Android: Add theme mode switcher

Similar to app themes, theme modes have to be loaded before directory initialization is ready. So we save the proper key the same way.

Source/Android/app/build.gradle

@@ -96,7 +96,7 @@ android {
 dependencies {
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
 
-    implementation 'androidx.appcompat:appcompat:1.5.0'
+    implementation 'androidx.appcompat:appcompat:1.5.1'
     implementation 'androidx.exifinterface:exifinterface:1.3.3'
     implementation 'androidx.cardview:cardview:1.0.0'
     implementation 'androidx.recyclerview:recyclerview:1.2.1'

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/IntSetting.java

@@ -34,6 +34,8 @@ public enum IntSetting implements AbstractIntSetting
   MAIN_EMULATION_ORIENTATION(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID,
           "EmulationOrientation", ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE),
   MAIN_INTERFACE_THEME(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID, "InterfaceTheme", 0),
+  MAIN_INTERFACE_THEME_MODE(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID,
+          "InterfaceThemeMode", -1),
   MAIN_LAST_PLATFORM_TAB(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID, "LastPlatformTab", 0),
   MAIN_MOTION_CONTROLS(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID, "MotionControls", 1),
   MAIN_IR_MODE(Settings.FILE_DOLPHIN, Settings.SECTION_INI_ANDROID, "IRMode",

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java

@@ -8,6 +8,8 @@ import android.os.Build;
 import android.os.Bundle;
 import android.text.TextUtils;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 import org.dolphinemu.dolphinemu.NativeLibrary;
 import org.dolphinemu.dolphinemu.R;
 import org.dolphinemu.dolphinemu.activities.UserDataActivity;
@@ -328,33 +330,37 @@ public final class SettingsFragmentPresenter
 
     AbstractIntSetting appTheme = new AbstractIntSetting()
     {
-      @Override public boolean isOverridden(Settings settings)
+      @Override
+      public boolean isOverridden(Settings settings)
       {
         return IntSetting.MAIN_INTERFACE_THEME.isOverridden(settings);
       }
 
-      @Override public boolean isRuntimeEditable()
+      @Override
+      public boolean isRuntimeEditable()
       {
         // This only affects app UI
         return true;
       }
 
-      @Override public boolean delete(Settings settings)
+      @Override
+      public boolean delete(Settings settings)
       {
-        ThemeHelper.deleteThemeKey(mView.getActivity());
+        ThemeHelper.deleteThemeKey((AppCompatActivity) mView.getActivity());
         return IntSetting.MAIN_INTERFACE_THEME.delete(settings);
       }
 
-      @Override public int getInt(Settings settings)
+      @Override
+      public int getInt(Settings settings)
       {
         return IntSetting.MAIN_INTERFACE_THEME.getInt(settings);
       }
 
-      @Override public void setInt(Settings settings, int newValue)
+      @Override
+      public void setInt(Settings settings, int newValue)
       {
-        ThemeHelper.saveTheme(mView.getActivity(), newValue);
         IntSetting.MAIN_INTERFACE_THEME.setInt(settings, newValue);
-        mView.getActivity().recreate();
+        ThemeHelper.saveTheme((AppCompatActivity) mView.getActivity(), newValue);
       }
     };
 
@@ -369,6 +375,45 @@ public final class SettingsFragmentPresenter
       sl.add(new SingleChoiceSetting(mContext, appTheme, R.string.change_theme, 0,
               R.array.themeEntries, R.array.themeValues));
     }
+
+    AbstractIntSetting themeMode = new AbstractIntSetting()
+    {
+      @Override
+      public boolean isOverridden(Settings settings)
+      {
+        return IntSetting.MAIN_INTERFACE_THEME_MODE.isOverridden(settings);
+      }
+
+      @Override
+      public boolean isRuntimeEditable()
+      {
+        // This only affects app UI
+        return true;
+      }
+
+      @Override
+      public boolean delete(Settings settings)
+      {
+        ThemeHelper.deleteThemeModeKey((AppCompatActivity) mView.getActivity());
+        return IntSetting.MAIN_INTERFACE_THEME_MODE.delete(settings);
+      }
+
+      @Override
+      public int getInt(Settings settings)
+      {
+        return IntSetting.MAIN_INTERFACE_THEME_MODE.getInt(settings);
+      }
+
+      @Override
+      public void setInt(Settings settings, int newValue)
+      {
+        IntSetting.MAIN_INTERFACE_THEME_MODE.setInt(settings, newValue);
+        ThemeHelper.saveThemeMode((AppCompatActivity) mView.getActivity(), newValue);
+      }
+    };
+
+    sl.add(new SingleChoiceSetting(mContext, themeMode, R.string.change_theme_mode, 0,
+            R.array.themeModeEntries, R.array.themeModeValues));
   }
 
   private void addAudioSettings(ArrayList<SettingsItem> sl)

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/DirectoryInitialization.java

@@ -13,6 +13,7 @@ import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 import androidx.preference.PreferenceManager;
@@ -87,6 +88,16 @@ public final class DirectoryInitialization
               .apply();
     }
 
+    if (IntSetting.MAIN_INTERFACE_THEME_MODE.getIntGlobal() !=
+            preferences.getInt(ThemeHelper.CURRENT_THEME_MODE,
+                    AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM))
+    {
+      preferences.edit()
+              .putInt(ThemeHelper.CURRENT_THEME_MODE,
+                      IntSetting.MAIN_INTERFACE_THEME_MODE.getIntGlobal())
+              .apply();
+    }
+
     if (wiimoteIniWritten)
     {
       // This has to be done after calling NativeLibrary.Initialize(),

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/ThemeHelper.java

@@ -10,7 +10,10 @@ import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
 import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.core.content.ContextCompat;
+import androidx.core.view.WindowCompat;
+import androidx.core.view.WindowInsetsControllerCompat;
 import androidx.preference.PreferenceManager;
 
 import com.google.android.material.appbar.AppBarLayout;
@@ -23,6 +26,7 @@ import org.dolphinemu.dolphinemu.ui.main.ThemeProvider;
 public class ThemeHelper
 {
   public static final String CURRENT_THEME = "current_theme";
+  public static final String CURRENT_THEME_MODE = "current_theme_mode";
 
   public static final int DEFAULT = 0;
   public static final int MONET = 1;
@@ -38,6 +42,7 @@ public class ThemeHelper
     // requested theme id is ready before the onCreate method of any given Activity.
     SharedPreferences preferences =
             PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext());
+    setThemeMode(activity);
     switch (preferences.getInt(CURRENT_THEME, DEFAULT))
     {
       case DEFAULT:
@@ -70,22 +75,88 @@ public class ThemeHelper
     }
   }
 
-  public static void saveTheme(@NonNull Activity activity, int themeValue)
+  private static void setThemeMode(@NonNull AppCompatActivity activity)
   {
-    SharedPreferences preferences =
+    int themeMode = PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
-            PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext());
+            .getInt(CURRENT_THEME_MODE, AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM);
-    preferences.edit().putInt(CURRENT_THEME, themeValue).apply();
+    activity.getDelegate().setLocalNightMode(themeMode);
+
+    WindowInsetsControllerCompat windowController =
+            WindowCompat.getInsetsController(activity.getWindow(),
+                    activity.getWindow().getDecorView());
+    int systemReportedThemeMode =
+            activity.getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
+
+    switch (themeMode)
+    {
+      case AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM:
+        switch (systemReportedThemeMode)
+        {
+          case Configuration.UI_MODE_NIGHT_NO:
+            setLightModeSystemBars(windowController);
+            break;
+          case Configuration.UI_MODE_NIGHT_YES:
+            setDarkModeSystemBars(windowController);
+            break;
+        }
+        break;
+      case AppCompatDelegate.MODE_NIGHT_NO:
+        setLightModeSystemBars(windowController);
+        break;
+      case AppCompatDelegate.MODE_NIGHT_YES:
+        setDarkModeSystemBars(windowController);
+        break;
+    }
   }
 
-  public static void deleteThemeKey(@NonNull Activity activity)
+  private static void setLightModeSystemBars(@NonNull WindowInsetsControllerCompat windowController)
   {
-    SharedPreferences preferences =
+    windowController.setAppearanceLightStatusBars(true);
-            PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext());
+    windowController.setAppearanceLightNavigationBars(true);
-    preferences.edit().remove(CURRENT_THEME).apply();
+  }
-    activity.setTheme(R.style.Theme_Dolphin_Main);
+
+  private static void setDarkModeSystemBars(@NonNull WindowInsetsControllerCompat windowController)
+  {
+    windowController.setAppearanceLightStatusBars(false);
+    windowController.setAppearanceLightNavigationBars(false);
+  }
+
+  public static void saveTheme(@NonNull AppCompatActivity activity, int themeValue)
+  {
+    PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
+            .edit()
+            .putInt(CURRENT_THEME, themeValue)
+            .apply();
     activity.recreate();
   }
 
+  public static void deleteThemeKey(@NonNull AppCompatActivity activity)
+  {
+    PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
+            .edit()
+            .remove(CURRENT_THEME)
+            .apply();
+    activity.recreate();
+  }
+
+  public static void saveThemeMode(@NonNull AppCompatActivity activity, int themeModeValue)
+  {
+    PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
+            .edit()
+            .putInt(CURRENT_THEME_MODE, themeModeValue)
+            .apply();
+    setThemeMode(activity);
+  }
+
+  public static void deleteThemeModeKey(@NonNull AppCompatActivity activity)
+  {
+    PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext())
+            .edit()
+            .remove(CURRENT_THEME_MODE)
+            .apply();
+    setThemeMode(activity);
+  }
+
   public static void setCorrectTheme(AppCompatActivity activity)
   {
     int currentTheme = ((ThemeProvider) activity).getThemeId();
@@ -110,7 +181,7 @@ public class ThemeHelper
     }
   }
 
-  public static void setNavigationBarColor(Activity activity, @ColorInt int color)
+  public static void setNavigationBarColor(@NonNull Activity activity, @ColorInt int color)
   {
     int gestureType = InsetsHelper.getSystemGestureType(activity.getApplicationContext());
     int orientation = activity.getResources().getConfiguration().orientation;

Source/Android/app/src/main/res/drawable/ic_back.xml

@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-  <path
-      android:fillColor="?attr/colorOnSurface"
-      android:pathData="M20,11H7.83l5.59,-5.59L12,4l-8,8 8,8 1.41,-1.41L7.83,13H20v-2z"/>
-</vector>

Source/Android/app/src/main/res/drawable/tv_card_background.xml

@@ -2,7 +2,7 @@
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item
         android:state_selected="true"
-        android:drawable="@color/dolphin_primary"/>
+        android:drawable="@color/dolphin_blue"/>
     <item
         android:drawable="@color/tv_card_unselected"/>
 </selector>

Source/Android/app/src/main/res/values-night/bools.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <bool name="lightSystemBars">false</bool>
-</resources>

Source/Android/app/src/main/res/values-v27/themes.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <style name="Theme.V27.Dolphin" parent="Theme.Dolphin">
-        <item name="android:windowLightNavigationBar">@bool/lightSystemBars</item>
-    </style>
-
-    <style name="Theme.Dolphin.Main" parent="Theme.V27.Dolphin" />
-</resources>

Source/Android/app/src/main/res/values-v29/themes.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <style name="Theme.V29.Dolphin" parent="Theme.V27.Dolphin">
+    <style name="Theme.V29.Dolphin" parent="Theme.Dolphin">
         <item name="android:enforceStatusBarContrast">false</item>
         <item name="android:enforceNavigationBarContrast">false</item>
     </style>

Source/Android/app/src/main/res/values/arrays.xml

@@ -507,6 +507,17 @@
         <item>4</item>
     </integer-array>
 
+    <string-array name="themeModeEntries">
+        <item>Follow System</item>
+        <item>Light</item>
+        <item>Dark</item>
+    </string-array>
+    <integer-array name="themeModeValues">
+        <item>-1</item>
+        <item>1</item>
+        <item>2</item>
+    </integer-array>
+
     <string-array name="synchronizeGpuThreadEntries">
         <item>Never</item>
         <item>On Idle Skipping</item>

Source/Android/app/src/main/res/values/bools.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <bool name="lightSystemBars">true</bool>
-</resources>

Source/Android/app/src/main/res/values/strings.xml

@@ -196,6 +196,7 @@
     <string name="show_titles_in_game_list">Show Titles in Game List</string>
     <string name="show_titles_in_game_list_description">Show the title and creator below each game cover.</string>
     <string name="change_theme">Change App Theme</string>
+    <string name="change_theme_mode">Change Theme Mode</string>
 
     <!-- Online Update Region Select Fragment -->
     <string name="region_select_title">Please select a region</string>

Source/Android/app/src/main/res/values/styles.xml

@@ -42,7 +42,7 @@
 
     <style name="DolphinTVDialog" parent="Theme.Material3.DayNight.Dialog.Alert">
         <item name="colorSurface">@color/dolphin_inverseOnSurface</item>
-        <item name="colorPrimary">@color/dolphin_primary</item>
+        <item name="colorPrimary">@color/dolphin_blue</item>
     </style>
 
     <style name="DolphinButton" parent="Widget.Material3.Button.TextButton.Dialog">

Source/Android/app/src/main/res/values/themes.xml

@@ -47,9 +47,6 @@
         <item name="android:windowAllowEnterTransitionOverlap">true</item>
         <item name="android:windowAllowReturnTransitionOverlap">true</item>
 
-        <item name="homeAsUpIndicator">@drawable/ic_back</item>
-
-        <item name="android:windowLightStatusBar" tools:targetApi="m">@bool/lightSystemBars</item>
         <item name="android:windowLayoutInDisplayCutoutMode" tools:targetApi="o_mr1">default</item>
 
         <item name="materialAlertDialogTheme">@style/DolphinMaterialDialog</item>
@@ -58,7 +55,7 @@
         <item name="materialDividerStyle">@style/DolphinDivider</item>
     </style>
 
-    <!-- Trick for API >= 27 specific changes -->
+    <!-- Trick for API >= 29 specific changes -->
     <style name="Theme.Dolphin.Main" parent="Theme.Dolphin" />
 
     <style name="Theme.Dolphin.Main.Material" parent="Theme.Dolphin.Main">

Source/Core/Core/ConfigLoaders/IsSettingSaveable.cpp

@@ -39,10 +39,12 @@ bool IsSettingSaveable(const Config::Location& config_location)
     // TODO: Kill the current Android controller mappings system
     if (config_location.section == "Android")
     {
-      static constexpr std::array<const char*, 12> android_setting_saveable = {
+      static constexpr std::array<const char*, 13> android_setting_saveable = {
-          "ControlScale",    "ControlOpacity",   "EmulationOrientation", "JoystickRelCenter",
+          "ControlScale",      "ControlOpacity",   "EmulationOrientation",
-          "LastPlatformTab", "MotionControls",   "PhoneRumble",          "ShowInputOverlay",
+          "JoystickRelCenter", "LastPlatformTab",  "MotionControls",
-          "IRMode",          "IRAlwaysRecenter", "ShowGameTitles",       "InterfaceTheme"};
+          "PhoneRumble",       "ShowInputOverlay", "IRMode",
+          "IRAlwaysRecenter",  "ShowGameTitles",   "InterfaceTheme",
+          "InterfaceThemeMode"};
 
       return std::any_of(
           android_setting_saveable.cbegin(), android_setting_saveable.cend(),