Question

I need do something (a search in a relatively big ArrayList, then display it in a custom and kinda complex adapter) ONE second after a keypress event, but if another keypress event occur, then I should reset the countdown and wait another second.

Can I do this in Java?

Answer 1

You could use handlers for that:

private Handler handler = new Handler();     

private Runnable actionRunnable = new Runnable() {
    public void run(){
        // your action here
    }
}; 

private void handleKeypress() {
    handler.removeCallbacks(actionRunnable);
    handler.postDelayed(actionRunnable, 1000); 
}