Android, Thread once

       new Thread(new Runnable() {

            public void run() {

            }     

        }).start();


////////////////////////  with delay
ref : http://stackoverflow.com/questions/3072173/how-to-call-a-method-after-a-delay-in-android

final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
  @Override
  public void run() {
    //Do something after 100ms
  }
}, 100);