Replace more Kotlin synthetics

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/BrowseSourceController.kt

@@ -491,13 +491,13 @@ open class BrowseSourceController(bundle: Bundle) :
      * @param manga the manga to find.
      * @return the holder of the manga or null if it's not bound.
      */
-    private fun getHolder(manga: Manga): SourceHolder? {
+    private fun getHolder(manga: Manga): SourceHolder<*>? {
         val adapter = adapter ?: return null
 
         adapter.allBoundViewHolders.forEach { holder ->
             val item = adapter.getItem(holder.bindingAdapterPosition) as? SourceItem
             if (item != null && item.manga.id!! == manga.id!!) {
-                return holder as SourceHolder
+                return holder as SourceHolder<*>
             }
         }
 

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/SourceComfortableGridHolder.kt

@@ -18,9 +18,9 @@ import eu.kanade.tachiyomi.widget.StateImageViewTarget
  * @constructor creates a new catalogue holder.
  */
 class SourceComfortableGridHolder(private val view: View, private val adapter: FlexibleAdapter<*>) :
-    SourceGridHolder(view, adapter) {
+    SourceHolder<SourceComfortableGridItemBinding>(view, adapter) {
 
-    private val binding = SourceComfortableGridItemBinding.bind(view)
+    override val binding = SourceComfortableGridItemBinding.bind(view)
 
     /**
      * Method called from [CatalogueAdapter.onBindViewHolder]. It updates the data for this

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/SourceGridHolder.kt

@@ -18,9 +18,9 @@ import eu.kanade.tachiyomi.widget.StateImageViewTarget
  * @constructor creates a new catalogue holder.
  */
 open class SourceGridHolder(private val view: View, private val adapter: FlexibleAdapter<*>) :
-    SourceHolder(view, adapter) {
+    SourceHolder<SourceComfortableGridItemBinding>(view, adapter) {
 
-    private val binding = SourceComfortableGridItemBinding.bind(view)
+    override val binding = SourceComfortableGridItemBinding.bind(view)
 
     /**
      * Method called from [CatalogueAdapter.onBindViewHolder]. It updates the data for this

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/SourceHolder.kt

@@ -1,6 +1,7 @@
 package eu.kanade.tachiyomi.ui.browse.source.browse
 
 import android.view.View
+import androidx.viewbinding.ViewBinding
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.data.database.models.Manga
@@ -11,9 +12,11 @@ import eu.kanade.tachiyomi.data.database.models.Manga
  * @param view the inflated view for this holder.
  * @param adapter the adapter handling this holder.
  */
-abstract class SourceHolder(view: View, adapter: FlexibleAdapter<*>) :
+abstract class SourceHolder<VB : ViewBinding>(view: View, adapter: FlexibleAdapter<*>) :
     FlexibleViewHolder(view, adapter) {
 
+    abstract val binding: VB
+
     /**
      * Method called from [CatalogueAdapter.onBindViewHolder]. It updates the data for this
      * holder with the given manga.

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/SourceItem.kt

@@ -13,12 +13,12 @@ import eu.davidea.flexibleadapter.items.IFlexible
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.preference.PreferenceValues.DisplayMode
+import eu.kanade.tachiyomi.databinding.SourceComfortableGridItemBinding
+import eu.kanade.tachiyomi.databinding.SourceCompactGridItemBinding
 import eu.kanade.tachiyomi.widget.AutofitRecyclerView
-import kotlinx.android.synthetic.main.source_compact_grid_item.view.card
-import kotlinx.android.synthetic.main.source_compact_grid_item.view.gradient
 
 class SourceItem(val manga: Manga, private val displayMode: Preference<DisplayMode>) :
-    AbstractFlexibleItem<SourceHolder>() {
+    AbstractFlexibleItem<SourceHolder<*>>() {
 
