Moves AlertDialogs imports to AndroidX and fix tabs background color

Original commit by rafaeltoledo for Dolphin-emu.

src/android/app/src/main/java/org/citra/citra_emu/NativeLibrary.java

@@ -6,7 +6,8 @@
 
 package org.citra.citra_emu;
 
-import android.app.AlertDialog;
+import androidx.appcompat.app.AlertDialog;
+
 import android.content.res.Configuration;
 import android.text.Html;
 import android.text.method.LinkMovementMethod;

src/android/app/src/main/java/org/citra/citra_emu/activities/EmulationActivity.java

@@ -1,13 +1,17 @@
 package org.citra.citra_emu.activities;
 
 import android.app.Activity;
-import android.app.AlertDialog;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
+
 import android.app.PendingIntent;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.os.Handler;
 import android.preference.PreferenceManager;
+
 import androidx.annotation.IntDef;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
@@ -15,6 +19,7 @@ import androidx.fragment.app.FragmentManager;
 import androidx.core.app.NotificationCompat;
 import androidx.core.app.NotificationManagerCompat;
 import androidx.appcompat.app.AppCompatActivity;
+
 import android.util.SparseIntArray;
 import android.view.InputDevice;
 import android.view.KeyEvent;
@@ -206,7 +211,7 @@ public final class EmulationActivity extends AppCompatActivity {
     }
 
     @Override
-    protected void onSaveInstanceState(Bundle outState) {
+    protected void onSaveInstanceState(@NonNull Bundle outState) {
         outState.putString(EXTRA_SELECTED_GAME, mPath);
         outState.putString(EXTRA_SELECTED_TITLE, mSelectedTitle);
         super.onSaveInstanceState(outState);
@@ -249,10 +254,6 @@ public final class EmulationActivity extends AppCompatActivity {
         }
     }
 
-    @Override
-    protected void onActivityResult(int requestCode, int resultCode, Intent result) {
-    }
-
     private void enableFullscreenImmersive() {
         // It would be nice to use IMMERSIVE_STICKY, but that doesn't show the toolbar.
         mDecorView.setSystemUiVisibility(

src/android/app/src/main/java/org/citra/citra_emu/dialogs/MotionAlertDialog.java

@@ -1,6 +1,8 @@
 package org.citra.citra_emu.dialogs;
 
-import android.app.AlertDialog;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
+
 import android.content.Context;
 import android.view.InputDevice;
 import android.view.KeyEvent;
@@ -16,8 +18,7 @@ import java.util.List;
  * {@link AlertDialog} derivative that listens for
  * motion events from controllers and joysticks.
  */
-public final class MotionAlertDialog extends AlertDialog
+public final class MotionAlertDialog extends AlertDialog {
-{
     // The selected input preference
     private final InputBindingSetting setting;
     private final ArrayList<Float> mPreviousValues = new ArrayList<>();
@@ -30,18 +31,15 @@ public final class MotionAlertDialog extends AlertDialog
      * @param context The current {@link Context}.
      * @param setting The Preference to show this dialog for.
      */
-    public MotionAlertDialog(Context context, InputBindingSetting setting)
+    public MotionAlertDialog(Context context, InputBindingSetting setting) {
-    {
         super(context);
 
         this.setting = setting;
     }
 
-    public boolean onKeyEvent(int keyCode, KeyEvent event)
+    public boolean onKeyEvent(int keyCode, KeyEvent event) {
-    {
         Log.debug("[MotionAlertDialog] Received key event: " + event.getAction());
-        switch (event.getAction())
+        switch (event.getAction()) {
-        {
             case KeyEvent.ACTION_UP:
                 setting.onKeyInput(event);
                 dismiss();
@@ -54,27 +52,23 @@ public final class MotionAlertDialog extends AlertDialog
     }
 
     @Override
-    public boolean onKeyLongPress(int keyCode, KeyEvent event)
+    public boolean onKeyLongPress(int keyCode, @NonNull KeyEvent event) {
-    {
         return super.onKeyLongPress(keyCode, event);
     }
 
     @Override
-    public boolean dispatchKeyEvent(KeyEvent event)
+    public boolean dispatchKeyEvent(KeyEvent event) {
-    {
         // Handle this key if we care about it, otherwise pass it down the framework
         return onKeyEvent(event.getKeyCode(), event) || super.dispatchKeyEvent(event);
     }
 
     @Override
-    public boolean dispatchGenericMotionEvent(MotionEvent event)
+    public boolean dispatchGenericMotionEvent(@NonNull MotionEvent event) {
-    {
         // Handle this event if we care about it, otherwise pass it down the framework
         return onMotionEvent(event) || super.dispatchGenericMotionEvent(event);
     }
 
-    private boolean onMotionEvent(MotionEvent event)
+    private boolean onMotionEvent(MotionEvent event) {
-    {
         if ((event.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) == 0)
             return false;
         if (event.getAction() != MotionEvent.ACTION_MOVE)
@@ -84,8 +78,7 @@ public final class MotionAlertDialog extends AlertDialog
 
         List<InputDevice.MotionRange> motionRanges = input.getMotionRanges();
 
