private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (msg.what) {
case GET2CODE_SUCCESS:
dialog.dismiss();
set2CodeShow();
break;
case CONN_FAILED:
dialog.dismiss();
set2CodeShow();
Toast.makeText(GoodsInfo.this, "连接失败", Toast.LENGTH_SHORT)
.show();
break;
default:
break;
}
}
};mHandler.sendEmptyMessage(GET2CODE_SUCCESS);或者创建一个消息对象，Message
msg = new Message();msg.what=GET2CODE_SUCCESS;然后通过mHandler.sendMessage(msg)；来发送消息给消息队列，当然也可以发送对象数据，即用msg.obj=
Object来发送对象。Android更新UI的两种方法——handler与runOnUiThread()
原文地址：http://blog.csdn.net/u010687392/article/details/43890565