     override fun getLayoutRes(): Int {
         return when (displayMode.get()) {
@@ -31,17 +31,18 @@ class SourceItem(val manga: Manga, private val displayMode: Preference<DisplayMo
     override fun createViewHolder(
         view: View,
         adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>
-    ): SourceHolder {
+    ): SourceHolder<*> {
         return when (displayMode.get()) {
             DisplayMode.COMPACT_GRID -> {
+                val binding = SourceCompactGridItemBinding.bind(view)
                 val parent = adapter.recyclerView as AutofitRecyclerView
                 val coverHeight = parent.itemWidth / 3 * 4
                 view.apply {
-                    card.layoutParams = FrameLayout.LayoutParams(
+                    binding.card.layoutParams = FrameLayout.LayoutParams(
                         MATCH_PARENT,
                         coverHeight
                     )
-                    gradient.layoutParams = FrameLayout.LayoutParams(
+                    binding.gradient.layoutParams = FrameLayout.LayoutParams(
                         MATCH_PARENT,
                         coverHeight / 2,
                         Gravity.BOTTOM
@@ -50,10 +51,11 @@ class SourceItem(val manga: Manga, private val displayMode: Preference<DisplayMo
                 SourceGridHolder(view, adapter)
             }
             DisplayMode.COMFORTABLE_GRID -> {
+                val binding = SourceComfortableGridItemBinding.bind(view)
                 val parent = adapter.recyclerView as AutofitRecyclerView
                 val coverHeight = parent.itemWidth / 3 * 4
                 view.apply {
-                    card.layoutParams = ConstraintLayout.LayoutParams(
+                    binding.card.layoutParams = ConstraintLayout.LayoutParams(
                         MATCH_PARENT,
                         coverHeight
                     )
@@ -68,7 +70,7 @@ class SourceItem(val manga: Manga, private val displayMode: Preference<DisplayMo
 
     override fun bindViewHolder(
         adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>,
-        holder: SourceHolder,
+        holder: SourceHolder<*>,
         position: Int,
         payloads: List<Any?>?
     ) {

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/SourceListHolder.kt

@@ -22,9 +22,9 @@ import eu.kanade.tachiyomi.util.system.getResourceColor
  * @constructor creates a new catalogue holder.
  */
 class SourceListHolder(private val view: View, adapter: FlexibleAdapter<*>) :
-    SourceHolder(view, adapter) {
+    SourceHolder<SourceListItemBinding>(view, adapter) {
 
-    private val binding = SourceListItemBinding.bind(view)
+    override val binding = SourceListItemBinding.bind(view)
 
     private val favoriteColor = view.context.getResourceColor(R.attr.colorOnSurface, 0.38f)
     private val unfavoriteColor = view.context.getResourceColor(R.attr.colorOnSurface)

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryView.kt

@@ -183,7 +183,7 @@ class LibraryCategoryView @JvmOverloads constructor(context: Context, attrs: Att
                 val position = adapter.indexOf(manga)
                 if (position != -1 && !adapter.isSelected(position)) {
                     adapter.toggleSelection(position)
-                    (recycler.findViewHolderForItemId(manga.id!!) as? LibraryHolder)?.toggleActivation()
+                    (recycler.findViewHolderForItemId(manga.id!!) as? LibraryHolder<*>)?.toggleActivation()
                 }
             }
         }
@@ -227,7 +227,7 @@ class LibraryCategoryView @JvmOverloads constructor(context: Context, attrs: Att
         val position = adapter.indexOf(manga)
         if (position != -1) {
             adapter.toggleSelection(position)
-            (recycler.findViewHolderForItemId(manga.id!!) as? LibraryHolder)?.toggleActivation()
+            (recycler.findViewHolderForItemId(manga.id!!) as? LibraryHolder<*>)?.toggleActivation()
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryComfortableGridHolder.kt

@@ -23,9 +23,9 @@ import eu.kanade.tachiyomi.util.isLocal
 class LibraryComfortableGridHolder(
     private val view: View,
     adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>
-) : LibraryCompactGridHolder(view, adapter) {
+) : LibraryHolder<SourceComfortableGridItemBinding>(view, adapter) {
 
-    private val binding = SourceComfortableGridItemBinding.bind(view)
+    override val binding = SourceComfortableGridItemBinding.bind(view)
 
     /**
      * Method called from [LibraryCategoryAdapter.onBindViewHolder]. It updates the data for this

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCompactGridHolder.kt

@@ -21,9 +21,9 @@ import eu.kanade.tachiyomi.util.isLocal
 open class LibraryCompactGridHolder(
     private val view: View,
     private val adapter: FlexibleAdapter<*>
-) : LibraryHolder(view, adapter) {
+) : LibraryHolder<SourceCompactGridItemBinding>(view, adapter) {
 
-    private val binding = SourceCompactGridItemBinding.bind(view)
+    override val binding = SourceCompactGridItemBinding.bind(view)
 
     /**
      * Method called from [LibraryCategoryAdapter.onBindViewHolder]. It updates the data for this

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryHolder.kt

@@ -1,6 +1,7 @@
 package eu.kanade.tachiyomi.ui.library
 
 import android.view.View
+import androidx.viewbinding.ViewBinding
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.viewholders.FlexibleViewHolder
 
@@ -11,11 +12,13 @@ import eu.davidea.viewholders.FlexibleViewHolder
  * @param listener a listener to react to the single tap and long tap events.
  */
 
-abstract class LibraryHolder(
+abstract class LibraryHolder<VB : ViewBinding>(
     view: View,
     adapter: FlexibleAdapter<*>
 ) : FlexibleViewHolder(view, adapter) {
 
+    abstract val binding: VB
+
     /**
      * Method called from [LibraryCategoryAdapter.onBindViewHolder]. It updates the data for this
      * holder with the given manga.

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryItem.kt

@@ -14,15 +14,15 @@ import eu.davidea.flexibleadapter.items.IFlexible
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.LibraryManga
 import eu.kanade.tachiyomi.data.preference.PreferenceValues.DisplayMode
+import eu.kanade.tachiyomi.databinding.SourceComfortableGridItemBinding
+import eu.kanade.tachiyomi.databinding.SourceCompactGridItemBinding
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.widget.AutofitRecyclerView
-import kotlinx.android.synthetic.main.source_compact_grid_item.view.card
-import kotlinx.android.synthetic.main.source_compact_grid_item.view.gradient
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 
 class LibraryItem(val manga: LibraryManga, private val libraryDisplayMode: Preference<DisplayMode>) :
-    AbstractFlexibleItem<LibraryHolder>(), IFilterable<String> {
+    AbstractFlexibleItem<LibraryHolder<*>>(), IFilterable<String> {
 
     private val sourceManager: SourceManager = Injekt.get()
 
@@ -37,14 +37,15 @@ class LibraryItem(val manga: LibraryManga, private val libraryDisplayMode: Prefe
         }
     }
 
-    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>): LibraryHolder {
+    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>): LibraryHolder<*> {
         return when (libraryDisplayMode.get()) {
             DisplayMode.COMPACT_GRID -> {
+                val binding = SourceCompactGridItemBinding.bind(view)
                 val parent = adapter.recyclerView as AutofitRecyclerView
                 val coverHeight = parent.itemWidth / 3 * 4
                 view.apply {
-                    card.layoutParams = FrameLayout.LayoutParams(MATCH_PARENT, coverHeight)
+                    binding.card.layoutParams = FrameLayout.LayoutParams(MATCH_PARENT, coverHeight)
-                    gradient.layoutParams = FrameLayout.LayoutParams(
+                    binding.gradient.layoutParams = FrameLayout.LayoutParams(
                         MATCH_PARENT,
                         coverHeight / 2,
                         Gravity.BOTTOM
@@ -53,10 +54,11 @@ class LibraryItem(val manga: LibraryManga, private val libraryDisplayMode: Prefe
                 LibraryCompactGridHolder(view, adapter)
             }
             DisplayMode.COMFORTABLE_GRID -> {
+                val binding = SourceComfortableGridItemBinding.bind(view)
                 val parent = adapter.recyclerView as AutofitRecyclerView
                 val coverHeight = parent.itemWidth / 3 * 4
                 view.apply {
-                    card.layoutParams = ConstraintLayout.LayoutParams(
+                    binding.card.layoutParams = ConstraintLayout.LayoutParams(
                         MATCH_PARENT,
                         coverHeight
                     )
@@ -71,7 +73,7 @@ class LibraryItem(val manga: LibraryManga, private val libraryDisplayMode: Prefe
 
     override fun bindViewHolder(
         adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>,
-        holder: LibraryHolder,
+        holder: LibraryHolder<*>,
         position: Int,
         payloads: List<Any?>?
     ) {

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryListHolder.kt

@@ -22,13 +22,12 @@ import eu.kanade.tachiyomi.util.isLocal
  * @param listener a listener to react to single tap and long tap events.
  * @constructor creates a new library holder.
  */
-
 class LibraryListHolder(
     private val view: View,
     private val adapter: FlexibleAdapter<*>
-) : LibraryHolder(view, adapter) {
+) : LibraryHolder<SourceListItemBinding>(view, adapter) {
 
-    private val binding = SourceListItemBinding.bind(view)
+    override val binding = SourceListItemBinding.bind(view)
 
