json"
-        intent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + file))
-        startActivity(Intent.createChooser(intent, ""))
-    }
-
-    /**
-     * Called from the presenter when the restore is completed.
-     */
-    fun onRestoreCompleted() {
-        dismissRestoreDialog()
-        context.toast(R.string.backup_completed)
-    }
-
-    /**
-     * Called from the presenter when there's an error doing the backup.
-     * @param error the exception thrown.
-     */
-    fun onBackupError(error: Throwable) {
-        dismissBackupDialog()
-        context.toast(error.message)
-    }
-
-    /**
-     * Called from the presenter when there's an error restoring the backup.
-     * @param error the exception thrown.
-     */
-    fun onRestoreError(error: Throwable) {
-        dismissRestoreDialog()
-        context.toast(error.message)
-    }
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        if (data != null && resultCode == Activity.RESULT_OK && requestCode == REQUEST_BACKUP_OPEN) {
-            restoreDialog = MaterialDialog.Builder(activity)
-                    .content(R.string.restore_please_wait)
-                    .progress(true, 0)
-                    .show()
-
-            // When using cloud services, we have to open the input stream in a background thread.
-            Observable.fromCallable { context.contentResolver.openInputStream(data.data) }
-                    .subscribeOn(Schedulers.io())
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .subscribe({
-                        presenter.restoreBackup(it)
-                    }, { error ->
-                        context.toast(error.message)
-                        Timber.e(error)
-                    })
-                    .apply { subscriptions.add(this) }
-
-        }
-    }
-
-    /**
-     * Dismisses the backup dialog.
-     */
-    fun dismissBackupDialog() {
-        backupDialog?.let {
-            it.dismiss()
-            backupDialog = null
-        }
-    }
-
-    /**
-     * Dismisses the restore dialog.
-     */
-    fun dismissRestoreDialog() {
-        restoreDialog?.let {
-            it.dismiss()
-            restoreDialog = null
-        }
-    }
-
-    companion object {
-
-        private val REQUEST_BACKUP_OPEN = 102
-
-        fun newInstance(): BackupFragment {
-            return BackupFragment()
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/backup/BackupPresenter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/backup/BackupPresenter.kt
@ -1,94 +0,0 @@
-package eu.kanade.tachiyomi.ui.backup
-
-import android.os.Bundle
-import eu.kanade.tachiyomi.data.backup.BackupManager
-import eu.kanade.tachiyomi.data.database.DatabaseHelper
-import eu.kanade.tachiyomi.ui.base.presenter.BasePresenter
-import eu.kanade.tachiyomi.util.isNullOrUnsubscribed
-import rx.Observable
-import rx.Subscription
-import rx.android.schedulers.AndroidSchedulers
-import rx.schedulers.Schedulers
-import uy.kohesive.injekt.injectLazy
-import java.io.File
-import java.io.InputStream
-
-/**
- * Presenter of [BackupFragment].
- */
-class BackupPresenter : BasePresenter<BackupFragment>() {
-
-    /**
-     * Database.
-     */
-    val db: DatabaseHelper by injectLazy()
-
-    /**
-     * Backup manager.
-     */
-    private lateinit var backupManager: BackupManager
-
-    /**
-     * Subscription where the backup is restored.
-     */
-    private var restoreSubscription: Subscription? = null
-
-    /**
-     * Subscription where the backup is created.
-     */
-    private var backupSubscription: Subscription? = null
-
-    override fun onCreate(savedState: Bundle?) {
-        super.onCreate(savedState)
-        backupManager = BackupManager(db)
-    }
-
-    /**
-     * Creates a backup and saves it to a file.
-     *
-     * @param file the path where the file will be saved.
-     */
-    fun createBackup(file: File) {
-        if (backupSubscription.isNullOrUnsubscribed()) {
-            backupSubscription = getBackupObservable(file)
-                    .subscribeOn(Schedulers.io())
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .subscribeFirst(
-                            { view, result -> view.onBackupCompleted(file) },
-                            BackupFragment::onBackupError)
-        }
-    }
-
-    /**
-     * Restores a backup from a stream.
-     *
-     * @param stream the input stream of the backup file.
-     */
-    fun restoreBackup(stream: InputStream) {
-        if (restoreSubscription.isNullOrUnsubscribed()) {
-            restoreSubscription = getRestoreObservable(stream)
-                    .subscribeOn(Schedulers.io())
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .subscribeFirst(
-                            { view, result -> view.onRestoreCompleted() },
-                            BackupFragment::onRestoreError)
-        }
-    }
-
-    /**
-     * Returns the observable to save a backup.
-     */
-    private fun getBackupObservable(file: File) = Observable.fromCallable {
-        backupManager.backupToFile(file)
-        true
-    }
-
-    /**
-     * Returns the observable to restore a backup.
-     */
-    private fun getRestoreObservable(stream: InputStream) = Observable.fromCallable {
-        backupManager.restoreFromStream(stream)
-        true
-    }
-
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/ActivityMixin.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/ActivityMixin.kt
@ -1,83 +0,0 @@
-package eu.kanade.tachiyomi.ui.base.activity
-
-import android.Manifest
-import android.content.pm.PackageManager
-import android.os.Build
-import android.support.v4.app.ActivityCompat
-import android.support.v4.content.ContextCompat
-import android.support.v7.app.ActionBar
-import android.support.v7.app.AppCompatActivity
-import android.support.v7.widget.Toolbar
-import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.data.preference.PreferencesHelper
-import uy.kohesive.injekt.Injekt
-import uy.kohesive.injekt.api.get
-
-interface ActivityMixin {
-
-    var resumed: Boolean
-
-    fun setupToolbar(toolbar: Toolbar, backNavigation: Boolean = true) {
-        setSupportActionBar(toolbar)
-        getSupportActionBar()?.setDisplayHomeAsUpEnabled(true)
-        if (backNavigation) {
-            toolbar.setNavigationOnClickListener {
-                if (resumed) {
-                    onBackPressed()
-                }
-            }
-        }
-    }
-
-    fun setAppTheme() {
-        setTheme(when (Injekt.get<PreferencesHelper>().theme()) {
-            2 -> R.style.Theme_Tachiyomi_Dark
-            else -> R.style.Theme_Tachiyomi
-        })
-    }
-
-    fun setToolbarTitle(title: String) {
-        getSupportActionBar()?.title = title
-    }
-
-    fun setToolbarTitle(titleResource: Int) {
-        getSupportActionBar()?.title = getString(titleResource)
-    }
-
-    fun setToolbarSubtitle(title: String) {
-        getSupportActionBar()?.subtitle = title
-    }
-
-    fun setToolbarSubtitle(titleResource: Int) {
-        getSupportActionBar()?.subtitle = getString(titleResource)
-    }
-
-    /**
-     * Requests read and write permissions on Android M and higher.
-     */
-    fun requestPermissionsOnMarshmallow() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            if (ContextCompat.checkSelfPermission(getActivity(),
-                    Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
-
-                ActivityCompat.requestPermissions(getActivity(),
-                        arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE),
-                        1)
-
-            }
-        }
-    }
-
-    fun getActivity(): AppCompatActivity
-
-    fun onBackPressed()
-
-    fun getSupportActionBar(): ActionBar?
-
-    fun setSupportActionBar(toolbar: Toolbar?)
-
-    fun setTheme(resource: Int)
-
-    fun getString(resource: Int): String
-
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/BaseActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/BaseActivity.kt
@ -3,24 +3,11 @@ package eu.kanade.tachiyomi.ui.base.activity
 import android.support.v7.app.AppCompatActivity
 import eu.kanade.tachiyomi.util.LocaleHelper

-abstract class BaseActivity : AppCompatActivity(), ActivityMixin {
-
-    override var resumed = false
+abstract class BaseActivity : AppCompatActivity() {

    init {
+        @Suppress("LeakingThis")
        LocaleHelper.updateConfiguration(this)
    }

-    override fun getActivity() = this
-
-    override fun onResume() {
-        super.onResume()
-        resumed = true
-    }
-
-    override fun onPause() {
-        resumed = false
-        super.onPause()
-    }
-
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/BaseRxActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/BaseRxActivity.kt
@ -1,40 +1,14 @@
 package eu.kanade.tachiyomi.ui.base.activity

-import android.os.Bundle
-import eu.kanade.tachiyomi.App
 import eu.kanade.tachiyomi.ui.base.presenter.BasePresenter
 import eu.kanade.tachiyomi.util.LocaleHelper
 import nucleus.view.NucleusAppCompatActivity

-abstract class BaseRxActivity<P : BasePresenter<*>> : NucleusAppCompatActivity<P>(), ActivityMixin {
-
-    override var resumed = false
+abstract class BaseRxActivity<P : BasePresenter<*>> : NucleusAppCompatActivity<P>() {

    init {
+        @Suppress("LeakingThis")
        LocaleHelper.updateConfiguration(this)
    }

