Handler handler = new Handler() {
  public void handleMessage(Message msg) {
    // 要做的事情
    super.handleMessage(msg);
  }
};

public class MyThread implements Runnable {
 @Override
 public void run() {
 // TODO Auto-generated method stub
 while (true) {
  try {
  Thread.sleep(10000);// 线程暂停10秒，单位毫秒
  Message message = new Message();
  message.what = 1;
  handler.sendMessage(message);// 发送消息
  } catch (InterruptedException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
  }
 }
 }
}

Handler handler=new Handler();
Runnable runnable=new Runnable() {
  @Override
  public void run() {
    // TODO Auto-generated method stub
    //要做的事情
    handler.postDelayed(this, 2000);
  }
};

private final Timer timer = new Timer(); 
private TimerTask task; 
Handler handler = new Handler() { 
  @Override 
  public void handleMessage(Message msg) { 
    // TODO Auto-generated method stub 
    // 要做的事情 
    super.handleMessage(msg); 
  }
};

task = new TimerTask() { 
  @Override 
  public void run() { 
    // TODO Auto-generated method stub 
    Message message = new Message(); 
    message.what = 1; 
    handler.sendMessage(message); 
  } 
};