     /**
      * Method called from [LibraryCategoryAdapter.onBindViewHolder]. It updates the data for this

app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackSearchAdapter.kt

@@ -9,16 +9,8 @@ import com.bumptech.glide.load.engine.DiskCacheStrategy
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.glide.GlideApp
 import eu.kanade.tachiyomi.data.track.model.TrackSearch
+import eu.kanade.tachiyomi.databinding.TrackSearchItemBinding
 import eu.kanade.tachiyomi.util.view.inflate
-import kotlinx.android.synthetic.main.track_search_item.view.track_search_cover
-import kotlinx.android.synthetic.main.track_search_item.view.track_search_start
-import kotlinx.android.synthetic.main.track_search_item.view.track_search_start_result
-import kotlinx.android.synthetic.main.track_search_item.view.track_search_status
-import kotlinx.android.synthetic.main.track_search_item.view.track_search_status_result
-import kotlinx.android.synthetic.main.track_search_item.view.track_search_summary
-import kotlinx.android.synthetic.main.track_search_item.view.track_search_title
-import kotlinx.android.synthetic.main.track_search_item.view.track_search_type
-import kotlinx.android.synthetic.main.track_search_item.view.track_search_type_result
 
 class TrackSearchAdapter(context: Context) :
     ArrayAdapter<TrackSearch>(context, R.layout.track_search_item, mutableListOf<TrackSearch>()) {
@@ -49,37 +41,39 @@ class TrackSearchAdapter(context: Context) :
 
     class TrackSearchHolder(private val view: View) {
 
+        private val binding = TrackSearchItemBinding.bind(view)
+
         fun onSetValues(track: TrackSearch) {
-            view.track_search_title.text = track.title
+            binding.trackSearchTitle.text = track.title
-            view.track_search_summary.text = track.summary
+            binding.trackSearchSummary.text = track.summary
-            GlideApp.with(view.context).clear(view.track_search_cover)
+            GlideApp.with(view.context).clear(binding.trackSearchCover)
             if (!track.cover_url.isEmpty()) {
                 GlideApp.with(view.context)
                     .load(track.cover_url)
                     .diskCacheStrategy(DiskCacheStrategy.RESOURCE)
                     .centerCrop()
-                    .into(view.track_search_cover)
+                    .into(binding.trackSearchCover)
             }
 
             if (track.publishing_status.isBlank()) {
-                view.track_search_status.isVisible = false
+                binding.trackSearchStatus.isVisible = false
-                view.track_search_status_result.isVisible = false
+                binding.trackSearchStatusResult.isVisible = false
             } else {
-                view.track_search_status_result.text = track.publishing_status.capitalize()
+                binding.trackSearchStatusResult.text = track.publishing_status.capitalize()
             }
 
             if (track.publishing_type.isBlank()) {
-                view.track_search_type.isVisible = false
+                binding.trackSearchType.isVisible = false
-                view.track_search_type_result.isVisible = false
+                binding.trackSearchTypeResult.isVisible = false
             } else {
-                view.track_search_type_result.text = track.publishing_type.capitalize()
+                binding.trackSearchTypeResult.text = track.publishing_type.capitalize()
             }
 
             if (track.start_date.isBlank()) {
-                view.track_search_start.isVisible = false
+                binding.trackSearchStart.isVisible = false
-                view.track_search_start_result.isVisible = false
+                binding.trackSearchStartResult.isVisible = false
             } else {
-                view.track_search_start_result.text = track.start_date
+                binding.trackSearchStartResult.text = track.start_date
             }
         }
     }

app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackSearchDialog.kt

@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.ui.manga.track
 
 import android.app.Dialog
 import android.os.Bundle
+import android.view.LayoutInflater
 import android.view.View
 import androidx.core.os.bundleOf
 import androidx.core.view.isInvisible
@@ -13,10 +14,8 @@ import eu.kanade.tachiyomi.data.database.models.Track
 import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.data.track.TrackService
 import eu.kanade.tachiyomi.data.track.model.TrackSearch
+import eu.kanade.tachiyomi.databinding.TrackSearchDialogBinding
 import eu.kanade.tachiyomi.ui.base.controller.DialogController
-import kotlinx.android.synthetic.main.track_search_dialog.view.progress
-import kotlinx.android.synthetic.main.track_search_dialog.view.track_search
-import kotlinx.android.synthetic.main.track_search_dialog.view.track_search_list
 import kotlinx.coroutines.flow.debounce
 import kotlinx.coroutines.flow.filter
 import kotlinx.coroutines.flow.launchIn
@@ -29,7 +28,7 @@ import java.util.concurrent.TimeUnit
 