-    override fun onCreate(savedState: Bundle?) {
-        val superFactory = presenterFactory
-        setPresenterFactory {
-            superFactory.createPresenter().apply {
-                val app = application as App
-                context = app.applicationContext
-            }
-        }
-        super.onCreate(savedState)
-    }
-
-    override fun getActivity() = this
-
-    override fun onResume() {
-        super.onResume()
-        resumed = true
-    }
-
-    override fun onPause() {
-        resumed = false
-        super.onPause()
-    }
-
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/adapter/FlexibleViewHolder.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/adapter/FlexibleViewHolder.kt
@ -1,39 +0,0 @@
-package eu.kanade.tachiyomi.ui.base.adapter
-
-import android.support.v7.widget.RecyclerView
-import android.view.View
-
-import eu.davidea.flexibleadapter4.FlexibleAdapter
-
-abstract class FlexibleViewHolder(view: View,
-                                  private val adapter: FlexibleAdapter<*, *>,
-                                  private val itemClickListener: FlexibleViewHolder.OnListItemClickListener) :
-        RecyclerView.ViewHolder(view), View.OnClickListener, View.OnLongClickListener {
-
-    init {
-        view.setOnClickListener(this)
-        view.setOnLongClickListener(this)
-    }
-
-    override fun onClick(view: View) {
-        if (itemClickListener.onListItemClick(adapterPosition)) {
-            toggleActivation()
-        }
-    }
-
-    override fun onLongClick(view: View): Boolean {
-        itemClickListener.onListItemLongClick(adapterPosition)
-        toggleActivation()
-        return true
-    }
-
-    fun toggleActivation() {
-        itemView.isActivated = adapter.isSelected(adapterPosition)
-    }
-
-    interface OnListItemClickListener {
-        fun onListItemClick(position: Int): Boolean
-        fun onListItemLongClick(position: Int)
-    }
-
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/adapter/SmartFragmentStatePagerAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/adapter/SmartFragmentStatePagerAdapter.kt
@ -1,41 +0,0 @@
-package eu.kanade.tachiyomi.ui.base.adapter
-
-import android.support.v4.app.Fragment
-import android.support.v4.app.FragmentManager
-import android.support.v4.app.FragmentStatePagerAdapter
-import android.util.SparseArray
-import android.view.ViewGroup
-import java.util.*
-
-abstract class SmartFragmentStatePagerAdapter(fragmentManager: FragmentManager) :
-        FragmentStatePagerAdapter(fragmentManager) {
-    // Sparse array to keep track of registered fragments in memory
-    private val registeredFragments = SparseArray<Fragment>()
-
-    // Register the fragment when the item is instantiated
-    override fun instantiateItem(container: ViewGroup, position: Int): Any {
-        val fragment = super.instantiateItem(container, position) as Fragment
-        registeredFragments.put(position, fragment)
-        return fragment
-    }
-
-    // Unregister when the item is inactive
-    override fun destroyItem(container: ViewGroup?, position: Int, `object`: Any) {
-        registeredFragments.remove(position)
-        super.destroyItem(container, position, `object`)
-    }
-
-    // Returns the fragment for the position (if instantiated)
-    fun getRegisteredFragment(position: Int): Fragment {
-        return registeredFragments.get(position)
-    }
-
-    fun getRegisteredFragments(): List<Fragment> {
-        val fragments = ArrayList<Fragment>()
-        for (i in 0..registeredFragments.size() - 1) {
-            fragments.add(registeredFragments.valueAt(i))
-        }
-        return fragments
-    }
-
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/BaseController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/BaseController.kt
@ -0,0 +1,47 @@
+package eu.kanade.tachiyomi.ui.base.controller
+
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import com.bluelinelabs.conductor.ControllerChangeHandler
+import com.bluelinelabs.conductor.ControllerChangeType
+import com.bluelinelabs.conductor.RestoreViewOnCreateController
+
+abstract class BaseController(bundle: Bundle? = null) : RestoreViewOnCreateController(bundle) {
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup, savedViewState: Bundle?): View {
+        val view = inflateView(inflater, container)
+        onViewCreated(view, savedViewState)
+        return view
+    }
+
+    abstract fun inflateView(inflater: LayoutInflater, container: ViewGroup): View
+
+    open fun onViewCreated(view: View, savedViewState: Bundle?) { }
+
+    override fun onChangeStarted(handler: ControllerChangeHandler, type: ControllerChangeType) {
+        if (type.isEnter) {
+            setTitle()
+        }
+        super.onChangeStarted(handler, type)
+    }
+
+    open fun getTitle(): String? {
+        return null
+    }
+
+    private fun setTitle() {
+        var parentController = parentController
+        while (parentController != null) {
+            if (parentController is BaseController && parentController.getTitle() != null) {
+                return
+            }
+            parentController = parentController.parentController
+        }
+
+        (activity as? AppCompatActivity)?.supportActionBar?.title = getTitle()
+    }
+
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/ConductorExtensions.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/ConductorExtensions.kt
@ -0,0 +1,12 @@
+package eu.kanade.tachiyomi.ui.base.controller
+
+import com.bluelinelabs.conductor.Router
+
+fun Router.popControllerWithTag(tag: String): Boolean {
+    val controller = getControllerWithTag(tag)
+    if (controller != null) {
+        popController(controller)
+        return true
+    }
+    return false
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/DialogController.java
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/DialogController.java
@ -0,0 +1,139 @@
+package eu.kanade.tachiyomi.ui.base.controller;
+
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.bluelinelabs.conductor.RestoreViewOnCreateController;
+import com.bluelinelabs.conductor.Router;
+import com.bluelinelabs.conductor.RouterTransaction;
+import com.bluelinelabs.conductor.changehandler.SimpleSwapChangeHandler;
+
+/**
+ * A controller that displays a dialog window, floating on top of its activity's window.
+ * This is a wrapper over {@link Dialog} object like {@link android.app.DialogFragment}.
+ *
+ * <p>Implementations should override this class and implement {@link #onCreateDialog(Bundle)} to create a custom dialog, such as an {@link android.app.AlertDialog}
+ */
+public abstract class DialogController extends RestoreViewOnCreateController {
+
+    private static final String SAVED_DIALOG_STATE_TAG = "android:savedDialogState";
+
+    private Dialog dialog;
+    private boolean dismissed;
+
+    /**
+     * Convenience constructor for use when no arguments are needed.
+     */
+    protected DialogController() {
+        super(null);
+    }
+
+    /**
+     * Constructor that takes arguments that need to be retained across restarts.
+     *
+     * @param args Any arguments that need to be retained.
+     */
+    protected DialogController(@Nullable Bundle args) {
+        super(args);
+    }
+
+    @NonNull
+    @Override
+    final protected View onCreateView(@NonNull LayoutInflater inflater, @NonNull ViewGroup container, @Nullable Bundle savedViewState) {
+        dialog = onCreateDialog(savedViewState);
+        //noinspection ConstantConditions
+        dialog.setOwnerActivity(getActivity());
+        dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
+            @Override
+            public void onDismiss(DialogInterface dialog) {
+                dismissDialog();
+            }
+        });
+        if (savedViewState != null) {
+            Bundle dialogState = savedViewState.getBundle(SAVED_DIALOG_STATE_TAG);
+            if (dialogState != null) {
+                dialog.onRestoreInstanceState(dialogState);
+            }
+        }
+        return new View(getActivity());//stub view
+    }
+
+    @Override
+    protected void onSaveViewState(@NonNull View view, @NonNull Bundle outState) {
+        super.onSaveViewState(view, outState);
+        Bundle dialogState = dialog.onSaveInstanceState();
+        outState.putBundle(SAVED_DIALOG_STATE_TAG, dialogState);
+    }
+
+    @Override
+    protected void onAttach(@NonNull View view) {
+        super.onAttach(view);
+        dialog.show();
+    }
+
+    @Override
+    protected void onDetach(@NonNull View view) {
+        super.onDetach(view);
+        dialog.hide();
+    }
+
+    @Override
+    protected void onDestroyView(@NonNull View view) {
+        super.onDestroyView(view);
+        dialog.setOnDismissListener(null);
+        dialog.dismiss();
+        dialog = null;
+    }
+
+    /**
+     * Display the dialog, create a transaction and pushing the controller.
+     * @param router The router on which the transaction will be applied
+     */
+    public void showDialog(@NonNull Router router) {
+        showDialog(router, null);
+    }
+
+    /**
+     * Display the dialog, create a transaction and pushing the controller.
+     * @param router The router on which the transaction will be applied
+     * @param tag The tag for this controller
+     */
+    public void showDialog(@NonNull Router router, @Nullable String tag) {
+        dismissed = false;
+        router.pushController(RouterTransaction.with(this)
+                .pushChangeHandler(new SimpleSwapChangeHandler(false))
+                .popChangeHandler(new SimpleSwapChangeHandler(false))
+                .tag(tag));
+    }
+
+    /**
+     * Dismiss the dialog and pop this controller
+     */
+    public void dismissDialog() {
+        if (dismissed) {
+            return;
+        }
+        getRouter().popController(this);
+        dismissed = true;
+    }
+
+    @Nullable
+    protected Dialog getDialog() {
+        return dialog;
+    }
+
+    /**
+     * Build your own custom Dialog container such as an {@link android.app.AlertDialog}
+     *
+     * @param savedViewState A bundle for the view's state, which would have been created in {@link #onSaveViewState(View, Bundle)} or {@code null} if no saved state exists.
+     * @return Return a new Dialog instance to be displayed by the Controller
+     */
+    @NonNull
+    protected abstract Dialog onCreateDialog(@Nullable Bundle savedViewState);
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/NoToolbarElevationController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/NoToolbarElevationController.kt
@ -0,0 +1,3 @@
+package eu.kanade.tachiyomi.ui.base.controller
+
+interface NoToolbarElevationController
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/NucleusController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/NucleusController.kt
@ -0,0 +1,21 @@
+package eu.kanade.tachiyomi.ui.base.controller
+
+import android.os.Bundle
+import eu.kanade.tachiyomi.ui.base.presenter.NucleusConductorDelegate
+import eu.kanade.tachiyomi.ui.base.presenter.NucleusConductorLifecycleListener
+import nucleus.factory.PresenterFactory
+import nucleus.presenter.Presenter
+
+@Suppress("LeakingThis")
+abstract class NucleusController<P : Presenter<*>>(val bundle: Bundle? = null) : RxController(),
+        PresenterFactory<P> {
+
+    private val delegate = NucleusConductorDelegate(this)
+
+    val presenter: P
+        get() = delegate.presenter
+
+    init {
+        addLifecycleListener(NucleusConductorLifecycleListener(delegate))
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/RouterPagerAdapter.java
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/RouterPagerAdapter.java
@ -0,0 +1,186 @@
+package eu.kanade.tachiyomi.ui.base.controller;
+
+import android.os.Bundle;
+import android.os.Parcelable;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v4.view.PagerAdapter;
+import android.util.SparseArray;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.bluelinelabs.conductor.Controller;
