Android使用Handler异步更新UI

1.创建Handler对象&＃xff1a;

Handler myHandler &＃61; new Handler(){&＃64;Overridepublic void handleMessage(Message msg) { // Handle the UI thread here.// TODO Auto-generated method stubsuper.handleMessage(msg); }};


2.创建副线程

Class TheThread implements Runnable{ public void run() { // TODO Auto-generated method stub Message msg &＃61; new Message(); myHandler.sendMessage(msg); } };

 myHandler.sendMessage(msg);不能写成 myHandler.sendMessage(null);否则就不能回调HandleMessage

3.在主线程中执行副线程&＃xff1a;

TheThread theThread &＃61; new TheThread ();
new Thread(theThread).start();