 class TrackSearchDialog : DialogController {
 
-    private var dialogView: View? = null
+    private var binding: TrackSearchDialogBinding? = null
 
     private var adapter: TrackSearchAdapter? = null
 
@@ -53,13 +52,13 @@ class TrackSearchDialog : DialogController {
     }
 
     override fun onCreateDialog(savedViewState: Bundle?): Dialog {
+        binding = TrackSearchDialogBinding.inflate(LayoutInflater.from(activity!!))
         val dialog = MaterialDialog(activity!!)
-            .customView(R.layout.track_search_dialog)
+            .customView(view = binding!!.root)
             .positiveButton(android.R.string.ok) { onPositiveButtonClick() }
             .negativeButton(android.R.string.cancel)
             .neutralButton(R.string.action_remove) { onRemoveButtonClick() }
 
-        dialogView = dialog.view
         onViewCreated(dialog.view, savedViewState)
 
         return dialog
@@ -69,12 +68,12 @@ class TrackSearchDialog : DialogController {
         // Create adapter
         val adapter = TrackSearchAdapter(view.context)
         this.adapter = adapter
-        view.track_search_list.adapter = adapter
+        binding!!.trackSearchList.adapter = adapter
 
         // Set listeners
         selectedItem = null
 
-        view.track_search_list.itemClicks()
+        binding!!.trackSearchList.itemClicks()
             .onEach { position ->
                 selectedItem = adapter.getItem(position)
             }
@@ -83,20 +82,20 @@ class TrackSearchDialog : DialogController {
         // Do an initial search based on the manga's title
         if (savedState == null) {
             val title = trackController.presenter.manga.title
-            view.track_search.append(title)
+            binding!!.trackSearch.append(title)
             search(title)
         }
     }
 
     override fun onDestroyView(view: View) {
         super.onDestroyView(view)
-        dialogView = null
+        binding = null
         adapter = null
     }
 
     override fun onAttach(view: View) {
         super.onAttach(view)
-        dialogView!!.track_search.textChanges()
+        binding!!.trackSearch.textChanges()
             .debounce(TimeUnit.SECONDS.toMillis(1))
             .filter { it.isNotBlank() }
             .onEach { search(it.toString()) }
@@ -104,24 +103,24 @@ class TrackSearchDialog : DialogController {
     }
 
     private fun search(query: String) {
-        val view = dialogView ?: return
+        val binding = binding ?: return
-        view.progress.isVisible = true
+        binding.progress.isVisible = true
-        view.track_search_list.isInvisible = true
+        binding.trackSearchList.isInvisible = true
         trackController.presenter.search(query, service)
     }
 
     fun onSearchResults(results: List<TrackSearch>) {
         selectedItem = null
-        val view = dialogView ?: return
+        val binding = binding ?: return
-        view.progress.isInvisible = true
+        binding.progress.isInvisible = true
-        view.track_search_list.isVisible = true
+        binding.trackSearchList.isVisible = true
         adapter?.setItems(results)
     }
 
     fun onSearchResultsError() {
-        val view = dialogView ?: return
+        val binding = binding ?: return
-        view.progress.isVisible = true
+        binding.progress.isVisible = true
-        view.track_search_list.isInvisible = true
+        binding.trackSearchList.isInvisible = true
         adapter?.setItems(emptyList())
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/setting/track/TrackLoginDialog.kt

@@ -9,9 +9,6 @@ import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.data.track.TrackService
 import eu.kanade.tachiyomi.util.system.toast
 import eu.kanade.tachiyomi.widget.preference.LoginDialogPreference
-import kotlinx.android.synthetic.main.pref_account_login.view.login
-import kotlinx.android.synthetic.main.pref_account_login.view.password
-import kotlinx.android.synthetic.main.pref_account_login.view.username
 import rx.android.schedulers.AndroidSchedulers
 import rx.schedulers.Schedulers
 import uy.kohesive.injekt.Injekt
@@ -31,22 +28,21 @@ class TrackLoginDialog(
     constructor(service: TrackService, @StringRes usernameLabelRes: Int?) :
         this(R.string.login_title, service.name, usernameLabelRes, bundleOf("key" to service.id))
 
