Android: Show transition animation when exiting game.

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/NativeLibrary.java

@@ -277,7 +277,7 @@ public final class NativeLibrary
 	public static void endEmulationActivity()
 	{
 		Log.v("DolphinEmu", "Ending EmulationActivity.");
-		mEmulationActivity.finish();
+		mEmulationActivity.exitWithAnimation();
 	}
 
 	public static void setEmulationActivity(EmulationActivity emulationActivity)

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/activities/EmulationActivity.java

@@ -29,11 +29,14 @@ public final class EmulationActivity extends AppCompatActivity
 {
 	private View mDecorView;
 	private ImageView mImageView;
-	private FrameLayout mFrameLayout;
+	private FrameLayout mFrameEmulation;
 
 	private boolean mDeviceHasTouchScreen;
 	private boolean mSystemUiVisible;
 
+	// So that MainActivity knows which view to invalidate before the return animation.
+	private int mPosition;
+
 	/**
 	 * Handlers are a way to pass a message to an Activity telling it to do something
 	 * on the UI thread. This Handler responds to any message, even blank ones, by
@@ -47,6 +50,8 @@ public final class EmulationActivity extends AppCompatActivity
 			hideSystemUI();
 		}
 	};
+	private String mScreenPath;
+	private FrameLayout mFrameContent;
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState)
@@ -92,15 +97,17 @@ public final class EmulationActivity extends AppCompatActivity
 		setContentView(R.layout.activity_emulation);
 
 		mImageView = (ImageView) findViewById(R.id.image_screenshot);
-		mFrameLayout = (FrameLayout) findViewById(R.id.frame_content);
+		mFrameContent = (FrameLayout) findViewById(R.id.frame_content);
+		mFrameEmulation = (FrameLayout) findViewById(R.id.frame_emulation_fragment);
 
 		Intent gameToEmulate = getIntent();
 		String path = gameToEmulate.getStringExtra("SelectedGame");
 		String title = gameToEmulate.getStringExtra("SelectedTitle");
-		String screenPath = gameToEmulate.getStringExtra("ScreenPath");
+		mScreenPath = gameToEmulate.getStringExtra("ScreenPath");
+		mPosition = gameToEmulate.getIntExtra("GridPosition", -1);
 
 		Picasso.with(this)
-				.load(screenPath)
+				.load(mScreenPath)
 				.noFade()
 				.noPlaceholder()
 				.into(mImageView, new Callback()
@@ -120,6 +127,7 @@ public final class EmulationActivity extends AppCompatActivity
 				});
 
 		mImageView.animate()
+				.withLayer()
 				.setStartDelay(2000)
 				.setDuration(500)
 				.alpha(0.0f)
@@ -128,7 +136,7 @@ public final class EmulationActivity extends AppCompatActivity
 					@Override
 					public void run()
 					{
-						mFrameLayout.setVisibility(View.VISIBLE);
+						mFrameEmulation.setVisibility(View.VISIBLE);
 					}
 				})
 				.withEndAction(new Runnable()
@@ -147,7 +155,7 @@ public final class EmulationActivity extends AppCompatActivity
 
 		// Add fragment to the activity - this triggers all its lifecycle callbacks.
 		getFragmentManager().beginTransaction()
-				.add(R.id.frame_content, emulationFragment, EmulationFragment.FRAGMENT_TAG)
+				.add(R.id.frame_emulation_fragment, emulationFragment, EmulationFragment.FRAGMENT_TAG)
 				.commit();
 	}
 
@@ -212,6 +220,59 @@ public final class EmulationActivity extends AppCompatActivity
 		}
 	}
 
+	public void exitWithAnimation()
+	{
+		runOnUiThread(new Runnable()
+		{
+			@Override
+			public void run()
+			{
+				Picasso.with(EmulationActivity.this)
+						.invalidate(mScreenPath);
+
+				Picasso.with(EmulationActivity.this)
+						.load(mScreenPath)
+						.noFade()
+						.noPlaceholder()
+						.into(mImageView, new Callback()
+						{
+							@Override
+							public void onSuccess()
+							{
+								showScreenshot();
+							}
+
+							@Override
+							public void onError()
+							{
+								finish();
+							}
+						});
+			}
+		});
+	}
+
+	private void showScreenshot()
+	{
+		mImageView.setVisibility(View.VISIBLE);
+		mImageView.animate()
+				.withLayer()
+				.setDuration(500)
+				.alpha(1.0f)
+				.withEndAction(afterShowingScreenshot);
+	}
+
+	private Runnable afterShowingScreenshot = new Runnable()
+	{
+		@Override
+		public void run()
+		{
+			mFrameContent.removeView(mFrameEmulation);
+			setResult(mPosition);
+			finishAfterTransition();
+		}
+	};
+
 	@Override
 	public boolean onCreateOptionsMenu(Menu menu)
 	{