+import com.bluelinelabs.conductor.Router;
+import com.bluelinelabs.conductor.RouterTransaction;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * An adapter for ViewPagers that uses Routers as pages
+ */
+public abstract class RouterPagerAdapter extends PagerAdapter {
+
+    private static final String KEY_SAVED_PAGES = "RouterPagerAdapter.savedStates";
+    private static final String KEY_MAX_PAGES_TO_STATE_SAVE = "RouterPagerAdapter.maxPagesToStateSave";
+    private static final String KEY_SAVE_PAGE_HISTORY = "RouterPagerAdapter.savedPageHistory";
+
+    private final Controller host;
+    private int maxPagesToStateSave = Integer.MAX_VALUE;
+    private SparseArray<Bundle> savedPages = new SparseArray<>();
+    private SparseArray<Router> visibleRouters = new SparseArray<>();
+    private ArrayList<Integer> savedPageHistory = new ArrayList<>();
+    private Router primaryRouter;
+
+    /**
+     * Creates a new RouterPagerAdapter using the passed host.
+     */
+    public RouterPagerAdapter(@NonNull Controller host) {
+        this.host = host;
+    }
+
+    /**
+     * Called when a router is instantiated. Here the router's root should be set if needed.
+     *
+     * @param router   The router used for the page
+     * @param position The page position to be instantiated.
+     */
+    public abstract void configureRouter(@NonNull Router router, int position);
+
+    /**
+     * Sets the maximum number of pages that will have their states saved. When this number is exceeded,
+     * the page that was state saved least recently will have its state removed from the save data.
+     */
+    public void setMaxPagesToStateSave(int maxPagesToStateSave) {
+        if (maxPagesToStateSave < 0) {
+            throw new IllegalArgumentException("Only positive integers may be passed for maxPagesToStateSave.");
+        }
+
+        this.maxPagesToStateSave = maxPagesToStateSave;
+
+        ensurePagesSaved();
+    }
+
+    @Override
+    public Object instantiateItem(ViewGroup container, int position) {
+        final String name = makeRouterName(container.getId(), getItemId(position));
+
+        Router router = host.getChildRouter(container, name);
+        if (!router.hasRootController()) {
+            Bundle routerSavedState = savedPages.get(position);
+
+            if (routerSavedState != null) {
+                router.restoreInstanceState(routerSavedState);
+                savedPages.remove(position);
+            }
+        }
+
+        router.rebindIfNeeded();
+        configureRouter(router, position);
+
+        if (router != primaryRouter) {
+            for (RouterTransaction transaction : router.getBackstack()) {
+                transaction.controller().setOptionsMenuHidden(true);
+            }
+        }
+
+        visibleRouters.put(position, router);
+        return router;
+    }
+
+    @Override
+    public void destroyItem(ViewGroup container, int position, Object object) {
+        Router router = (Router)object;
+
+        Bundle savedState = new Bundle();
+        router.saveInstanceState(savedState);
+        savedPages.put(position, savedState);
+
+        savedPageHistory.remove((Integer)position);
+        savedPageHistory.add(position);
+
+        ensurePagesSaved();
+
+        host.removeChildRouter(router);
+
+        visibleRouters.remove(position);
+    }
+
+    @Override
+    public void setPrimaryItem(ViewGroup container, int position, Object object) {
+        Router router = (Router)object;
+        if (router != primaryRouter) {
+            if (primaryRouter != null) {
+                for (RouterTransaction transaction : primaryRouter.getBackstack()) {
+                    transaction.controller().setOptionsMenuHidden(true);
+                }
+            }
+            if (router != null) {
+                for (RouterTransaction transaction : router.getBackstack()) {
+                    transaction.controller().setOptionsMenuHidden(false);
+                }
+            }
+            primaryRouter = router;
+        }
+    }
+
+    @Override
+    public boolean isViewFromObject(View view, Object object) {
+        Router router = (Router)object;
+        final List<RouterTransaction> backstack = router.getBackstack();
+        for (RouterTransaction transaction : backstack) {
+            if (transaction.controller().getView() == view) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public Parcelable saveState() {
+        Bundle bundle = new Bundle();
+        bundle.putSparseParcelableArray(KEY_SAVED_PAGES, savedPages);
+        bundle.putInt(KEY_MAX_PAGES_TO_STATE_SAVE, maxPagesToStateSave);
+        bundle.putIntegerArrayList(KEY_SAVE_PAGE_HISTORY, savedPageHistory);
+        return bundle;
+    }
+
+    @Override
+    public void restoreState(Parcelable state, ClassLoader loader) {
+        Bundle bundle = (Bundle)state;
+        if (state != null) {
+            savedPages = bundle.getSparseParcelableArray(KEY_SAVED_PAGES);
+            maxPagesToStateSave = bundle.getInt(KEY_MAX_PAGES_TO_STATE_SAVE);
+            savedPageHistory = bundle.getIntegerArrayList(KEY_SAVE_PAGE_HISTORY);
+        }
+    }
+
+    /**
+     * Returns the already instantiated Router in the specified position or {@code null} if there
+     * is no router associated with this position.
+     */
+    @Nullable
+    public Router getRouter(int position) {
+        return visibleRouters.get(position);
+    }
+
+    public long getItemId(int position) {
+        return position;
+    }
+
+    SparseArray<Bundle> getSavedPages() {
+        return savedPages;
+    }
+
+    private void ensurePagesSaved() {
+        while (savedPages.size() > maxPagesToStateSave) {
+            int positionToRemove = savedPageHistory.remove(0);
+            savedPages.remove(positionToRemove);
+        }
+    }
+
+    private static String makeRouterName(int viewId, long id) {
+        return viewId + ":" + id;
+    }
+
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/RxController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/RxController.kt
@ -0,0 +1,92 @@
+package eu.kanade.tachiyomi.ui.base.controller
+
+import android.os.Bundle
+import android.support.annotation.CallSuper
+import android.view.View
+import rx.Observable
+import rx.Subscription
+import rx.subscriptions.CompositeSubscription
+
+abstract class RxController(bundle: Bundle? = null) : BaseController(bundle) {
+
+    var untilDetachSubscriptions = CompositeSubscription()
+        private set
+
+    var untilDestroySubscriptions = CompositeSubscription()
+        private set
+
+    @CallSuper
+    override fun onAttach(view: View) {
+        super.onAttach(view)
+        if (untilDetachSubscriptions.isUnsubscribed) {
+            untilDetachSubscriptions = CompositeSubscription()
+        }
+    }
+
+    @CallSuper
+    override fun onDetach(view: View) {
+        super.onDetach(view)
+        untilDetachSubscriptions.unsubscribe()
+    }
+
+    @CallSuper
+    override fun onViewCreated(view: View, savedViewState: Bundle?) {
+        if (untilDestroySubscriptions.isUnsubscribed) {
+            untilDestroySubscriptions = CompositeSubscription()
+        }
+    }
+
+    @CallSuper
+    override fun onDestroyView(view: View) {
+        super.onDestroyView(view)
+        untilDestroySubscriptions.unsubscribe()
+    }
+
+
+    fun <T> Observable<T>.subscribeUntilDetach(): Subscription {
+
+        return subscribe().also { untilDetachSubscriptions.add(it) }
+    }
+
+    fun <T> Observable<T>.subscribeUntilDetach(onNext: (T) -> Unit): Subscription {
+
+        return subscribe(onNext).also { untilDetachSubscriptions.add(it) }
+    }
+
+    fun <T> Observable<T>.subscribeUntilDetach(onNext: (T) -> Unit,
+                                               onError: (Throwable) -> Unit): Subscription {
+
+        return subscribe(onNext, onError).also { untilDetachSubscriptions.add(it) }
+    }
+
+    fun <T> Observable<T>.subscribeUntilDetach(onNext: (T) -> Unit,
+                                               onError: (Throwable) -> Unit,
+                                               onCompleted: () -> Unit): Subscription {
+
+        return subscribe(onNext, onError, onCompleted).also { untilDetachSubscriptions.add(it) }
+    }
+
+    fun <T> Observable<T>.subscribeUntilDestroy(): Subscription {
+
+        return subscribe().also { untilDestroySubscriptions.add(it) }
+    }
+
+    fun <T> Observable<T>.subscribeUntilDestroy(onNext: (T) -> Unit): Subscription {
+
+        return subscribe(onNext).also { untilDestroySubscriptions.add(it) }
+    }
+
+    fun <T> Observable<T>.subscribeUntilDestroy(onNext: (T) -> Unit,
+                                                onError: (Throwable) -> Unit): Subscription {
+
+        return subscribe(onNext, onError).also { untilDestroySubscriptions.add(it) }
+    }
+
+    fun <T> Observable<T>.subscribeUntilDestroy(onNext: (T) -> Unit,
+                                                onError: (Throwable) -> Unit,
+                                                onCompleted: () -> Unit): Subscription {
+
+        return subscribe(onNext, onError, onCompleted).also { untilDestroySubscriptions.add(it) }
+    }
+
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/SecondaryDrawerController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/SecondaryDrawerController.kt
@ -0,0 +1,11 @@
+package eu.kanade.tachiyomi.ui.base.controller
+
+import android.support.v4.widget.DrawerLayout
+import android.view.ViewGroup
+
+interface SecondaryDrawerController {
+
+    fun createSecondaryDrawer(drawer: DrawerLayout): ViewGroup?
+
+    fun cleanupSecondaryDrawer(drawer: DrawerLayout)
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/TabbedController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/TabbedController.kt
@ -0,0 +1,10 @@
+package eu.kanade.tachiyomi.ui.base.controller
+
+import android.support.design.widget.TabLayout
+
+interface TabbedController {
+
+    fun configureTabs(tabs: TabLayout) {}
+
+    fun cleanupTabs(tabs: TabLayout) {}
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/fragment/BaseFragment.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/fragment/BaseFragment.kt
@ -1,7 +0,0 @@
-package eu.kanade.tachiyomi.ui.base.fragment
-
-import android.support.v4.app.Fragment
-
-abstract class BaseFragment : Fragment(), FragmentMixin {
-
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/fragment/BaseRxFragment.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/fragment/BaseRxFragment.kt
@ -1,20 +0,0 @@
-package eu.kanade.tachiyomi.ui.base.fragment
-
-import android.os.Bundle
-import eu.kanade.tachiyomi.App
-import eu.kanade.tachiyomi.ui.base.presenter.BasePresenter
-import nucleus.view.NucleusSupportFragment
-
-abstract class BaseRxFragment<P : BasePresenter<*>> : NucleusSupportFragment<P>(), FragmentMixin {
-
-    override fun onCreate(savedState: Bundle?) {
-        val superFactory = presenterFactory
-        setPresenterFactory {
-            superFactory.createPresenter().apply {
-                val app = activity.application as App
-                context = app.applicationContext
-            }
-        }
-        super.onCreate(savedState)
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/fragment/FragmentMixin.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/fragment/FragmentMixin.kt
@ -1,19 +0,0 @@
-package eu.kanade.tachiyomi.ui.base.fragment
-
-import android.support.v4.app.FragmentActivity
-import eu.kanade.tachiyomi.ui.base.activity.ActivityMixin
-
-interface FragmentMixin {
-
-    fun setToolbarTitle(title: String) {
-        (getActivity() as ActivityMixin).setToolbarTitle(title)
-    }
-
-    fun setToolbarTitle(resourceId: Int) {
-        (getActivity() as ActivityMixin).setToolbarTitle(getString(resourceId))
-    }
-
-    fun getActivity(): FragmentActivity
-    
-    fun getString(resource: Int): String
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/BasePresenter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/BasePresenter.kt
@ -1,13 +1,9 @@
 package eu.kanade.tachiyomi.ui.base.presenter

