Listen to wallpaper change and change theme.

app/src/main/AndroidManifest.xml

@@ -32,7 +32,8 @@
         android:theme="@style/AppTheme"
         android:usesCleartextTraffic="true"
         tools:replace="android:label">
-        <activity android:name=".activities.LockScreenActivity"
+        <activity
+            android:name=".activities.LockScreenActivity"
             android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name=".activities.AnonymousSubscriptionsActivity"
@@ -429,6 +430,10 @@
             android:name=".services.SubmitPostService"
             android:enabled="true"
             android:exported="false" />
+
+        <service
+            android:name=".services.MaterialYouService"
+            android:exported="false" />
     </application>
 
 </manifest>

app/src/main/java/ml/docilealligator/infinityforreddit/AppComponent.java

@@ -73,6 +73,7 @@ import ml.docilealligator.infinityforreddit.fragments.ViewRedditGalleryImageOrGi
 import ml.docilealligator.infinityforreddit.fragments.ViewRedditGalleryVideoFragment;
 import ml.docilealligator.infinityforreddit.services.DownloadMediaService;
 import ml.docilealligator.infinityforreddit.services.DownloadRedditVideoService;
+import ml.docilealligator.infinityforreddit.services.MaterialYouService;
 import ml.docilealligator.infinityforreddit.services.SubmitPostService;
 import ml.docilealligator.infinityforreddit.settings.AdvancedPreferenceFragment;
 import ml.docilealligator.infinityforreddit.settings.CrashReportsFragment;
@@ -266,4 +267,6 @@ public interface AppComponent {
     void inject(AnonymousSubscriptionsActivity anonymousSubscriptionsActivity);
 
     void inject(LockScreenActivity lockScreenActivity);
+
+    void inject(MaterialYouService materialYouService);
 }

app/src/main/java/ml/docilealligator/infinityforreddit/Infinity.java

@@ -1,6 +1,7 @@
 package ml.docilealligator.infinityforreddit;
 
 import android.app.Application;
+import android.content.Intent;
 import android.content.IntentFilter;
 import android.net.ConnectivityManager;
 import android.os.Bundle;
@@ -16,6 +17,7 @@ import com.livefront.bridge.SavedStateHandler;
 import org.greenrobot.eventbus.EventBus;
 
 import ml.docilealligator.infinityforreddit.broadcastreceivers.NetworkWifiStatusReceiver;
+import ml.docilealligator.infinityforreddit.broadcastreceivers.WallpaperChangeReceiver;
 import ml.docilealligator.infinityforreddit.events.ChangeNetworkStatusEvent;
 import ml.docilealligator.infinityforreddit.utils.Utils;
 
@@ -87,6 +89,8 @@ public class Infinity extends Application implements LifecycleObserver {
         mNetworkWifiStatusReceiver =
                 new NetworkWifiStatusReceiver(() -> EventBus.getDefault().post(new ChangeNetworkStatusEvent(Utils.getConnectedNetwork(getApplicationContext()))));
         registerReceiver(mNetworkWifiStatusReceiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
+
+        registerReceiver(new WallpaperChangeReceiver(), new IntentFilter(Intent.ACTION_WALLPAPER_CHANGED));
     }
 
 //    @OnLifecycleEvent(Lifecycle.Event.ON_START)

app/src/main/java/ml/docilealligator/infinityforreddit/broadcastreceivers/WallpaperChangeReceiver.java

@@ -0,0 +1,21 @@
+package ml.docilealligator.infinityforreddit.broadcastreceivers;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+import java.util.Objects;
+
+import ml.docilealligator.infinityforreddit.services.MaterialYouService;
+
+public class WallpaperChangeReceiver extends BroadcastReceiver {
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        Log.i("asfasdf", "s " + intent.getAction());
+        if (Objects.equals(intent.getAction(), "android.intent.action.WALLPAPER_CHANGED")) {
+            Intent materialYouIntent = new Intent(context, MaterialYouService.class);
+            context.startService(materialYouIntent);
+        }
+    }
+}

app/src/main/java/ml/docilealligator/infinityforreddit/services/MaterialYouService.java

