Android: Use enableEdgeToEdge

Dolphin has been using edge-to-edge rendering for a little while now,
but it has required a bit of manual work. Now that edge-to-edge is
becoming something expected of apps in Android 15, there's a nicer API
we can use.

Tested on Android 8, 11 and 13, with no changes in behavior noted.

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/activities/ConvertActivity.kt

@@ -6,11 +6,10 @@ import android.content.Context
 import android.content.Intent
 import android.os.Bundle
 import android.view.View
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
-import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
-import com.google.android.material.color.MaterialColors
 import org.dolphinemu.dolphinemu.R
 import org.dolphinemu.dolphinemu.databinding.ActivityConvertBinding
 import org.dolphinemu.dolphinemu.fragments.ConvertFragment
@@ -23,14 +22,13 @@ class ConvertActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         ThemeHelper.setTheme(this)
+        enableEdgeToEdge()
 
         super.onCreate(savedInstanceState)
 
         binding = ActivityConvertBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
-        WindowCompat.setDecorFitsSystemWindows(window, false)
-
         val path = intent.getStringExtra(ARG_GAME_PATH)
 
         var fragment = supportFragmentManager
@@ -62,10 +60,6 @@ class ConvertActivity : AppCompatActivity() {
             binding.scrollViewConvert.setPadding(insets.left, 0, insets.right, insets.bottom)
 
             InsetsHelper.applyNavbarWorkaround(insets.bottom, binding.workaroundView)
-            ThemeHelper.setNavigationBarColor(
-                this,
-                MaterialColors.getColor(binding.appbarConvert, R.attr.colorSurface)
-            )
 
             windowInsets
         }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/activities/UserDataActivity.kt

@@ -10,12 +10,11 @@ import android.os.Build
 import android.os.Bundle
 import android.provider.DocumentsContract
 import android.view.View
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
-import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.lifecycle.ViewModelProvider
-import com.google.android.material.color.MaterialColors
 import org.dolphinemu.dolphinemu.R
 import org.dolphinemu.dolphinemu.databinding.ActivityUserDataBinding
 import org.dolphinemu.dolphinemu.dialogs.NotificationDialog
@@ -25,7 +24,6 @@ import org.dolphinemu.dolphinemu.features.DocumentProvider
 import org.dolphinemu.dolphinemu.model.TaskViewModel
 import org.dolphinemu.dolphinemu.utils.*
 import org.dolphinemu.dolphinemu.utils.ThemeHelper.enableScrollTint
-import org.dolphinemu.dolphinemu.utils.ThemeHelper.setNavigationBarColor
 import java.io.File
 import java.io.FileInputStream
 import java.io.FileOutputStream
@@ -43,14 +41,13 @@ class UserDataActivity : AppCompatActivity() {
         taskViewModel = ViewModelProvider(this)[TaskViewModel::class.java]
 
         ThemeHelper.setTheme(this)
+        enableEdgeToEdge()
 
         super.onCreate(savedInstanceState)
 
         mBinding = ActivityUserDataBinding.inflate(layoutInflater)
         setContentView(mBinding.root)
 
-        WindowCompat.setDecorFitsSystemWindows(window, false)
-
         val android7 = Build.VERSION.SDK_INT >= Build.VERSION_CODES.N
         val android10 = Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q
         val android11 = Build.VERSION.SDK_INT >= Build.VERSION_CODES.R
@@ -334,10 +331,6 @@ class UserDataActivity : AppCompatActivity() {
             mBinding.scrollViewUserData.setPadding(insets.left, 0, insets.right, insets.bottom)
 
             InsetsHelper.applyNavbarWorkaround(insets.bottom, mBinding.workaroundView)
-            setNavigationBarColor(
-                this,
-                MaterialColors.getColor(mBinding.appbarUserData, R.attr.colorSurface)
-            )
             windowInsets
         }
     }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/cheats/ui/CheatsActivity.kt

@@ -10,10 +10,10 @@ import android.view.Menu
 import android.view.View
 import android.view.ViewGroup
 import android.view.ViewGroup.MarginLayoutParams
+import androidx.activity.enableEdgeToEdge
 import androidx.annotation.ColorInt
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
-import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsAnimationCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.lifecycle.ViewModelProvider
@@ -51,6 +51,7 @@ class CheatsActivity : AppCompatActivity(), PanelSlideListener {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         ThemeHelper.setTheme(this)
+        enableEdgeToEdge()
 
         super.onCreate(savedInstanceState)
 