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/activities/MainActivity.java

@@ -36,6 +36,7 @@ import org.dolphinemu.dolphinemu.services.AssetCopyService;
 public final class MainActivity extends AppCompatActivity implements LoaderManager.LoaderCallbacks<Cursor>
 {
 	private static final int REQUEST_ADD_DIRECTORY = 1;
+	public static final int REQUEST_EMULATE_GAME = 2;
 
 	/**
 	 * It is important to keep track of loader ID separately from platform ID (see Game.java)
@@ -115,6 +116,9 @@ public final class MainActivity extends AppCompatActivity implements LoaderManag
 	@Override
 	protected void onActivityResult(int requestCode, int resultCode, Intent result)
 	{
+		switch (requestCode)
+		{
+			case REQUEST_ADD_DIRECTORY:
 				// If the user picked a file, as opposed to just backing out.
 				if (resultCode == RESULT_OK)
 				{
@@ -125,6 +129,17 @@ public final class MainActivity extends AppCompatActivity implements LoaderManag
 						refreshFragment();
 					}
 				}
+				break;
+
+			case REQUEST_EMULATE_GAME:
+				// Invalidate Picasso image so that the new screenshot is animated in.
+				PlatformGamesFragment fragment = getPlatformFragment(mViewPager.getCurrentItem());
+
+				if (fragment != null)
+				{
+					fragment.refreshScreenshotAtPosition(resultCode);
+				}
+		}
 	}
 
 	@Override

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/adapters/GameAdapter.java

@@ -5,6 +5,7 @@ import android.app.ActivityOptions;
 import android.content.Intent;
 import android.database.Cursor;
 import android.database.DataSetObserver;
+import android.graphics.Bitmap;
 import android.graphics.Rect;
 import android.support.v7.widget.RecyclerView;
 import android.util.Log;
@@ -16,6 +17,7 @@ import com.squareup.picasso.Picasso;
 
 import org.dolphinemu.dolphinemu.R;
 import org.dolphinemu.dolphinemu.activities.EmulationActivity;
+import org.dolphinemu.dolphinemu.activities.MainActivity;
 import org.dolphinemu.dolphinemu.dialogs.GameDetailsDialog;
 import org.dolphinemu.dolphinemu.model.GameDatabase;
 import org.dolphinemu.dolphinemu.viewholders.GameViewHolder;
@@ -81,14 +83,15 @@ public final class GameAdapter extends RecyclerView.Adapter<GameViewHolder> impl
 			if (mCursor.moveToPosition(position))
 			{
 				String screenPath = mCursor.getString(GameDatabase.GAME_COLUMN_SCREENSHOT_PATH);
-				Picasso.with(holder.imageScreenshot.getContext())
-						.invalidate(screenPath);
 
 				// Fill in the view contents.
 				Picasso.with(holder.imageScreenshot.getContext())
 						.load(screenPath)
 						.fit()
 						.centerCrop()
+						.noFade()
+						.noPlaceholder()
+						.config(Bitmap.Config.RGB_565)
 						.error(R.drawable.no_banner)
 						.into(holder.imageScreenshot);
 
@@ -113,8 +116,6 @@ public final class GameAdapter extends RecyclerView.Adapter<GameViewHolder> impl
 		{
 			Log.e("DolphinEmu", "Can't bind view; dataset is not valid.");
 		}
-
-
 	}
 
 	/**
@@ -222,13 +223,16 @@ public final class GameAdapter extends RecyclerView.Adapter<GameViewHolder> impl
 		intent.putExtra("SelectedGame", holder.path);
 		intent.putExtra("SelectedTitle", holder.title);
 		intent.putExtra("ScreenPath", holder.screenshotPath);
+		intent.putExtra("GridPosition", holder.getAdapterPosition());
 
 		ActivityOptions options = ActivityOptions.makeSceneTransitionAnimation(
 				(Activity) view.getContext(),
 				holder.imageScreenshot,
 				"image_game_screenshot");
 
