Android立刻終止一個線程

/**
 * Created by JuTao on 2017/2/4.
 * 如何中止一個線程
 */
public class ThreadDone {
  public static void main(String[] args) throws InterruptedException {
    MyRunnable myRunnable=new MyRunnable();
    Thread thread = new Thread(myRunnable);
    thread.start();
    Thread.sleep(1000);
    //僅僅利用flag並不能使線程立刻中止，當run方法中有耗時操作時會等待執行完成才結束
    myRunnable.flag=false;
    thread.interrupt();
  }

  private static class MyRunnable implements Runnable {

    //立刻同步到子線程中
    private volatile boolean flag = true;

    @Override public void run() {
      while (flag&&!Thread.interrupted()) {
        System.out.println("running");
        try {
          Thread.sleep(8000);
        } catch (InterruptedException e) {
          //e.printStackTrace();
          //thread.interrupt()執行后會立刻進入catch
          return;
        }
      }
    }
  }
}