@@ -69,8 +70,6 @@ class CheatsActivity : AppCompatActivity(), PanelSlideListener {
         binding = ActivityCheatsBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
-        WindowCompat.setDecorFitsSystemWindows(window, false)
-
         cheatListLastFocus = binding.cheatList
         cheatDetailsLastFocus = binding.cheatDetails
 
@@ -225,10 +224,6 @@ class CheatsActivity : AppCompatActivity(), PanelSlideListener {
             binding.cheatDetails.layoutParams = mlpDetails
 
             InsetsHelper.applyNavbarWorkaround(barInsets.bottom, binding.workaroundView)
-            ThemeHelper.setNavigationBarColor(
-                this,
-                MaterialColors.getColor(binding.appbarCheats, R.attr.colorSurface)
-            )
 
             windowInsets
         }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/riivolution/ui/RiivolutionBootActivity.kt

@@ -6,13 +6,12 @@ import android.content.Context
 import android.content.Intent
 import android.os.Bundle
 import android.view.View
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
-import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.LinearLayoutManager
-import com.google.android.material.color.MaterialColors
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
@@ -31,14 +30,13 @@ class RiivolutionBootActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         ThemeHelper.setTheme(this)
+        enableEdgeToEdge()
 
         super.onCreate(savedInstanceState)
 
         binding = ActivityRiivolutionBootBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
-        WindowCompat.setDecorFitsSystemWindows(window, false)
-
         val path = intent.getStringExtra(ARG_GAME_PATH)
         val gameId = intent.getStringExtra(ARG_GAME_ID)
         val revision = intent.getIntExtra(ARG_REVISION, -1)
@@ -96,10 +94,6 @@ class RiivolutionBootActivity : AppCompatActivity() {
             binding.scrollViewRiivolution.setPadding(insets.left, 0, insets.right, insets.bottom)
 
             InsetsHelper.applyNavbarWorkaround(insets.bottom, binding.workaroundView)
-            ThemeHelper.setNavigationBarColor(
-                this,
-                MaterialColors.getColor(binding.appbarRiivolution, R.attr.colorSurface)
-            )
 
             windowInsets
         }

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

@@ -14,17 +14,16 @@ import android.os.Bundle
 import android.view.Menu
 import android.view.View
 import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
-import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.fragment.app.DialogFragment
 import androidx.lifecycle.ViewModelProvider
 import com.google.android.material.appbar.CollapsingToolbarLayout
 import com.google.android.material.color.MaterialColors
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
-import com.google.android.material.snackbar.Snackbar
 import org.dolphinemu.dolphinemu.NativeLibrary
 import org.dolphinemu.dolphinemu.R
 import org.dolphinemu.dolphinemu.databinding.ActivitySettingsBinding
@@ -32,11 +31,9 @@ import org.dolphinemu.dolphinemu.features.settings.model.Settings
 import org.dolphinemu.dolphinemu.features.settings.ui.SettingsFragment.Companion.newInstance
 import org.dolphinemu.dolphinemu.ui.main.MainPresenter
 import org.dolphinemu.dolphinemu.utils.FileBrowserHelper
-import org.dolphinemu.dolphinemu.utils.GpuDriverInstallResult
 import org.dolphinemu.dolphinemu.utils.InsetsHelper
 import org.dolphinemu.dolphinemu.utils.SerializableHelper.serializable
 import org.dolphinemu.dolphinemu.utils.ThemeHelper.enableScrollTint
-import org.dolphinemu.dolphinemu.utils.ThemeHelper.setNavigationBarColor
 import org.dolphinemu.dolphinemu.utils.ThemeHelper.setTheme
 
 class SettingsActivity : AppCompatActivity(), SettingsActivityView {
@@ -55,6 +52,7 @@ class SettingsActivity : AppCompatActivity(), SettingsActivityView {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         setTheme(this)
+        enableEdgeToEdge()
 
         super.onCreate(savedInstanceState)
 
@@ -69,8 +67,6 @@ class SettingsActivity : AppCompatActivity(), SettingsActivityView {
         binding = ActivitySettingsBinding.inflate(layoutInflater)
         setContentView(binding!!.root)
 
-        WindowCompat.setDecorFitsSystemWindows(window, false)
-
         val launcher = intent
         var gameID = launcher.getStringExtra(ARG_GAME_ID)
         if (gameID == null) gameID = ""
@@ -291,10 +287,6 @@ class SettingsActivity : AppCompatActivity(), SettingsActivityView {
             )
 
             InsetsHelper.applyNavbarWorkaround(insets.bottom, binding!!.workaroundView)
-            setNavigationBarColor(
-                this,
-                MaterialColors.getColor(binding!!.appbarSettings, R.attr.colorSurface)
-            )
 
             windowInsets
         }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/main/MainActivity.kt