@@ -0,0 +1,46 @@
+package ml.docilealligator.infinityforreddit.services;
+
+import android.app.IntentService;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Handler;
+
+import java.util.concurrent.Executor;
+
+import javax.inject.Inject;
+import javax.inject.Named;
+
+import ml.docilealligator.infinityforreddit.Infinity;
+import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
+import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
+import ml.docilealligator.infinityforreddit.utils.MaterialYouUtils;
+
+public class MaterialYouService extends IntentService {
+
+    @Inject
+    @Named("light_theme")
+    SharedPreferences lightThemeSharedPreferences;
+    @Inject
+    @Named("dark_theme")
+    SharedPreferences darkThemeSharedPreferences;
+    @Inject
+    @Named("amoled_theme")
+    SharedPreferences amoledThemeSharedPreferences;
+    @Inject
+    RedditDataRoomDatabase redditDataRoomDatabase;
+    @Inject
+    CustomThemeWrapper customThemeWrapper;
+    @Inject
+    Executor executor;
+
+    public MaterialYouService() {
+        super("MaterialYouService");
+    }
+
+    @Override
+    protected void onHandleIntent(Intent intent) {
+        ((Infinity) getApplication()).getAppComponent().inject(this);
+        MaterialYouUtils.changeTheme(this, executor, new Handler(), customThemeWrapper,
+                lightThemeSharedPreferences, darkThemeSharedPreferences, amoledThemeSharedPreferences);
+    }
+}

app/src/main/java/ml/docilealligator/infinityforreddit/settings/ThemePreferenceFragment.java

@@ -1,17 +1,13 @@
 package ml.docilealligator.infinityforreddit.settings;
 
-import android.app.WallpaperColors;
-import android.app.WallpaperManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
-import android.graphics.Color;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 
-import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.app.AppCompatDelegate;
@@ -39,6 +35,7 @@ import ml.docilealligator.infinityforreddit.customtheme.CustomThemeViewModel;
 import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.events.RecreateActivityEvent;
 import ml.docilealligator.infinityforreddit.utils.CustomThemeSharedPreferencesUtils;
+import ml.docilealligator.infinityforreddit.utils.MaterialYouUtils;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
 
 import static androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_AUTO_BATTERY;
@@ -174,65 +171,12 @@ public class ThemePreferenceFragment extends PreferenceFragmentCompat {
 
         if (enableMaterialYouSwitchPreference != null) {
             Handler handler = new Handler();
-            enableMaterialYouSwitchPreference.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
+            enableMaterialYouSwitchPreference.setOnPreferenceChangeListener((preference, newValue) -> {
-                @Override
+                if (true) {
-                public boolean onPreferenceChange(Preference preference, Object newValue) {
+                    MaterialYouUtils.changeTheme(activity, executor, new Handler(), customThemeWrapper,
-                    if (true) {
+                            lightThemeSharedPreferences, darkThemeSharedPreferences, amoledThemeSharedPreferences);
-                        executor.execute(() -> {
-                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
-                                WallpaperManager wallpaperManager = WallpaperManager.getInstance(activity);
-                                WallpaperColors wallpaperColors = wallpaperManager.getWallpaperColors(WallpaperManager.FLAG_SYSTEM);
-
-                                if (wallpaperColors != null) {
-                                    int colorPrimaryInt = shiftColorTo255(wallpaperColors.getPrimaryColor().toArgb(), 0.4);
-                                    int colorPrimaryDarkInt = shiftColorTo0(colorPrimaryInt, 0.4);
-                                    int backgroundColor = shiftColorTo255(colorPrimaryInt, 0.6);
-                                    int cardViewBackgroundColor = shiftColorTo255(colorPrimaryInt, 0.9);
-                                    Color colorAccent = wallpaperColors.getSecondaryColor();
-                                    int colorAccentInt = shiftColorTo255(colorAccent == null ? customThemeWrapper.getColorAccent() : colorAccent.toArgb(), 0.4);
-
-                                    int colorPrimaryAppropriateTextColor = getAppropriateTextColor(colorPrimaryInt);
-                                    int backgroundColorAppropriateTextColor = getAppropriateTextColor(backgroundColor);
-
-                                    lightThemeSharedPreferences.edit().putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY, colorPrimaryInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY_DARK, colorPrimaryDarkInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_ACCENT, colorAccentInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY_LIGHT_THEME, colorPrimaryInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.BACKGROUND_COLOR, backgroundColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.CARD_VIEW_BACKGROUND_COLOR, cardViewBackgroundColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.BOTTOM_APP_BAR_BACKGROUND_COLOR, colorPrimaryInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.NAV_BAR_COLOR, colorPrimaryInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.PRIMARY_TEXT_COLOR, backgroundColorAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.BOTTOM_APP_BAR_ICON_COLOR, colorPrimaryAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.PRIMARY_ICON_COLOR, backgroundColorAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.FAB_ICON_COLOR, colorPrimaryAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.TOOLBAR_PRIMARY_TEXT_AND_ICON_COLOR, colorPrimaryAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.TOOLBAR_SECONDARY_TEXT_COLOR, colorPrimaryAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_COLLAPSED_COLLAPSING_TOOLBAR_TAB_INDICATOR, colorPrimaryAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_COLLAPSED_COLLAPSING_TOOLBAR_TEXT_COLOR, colorPrimaryAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_COLLAPSED_COLLAPSING_TOOLBAR_TAB_BACKGROUND, colorPrimaryInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_EXPANDED_COLLAPSING_TOOLBAR_TAB_BACKGROUND, colorPrimaryInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_EXPANDED_COLLAPSING_TOOLBAR_TAB_INDICATOR, colorPrimaryAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_EXPANDED_COLLAPSING_TOOLBAR_TEXT_COLOR, colorPrimaryAppropriateTextColor)
-                                            .putInt(CustomThemeSharedPreferencesUtils.CIRCULAR_PROGRESS_BAR_BACKGROUND, colorPrimaryInt)
-                                            .putBoolean(CustomThemeSharedPreferencesUtils.LIGHT_STATUS_BAR, getAppropriateTextColor(colorPrimaryDarkInt) == Color.toArgb(Color.BLACK))
-                                            .apply();
-                                    darkThemeSharedPreferences.edit()
-                                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_ACCENT, colorPrimaryInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY_LIGHT_THEME, colorPrimaryInt)
-                                            .apply();
-                                    amoledThemeSharedPreferences.edit()
-                                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_ACCENT, colorPrimaryInt)
-                                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY_LIGHT_THEME, colorPrimaryInt)
-                                            .apply();
-
-                                    handler.post(() -> EventBus.getDefault().post(new RecreateActivityEvent()));
-                                }
-                            }
-                        });
-                    }
-                    return true;
                 }
+                return true;
             });
         }
 
@@ -271,28 +215,6 @@ public class ThemePreferenceFragment extends PreferenceFragmentCompat {
         });
     }
 
-    private int shiftColorTo255(int color, double ratio) {
-        int offset = (int) (Math.min(Math.min(255 - Color.red(color), 255 - Color.green(color)), 255 - Color.blue(color)) * ratio);
-        return Color.argb(Color.alpha(color), Color.red(color) + offset,
-                Color.green(color) + offset,
-                Color.blue(color) + offset);
-    }
-
-    private int shiftColorTo0(int color, double ratio) {
-        int offset = (int) (Math.min(Math.min(Color.red(color), Color.green(color)), Color.blue(color)) * ratio);
-        return Color.argb(Color.alpha(color), Color.red(color) - offset,
-                Color.green(color) - offset,
-                Color.blue(color) - offset);
-
-    }
-
-    @ColorInt
-    public int getAppropriateTextColor(@ColorInt int color) {
-        // Counting the perceptive luminance - human eye favors green color...
-        double luminance = 1 - (0.299 * Color.red(color) + 0.587 * Color.green(color) + 0.114 * Color.blue(color)) / 255;
-        return luminance < 0.5 ? Color.BLACK : Color.WHITE;
-    }
-
     @Override
     public void onAttach(@NonNull Context context) {
         super.onAttach(context);

app/src/main/java/ml/docilealligator/infinityforreddit/utils/MaterialYouUtils.java

@@ -0,0 +1,101 @@
+package ml.docilealligator.infinityforreddit.utils;
+
+import android.app.WallpaperColors;
+import android.app.WallpaperManager;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.graphics.Color;
+import android.os.Build;
+import android.os.Handler;
+
+import androidx.annotation.ColorInt;
+
+import org.greenrobot.eventbus.EventBus;
+
+import java.util.concurrent.Executor;
+
+import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
+import ml.docilealligator.infinityforreddit.events.RecreateActivityEvent;
+
+public class MaterialYouUtils {
+    public static void changeTheme(Context context, Executor executor, Handler handler,
+                                   CustomThemeWrapper customThemeWrapper,
+                                   SharedPreferences lightThemeSharedPreferences,
+                                   SharedPreferences darkThemeSharedPreferences,
+                                   SharedPreferences amoledThemeSharedPreferences) {
+        executor.execute(() -> {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
+                WallpaperManager wallpaperManager = WallpaperManager.getInstance(context);
+                WallpaperColors wallpaperColors = wallpaperManager.getWallpaperColors(WallpaperManager.FLAG_SYSTEM);
+
+                if (wallpaperColors != null) {
+                    int colorPrimaryInt = shiftColorTo255(wallpaperColors.getPrimaryColor().toArgb(), 0.4);
+                    int colorPrimaryDarkInt = shiftColorTo0(colorPrimaryInt, 0.4);
+                    int backgroundColor = shiftColorTo255(colorPrimaryInt, 0.6);
+                    int cardViewBackgroundColor = shiftColorTo255(colorPrimaryInt, 0.9);
+                    Color colorAccent = wallpaperColors.getSecondaryColor();
+                    int colorAccentInt = shiftColorTo255(colorAccent == null ? customThemeWrapper.getColorAccent() : colorAccent.toArgb(), 0.4);
+
+                    int colorPrimaryAppropriateTextColor = getAppropriateTextColor(colorPrimaryInt);
+                    int backgroundColorAppropriateTextColor = getAppropriateTextColor(backgroundColor);
+
+                    lightThemeSharedPreferences.edit().putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY, colorPrimaryInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY_DARK, colorPrimaryDarkInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_ACCENT, colorAccentInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY_LIGHT_THEME, colorPrimaryInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.BACKGROUND_COLOR, backgroundColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.CARD_VIEW_BACKGROUND_COLOR, cardViewBackgroundColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.BOTTOM_APP_BAR_BACKGROUND_COLOR, colorPrimaryInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.NAV_BAR_COLOR, colorPrimaryInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.PRIMARY_TEXT_COLOR, backgroundColorAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.BOTTOM_APP_BAR_ICON_COLOR, colorPrimaryAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.PRIMARY_ICON_COLOR, backgroundColorAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.FAB_ICON_COLOR, colorPrimaryAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.TOOLBAR_PRIMARY_TEXT_AND_ICON_COLOR, colorPrimaryAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.TOOLBAR_SECONDARY_TEXT_COLOR, colorPrimaryAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_COLLAPSED_COLLAPSING_TOOLBAR_TAB_INDICATOR, colorPrimaryAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_COLLAPSED_COLLAPSING_TOOLBAR_TEXT_COLOR, colorPrimaryAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_COLLAPSED_COLLAPSING_TOOLBAR_TAB_BACKGROUND, colorPrimaryInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_EXPANDED_COLLAPSING_TOOLBAR_TAB_BACKGROUND, colorPrimaryInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_EXPANDED_COLLAPSING_TOOLBAR_TAB_INDICATOR, colorPrimaryAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.TAB_LAYOUT_WITH_EXPANDED_COLLAPSING_TOOLBAR_TEXT_COLOR, colorPrimaryAppropriateTextColor)
+                            .putInt(CustomThemeSharedPreferencesUtils.CIRCULAR_PROGRESS_BAR_BACKGROUND, colorPrimaryInt)
+                            .putBoolean(CustomThemeSharedPreferencesUtils.LIGHT_STATUS_BAR, getAppropriateTextColor(colorPrimaryDarkInt) == Color.toArgb(Color.BLACK))
+                            .apply();
+                    darkThemeSharedPreferences.edit()
+                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_ACCENT, colorPrimaryInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY_LIGHT_THEME, colorPrimaryInt)
+                            .apply();
+                    amoledThemeSharedPreferences.edit()
+                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_ACCENT, colorPrimaryInt)
+                            .putInt(CustomThemeSharedPreferencesUtils.COLOR_PRIMARY_LIGHT_THEME, colorPrimaryInt)
+                            .apply();
+
+                    handler.post(() -> EventBus.getDefault().post(new RecreateActivityEvent()));
+                }
+            }
+        });
+    }
+
+    private static int shiftColorTo255(int color, double ratio) {
+        int offset = (int) (Math.min(Math.min(255 - Color.red(color), 255 - Color.green(color)), 255 - Color.blue(color)) * ratio);
+        return Color.argb(Color.alpha(color), Color.red(color) + offset,
+                Color.green(color) + offset,
+                Color.blue(color) + offset);
+    }
+
+    private static int shiftColorTo0(int color, double ratio) {
+        int offset = (int) (Math.min(Math.min(Color.red(color), Color.green(color)), Color.blue(color)) * ratio);
+        return Color.argb(Color.alpha(color), Color.red(color) - offset,
+                Color.green(color) - offset,
+                Color.blue(color) - offset);
+
+    }
+
+    @ColorInt
+    public static int getAppropriateTextColor(@ColorInt int color) {
+        // Counting the perceptive luminance - human eye favors green color...
+        double luminance = 1 - (0.299 * Color.red(color) + 0.587 * Color.green(color) + 0.114 * Color.blue(color)) / 255;
+        return luminance < 0.5 ? Color.BLACK : Color.WHITE;
+    }
+}