1、onCreate()中写好handler的接受机制，准备接受并处理消息
2、thread中利用handler.post(Runnable r):
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView = (TextView) findViewById(R.id.text);
handler = new Handler();
// new myHandlerThread(handler).start();
new myHandlerThread2(handler).start();
}
class myHandlerThread2 extends Thread {
private Handler handler;
public myHandlerThread2(Handler handler) {
// TODO Auto-generated constructor stub
this.handler = handler;
}
@Override
public void run() {
// TODO Auto-generated method stub
super.run();
handler.post(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
textView.setText("myHandlerThread2");
}
});
}
}
3、将一个线程打造成一个可以直接操作UI的线程（未尝试，可能不成功）
class LooperThread extends Thread {
public Handler mHandler;
public void run() {
Looper.prepare();
mHandler = new Handler() {
public void handleMessage(Message msg) {
// process incoming messages here
}
};
Looper.loop();
}
}