-        if (input.getId() != mPrevDeviceId)
+        if (input.getId() != mPrevDeviceId) {
-        {
             mPreviousValues.clear();
         }
         mPrevDeviceId = input.getId();
@@ -95,34 +88,27 @@ public final class MotionAlertDialog extends AlertDialog
         float axisMoveValue = 0.0f;
         InputDevice.MotionRange lastMovedRange = null;
         char lastMovedDir = '?';
-        if (mWaitingForEvent)
+        if (mWaitingForEvent) {
-        {
+            for (int i = 0; i < motionRanges.size(); i++) {
-            for (int i = 0; i < motionRanges.size(); i++)
-            {
                 InputDevice.MotionRange range = motionRanges.get(i);
                 int axis = range.getAxis();
                 float origValue = event.getAxisValue(axis);
                 float value = origValue;//ControllerMappingHelper.scaleAxis(input, axis, origValue);
-                if (firstEvent)
+                if (firstEvent) {
-                {
                     mPreviousValues.add(value);
-                }
+                } else {
-                else
-                {
                     float previousValue = mPreviousValues.get(i);
 
                     // Only handle the axes that are not neutral (more than 0.5)
                     // but ignore any axis that has a constant value (e.g. always 1)
-                    if (Math.abs(value) > 0.5f && value != previousValue)
+                    if (Math.abs(value) > 0.5f && value != previousValue) {
-                    {
                         // It is common to have multiple axes with the same physical input. For example,
                         // shoulder butters are provided as both AXIS_LTRIGGER and AXIS_BRAKE.
                         // To handle this, we ignore an axis motion that's the exact same as a motion
                         // we already saw. This way, we ignore axes with two names, but catch the case
                         // where a joystick is moved in two directions.
                         // ref: bottom of https://developer.android.com/training/game-controllers/controller-input.html
-                        if (value != axisMoveValue)
+                        if (value != axisMoveValue) {
-                        {
                             axisMoveValue = value;
                             numMovedAxis++;
                             lastMovedRange = range;
@@ -132,8 +118,7 @@ public final class MotionAlertDialog extends AlertDialog
                     // Special case for d-pads (axis value jumps between 0 and 1 without any values
                     // in between). Without this, the user would need to press the d-pad twice
                     // due to the first press being caught by the "if (firstEvent)" case further up.
-                    else if (Math.abs(value) < 0.25f && Math.abs(previousValue) > 0.75f)
+                    else if (Math.abs(value) < 0.25f && Math.abs(previousValue) > 0.75f) {
-                    {
                         numMovedAxis++;
                         lastMovedRange = range;
                         lastMovedDir = previousValue < 0.0f ? '-' : '+';
@@ -144,8 +129,7 @@ public final class MotionAlertDialog extends AlertDialog
             }
 
             // If only one axis moved, that's the winner.
-            if (numMovedAxis == 1)
+            if (numMovedAxis == 1) {
-            {
                 mWaitingForEvent = false;
                 setting.onMotionInput(input, lastMovedRange, lastMovedDir);
                 dismiss();

src/android/app/src/main/java/org/citra/citra_emu/ui/settings/SettingsActivity.java

@@ -6,9 +6,12 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.os.Bundle;
 import android.provider.Settings;
+
+import androidx.annotation.NonNull;
 import androidx.fragment.app.FragmentTransaction;
 import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import androidx.appcompat.app.AppCompatActivity;
+
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
@@ -56,7 +59,7 @@ public final class SettingsActivity extends AppCompatActivity implements Setting
     }
 
     @Override
-    public boolean onSupportNavigateUp(){
+    public boolean onSupportNavigateUp() {
         onBackPressed();
 
         return true;
@@ -76,7 +79,7 @@ public final class SettingsActivity extends AppCompatActivity implements Setting
     }
 
     @Override
-    protected void onSaveInstanceState(Bundle outState) {
+    protected void onSaveInstanceState(@NonNull Bundle outState) {
         // Critical: If super method is not called, rotations will be busted.
         super.onSaveInstanceState(outState);
         mPresenter.saveState(outState);

src/android/app/src/main/java/org/citra/citra_emu/utils/PermissionsHandler.java

@@ -4,6 +4,7 @@ import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.os.Build;
+
 import androidx.fragment.app.FragmentActivity;
 import androidx.core.content.ContextCompat;
 

src/android/app/src/main/java/org/citra/citra_emu/utils/StartupHandler.java

@@ -1,9 +1,12 @@
 package org.citra.citra_emu.utils;
 
-import android.app.AlertDialog;
+import androidx.appcompat.app.AlertDialog;
+
 import android.content.Intent;
 import android.os.Bundle;
+
 import androidx.fragment.app.FragmentActivity;
+
 import android.text.TextUtils;
 
 import org.citra.citra_emu.R;

src/android/app/src/main/res/layout/activity_main.xml

@@ -5,11 +5,17 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <FrameLayout
+        android:id="@+id/games_platform_frame"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
     <com.google.android.material.appbar.AppBarLayout
         android:id="@+id/appbar"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" >
+        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
 
         <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar_main"
@@ -19,10 +25,4 @@
 
     </com.google.android.material.appbar.AppBarLayout>
 
-    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        android:id="@+id/games_platform_frame"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
-
 </androidx.coordinatorlayout.widget.CoordinatorLayout>