Avd2.3 - 线程中更新UI

private Handler handler=null; public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                handler=new Handler();          ...}private Runnable runnableUI = new Runnable() {  @Override  public void run() {     fieldResult.setText(textInfo);  }};new Thread(new Runnable() {     @Override     public void run() {             ...            handler.post(runnableUI);      }    }).start();