The advanced handler to set the runnable task and set time postpond

[Android] Handler (Advanced)

// the advanced handler will allow to postpone for a given time.
// instead of using the java.lang.Thread class, the new class is java.lang.Runnable class

android.os.Handler.Handler
android.os.Message
java.lang.Runnable


Handler msgHandler = new Handler() {
	@Override
	public void handleMessage(Message msg) {
		// handler logic
		// like: msg.what == ??
	}
};

Runnable taskRun = new Runnable() {
	@Override
	public void run() {
		// business logic
		// like:
		int what = 0;
		msgHandler.sendMessage(msgHandler.obtainMessage(what));
	}
};


// enable the handler with the runnable task
msgHandler.removeCallbacks(taskRun);
msgHandler.postDelayed(taskRun, 3000); // 3000 indicated 3000 milliseconds, in other word, 3 seconds