Refactored ListView mode changes into seperate methods.

src/com/github/nutomic/controldlna/gui/RouteFragment.java

@@ -179,14 +179,9 @@ public class RouteFragment extends MediaRouteDiscoveryFragment implements
         
         if (savedInstanceState != null) {
         	mListView.onRestoreInstanceState(savedInstanceState.getParcelable("list_state"));
-        	if (savedInstanceState.getBoolean("route_selected")) {
+        	if (savedInstanceState.getBoolean("route_selected"))
-        		mSelectedRoute = MediaRouter.getInstance(getActivity())
+        		playlistMode(MediaRouter.getInstance(getActivity())
-        				.getSelectedRoute();
+        				.getSelectedRoute());
-    			mListView.setAdapter(mPlaylistAdapter);
-    			mControls.setVisibility(View.VISIBLE);
-        		TextView emptyView = (TextView) mListView.getEmptyView();
-        		emptyView.setText(R.string.playlist_empty);
-        	}
         }
     }
     
@@ -274,22 +269,40 @@ public class RouteFragment extends MediaRouteDiscoveryFragment implements
 	 */
 	@Override
 	public void onItemClick(AdapterView<?> a, View v, final int position, long id) {
-		if (mListView.getAdapter() == mRouteAdapter) {
+		if (mListView.getAdapter() == mRouteAdapter)
-			mSelectedRoute = mRouteAdapter.getItem(position);
+			playlistMode(mRouteAdapter.getItem(position));
-			mMediaRouterPlayService.getService().selectRoute(mSelectedRoute);
-			mListView.setAdapter(mPlaylistAdapter);
-			mControls.setVisibility(View.VISIBLE);
-			if (mStartPlayingOnSelect != -1) {
-				mMediaRouterPlayService.getService().play(mStartPlayingOnSelect);
-				mStartPlayingOnSelect = -1;
-			}
-    		TextView emptyView = (TextView) mListView.getEmptyView();
-    		emptyView.setText(R.string.playlist_empty);
-		}
 		else
 			mMediaRouterPlayService.getService().play(position);
 	}
 	
+	/**
+	 * Displays UPNP devices in the ListView.
+	 */
+	private void deviceListMode() {
+		mControls.setVisibility(View.GONE);
+		mListView.setAdapter(mRouteAdapter);
+		disableTrackHighlight();
+		mSelectedRoute = null;
+		TextView emptyView = (TextView) mListView.getEmptyView();
+		emptyView.setText(R.string.device_list_empty);
+	}
+	
+	/**
+	 * Displays playlist for route in the ListView.
+	 */
+	private void playlistMode(RouteInfo route) {
+		mSelectedRoute = route;
+		mMediaRouterPlayService.getService().selectRoute(mSelectedRoute);
+		mListView.setAdapter(mPlaylistAdapter);
+		mControls.setVisibility(View.VISIBLE);
+		if (mStartPlayingOnSelect != -1) {
+			mMediaRouterPlayService.getService().play(mStartPlayingOnSelect);
+			mStartPlayingOnSelect = -1;
+		}
+		TextView emptyView = (TextView) mListView.getEmptyView();
+		emptyView.setText(R.string.playlist_empty);		
+	}
+	
 	/**
 	 * Sets colored background on the item that is currently playing.
 	 */
@@ -330,25 +343,14 @@ public class RouteFragment extends MediaRouteDiscoveryFragment implements
 									public void onClick(DialogInterface dialog, 
 											int which) {
 										mMediaRouterPlayService.getService().stop();
-										mControls.setVisibility(View.GONE);
+							    		deviceListMode();
-										mListView.setAdapter(mRouteAdapter);
-										disableTrackHighlight();
-										mSelectedRoute = null;
-							    		TextView emptyView = (TextView) mListView.getEmptyView();
-							    		emptyView.setText(R.string.device_list_empty);
 									}
 								})
 						.setNegativeButton(android.R.string.no, null)
 						.show();
 			}
-			else {
+			else
-				mControls.setVisibility(View.GONE);
+				deviceListMode();
-				mListView.setAdapter(mRouteAdapter);
-				disableTrackHighlight();
-				mSelectedRoute = null;
-	    		TextView emptyView = (TextView) mListView.getEmptyView();
-	    		emptyView.setText(R.string.device_list_empty);
-			}
 	        return true;
 		}
 		return false;

src/com/github/nutomic/controldlna/gui/ServerFragment.java

@@ -215,13 +215,8 @@ public class ServerFragment extends ListFragment implements OnBackPressedListene
      */
     @Override
     public void onListItemClick(ListView l, View v, int position, long id) {
-    	if (getListAdapter() == mServerAdapter) {
+    	if (getListAdapter() == mServerAdapter)
-    		setListAdapter(mFileAdapter);
+    		browsingMode(mServerAdapter.getItem(position));
-    		mCurrentServer = mServerAdapter.getItem(position);
-    		getFiles(ROOT_DIRECTORY);
-    		TextView emptyView = (TextView) getListView().getEmptyView();
-    		emptyView.setText(R.string.folder_list_etmpy);
-    	}
     	else if (getListAdapter() == mFileAdapter) {
     		if (mFileAdapter.getItem(position) instanceof Container)
     			getFiles(((Container) mFileAdapter.getItem(position)).getId());
@@ -237,6 +232,27 @@ public class ServerFragment extends ListFragment implements OnBackPressedListene
     	}
     }
 
+    /**
+     * Displays available servers in the ListView.
+     */
+    private void serverMode() {
+		setListAdapter(mServerAdapter);
+    	getListView().onRestoreInstanceState(mListState.peek());
+		mCurrentServer = null;
+		TextView emptyView = (TextView) getListView().getEmptyView();
+		emptyView.setText(R.string.device_list_empty);    	
+    }
+    
+    /**
+     * Displays files for server (starting from root).
+     */
+    private void browsingMode(Device<?, ?, ?> server) {
+		setListAdapter(mFileAdapter);
+		mCurrentServer = server;
+		getFiles(ROOT_DIRECTORY);
+		TextView emptyView = (TextView) getListView().getEmptyView();
+		emptyView.setText(R.string.folder_list_etmpy);    	
+    }
     /**
      * Opens a new directory and displays it.
      */
@@ -307,13 +323,8 @@ public class ServerFragment extends ListFragment implements OnBackPressedListene
     	
 		mCurrentPath.pop();
 		mListState.pop();
-		if (mCurrentPath.empty()) {
+		if (mCurrentPath.empty())
-    		setListAdapter(mServerAdapter);
+			serverMode();
-	    	getListView().onRestoreInstanceState(mListState.peek());
-    		mCurrentServer = null;
-    		TextView emptyView = (TextView) getListView().getEmptyView();
-    		emptyView.setText(R.string.device_list_empty);
-		}
 		else
 			getFiles(true);
 		return true;		

src/com/github/nutomic/controldlna/mediarouter/MediaRouterPlayService.java

@@ -292,14 +292,25 @@ public class MediaRouterPlayService extends Service {
 		mPlaylist = playlist;
 	}
 	
+	/**
+	 * Plays the track after current in the playlist.
+	 */
 	public void playNext() {
 		play(mCurrentTrack + 1);
 	}
 
+	
+	/**
+	 * Plays the track before current in the playlist.
+	 */
 	public void playPrevious() {
 		play(mCurrentTrack - 1);
 	}
 	
+	/**
+	 * Returns index of the track that is currently played (zero-based).
+	 * @return
+	 */
 	public int getCurrentTrack() {
 		return mCurrentTrack;
 	}