Android: Save screenshot at end of an emulation session.

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

@@ -274,6 +274,12 @@ public final class NativeLibrary
 		});
 	}
 
+	public static void endEmulationActivity()
+	{
+		Log.v("DolphinEmu", "Ending EmulationActivity.");
+		mEmulationActivity.finish();
+	}
+
 	public static void setEmulationActivity(EmulationActivity emulationActivity)
 	{
 		Log.v("DolphinEmu", "Registering EmulationActivity.");

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

@@ -150,7 +150,11 @@ public final class EmulationActivity extends AppCompatActivity
 		else
 		{
 			// Let the system handle it; i.e. quit the activity TODO or show "are you sure?" dialog.
-			super.onBackPressed();
+			EmulationFragment fragment = (EmulationFragment) getFragmentManager()
+					.findFragmentByTag(EmulationFragment.FRAGMENT_TAG);
+			fragment.notifyEmulationStopped();
+
+			NativeLibrary.StopEmulation();
 		}
 	}
 

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

@@ -127,6 +127,13 @@ public final class MainActivity extends AppCompatActivity implements LoaderManag
 		}
 	}
 
+	@Override
+	protected void onResume()
+	{
+		super.onResume();
+		mAdapter.notifyDataSetChanged();
+	}
+
 	@Override
 	public boolean onCreateOptionsMenu(Menu menu)
 	{

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

@@ -119,7 +119,7 @@ public final class EmulationFragment extends Fragment implements SurfaceHolder.C
 	public void onDestroyView()
 	{
 		super.onDestroyView();
-		if (getActivity().isFinishing())
+		if (getActivity().isFinishing() && mEmulationStarted)
 		{
 			NativeLibrary.StopEmulation();
 		}
@@ -195,6 +195,16 @@ public final class EmulationFragment extends Fragment implements SurfaceHolder.C
 		mEmulationRunning = false;
 	}
 
+	/**
+	 * Called by containing activity to tell the Fragment emulation is already stopping,
+	 * so it doesn't try to stop emulation on its way to the garbage collector.
+	 */
+	public void notifyEmulationStopped()
+	{
+		mEmulationStarted = false;
+		mEmulationRunning = false;
+	}
+
 	private Runnable mEmulationRunner = new Runnable()
 	{
 		@Override

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/model/Game.java

@@ -113,21 +113,7 @@ public final class Game
 	{
 		ContentValues values = new ContentValues();
 
-		// TODO Come up with a way of finding the most recent screenshot that doesn't involve counting files
-		String screenshotFolderPath = PATH_SCREENSHOT_FOLDER + gameId + "/";
-
-		// Count how many screenshots are available, so we can use the most recent one.
-		File screenshotFolder = new File(screenshotFolderPath.substring(screenshotFolderPath.indexOf('s') - 1));
-		int screenCount = 0;
-
-		if (screenshotFolder.isDirectory())
-		{
-			screenCount = screenshotFolder.list().length;
-		}
-
-		String screenPath = screenshotFolderPath
-				+ gameId + "-"
-				+ screenCount + ".png";
+		String screenPath = PATH_SCREENSHOT_FOLDER + gameId + "/thumb.png";
 
 		values.put(GameDatabase.KEY_GAME_PLATFORM, platform);
 		values.put(GameDatabase.KEY_GAME_TITLE, title);