How can I run code on a background thread on Android?

IF you need to:

1. execute code on a background Thread

2. execute code that DOES NOT touch/update the UI

3. execute (short) code which will take at most a few seconds to complete

THEN use the following clean and efficient pattern which uses AsyncTask:

AsyncTask.execute(new Runnable() {
   @Override
   public void run() {
      //TODO your background code
   }
});