[Android] Open the navigation drawer by clicking on the button. Woops…

…, didn't realize that gmail did this as well.

Source/Android/src/org/dolphinemu/dolphinemu/GameListActivity.java

@@ -11,6 +11,7 @@
 import android.support.v4.app.ActionBarDrawerToggle;
 import android.support.v4.widget.DrawerLayout;
 import android.view.Menu;
+import android.view.MenuItem;
 import android.view.View;
 import android.widget.AdapterView;
 import android.widget.ListView;
@@ -74,6 +75,13 @@ protected void onCreate(Bundle savedInstanceState) {
 				R.string.drawer_open,  /* "open drawer" description for accessibility */
 				R.string.drawer_close  /* "close drawer" description for accessibility */
 		) {
+			public void onDrawerClosed(View view) {
+				invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
+			}
+
+			public void onDrawerOpened(View drawerView) {
+				invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
+			}
 		};
 		mDrawerLayout.setDrawerListener(mDrawerToggle);
 
@@ -215,6 +223,16 @@ public void onConfigurationChanged(Configuration newConfig) {
 	public boolean onPrepareOptionsMenu(Menu menu) {
 		return super.onPrepareOptionsMenu(menu);
 	}
+
+	@Override
+	public boolean onOptionsItemSelected(MenuItem item) {
+		// The action bar home/up action should open or close the drawer.
+		// ActionBarDrawerToggle will take care of this.
+		if (mDrawerToggle.onOptionsItemSelected(item)) {
+			return true;
+		}
+		return super.onOptionsItemSelected(item);
+	}
 	public void onBackPressed()
 	{