Android: Greatly simplify MotionAlertDialog theming

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/dialogs/MotionAlertDialog.java

@@ -3,29 +3,13 @@
 package org.dolphinemu.dolphinemu.dialogs;
 
 import android.content.Context;
-import android.content.res.ColorStateList;
-import android.content.res.Resources;
-import android.graphics.Rect;
-import android.graphics.drawable.Drawable;
-import android.os.Build;
-import android.util.TypedValue;
 import android.view.InputDevice;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 
-import androidx.annotation.AttrRes;
 import androidx.annotation.NonNull;
-import androidx.annotation.StyleRes;
 import androidx.appcompat.app.AlertDialog;
-import androidx.appcompat.view.ContextThemeWrapper;
-import androidx.core.view.ViewCompat;
 
-import com.google.android.material.color.MaterialColors;
-import com.google.android.material.dialog.MaterialDialogs;
-import com.google.android.material.resources.MaterialAttributes;
-import com.google.android.material.shape.MaterialShapeDrawable;
-
-import org.dolphinemu.dolphinemu.R;
 import org.dolphinemu.dolphinemu.features.settings.model.view.InputBindingSetting;
 import org.dolphinemu.dolphinemu.features.settings.ui.SettingsAdapter;
 import org.dolphinemu.dolphinemu.utils.ControllerMappingHelper;
@@ -34,20 +18,12 @@ import org.dolphinemu.dolphinemu.utils.Log;
 import java.util.ArrayList;
 import java.util.List;
 
-import static com.google.android.material.theme.overlay.MaterialThemeOverlay.wrap;
-
 /**
  * {@link AlertDialog} derivative that listens for
  * motion events from controllers and joysticks.
  */
 public final class MotionAlertDialog extends AlertDialog
 {
-  @AttrRes private static final int DEF_STYLE_ATTR = R.attr.alertDialogStyle;
-  @StyleRes private static final int DEF_STYLE_RES = R.style.MaterialAlertDialog_MaterialComponents;
-
-  @AttrRes
-  private static final int MATERIAL_ALERT_DIALOG_THEME_OVERLAY = R.attr.materialAlertDialogTheme;
-
   // The selected input preference
   private final InputBindingSetting setting;
   private final ArrayList<Float> mPreviousValues = new ArrayList<>();
@@ -63,63 +39,10 @@ public final class MotionAlertDialog extends AlertDialog
    */
   public MotionAlertDialog(Context context, InputBindingSetting setting, SettingsAdapter adapter)
   {
-    super(createMaterialAlertDialogThemedContext(context));
+    super(context);
 
     this.setting = setting;
     mAdapter = adapter;
-
-    // Using code from MaterialAlertDialogBuilder allows us to nearly perfectly recreate its look
-    context = getContext();
-    Resources.Theme theme = context.getTheme();
-
-    int surfaceColor =
-            MaterialColors.getColor(context, R.attr.colorSurface, getClass().getCanonicalName());
-    MaterialShapeDrawable materialShapeDrawable =
-            new MaterialShapeDrawable(context, null, R.attr.alertDialogStyle,
-                    R.style.MaterialAlertDialog_MaterialComponents);
-    materialShapeDrawable.initializeElevationOverlay(context);
-    materialShapeDrawable.setFillColor(ColorStateList.valueOf(surfaceColor));
-    materialShapeDrawable.setElevation(ViewCompat.getElevation(this.getWindow().getDecorView()));
-    this.getWindow().setBackgroundDrawable(materialShapeDrawable);
-
-    Rect backgroundInsets =
-            MaterialDialogs.getDialogBackgroundInsets(context, R.attr.alertDialogStyle,
-                    R.style.MaterialAlertDialog_MaterialComponents);
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P)
-    {
-      TypedValue dialogCornerRadiusValue = new TypedValue();
-      theme.resolveAttribute(android.R.attr.dialogCornerRadius, dialogCornerRadiusValue, true);
-      float dialogCornerRadius =
-              dialogCornerRadiusValue.getDimension(context.getResources().getDisplayMetrics());
-      if (dialogCornerRadiusValue.type == TypedValue.TYPE_DIMENSION && dialogCornerRadius >= 0)
-      {
-        materialShapeDrawable.setCornerSize(dialogCornerRadius);
-      }
-    }
-    Drawable insetDrawable = MaterialDialogs.insetDrawable(materialShapeDrawable, backgroundInsets);
-    this.getWindow().setBackgroundDrawable(insetDrawable);
-  }
-
-  private static Context createMaterialAlertDialogThemedContext(@NonNull Context context)
-  {
-    int themeOverlayId = getMaterialAlertDialogThemeOverlay(context);
-    Context themedContext = wrap(context, null, DEF_STYLE_ATTR, DEF_STYLE_RES);
-    if (themeOverlayId == 0)
-    {
-      return themedContext;
-    }
-    return new ContextThemeWrapper(themedContext, themeOverlayId);
-  }
-
-  private static int getMaterialAlertDialogThemeOverlay(@NonNull Context context)
-  {
-    TypedValue materialAlertDialogThemeOverlay =
-            MaterialAttributes.resolve(context, MATERIAL_ALERT_DIALOG_THEME_OVERLAY);
-    if (materialAlertDialogThemeOverlay == null)
-    {
-      return 0;
-    }
-    return materialAlertDialogThemeOverlay.data;
   }
 
   public boolean onKeyEvent(int keyCode, KeyEvent event)

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

@@ -5,17 +5,23 @@ package org.dolphinemu.dolphinemu.features.settings.ui;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.graphics.PorterDuff;
+import android.graphics.drawable.Drawable;
 import android.os.Build;
 import android.provider.DocumentsContract;
 import android.view.LayoutInflater;
 import android.view.ViewGroup;
 import android.widget.TextView;
 
+import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
+import androidx.core.content.ContextCompat;
 import androidx.recyclerview.widget.RecyclerView;
 
+import com.google.android.material.color.MaterialColors;
 import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+import com.google.android.material.elevation.ElevationOverlayProvider;
 import com.google.android.material.slider.Slider;
 import com.google.android.material.textfield.TextInputEditText;
 
@@ -300,6 +306,14 @@ public final class SettingsAdapter extends RecyclerView.Adapter<SettingViewHolde
   public void onInputBindingClick(final InputBindingSetting item, final int position)
   {
     final MotionAlertDialog dialog = new MotionAlertDialog(mContext, item, this);
+
+    Drawable background = ContextCompat.getDrawable(mContext, R.drawable.dialog_round);
+    @ColorInt int color = new ElevationOverlayProvider(dialog.getContext()).compositeOverlay(
+            MaterialColors.getColor(dialog.getWindow().getDecorView(), R.attr.colorSurface),
+            dialog.getWindow().getDecorView().getElevation());
+    background.setColorFilter(color, PorterDuff.Mode.SRC_ATOP);
+    dialog.getWindow().setBackgroundDrawable(background);
+
     dialog.setTitle(R.string.input_binding);
     dialog.setMessage(String.format(mContext.getString(
                     item instanceof RumbleBindingSetting ?

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

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid
+        android:color="@android:color/white"/>
+    <corners
+        android:radius="28dp" />
+    <padding
+        android:left="4dp"
+        android:top="4dp"
+        android:right="4dp"
+        android:bottom="4dp" />
+</shape>