Java实现线程的暂停和恢复的示例详解

public class MyThread extends Thread {  
    private volatile boolean isInterrupted = false;  
  
    @Override  
    public void run() {  
        while (!isInterrupted) {  
            // 线程正在执行的任务...  
        }  
    }  
  
    public void interruptThread() {  
        isInterrupted = true;  
    }  
  
    public void resetInterrupt() {  
        isInterrupted = false;  
    }  
}

package com.example.wangjun.myapplication;

import android.util.Log;

public class MyThread extends Thread {

    private final Object lock = new Object();

    private boolean pause = false;

    /**
     * 调用该方法实现线程的暂停
     */
    void pauseThread(){
        pause = true;
    }


    /*
    调用该方法实现恢复线程的运行
     */
    void resumeThread(){
        pause =false;
        synchronized (lock){
            lock.notify();
        }
    }

    /**
     * 这个方法只能在run 方法中实现，不然会阻塞主线程，导致页面无响应
     */
    void onPause() {
        synchronized (lock) {
            try {
                lock.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    @Override
    public void run() {
        super.run();
        int index = 0;
        while(true){
            while (pause){
                onPause();
            }
            try {
                System.out.println(index);
                Thread.sleep(50);
                ++index;
            }catch (Exception e){
                e.printStackTrace();
                break;
            }
        }
    }
}

  MyThread my = new MyThread();
        Thread thread = new Thread(my);
        thread.start();

        try {
            sleep(1000);
            my.pauseThread();
            sleep(5000);
            my.resumeThread();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }