Update the UI outside the main thread

Question

I am totaly new to android and just want to know if it is any working and possible way to update the UI outside the main thread. Just from my code I have listed below I know

Answer 1

You can't update UI directly from non-UI thread, but You could communicate with UI thread using Handler object or AsyncTask object. The most convinient way to use AsyncTask:

1. .doInBackground() method of AsyncTask runs in non-ui thread
2. .onProgressUpdate() runs in UI thread so could change views
3. You could use publishProgress() method inside doInBackground() to pass data to .onProgressUpdate.

Sorry if some mistakes in method names. Read http://developer.android.com/guide/components/processes-and-threads.html for details.