-import android.content.Context
 import nucleus.presenter.RxPresenter
-import nucleus.view.ViewWithPresenter
 import rx.Observable

-open class BasePresenter<V : ViewWithPresenter<*>> : RxPresenter<V>() {
-
-    lateinit var context: Context
+open class BasePresenter<V> : RxPresenter<V>() {

    /**
     * Subscribes an observable with [deliverFirst] and adds it to the presenter's lifecycle
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/NucleusConductorDelegate.java
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/NucleusConductorDelegate.java
@ -0,0 +1,67 @@
+package eu.kanade.tachiyomi.ui.base.presenter;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+
+import nucleus.factory.PresenterFactory;
+import nucleus.presenter.Presenter;
+
+public class NucleusConductorDelegate<P extends Presenter> {
+
+    @Nullable private P presenter;
+    @Nullable private Bundle bundle;
+    private boolean presenterHasView = false;
+
+    private PresenterFactory<P> factory;
+
+    public NucleusConductorDelegate(PresenterFactory<P> creator) {
+        this.factory = creator;
+    }
+
+    public P getPresenter() {
+        if (presenter == null) {
+            presenter = factory.createPresenter();
+            presenter.create(bundle);
+        }
+        bundle = null;
+        return presenter;
+    }
+
+    Bundle onSaveInstanceState() {
+        Bundle bundle = new Bundle();
+        getPresenter();
+        if (presenter != null) {
+            presenter.save(bundle);
+        }
+        return bundle;
+    }
+
+    void onRestoreInstanceState(Bundle presenterState) {
+        if (presenter != null)
+            throw new IllegalArgumentException("onRestoreInstanceState() should be called before onResume()");
+        bundle = presenterState;
+    }
+
+    void onTakeView(Object view) {
+        getPresenter();
+        if (presenter != null && !presenterHasView) {
+            //noinspection unchecked
+            presenter.takeView(view);
+            presenterHasView = true;
+        }
+    }
+
+    void onDropView() {
+        if (presenter != null && presenterHasView) {
+            presenter.dropView();
+            presenterHasView = false;
+        }
+    }
+
+    void onDestroy() {
+        if (presenter != null) {
+            presenter.destroy();
+            presenter = null;
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/NucleusConductorLifecycleListener.java
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/NucleusConductorLifecycleListener.java
@ -0,0 +1,44 @@
+package eu.kanade.tachiyomi.ui.base.presenter;
+
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.view.View;
+
+import com.bluelinelabs.conductor.Controller;
+
+public class NucleusConductorLifecycleListener extends Controller.LifecycleListener {
+
+    private static final String PRESENTER_STATE_KEY = "presenter_state";
+
+    private NucleusConductorDelegate delegate;
+
+    public NucleusConductorLifecycleListener(NucleusConductorDelegate delegate) {
+        this.delegate = delegate;
+    }
+
+    @Override
+    public void postCreateView(@NonNull Controller controller, @NonNull View view) {
+        delegate.onTakeView(controller);
+    }
+
+    @Override
+    public void preDestroyView(@NonNull Controller controller, @NonNull View view) {
+        delegate.onDropView();
+    }
+
+    @Override
+    public void preDestroy(@NonNull Controller controller) {
+        delegate.onDestroy();
+    }
+
+    @Override
+    public void onSaveInstanceState(@NonNull Controller controller, @NonNull Bundle outState) {
+        outState.putBundle(PRESENTER_STATE_KEY, delegate.onSaveInstanceState());
+    }
+
+    @Override
+    public void onRestoreInstanceState(@NonNull Controller controller, @NonNull Bundle savedInstanceState) {
+        delegate.onRestoreInstanceState(savedInstanceState.getBundle(PRESENTER_STATE_KEY));
+    }
+
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CatalogueController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CatalogueController.kt
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CatalogueGridHolder.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CatalogueGridHolder.kt
@ -6,7 +6,7 @@ import com.bumptech.glide.load.engine.DiskCacheStrategy
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.widget.StateImageViewTarget
-import kotlinx.android.synthetic.main.item_catalogue_grid.view.*
+import kotlinx.android.synthetic.main.catalogue_grid_item.view.*

 /**
 * Class used to hold the displayed data of a manga in the catalogue, like the cover or the title.
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CatalogueItem.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CatalogueItem.kt
@ -3,36 +3,45 @@ package eu.kanade.tachiyomi.ui.catalogue
 import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.ViewGroup
+import android.view.ViewGroup.LayoutParams.MATCH_PARENT
 import android.widget.FrameLayout
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
-import eu.davidea.flexibleadapter.items.IFlexible
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.util.inflate
 import eu.kanade.tachiyomi.widget.AutofitRecyclerView
-import kotlinx.android.synthetic.main.item_catalogue_grid.view.*
+import kotlinx.android.synthetic.main.catalogue_grid_item.view.*

 class CatalogueItem(val manga: Manga) : AbstractFlexibleItem<CatalogueHolder>() {

    override fun getLayoutRes(): Int {
-        return R.layout.item_catalogue_grid
+        return R.layout.catalogue_grid_item
    }

-    override fun createViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, inflater: LayoutInflater, parent: ViewGroup): CatalogueHolder {
+    override fun createViewHolder(adapter: FlexibleAdapter<*>,
+                                  inflater: LayoutInflater,
+                                  parent: ViewGroup): CatalogueHolder {
+
        if (parent is AutofitRecyclerView) {
-            val view = parent.inflate(R.layout.item_catalogue_grid).apply {
-                card.layoutParams = FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, parent.itemWidth / 3 * 4)
-                gradient.layoutParams = FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, parent.itemWidth / 3 * 4 / 2, Gravity.BOTTOM)
+            val view = parent.inflate(R.layout.catalogue_grid_item).apply {
+                card.layoutParams = FrameLayout.LayoutParams(
+                        MATCH_PARENT, parent.itemWidth / 3 * 4)
+                gradient.layoutParams = FrameLayout.LayoutParams(
+                        MATCH_PARENT, parent.itemWidth / 3 * 4 / 2, Gravity.BOTTOM)
            }
            return CatalogueGridHolder(view, adapter)
        } else {
-            val view = parent.inflate(R.layout.item_catalogue_list)
+            val view = parent.inflate(R.layout.catalogue_list_item)
            return CatalogueListHolder(view, adapter)
        }
    }

-    override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, holder: CatalogueHolder, position: Int, payloads: List<Any?>?) {
+    override fun bindViewHolder(adapter: FlexibleAdapter<*>,
+                                holder: CatalogueHolder,
+                                position: Int,
+                                payloads: List<Any?>?) {
+
        holder.onSetValues(manga)
    }

--- a/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CatalogueListHolder.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CatalogueListHolder.kt
@ -6,7 +6,7 @@ import com.bumptech.glide.load.engine.DiskCacheStrategy
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.util.getResourceColor
-import kotlinx.android.synthetic.main.item_catalogue_list.view.*
+import kotlinx.android.synthetic.main.catalogue_list_item.view.*

 /**
 * Class used to hold the displayed data of a manga in the catalogue, like the cover or the title.
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CataloguePresenter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/CataloguePresenter.kt
@ -5,10 +5,13 @@ import eu.davidea.flexibleadapter.items.IFlexible
 import eu.davidea.flexibleadapter.items.ISectionable
 import eu.kanade.tachiyomi.data.cache.CoverCache
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
+import eu.kanade.tachiyomi.data.database.models.Category
 import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.MangaCategory
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.data.preference.getOrDefault
 import eu.kanade.tachiyomi.source.CatalogueSource
+import eu.kanade.tachiyomi.source.LocalSource
 import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.source.model.Filter
@ -23,32 +26,18 @@ import rx.android.schedulers.AndroidSchedulers
 import rx.schedulers.Schedulers
 import rx.subjects.PublishSubject
 import timber.log.Timber
-import uy.kohesive.injekt.injectLazy
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get

 /**
- * Presenter of [CatalogueFragment].
+ * Presenter of [CatalogueController].
 */
-open class CataloguePresenter : BasePresenter<CatalogueFragment>() {
-
-    /**
-     * Source manager.
-     */
-    val sourceManager: SourceManager by injectLazy()
-
-    /**
-     * Database.
-     */
-    val db: DatabaseHelper by injectLazy()
-
-    /**
-     * Preferences.
-     */
-    val prefs: PreferencesHelper by injectLazy()
-
-    /**
-     * Cover cache.
-     */
-    val coverCache: CoverCache by injectLazy()
+open class CataloguePresenter(
+        val sourceManager: SourceManager = Injekt.get(),
+        val db: DatabaseHelper = Injekt.get(),
+        val prefs: PreferencesHelper = Injekt.get(),
+        val coverCache: CoverCache = Injekt.get()
+) : BasePresenter<CatalogueController>() {

    /**
     * Enabled sources.
@ -180,7 +169,7 @@ open class CataloguePresenter : BasePresenter<CatalogueFragment>() {
        pageSubscription = Observable.defer { pager.requestNext() }
                .subscribeFirst({ view, page ->
                    // Nothing to do when onNext is emitted.
-                }, CatalogueFragment::onAddPageError)
+                }, CatalogueController::onAddPageError)
    }

    /**
@ -315,15 +304,11 @@ open class CataloguePresenter : BasePresenter<CatalogueFragment>() {
        val languages = prefs.enabledLanguages().getOrDefault()
        val hiddenCatalogues = prefs.hiddenCatalogues().getOrDefault()

-        // Ensure at least one language
-        if (languages.isEmpty()) {
-            languages.add("en")
-        }
-
        return sourceManager.getCatalogueSources()
                .filter { it.lang in languages }
                .filterNot { it.id.toString() in hiddenCatalogues }
-                .sortedBy { "(${it.lang}) ${it.name}" }
+                .sortedBy { "(${it.lang}) ${it.name}" } +
+                sourceManager.get(LocalSource.ID) as LocalSource
    }

    /**
@ -396,4 +381,62 @@ open class CataloguePresenter : BasePresenter<CatalogueFragment>() {
        }
    }

+    /**
+     * Get the default, and user categories.
+     *
+     * @return List of categories, default plus user categories
+     */
+    fun getCategories(): List<Category> {
+        return db.getCategories().executeAsBlocking()
+    }
+
+    /**
+     * Gets the category id's the manga is in, if the manga is not in a category, returns the default id.
+     *
+     * @param manga the manga to get categories from.
+     * @return Array of category ids the manga is in, if none returns default id
+     */
+    fun getMangaCategoryIds(manga: Manga): Array<Int?> {
+        val categories = db.getCategoriesForManga(manga).executeAsBlocking()
+        return categories.mapNotNull { it.id }.toTypedArray()
+    }
+
+    /**
+     * Move the given manga to categories.
+     *
+     * @param categories the selected categories.
+     * @param manga the manga to move.
+     */
+    fun moveMangaToCategories(manga: Manga, categories: List<Category>) {
+        val mc = categories.filter { it.id != 0 }.map { MangaCategory.create(manga, it) }
+        db.setMangaCategories(mc, listOf(manga))
+    }
+
+    /**
+     * Move the given manga to the category.
+     *
+     * @param category the selected category.
+     * @param manga the manga to move.
+     */
+    fun moveMangaToCategory(manga: Manga, category: Category?) {
+        moveMangaToCategories(manga, listOfNotNull(category))
+    }
+
+    /**
+     * Update manga to use selected categories.
+     *
+     * @param manga needed to change
+     * @param selectedCategories selected categories
+     */
+    fun updateMangaCategories(manga: Manga, selectedCategories: List<Category>) {
+        if (!selectedCategories.isEmpty()) {
+            if (!manga.favorite)
+                changeMangaFavorite(manga)
+
+            moveMangaToCategories(manga, selectedCategories.filter { it.id != 0 })
+        } else {
+            changeMangaFavorite(manga)
+        }
+    }
+
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/ProgressItem.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/ProgressItem.kt
@ -17,7 +17,7 @@ class ProgressItem : AbstractFlexibleItem<ProgressItem.Holder>() {
    var loadMore = true

    override fun getLayoutRes(): Int {
-        return R.layout.progress_item
+        return R.layout.catalogue_progress_item
    }

    override fun createViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, inflater: LayoutInflater, parent: ViewGroup): Holder {
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/filter/SelectItem.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/filter/SelectItem.kt
@ -30,7 +30,7 @@ open class SelectItem(val filter: Filter.Select<*>) : AbstractFlexibleItem<Selec
        spinner.prompt = filter.name
        spinner.adapter = ArrayAdapter<Any>(holder.itemView.context,
                android.R.layout.simple_spinner_item, filter.values).apply {
-            setDropDownViewResource(R.layout.spinner_item)
+            setDropDownViewResource(R.layout.common_spinner_item)
        }
        spinner.onItemSelectedListener = IgnoreFirstSpinnerListener { position ->
            filter.state = position
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryActivity.kt
@ -1,265 +0,0 @@
-package eu.kanade.tachiyomi.ui.category
-
-import android.content.Context
-import android.content.Intent
-import android.os.Bundle
-import android.support.v7.view.ActionMode
-import android.support.v7.widget.LinearLayoutManager
-import android.support.v7.widget.RecyclerView
-import android.view.Menu
-import android.view.MenuItem
-import android.view.View
-import com.afollestad.materialdialogs.MaterialDialog
-import eu.davidea.flexibleadapter.FlexibleAdapter
-import eu.davidea.flexibleadapter.helpers.UndoHelper
-import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.data.database.models.Category
-import eu.kanade.tachiyomi.ui.base.activity.BaseRxActivity
-import kotlinx.android.synthetic.main.activity_edit_categories.*
-import kotlinx.android.synthetic.main.toolbar.*
-import nucleus.factory.RequiresPresenter
-
-
-/**
- * Activity that shows categories.
- * Uses R.layout.activity_edit_categories.
- * UI related actions should be called from here.
- */
-@RequiresPresenter(CategoryPresenter::class)
-class CategoryActivity :
-        BaseRxActivity<CategoryPresenter>(),
-        ActionMode.Callback,
-        FlexibleAdapter.OnItemClickListener,
-        FlexibleAdapter.OnItemLongClickListener,
-        UndoHelper.OnUndoListener {
-
-    /**
-     * Object used to show actionMode toolbar.
-     */
-    var actionMode: ActionMode? = null
-
-    /**
-     * Adapter containing category items.
-     */
-    private lateinit var adapter: CategoryAdapter
-
-    companion object {
-        /**
-         * Create new CategoryActivity intent.
-         *
-         * @param context context information.
-         */
-        fun newIntent(context: Context): Intent {
-            return Intent(context, CategoryActivity::class.java)
-        }
-    }
-
-    override fun onCreate(savedState: Bundle?) {
-        setAppTheme()
-        super.onCreate(savedState)
-
-        // Inflate activity_edit_categories.xml.
-        setContentView(R.layout.activity_edit_categories)
-
-        // Setup the toolbar.
-        setupToolbar(toolbar)
-
-        // Get new adapter.
-        adapter = CategoryAdapter(this)
-
-        // Create view and inject category items into view
-        recycler.layoutManager = LinearLayoutManager(this)
-        recycler.setHasFixedSize(true)
-        recycler.adapter = adapter
-
-        adapter.isHandleDragEnabled = true
-
-        // Create OnClickListener for creating new category
-        fab.setOnClickListener {
-            MaterialDialog.Builder(this)
-                    .title(R.string.action_add_category)
-                    .negativeText(android.R.string.cancel)
-                    .input(R.string.name, 0, false)
-                    { dialog, input -> presenter.createCategory(input.toString()) }
-                    .show()
-        }
-    }
-
-    /**
-     * Fill adapter with category items
-     *
-     * @param categories list containing categories
-     */
-    fun setCategories(categories: List<CategoryItem>) {
-        actionMode?.finish()
-        adapter.updateDataSet(categories.toMutableList())
-        val selected = categories.filter { it.isSelected }
-        if (selected.isNotEmpty()) {
-            selected.forEach { onItemLongClick(categories.indexOf(it)) }
-        }
-    }
-
-    /**
-     * Show MaterialDialog which let user change category name.
-     *
-     * @param category category that will be edited.
-     */
-    private fun editCategory(category: Category) {
-        MaterialDialog.Builder(this)
-                .title(R.string.action_rename_category)
-                .negativeText(android.R.string.cancel)
-                .input(getString(R.string.name), category.name, false)
-                { dialog, input -> presenter.renameCategory(category, input.toString()) }
-                .show()
-    }
-
-    /**
-     * Called when action mode item clicked.
-     *
-     * @param actionMode action mode toolbar.
-     * @param menuItem selected menu item.
-     *
-     * @return action mode item clicked exist status
-     */
-    override fun onActionItemClicked(actionMode: ActionMode, menuItem: MenuItem): Boolean {
-        when (menuItem.itemId) {
-            R.id.action_delete -> {
-                UndoHelper(adapter, this)
-                        .withAction(UndoHelper.ACTION_REMOVE, object : UndoHelper.OnActionListener {
-                            override fun onPreAction(): Boolean {
-                                adapter.selectedPositions.forEach { adapter.getItem(it).isSelected = false }
-                                return false
-                            }
-
-                            override fun onPostAction() {
-                                actionMode.finish()
-                            }
-                        })
-                        .remove(adapter.selectedPositions, recycler.parent as View,
-                                R.string.snack_categories_deleted, R.string.action_undo, 3000)
-            }
-            R.id.action_edit -> {
-                // Edit selected category
-                if (adapter.selectedItemCount == 1) {
-                    val position = adapter.selectedPositions.first()
-                    editCategory(adapter.getItem(position).category)
-                }
-            }
-            else -> return false
-        }
-        return true
-    }
-
-    /**
-     * Inflate menu when action mode selected.
-     *
-     * @param mode ActionMode object
-     * @param menu Menu object
-     *
-     * @return true
-     */
-    override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
-        // Inflate menu.
-        mode.menuInflater.inflate(R.menu.category_selection, menu)
-        // Enable adapter multi selection.
-        adapter.mode = FlexibleAdapter.MODE_MULTI
-        return true
-    }
-
-    /**
-     * Called each time the action mode is shown.
-     * Always called after onCreateActionMode
-     *
-     * @return false
-     */
-    override fun onPrepareActionMode(actionMode: ActionMode, menu: Menu): Boolean {
-        val count = adapter.selectedItemCount
-        actionMode.title = getString(R.string.label_selected, count)
-
-        // Show edit button only when one item is selected
-        val editItem = actionMode.menu.findItem(R.id.action_edit)
-        editItem.isVisible = count == 1
-        return true
-    }
-
-    /**
-     * Called when action mode destroyed.
-     *
-     * @param mode ActionMode object.
-     */
-    override fun onDestroyActionMode(mode: ActionMode?) {
-        // Reset adapter to single selection
-        adapter.mode = FlexibleAdapter.MODE_IDLE
-        adapter.clearSelection()
-        actionMode = null
-    }
-
-    /**
-     * Called when item in list is clicked.
-     *
-     * @param position position of clicked item.
-     */
-    override fun onItemClick(position: Int): Boolean {
-        // Check if action mode is initialized and selected item exist.
-        if (actionMode != null && position != RecyclerView.NO_POSITION) {
-            toggleSelection(position)
-            return true
-        } else {
-            return false
-        }
-    }
-
-    /**
-     * Called when item long clicked
-     *
-     * @param position position of clicked item.
-     */
-    override fun onItemLongClick(position: Int) {
-        // Check if action mode is initialized.
-        if (actionMode == null) {
-            // Initialize action mode
-            actionMode = startSupportActionMode(this)
-        }
-
-        // Set item as selected
-        toggleSelection(position)
-    }
-
-    /**
-     * Toggle the selection state of an item.
-     * If the item was the last one in the selection and is unselected, the ActionMode is finished.
-     */
-    private fun toggleSelection(position: Int) {
-        //Mark the position selected
-        adapter.toggleSelection(position)
-
-        if (adapter.selectedItemCount == 0) {
-            actionMode?.finish()
-        } else {
-            actionMode?.invalidate()
-        }
-    }
-
-    /**
-     * Called when an item is released from a drag.
-     */
-    fun onItemReleased() {
-        val categories = (0..adapter.itemCount-1).map { adapter.getItem(it).category }
-        presenter.reorderCategories(categories)
-    }
-
-    /**
-     * Called when the undo action is clicked in the snackbar.
-     */
-    override fun onUndoConfirmed(action: Int) {
-        adapter.restoreDeletedItems()
-    }
-
-    /**
-     * Called when the time to restore the items expires.
-     */
-    override fun onDeleteConfirmed(action: Int) {
-        presenter.deleteCategories(adapter.deletedItems.map { it.category })
-    }
-
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryAdapter.kt
@ -3,31 +3,48 @@ package eu.kanade.tachiyomi.ui.category
 import eu.davidea.flexibleadapter.FlexibleAdapter

 /**
- * Adapter of CategoryHolder.
- * Connection between Activity and Holder
- * Holder updates should be called from here.
+ * Custom adapter for categories.
 *
- * @param activity activity that created adapter
- * @constructor Creates a CategoryAdapter object
+ * @param controller The containing controller.
 */
-class CategoryAdapter(private val activity: CategoryActivity) :
-        FlexibleAdapter<CategoryItem>(null, activity, true) {
+class CategoryAdapter(controller: CategoryController) :
+        FlexibleAdapter<CategoryItem>(null, controller, true) {

    /**
-     * Called when item is released.
+     * Listener called when an item of the list is released.
     */
-    fun onItemReleased() {
-        activity.onItemReleased()
-    }
+    val onItemReleaseListener: OnItemReleaseListener = controller

+    /**
+     * Clears the active selections from the list and the model.
+     */
    override fun clearSelection() {
        super.clearSelection()
-        (0..itemCount-1).forEach { getItem(it).isSelected = false }
+        (0 until itemCount).forEach { getItem(it).isSelected = false }
    }

+    /**
+     * Clears the active selections from the model.
+     */
+    fun clearModelSelection() {
+        selectedPositions.forEach { getItem(it).isSelected = false }
+    }
+
+    /**
+     * Toggles the selection of the given position.
+     *
+     * @param position The position to toggle.
+     */
    override fun toggleSelection(position: Int) {
        super.toggleSelection(position)
        getItem(position).isSelected = isSelected(position)
    }

+    interface OnItemReleaseListener {
+        /**
+         * Called when an item of the list is released.
+         */
+        fun onItemReleased(position: Int)
+    }
+
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryController.kt
@ -0,0 +1,321 @@
+package eu.kanade.tachiyomi.ui.category
+
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.support.v7.view.ActionMode
+import android.support.v7.widget.LinearLayoutManager
+import android.support.v7.widget.RecyclerView
+import android.view.*
+import com.jakewharton.rxbinding.view.clicks
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.ui.base.controller.NucleusController
+import eu.kanade.tachiyomi.util.toast
+import eu.kanade.tachiyomi.widget.UndoHelper
+import kotlinx.android.synthetic.main.categories_controller.view.*
+
+/**
+ * Controller to manage the categories for the users' library.
+ */
+class CategoryController : NucleusController<CategoryPresenter>(),
+        ActionMode.Callback,
+        FlexibleAdapter.OnItemClickListener,
+        FlexibleAdapter.OnItemLongClickListener,
+        CategoryAdapter.OnItemReleaseListener,
+        CategoryCreateDialog.Listener,
+        CategoryRenameDialog.Listener,
+        UndoHelper.OnUndoListener {
+
+    /**
+     * Object used to show ActionMode toolbar.
+     */
+    private var actionMode: ActionMode? = null
+
+    /**
+     * Adapter containing category items.
+     */
+    private var adapter: CategoryAdapter? = null
+
+    /**
+     * Undo helper for deleting categories.
+     */
+    private var undoHelper: UndoHelper? = null
+
+    /**
+     * Creates the presenter for this controller. Not to be manually called.
+     */
+    override fun createPresenter() = CategoryPresenter()
+
+    /**
+     * Returns the toolbar title to show when this controller is attached.
+     */
+    override fun getTitle(): String? {
+        return resources?.getString(R.string.action_edit_categories)
+    }
+
+    /**
+     * Returns the view of this controller.
+     *
+     * @param inflater The layout inflater to create the view from XML.
+     * @param container The parent view for this one.
+     */
+    override fun inflateView(inflater: LayoutInflater, container: ViewGroup): View {
+        return inflater.inflate(R.layout.categories_controller, container, false)
+    }
+
+    /**
+     * Called after view inflation. Used to initialize the view.
+     *
+     * @param view The view of this controller.
+     * @param savedViewState The saved state of the view.
+     */
+    override fun onViewCreated(view: View, savedViewState: Bundle?) {
+        super.onViewCreated(view, savedViewState)
+
+        with(view) {
+            adapter = CategoryAdapter(this@CategoryController)
+            recycler.layoutManager = LinearLayoutManager(context)
+            recycler.setHasFixedSize(true)
+            recycler.adapter = adapter
+            adapter?.isHandleDragEnabled = true
+
+            fab.clicks().subscribeUntilDestroy {
+                CategoryCreateDialog(this@CategoryController).showDialog(router, null)
+            }
+        }
+    }
+
+    /**
+     * Called when the view is being destroyed. Used to release references and remove callbacks.
+     *
+     * @param view The view of this controller.
+     */
+    override fun onDestroyView(view: View) {
+        super.onDestroyView(view)
+        undoHelper?.dismissNow() // confirm categories deletion if required
+        undoHelper = null
+        actionMode = null
+        adapter = null
+    }
+
+    /**
+     * Called from the presenter when the categories are updated.
+     *
+     * @param categories The new list of categories to display.
+     */
+    fun setCategories(categories: List<CategoryItem>) {
+        actionMode?.finish()
+        adapter?.updateDataSet(categories.toMutableList())
+        val selected = categories.filter { it.isSelected }
+        if (selected.isNotEmpty()) {
+            selected.forEach { onItemLongClick(categories.indexOf(it)) }
+        }
+    }
+
+    /**
+     * Called when action mode is first created. The menu supplied will be used to generate action
+     * buttons for the action mode.
+     *
+     * @param mode ActionMode being created.
+     * @param menu Menu used to populate action buttons.
+     * @return true if the action mode should be created, false if entering this mode should be
+     *              aborted.
+     */
+    override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+        // Inflate menu.
+        mode.menuInflater.inflate(R.menu.category_selection, menu)
+        // Enable adapter multi selection.
+        adapter?.mode = FlexibleAdapter.MODE_MULTI
+        return true
+    }
+
+    /**
+     * Called to refresh an action mode's action menu whenever it is invalidated.
+     *
+     * @param mode ActionMode being prepared.
+     * @param menu Menu used to populate action buttons.
+     * @return true if the menu or action mode was updated, false otherwise.
+     */
+    override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
+        val adapter = adapter ?: return false
+        val count = adapter.selectedItemCount
+        mode.title = resources?.getString(R.string.label_selected, count)
+
+        // Show edit button only when one item is selected
+        val editItem = mode.menu.findItem(R.id.action_edit)
+        editItem.isVisible = count == 1
+        return true
+    }
+
+    /**
+     * Called to report a user click on an action button.
+     *
+     * @param mode The current ActionMode.
+     * @param item The item that was clicked.
+     * @return true if this callback handled the event, false if the standard MenuItem invocation
+     *              should continue.
+     */
+    override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
+        val adapter = adapter ?: return false
+
+        when (item.itemId) {
+            R.id.action_delete -> {
+                undoHelper = UndoHelper(adapter, this).apply {
+                    withAction(UndoHelper.ACTION_REMOVE, object : UndoHelper.OnActionListener {
+                        override fun onPreAction(): Boolean {
+                            adapter.clearModelSelection()
+                            return false
+                        }
+
+                        override fun onPostAction() {
+                            mode.finish()
+                        }
+                    })
+                    remove(adapter.selectedPositions, view!!,
+                            R.string.snack_categories_deleted, R.string.action_undo, 3000)
+                }
+            }
+            R.id.action_edit -> {
+                // Edit selected category
+                if (adapter.selectedItemCount == 1) {
+                    val position = adapter.selectedPositions.first()
+                    editCategory(adapter.getItem(position).category)
+                }
+            }
+            else -> return false
+        }
+        return true
+    }
+
+    /**
+     * Called when an action mode is about to be exited and destroyed.
+     *
+     * @param mode The current ActionMode being destroyed.
+     */
+    override fun onDestroyActionMode(mode: ActionMode) {
+        // Reset adapter to single selection
+        adapter?.mode = FlexibleAdapter.MODE_IDLE
+        adapter?.clearSelection()
+        actionMode = null
+    }
+
+    /**
+     * Called when an item in the list is clicked.
+     *
+     * @param position The position of the clicked item.
+     * @return true if this click should enable selection mode.
+     */
+    override fun onItemClick(position: Int): Boolean {
+        // Check if action mode is initialized and selected item exist.
+        if (actionMode != null && position != RecyclerView.NO_POSITION) {
+            toggleSelection(position)
+            return true
+        } else {
+            return false
+        }
+    }
+
+    /**
+     * Called when an item in the list is long clicked.
+     *
+     * @param position The position of the clicked item.
+     */
+    override fun onItemLongClick(position: Int) {
+        val activity = activity as? AppCompatActivity ?: return
+
+        // Check if action mode is initialized.
+        if (actionMode == null) {
+            // Initialize action mode
+            actionMode = activity.startSupportActionMode(this)
+        }
+
+        // Set item as selected
+        toggleSelection(position)
+    }
+
+    /**
+     * Toggle the selection state of an item.
+     * If the item was the last one in the selection and is unselected, the ActionMode is finished.
+     *
+     * @param position The position of the item to toggle.
+     */
+    private fun toggleSelection(position: Int) {
+        val adapter = adapter ?: return
+
+        //Mark the position selected
+        adapter.toggleSelection(position)
+
+        if (adapter.selectedItemCount == 0) {
+            actionMode?.finish()
+        } else {
+            actionMode?.invalidate()
+        }
+    }
+
+    /**
+     * Called when an item is released from a drag.
+     *
+     * @param position The position of the released item.
+     */
+    override fun onItemReleased(position: Int) {
+        val adapter = adapter ?: return
+        val categories = (0..adapter.itemCount-1).map { adapter.getItem(it).category }
+        presenter.reorderCategories(categories)
+    }
+
+    /**
+     * Called when the undo action is clicked in the snackbar.
+     *
+     * @param action The action performed.
+     */
+    override fun onUndoConfirmed(action: Int) {
+        adapter?.restoreDeletedItems()
+    }
+
+    /**
+     * Called when the time to restore the items expires.
+     *
+     * @param action The action performed.
+     */
+    override fun onDeleteConfirmed(action: Int) {
+        val adapter = adapter ?: return
+        presenter.deleteCategories(adapter.deletedItems.map { it.category })
+    }
+
+    /**
+     * Show a dialog to let the user change the category name.
+     *
+     * @param category The category to be edited.
+     */
+    private fun editCategory(category: Category) {
+        CategoryRenameDialog(this, category).showDialog(router)
+    }
+
+    /**
+     * Renames the given category with the given name.
+     *
+     * @param category The category to rename.
+     * @param name The new name of the category.
+     */
+    override fun renameCategory(category: Category, name: String) {
+        presenter.renameCategory(category, name)
+    }
+
+    /**
+     * Creates a new category with the given name.
+     *
+     * @param name The name of the new category.
+     */
+    override fun createCategory(name: String) {
+        presenter.createCategory(name)
+    }
+
+    /**
+     * Called from the presenter when a category with the given name already exists.
+     */
+    fun onCategoryExistsError() {
+        activity?.toast(R.string.error_category_exists)
+    }
+
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryCreateDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryCreateDialog.kt
@ -0,0 +1,47 @@
+package eu.kanade.tachiyomi.ui.category
+
+import android.app.Dialog
+import android.os.Bundle
+import com.afollestad.materialdialogs.MaterialDialog
+import com.bluelinelabs.conductor.Controller
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.ui.base.controller.DialogController
+
+/**
+ * Dialog to create a new category for the library.
+ */
+class CategoryCreateDialog<T>(bundle: Bundle? = null) : DialogController(bundle)
+        where T : Controller, T : CategoryCreateDialog.Listener {
+
+    /**
+     * Name of the new category. Value updated with each input from the user.
+     */
+    private var currentName = ""
+
+    constructor(target: T) : this() {
+        targetController = target
+    }
+
+    /**
+     * Called when creating the dialog for this controller.
+     *
+     * @param savedViewState The saved state of this dialog.
+     * @return a new dialog instance.
+     */
+    override fun onCreateDialog(savedViewState: Bundle?): Dialog {
+        return MaterialDialog.Builder(activity!!)
+                .title(R.string.action_add_category)
+                .negativeText(android.R.string.cancel)
+                .alwaysCallInputCallback()
+                .input(resources?.getString(R.string.name), currentName, false, { _, input ->
+                    currentName = input.toString()
+                })
+                .onPositive { _, _ -> (targetController as? Listener)?.createCategory(currentName) }
+                .build()
+    }
+
+    interface Listener {
+        fun createCategory(name: String)
+    }
+
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryHolder.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryHolder.kt
@ -7,17 +7,13 @@ import com.amulyakhare.textdrawable.TextDrawable
 import com.amulyakhare.textdrawable.util.ColorGenerator
 import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.data.database.models.Category
-import kotlinx.android.synthetic.main.item_edit_categories.view.*
+import kotlinx.android.synthetic.main.categories_item.view.*

