Use requestWindowFeature instead of support version

supportRequestWindowFeature throws a NullpointerException in some cases

closes #479

src/de/danoeh/antennapod/activity/VideoplayerActivity.java

@@ -6,12 +6,12 @@ import android.graphics.drawable.ColorDrawable;
 import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v4.view.WindowCompat;
 import android.util.Log;
 import android.util.Pair;
 import android.view.MotionEvent;
 import android.view.SurfaceHolder;
 import android.view.View;
+import android.view.Window;
 import android.view.WindowManager;
 import android.view.animation.Animation;
 import android.view.animation.AnimationUtils;
@@ -50,10 +50,11 @@ public class VideoplayerActivity extends MediaplayerActivity {
         setTheme(R.style.Theme_AntennaPod_Dark);
     }
 
+    @SuppressLint("AppCompatMethod")
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         if (Build.VERSION.SDK_INT >= 11) {
-            supportRequestWindowFeature(WindowCompat.FEATURE_ACTION_BAR_OVERLAY);
+            requestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
         }
         getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
         super.onCreate(savedInstanceState);

src/instrumentationTest/de/test/antennapod/ui/VideoplayerActivityTest.java

@@ -0,0 +1,38 @@
+package instrumentationTest.de.test.antennapod.ui;
+
+import android.test.ActivityInstrumentationTestCase2;
+
+import com.robotium.solo.Solo;
+
+import de.danoeh.antennapod.activity.VideoplayerActivity;
+
+/**
+ * Test class for VideoplayerActivity
+ */
+public class VideoplayerActivityTest extends ActivityInstrumentationTestCase2<VideoplayerActivity> {
+
+    private Solo solo;
+
+    public VideoplayerActivityTest() {
+        super(VideoplayerActivity.class);
+    }
+
+    @Override
+    public void setUp() throws Exception {
+        super.setUp();
+        solo = new Solo(getInstrumentation(), getActivity());
+    }
+
+    @Override
+    public void tearDown() throws Exception {
+        solo.finishOpenedActivities();
+        super.tearDown();
+    }
+
+    /**
+     * Test if activity can be started.
+     */
+    public void testStartActivity() throws Exception {
+        solo.waitForActivity(VideoplayerActivity.class);
+    }
+}