Merge pull request #826 from nextcloud/fix_bug_firstlogin

Fix bug firstlogin

src/main/java/com/owncloud/android/ui/activity/FileDisplayActivity.java

@@ -315,7 +315,7 @@ public class FileDisplayActivity extends HookActivity
                 if (grantResults.length > 0
                         && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                     // permission was granted
-                    startSynchronization();
+                    refreshList(true);
                     // toggle on is save since this is the only scenario this code gets accessed
                 } else {
                     // permission denied --> do nothing

src/main/java/com/owncloud/android/ui/preview/PreviewMediaFragment.java

@@ -681,8 +681,6 @@ public class PreviewMediaFragment extends FileFragment implements
         }
 
         private void prepareMediaController() {
-            mMultiView.setVisibility(View.GONE);
-            mPreviewContainer.setVisibility(View.VISIBLE);
             mMediaServiceBinder.registerMediaController(mMediaController);
             if (mMediaController != null) {
                 mMediaController.setMediaPlayer(mMediaServiceBinder);