 /**
- * Holder that contains category item.
- * Uses R.layout.item_edit_categories.
- * UI related actions should be called from here.
+ * Holder used to display category items.
 *
- * @param view view of category item.
- * @param adapter adapter belonging to holder.
- *
- * @constructor Create CategoryHolder object
+ * @param view The view used by category items.
+ * @param adapter The adapter containing this holder.
 */
 class CategoryHolder(view: View, val adapter: CategoryAdapter) : FlexibleViewHolder(view, adapter) {

@ -32,9 +28,9 @@ class CategoryHolder(view: View, val adapter: CategoryAdapter) : FlexibleViewHol
    }

    /**
-     * Update category item values.
+     * Binds this holder with the given category.
     *
-     * @param category category of item.
+     * @param category The category to bind.
     */
    fun bind(category: Category) {
        // Set capitalized title.
@ -47,9 +43,9 @@ class CategoryHolder(view: View, val adapter: CategoryAdapter) : FlexibleViewHol
    }

    /**
-     * Returns circle letter image
+     * Returns circle letter image.
     *
-     * @param text first letter of string
+     * @param text The first letter of string.
     */
    private fun getRound(text: String): TextDrawable {
        val size = Math.min(itemView.image.width, itemView.image.height)
@ -63,9 +59,14 @@ class CategoryHolder(view: View, val adapter: CategoryAdapter) : FlexibleViewHol
                .buildRound(text, ColorGenerator.MATERIAL.getColor(text))
    }

+    /**
+     * Called when an item is released.
+     *
+     * @param position The position of the released item.
+     */
    override fun onItemReleased(position: Int) {
        super.onItemReleased(position)
-        adapter.onItemReleased()
+        adapter.onItemReleaseListener.onItemReleased(position)
    }

 }
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryItem.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryItem.kt
@ -8,29 +8,62 @@ import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Category
 import eu.kanade.tachiyomi.util.inflate

+/**
+ * Category item for a recycler view.
+ */
 class CategoryItem(val category: Category) : AbstractFlexibleItem<CategoryHolder>() {

+    /**
+     * Whether this item is currently selected.
+     */
    var isSelected = false

+    /**
+     * Returns the layout resource for this item.
+     */
    override fun getLayoutRes(): Int {
-        return R.layout.item_edit_categories
+        return R.layout.categories_item
    }

-    override fun createViewHolder(adapter: FlexibleAdapter<*>, inflater: LayoutInflater,
+    /**
+     * Returns a new view holder for this item.
+     *
+     * @param adapter The adapter of this item.
+     * @param inflater The layout inflater for XML inflation.
+     * @param parent The container view.
+     */
+    override fun createViewHolder(adapter: FlexibleAdapter<*>,
+                                  inflater: LayoutInflater,
                                  parent: ViewGroup): CategoryHolder {
+
        return CategoryHolder(parent.inflate(layoutRes), adapter as CategoryAdapter)
    }

-    override fun bindViewHolder(adapter: FlexibleAdapter<*>, holder: CategoryHolder,
-                                position: Int, payloads: List<Any?>?) {
+    /**
+     * Binds the given view holder with this item.
+     *
+     * @param adapter The adapter of this item.
+     * @param holder The holder to bind.
+     * @param position The position of this item in the adapter.
+     * @param payloads List of partial changes.
+     */
+    override fun bindViewHolder(adapter: FlexibleAdapter<*>,
+                                holder: CategoryHolder,
+                                position: Int,
+                                payloads: List<Any?>?) {
+
        holder.bind(category)
    }

+    /**
+     * Returns true if this item is draggable.
+     */
    override fun isDraggable(): Boolean {
        return true
    }

