Question

我正在编写需要使用线程的Android应用程序在这个应用程序中，我有3个线程，从应用程序的开头开始这是我的代码：

Thread t1,t2,t3;
protected void onCreate(Bundle savedInstanceState)
{

t1=new Thread(new Runnable()
{
    public void run()
    {
        //do some long stuffs
        t3.notify();
    }
});
t2=new Thread(new Runnable()
{
    public void run()
    {
        //do some long stuffs
        t3.notify();
    }
});
t3=new Thread(new Runnable()
{
    public void run()
    {
        this.wait();
        //run after t1 & t2 is done.
    }
});
t1.start();
t2.start();
t3.start();
}

现在我想睡眠 t3 线程并在t1和t2完成工作时运行它。

Answer 1

将t1，t2引用传递给t3并在t3.run（）内部等待其他线程：

t1.join();
t2.join();

像这样：

    final Thread t1, t2, t3;

    t1 = new Thread(new Runnable() {
        public void run() {
            //do some long stuffs
        }
    });

    t2 = new Thread(new Runnable() {
        public void run() {
            //do some long stuffs
        }
    });

    t3 = new Thread(new Runnable() {
        public void run() {
            try {
                t1.join();
                t2.join();
                // t1 & t2 have finished
                // continue with t3 stuff
            } catch (InterruptedException e) {
                //handle it
            }
        }
    });

    t1.start();
    t2.start();
    t3.start();

如何在Android中完成两个线程时运行第三个线程

1 个答案: