Implement Material You theming support

Material You is disabled by default, it can be toggled in settings.

app/src/main/java/emu/skyline/SkylineApplication.kt

@@ -7,6 +7,8 @@ package emu.skyline
 
 import android.app.Application
 import android.content.Context
+import com.google.android.material.color.DynamicColors
+import com.google.android.material.color.DynamicColorsOptions
 import dagger.hilt.android.HiltAndroidApp
 import emu.skyline.di.getSettings
 import java.io.File
@@ -39,5 +41,8 @@ class SkylineApplication : Application() {
         val publicAppFilesPath = applicationContext.getPublicFilesDir().canonicalPath
         File("$publicAppFilesPath/logs/").mkdirs()
         initializeLog("$publicAppFilesPath/", getSettings().logLevel)
+
+        val dynamicColorsOptions = DynamicColorsOptions.Builder().setPrecondition { _, _ -> getSettings().useMaterialYou }.build()
+        DynamicColors.applyToActivitiesIfAvailable(this, dynamicColorsOptions)
     }
 }

app/src/main/java/emu/skyline/settings/AppSettings.kt

@@ -21,6 +21,7 @@ class AppSettings @Inject constructor(@ApplicationContext private val context :
 
     // Appearance
     var appTheme by sharedPreferences(context, 2)
+    var useMaterialYou by sharedPreferences(context, false)
     var layoutType by sharedPreferences(context, 1)
     var sortAppsBy by sharedPreferences(context, 0)
     var groupByFormat by sharedPreferences(context, true)

app/src/main/java/emu/skyline/settings/GlobalSettingsFragment.kt

@@ -5,6 +5,7 @@
 
 package emu.skyline.settings
 
+import android.content.Intent
 import android.os.Bundle
 import android.view.View
 import androidx.preference.Preference
@@ -12,6 +13,7 @@ import androidx.preference.PreferenceCategory
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.TwoStatePreference
 import emu.skyline.BuildConfig
+import emu.skyline.MainActivity
 import emu.skyline.R
 import emu.skyline.utils.GpuDriverHelper
 import emu.skyline.utils.WindowInsetsHelper
@@ -35,6 +37,13 @@ class GlobalSettingsFragment : PreferenceFragmentCompat() {
         addPreferencesFromResource(R.xml.input_preferences)
         addPreferencesFromResource(R.xml.credits_preferences)
 
+        // Re-launch the app if Material You is toggled
+        findPreference<Preference>("use_material_you")?.setOnPreferenceChangeListener { _, _ ->
+            requireActivity().finishAffinity()
+            startActivity(Intent(requireContext(), MainActivity::class.java))
+            true
+        }
+
         // Uncheck `disable_frame_throttling` if `force_triple_buffering` gets disabled
         val disableFrameThrottlingPref = findPreference<TwoStatePreference>("disable_frame_throttling")!!
         findPreference<TwoStatePreference>("force_triple_buffering")?.setOnPreferenceChangeListener { _, newValue ->

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

@@ -44,6 +44,9 @@
     <!-- Settings - Appearance -->
     <string name="appearance">Appearance</string>
     <string name="theme">Theme</string>
+    <string name="use_material_you">Use Material You</string>
+    <string name="use_material_you_desc_off">Skyline colors will be used</string>
+    <string name="use_material_you_desc_on">Material You will be used</string>
     <string name="app_language">App Language</string>
     <string name="app_language_default">Use System Default</string>
     <string name="layout_type">Game Display Layout</string>

app/src/main/res/xml/app_preferences.xml

@@ -28,6 +28,12 @@
             app:key="app_theme"
             app:title="@string/theme"
             app:useSimpleSummaryProvider="true" />
+        <SwitchPreferenceCompat
+            android:defaultValue="false"
+            app:key="use_material_you"
+            app:summaryOff="@string/use_material_you_desc_off"
+            app:summaryOn="@string/use_material_you_desc_on"
+            app:title="@string/use_material_you" />
         <emu.skyline.preference.LanguagePreference
             app:key="app_language"
             app:persistent="false"