    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
        if (other is CategoryItem) {
            return category.id == other.category.id
        }
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
len	fab7967018	Release 0.6.0	2017-07-08 18:07:43 +02:00
len	bb40a4d6b8	Dependency updates. Enable new translations. Minor fixes	2017-07-08 16:44:01 +02:00
len	90d27147e6	Fix gradle build warnings. Remove unused strings	2017-07-05 17:21:27 +02:00
Jozef Hollý	634247c590	New translation system (#844 ) * Change translation part * Translated using Weblate (Russian) Currently translated at 99.1% (355 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/ru/ * Added translation using Weblate (Dutch) * Translated using Weblate (Spanish) Currently translated at 67.8% (243 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Spanish) Currently translated at 68.1% (244 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Spanish) Currently translated at 68.4% (245 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Spanish) Currently translated at 68.4% (245 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Spanish) Currently translated at 68.7% (246 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Spanish) Currently translated at 68.7% (246 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Dutch) Currently translated at 48.6% (174 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (Dutch) Currently translated at 48.8% (175 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (Spanish) Currently translated at 68.9% (247 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Spanish) Currently translated at 69.8% (250 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Spanish) Currently translated at 71.2% (255 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Dutch) Currently translated at 55.5% (199 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (Spanish) Currently translated at 99.7% (357 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/es/ * Translated using Weblate (Dutch) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (Dutch) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (Dutch) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (Italian) Currently translated at 86.3% (309 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/it/ * Translated using Weblate (Italian) Currently translated at 86.8% (311 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/it/ * Translated using Weblate (Italian) Currently translated at 87.4% (313 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/it/ * Translated using Weblate (Italian) Currently translated at 87.9% (315 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/it/ * Translated using Weblate (Italian) Currently translated at 92.4% (331 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/it/ * Translated using Weblate (Dutch) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (Dutch) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Added translation using Weblate (Latvian) * Translated using Weblate (Dutch) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (Dutch) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (Italian) Currently translated at 98.6% (353 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/it/ * Translated using Weblate (Bulgarian) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/bg/ * Translated using Weblate (Bulgarian) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/bg/ * Translated using Weblate (Dutch) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Added translation using Weblate (Arabic) * Translated using Weblate (Latvian) Currently translated at 25.1% (90 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/lv/ * Translated using Weblate (Dutch) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/nl/ * Translated using Weblate (French) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/fr/ * Translated using Weblate (French) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/fr/ * Added translation using Weblate (Korean) * Translated using Weblate (Korean) Currently translated at 1.1% (4 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/ko/ * Translated using Weblate (Korean) Currently translated at 4.1% (15 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/ko/ 트래킹? 동기화? 추적? * Translated using Weblate (Korean) Currently translated at 14.2% (51 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/ko/ * Added translation using Weblate (Portuguese (Brazil)) * Translated using Weblate (Portuguese (Brazil)) Currently translated at 72.9% (261 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/pt_BR/ * Translated using Weblate (Portuguese (Brazil)) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/pt_BR/ * Translated using Weblate (Portuguese (Brazil)) Currently translated at 100.0% (358 of 358 strings) Translation: Tachiyomi/Main Translate-URL: http://weblate.j2ghz.com/projects/tachiyomi/main/pt_BR/	2017-07-05 17:09:27 +02:00
len	fd8f7ea693	Fix #880 . Downgrade conductor to 2.1.2 for now	2017-07-05 14:19:58 +02:00
len	5eeb497f2b	Fallback batoto urls to http (a library update took ages). Kotlin update to 1.1.3	2017-07-04 15:50:53 +02:00
ddmgy	505e642691	Fix issues with Batoto; some links now use https rather than http, so parsing was affected. (#873 )	2017-07-02 20:35:07 +02:00
len	74a7e2a17e	Fix local source not working if english was disabled. Closes #848	2017-06-17 12:46:34 +02:00
len	5fec956ce6	Main activity now uses single task. Fixes #850 . Actually use new support library	2017-06-17 12:34:46 +02:00
len	1794782323	Add option to invert volume keys. Closes #834	2017-06-11 11:36:12 +02:00
len	0210ee8747	Fix #819 . Update support lib	2017-06-10 16:49:40 +02:00
len	ca412832ef	Library notification now opens recent updates. Closes #808	2017-06-04 18:56:24 +02:00
Carlos	1089c25b8f	allow sorting by total chapters for library view (#811 ) * allow sorting by total chapters for library view * allow sorting by total chapters for library view * Changed to remove query per manga.	2017-05-31 21:50:21 +02:00
_Pavka	e85841784c	Russian strings update (#820 ) * Russian strings update * Fix russian string * Russian string. Резеврное копирование -> бэкап	2017-05-29 08:00:27 +02:00
inorichi	ca2236958a	Reorganize layouts by feature	2017-05-25 12:16:58 +02:00
inorichi	c7686323b7	Remove activity mixin class	2017-05-24 14:00:26 +02:00
inorichi	73d1a1a05e	Fix backup issue. Closes #806	2017-05-24 11:15:40 +02:00
len	211f7b591b	Dependency updates. OkHttp nullability changes	2017-05-23 20:39:02 +02:00
len	72ea256906	Downloads with conductor. Remove flexible adapter 4 dependency and unused classes.	2017-05-23 20:03:16 +02:00
inorichi	f521622d4d	Minor changes to tabs animator	2017-05-23 14:28:07 +02:00
inorichi	dc5283ce9a	Use an object animator for the tabs	2017-05-22 11:28:41 +02:00
len	256a4197c9	Replace changelog dialog with controller, move migration logic to a separate class	2017-05-21 13:42:06 +02:00
len	a5a12f8b3a	Add landscape layout for manga info. Fix portrait layout image paddings when the tab layout was expanded	2017-05-20 14:56:31 +02:00
len	bbe180ecd1	Improve tab layout animation. Fixes #800 and #801	2017-05-20 12:15:44 +02:00
inorichi	67678cd49e	Add an option to refresh all tracking metadata	2017-05-17 13:36:42 +02:00
inorichi	097d4fe34c	Fix memory leak	2017-05-16 14:44:18 +02:00
inorichi	5914346ace	Remove unused classes and arrays resources	2017-05-16 14:11:23 +02:00
Bram van de Kerkhof	062788f222	Fixed tracking cardview + readded AMOLED theme. (#798 ) * Fixed cardview margin for sources * Added AMOLED again * changed padding to margin	2017-05-16 10:18:46 +02:00
inorichi	55be9b9ca5	Fix settings crashes before Lollipop	2017-05-15 16:32:53 +02:00
len	0da2f91771	Info shows last chapter instead of chapter count. Resolves #765	2017-05-14 19:55:48 +02:00
inorichi	ff190e02d4	Preferences with conductor (#792 ) * Settings with conductor WIP * Add downloads preference controller. Implement source/track login * Improve settings controllers * Backup settings controller * Delete preferences xml * Remove keys from xml * PreferenceKeys is now an object * Remove now unused dependency	2017-05-14 00:45:14 +02:00
inorichi	29fd5747eb	Recent chapters with constraint layout	2017-05-08 13:06:40 +02:00
Carlos	fa8f5bc0d8	Add images and 'view chapters' to library updates (#785 ) * added option to open manga directly from library update added covers for manga in library update added ability to click covers to open manga directly from library update * Removed 3 dot option to open manga Adjusted covers to circles and material standard for recent chapter * fixed potential null pointer on cover click * adjusted circle imageview size for recently read	2017-05-08 09:22:49 +02:00
Bram van de Kerkhof	2118434823	Initial AMOLED theme + some CardView fixes (#787 ) * Initial AMOLED theme + some CardView fixes * small fix	2017-05-07 12:36:25 +02:00
inorichi	2eeac0bf8b	UI with Conductor (#784 )	2017-05-06 15:49:39 +02:00
len	89b293fecd	Kitsu: remove limit from query	2017-05-05 16:36:54 +02:00
len	3f758d5981	Kitsu: replace media_id with manga_id	2017-05-01 00:29:08 +02:00
Carlos	e838bb43d2	Deleting categories hides manga until switch from and to library #686 (#769 ) * Fixed bug 686 https://github.com/inorichi/tachiyomi/issues/686 * Fixed bug 686 https://github.com/inorichi/tachiyomi/issues/686 * undo previous changes to resubscribe add table to mangaQueries to update on table category change * cleaned up formatting	2017-04-27 20:16:05 +02:00
Andy Bao	b7b83305b2	Allow multiple sources in each extension source apk (#761 ) * Allow multiple sources in each extension source apk Minor code cleanup * Add runtime defined sources functionality * Undo extensions library major version number bump	2017-04-27 20:15:55 +02:00
len	8df3080e0d	Pass backup uri as parcelable to restore service	2017-04-25 16:29:39 +02:00
len	f88794c752	Keep models from source package	2017-04-21 00:19:10 +02:00
len	cc9e2cee1f	Fix webtoon scroll jumps. Closes #751	2017-04-17 20:01:07 +02:00
len	91cb892c74	Release 0.5.2	2017-04-14 12:46:58 +02:00
len	a26f908370	Dependency updates	2017-04-09 18:25:05 +02:00
len	4d14f56fa8	Improve webtoon reader scroll up	2017-04-09 18:24:52 +02:00
lifeweaver	d9a2255be9	Retain last read page when using the webtoon mode (#738 ) * Retain last read page when using the webtoon mode, see issue #453 * #738 inorichi's request change to webtoonreader pull request * #738 per inorichi recycler could be null at the point scrollToLastPageRead was called, moved to below the check in the view had been initialized.	2017-04-09 16:01:07 +02:00
len	5e3d71c6c5	Fix shortcuts	2017-04-09 15:53:47 +02:00
len	619d94bf36	Kitsu: use new rating system. Fixes #743	2017-04-09 13:56:52 +02:00
Bram van de Kerkhof	6069659e0f	Small fixes (#740 )	2017-04-07 21:17:21 +02:00
lifeweaver	f6a79bde6f	Add manga straight into a category from catalogues (#737 ) * Add feature mention in issue #625	2017-04-07 20:39:09 +02:00
len	bb9e230b35	Fix #708	2017-04-07 20:32:22 +02:00
len	bc9417e16b	Notify licensed content in mangahere	2017-04-06 20:23:03 +02:00
len	a4313d388d	Fix activity leaks in backup, restore dialogs and properly handle db transactions	2017-04-06 17:26:24 +02:00
Bram van de Kerkhof	4ebb3a894d	Added round icon + added shortcuts (#732 ) * Added round icon + added shortcuts * Moved values to companion	2017-04-04 17:42:39 +02:00
Bram van de Kerkhof	0642889b64	Rewrote Backup (#650 ) * Rewrote Backup * Save automatic backups with datetime * Minor improvements * Remove suggested directories for backup and hardcoded strings. Rename JSON -> Backup * Bugfix * Fix tests * Run restore inside a transaction, use external cache dir for log and other minor changes	2017-04-04 17:42:17 +02:00
len	3094d084d6	Library notification: handle only one update as a special case	2017-04-01 12:05:09 +02:00
len	f9fec74ffd	Add short description to library update notification	2017-03-30 20:02:48 +02:00
inorichi	8ef3ab0d49	Cancel library progress notification after posting the result	2017-03-29 09:17:53 +02:00
len	e9a6f8ef46	Update app icon with shadow	2017-03-26 11:42:32 +02:00
len	68724752f8	Separate some changes unrelated to backup from PR	2017-03-26 11:26:10 +02:00
len	de8fa09366	Keep new chapters notification across updates	2017-03-25 22:00:55 +01:00
len	e619870eec	Fix #716	2017-03-20 20:34:26 +01:00