How can I stop Handler in postDelayed mode?

Question

How can I stop the counter of the Handler when it shouldn't count anymore? Maybe you can tell me how to do with the code below.

 public void handler() {
    nHandler.postDelayed(new Runnable() {
        @Override
        public void run() {

                viewFlipper.setDisplayedChild(8);
        }
    }, 20000);
}

Answer 1

Use removeCallbacks

nHandler.removeCallbacks(nhandlerTask);

http://developer.android.com/reference/android/os/Handler.html#removeCallbacks(java.lang.Runnable)

public final void removeCallbacks (Runnable r)

Added in API level 1
Remove any pending posts of Runnable r that are in the message queue.