Is this how to schedule a java method to run 1 second later?

Question

In my method, I want to call another method that will run 1 second later. This is what I have.

final Timer timer = new Timer();

timer.schedule(new TimerTask() {
    public void run() {
          MyMethod();
          Log.w("General", "This has been called one second later");
        timer.cancel();
    }
}, 1000);

Is this how it's supposed to be done? Are there other ways to do it since I'm on Android? Can it be repeated without any problems?

Answer 1

Instead of a Timer, I'd recommend using a ScheduledExecutorService

final ScheduledExecutorService exec = Executors.newScheduledThreadPool(1);

exec.schedule(new Runnable(){
    @Override
    public void run(){
        MyMethod();
    }
}, 1, TimeUnit.SECONDS);

Answer 2

There are several alternatives. But here is Android specific one.

If you thread is using Looper (and Normally all Activity's, BroadcastRecevier's and Service's methods onCreate, onReceive, onDestroy, etc. are called from such a thread), then you can use Handler. Here is an example:

Handler handler = new Handler();
handler.postDelayed(new Runnable()
{
     @Override
     public void run()
     {
         myMethod();
     }
}, 1000);

Note that you do not have to cancel anything here. This will be run only once on the same thread your Handler was created.