-		view.getContext().startActivity(intent, options.toBundle());
+		((Activity) view.getContext()).startActivityForResult(intent,
+				MainActivity.REQUEST_EMULATE_GAME,
+				options.toBundle());
 	}
 
 	/**

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/fragments/PlatformGamesFragment.java

@@ -1,12 +1,12 @@
 package org.dolphinemu.dolphinemu.fragments;
 
-import android.app.Activity;
 import android.app.Fragment;
 import android.app.LoaderManager;
 import android.content.Loader;
 import android.database.Cursor;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.support.v7.widget.DefaultItemAnimator;
 import android.support.v7.widget.GridLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.util.Log;
@@ -57,6 +57,15 @@ public class PlatformGamesFragment extends Fragment
 		RecyclerView.LayoutManager layoutManager = new GridLayoutManager(getActivity(),
 				getResources().getInteger(R.integer.game_grid_columns));
 		recyclerView.setLayoutManager(layoutManager);
+		recyclerView.setItemAnimator(new DefaultItemAnimator()
+		{
+			@Override
+			public boolean animateChange(RecyclerView.ViewHolder oldHolder, RecyclerView.ViewHolder newHolder, int fromX, int fromY, int toX, int toY)
+			{
+				dispatchChangeFinished(newHolder, false);
+				return true;
+			}
+		});
 
 		recyclerView.addItemDecoration(new GameAdapter.SpacesItemDecoration(8));
 
@@ -70,10 +79,9 @@ public class PlatformGamesFragment extends Fragment
 		return rootView;
 	}
 
-	@Override
+	public void refreshScreenshotAtPosition(int position)
-	public void onAttach(Activity activity)
 	{
-		super.onAttach(activity);
+		mAdapter.notifyItemChanged(position);
 	}
 
 	public void refresh()

Source/Android/app/src/main/res/layout/activity_emulation.xml

@@ -1,10 +1,11 @@
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
+             android:id="@+id/frame_content"
     >
 
     <FrameLayout
-        android:id="@+id/frame_content"
+        android:id="@+id/frame_emulation_fragment"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:visibility="invisible"/>

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

@@ -8,17 +8,10 @@
         <!--   darker variant for the status bar and contextual app bars -->
         <item name="colorPrimaryDark">@color/dolphin_blue_dark</item>
 
-        <!--enable window content transitions
+        <!--enable window content transitions-->
         <item name="android:windowContentTransitions">true</item>
-
+        <item name="android:windowAllowEnterTransitionOverlap">true</item>
-       &lt;!&ndash; specify enter and exit transitions &ndash;&gt;
+        <item name="android:windowAllowReturnTransitionOverlap">true</item>
-       <item name="android:windowEnterTransition">@android:transition/fade</item>
-       <item name="android:windowExitTransition">@android:transition/fade</item>
-
-       &lt;!&ndash; specify shared element transitions &ndash;&gt;
-       <item name="android:windowSharedElementEnterTransition">@transition/change_image_transform</item>
-       <item name="android:windowSharedElementExitTransition">@transition/change_image_transform</item>
--->
     </style>
 
     <!-- Same as above, but use default action bar, and mandate margins. -->
@@ -74,23 +67,17 @@
         <item name="colorAccent">@color/dolphin_accent_wiiware</item>
     </style>
 
-    <style name="DolphinEmulationBase" parent="Theme.AppCompat.Light.DarkActionBar">
+    <style name="DolphinEmulationBase" parent="Theme.AppCompat">
         <item name="colorPrimary">@color/dolphin_blue</item>
         <item name="colorPrimaryDark">@color/dolphin_blue_dark</item>
         <item name="android:windowTranslucentNavigation">true</item>
 
-        <!-- enable window content transitions -->
+        <item name="android:windowBackground">@android:color/black</item>
+
+        <!--enable window content transitions-->
         <item name="android:windowContentTransitions">true</item>
-
+        <item name="android:windowAllowEnterTransitionOverlap">true</item>
-        <!-- specify enter and exit transitions -->
+        <item name="android:windowAllowReturnTransitionOverlap">true</item>
-        <item name="android:windowEnterTransition">@android:transition/explode</item>
-        <item name="android:windowExitTransition">@android:transition/explode</item>
-
-        <!-- specify shared element transitions -->
-        <item name="android:windowSharedElementEnterTransition">@transition/change_image_transform
-        </item>
-        <item name="android:windowSharedElementExitTransition">@transition/change_image_transform
-        </item>
     </style>
 
     <!-- Inherit from the Base Dolphin Emulation Theme-->