how to run a background thread in android

1Thread thread = new Thread() {
2  @Override
3  public void run() {
4      try { Thread.sleep(2000); }
5      catch (InterruptedException e) {}
6
7      runOnUiThread(new Runnable() {
8          @Override
9          public void run() {
10              textView.setText("OK");
11          }
12      });
13  }
14};
15thread.start();
16