-    override fun setCredentialsOnView(view: View) = with(view) {
+    override fun setCredentialsOnView(view: View) {
-        username.setText(service.getUsername())
+        binding?.username?.setText(service.getUsername())
-        password.setText(service.getPassword())
+        binding?.password?.setText(service.getPassword())
     }
 
     override fun checkLogin() {
         requestSubscription?.unsubscribe()
 
-        v?.apply {
+        if (binding!!.username.text.isNullOrEmpty() || binding!!.password.text.isNullOrEmpty()) {
-            if (username.text.isNullOrEmpty() || password.text.isNullOrEmpty()) {
             return
         }
 
-            login.progress = 1
+        binding!!.login.progress = 1
-            val user = username.text.toString()
+        val user = binding!!.username.text.toString()
-            val pass = password.text.toString()
+        val pass = binding!!.password.text.toString()
 
         requestSubscription = service.login(user, pass)
             .subscribeOn(Schedulers.io())
@@ -54,16 +50,15 @@ class TrackLoginDialog(
             .subscribe(
                 {
                     dialog?.dismiss()
-                        context.toast(R.string.login_success)
+                    view?.context?.toast(R.string.login_success)
                 },
                 { error ->
-                        login.progress = -1
+                    binding!!.login.progress = -1
-                        login.setText(R.string.unknown_error)
+                    binding!!.login.setText(R.string.unknown_error)
-                        error.message?.let { context.toast(it) }
+                    error.message?.let { view?.context?.toast(it) }
                 }
             )
     }
-    }
 
     override fun onDialogClosed() {
         super.onDialogClosed()

app/src/main/java/eu/kanade/tachiyomi/widget/preference/LoginDialogPreference.kt

@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.widget.preference
 
 import android.app.Dialog
 import android.os.Bundle
+import android.view.LayoutInflater
 import android.view.View
 import androidx.annotation.StringRes
 import com.afollestad.materialdialogs.MaterialDialog
@@ -9,11 +10,9 @@ import com.afollestad.materialdialogs.customview.customView
 import com.bluelinelabs.conductor.ControllerChangeHandler
 import com.bluelinelabs.conductor.ControllerChangeType
 import com.dd.processbutton.iml.ActionProcessButton
-import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.databinding.PrefAccountLoginBinding
 import eu.kanade.tachiyomi.ui.base.controller.DialogController
-import kotlinx.android.synthetic.main.pref_account_login.view.login
-import kotlinx.android.synthetic.main.pref_account_login.view.username_label
 import rx.Subscription
 import uy.kohesive.injekt.injectLazy
 
@@ -24,7 +23,7 @@ abstract class LoginDialogPreference(
     bundle: Bundle? = null
 ) : DialogController(bundle) {
 
-    var v: View? = null
+    var binding: PrefAccountLoginBinding? = null
         private set
 
     val preferences: PreferencesHelper by injectLazy()
@@ -32,8 +31,9 @@ abstract class LoginDialogPreference(
     var requestSubscription: Subscription? = null
 
     override fun onCreateDialog(savedViewState: Bundle?): Dialog {
+        binding = PrefAccountLoginBinding.inflate(LayoutInflater.from(activity!!))
         var dialog = MaterialDialog(activity!!)
-            .customView(R.layout.pref_account_login)
+            .customView(view = binding!!.root)
             .negativeButton(android.R.string.cancel)
 
         if (titleRes != null) {
@@ -46,16 +46,14 @@ abstract class LoginDialogPreference(
     }
 
     fun onViewCreated(view: View) {
-        v = view.apply {
         if (usernameLabelRes != null) {
-                username_label.hint = context.getString(usernameLabelRes)
+            binding!!.usernameLabel.hint = view.context.getString(usernameLabelRes)
         }
 
-            login.setMode(ActionProcessButton.Mode.ENDLESS)
+        binding!!.login.setMode(ActionProcessButton.Mode.ENDLESS)
-            login.setOnClickListener { checkLogin() }
+        binding!!.login.setOnClickListener { checkLogin() }
 
-            setCredentialsOnView(this)
+        setCredentialsOnView(view)
-        }
     }
 
     override fun onChangeStarted(handler: ControllerChangeHandler, type: ControllerChangeType) {
@@ -67,6 +65,7 @@ abstract class LoginDialogPreference(
 
     open fun onDialogClosed() {
         requestSubscription?.unsubscribe()
+        binding = null
     }
 
     protected abstract fun checkLogin()