@@ -9,14 +9,13 @@ import android.view.Menu
 import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup.MarginLayoutParams
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import androidx.core.view.ViewCompat
-import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout.OnRefreshListener
 import com.google.android.material.appbar.AppBarLayout
-import com.google.android.material.color.MaterialColors
 import com.google.android.material.tabs.TabLayout
 import org.dolphinemu.dolphinemu.R
 import org.dolphinemu.dolphinemu.activities.EmulationActivity
@@ -53,13 +52,13 @@ class MainActivity : AppCompatActivity(), MainView, OnRefreshListener, ThemeProv
         installSplashScreen().setKeepOnScreenCondition { !DirectoryInitialization.areDolphinDirectoriesReady() }
 
         ThemeHelper.setTheme(this)
+        enableEdgeToEdge()
 
         super.onCreate(savedInstanceState)
 
         binding = ActivityMainBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
-        WindowCompat.setDecorFitsSystemWindows(window, false)
         setInsets()
         ThemeHelper.enableStatusBarScrollTint(this, binding.appbarMain)
 
@@ -330,10 +329,6 @@ class MainActivity : AppCompatActivity(), MainView, OnRefreshListener, ThemeProv
             binding.pagerPlatforms.setPadding(insets.left, 0, insets.right, 0)
 
             InsetsHelper.applyNavbarWorkaround(insets.bottom, binding.workaroundView)
-            ThemeHelper.setNavigationBarColor(
-                this,
-                MaterialColors.getColor(binding.appbarMain, R.attr.colorSurface)
-            )
 
             windowInsets
         }

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

@@ -1,6 +1,5 @@
 package org.dolphinemu.dolphinemu.utils
 
-import android.app.Activity
 import androidx.appcompat.app.AppCompatActivity
 import org.dolphinemu.dolphinemu.R
 import android.os.Build
@@ -14,11 +13,8 @@ import com.google.android.material.appbar.MaterialToolbar
 import com.google.android.material.appbar.AppBarLayout
 import com.google.android.material.elevation.ElevationOverlayProvider
 import com.google.android.material.color.MaterialColors
-import android.graphics.Color
 import androidx.annotation.ColorInt
-import androidx.annotation.RequiresApi
 import androidx.preference.PreferenceManager
-import kotlin.math.roundToInt
 
 object ThemeHelper {
 
@@ -32,8 +28,6 @@ object ThemeHelper {
     const val GREEN = 3
     const val PINK = 4
 
-    const val NAV_BAR_ALPHA = 0.9f
-
     @JvmStatic
     fun setTheme(activity: AppCompatActivity) {
         // We have to use shared preferences in addition to Dolphin's settings to guarantee that the
@@ -166,32 +160,6 @@ object ThemeHelper {
         }
     }
 
-    @JvmStatic
-    fun setNavigationBarColor(activity: Activity, @ColorInt color: Int) {
-        val gestureType = InsetsHelper.getSystemGestureType(activity.applicationContext)
-        val orientation = activity.resources.configuration.orientation
-
-        // Use black if the Android version is too low to support changing button colors
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O_MR1) {
-            activity.window.navigationBarColor =
-                ContextCompat.getColor(activity.applicationContext, android.R.color.black)
-        } else if ((gestureType == InsetsHelper.THREE_BUTTON_NAVIGATION ||
-                    gestureType == InsetsHelper.TWO_BUTTON_NAVIGATION) &&
-            orientation == Configuration.ORIENTATION_LANDSCAPE
-        ) {
-            activity.window.navigationBarColor = color
-        } else if (gestureType == InsetsHelper.THREE_BUTTON_NAVIGATION ||
-            gestureType == InsetsHelper.TWO_BUTTON_NAVIGATION
-        ) {
-            activity.window.navigationBarColor = getColorWithOpacity(color, NAV_BAR_ALPHA)
-        } else {
-            activity.window.navigationBarColor = ContextCompat.getColor(
-                activity.applicationContext,
-                android.R.color.transparent
-            )
-        }
-    }
-
     @JvmStatic
     fun enableScrollTint(
         activity: AppCompatActivity, toolbar: MaterialToolbar, appBarLayout: AppBarLayout
@@ -232,13 +200,4 @@ object ThemeHelper {
             }
         }
     }
-
-    @RequiresApi(api = Build.VERSION_CODES.O_MR1)
-    @ColorInt
-    private fun getColorWithOpacity(@ColorInt color: Int, alphaFactor: Float): Int {
-        return Color.argb(
-            (alphaFactor * Color.alpha(color)).roundToInt(), Color.red(color),
-            Color.green(color), Color.blue(color)
-        )
-    }
 }