如何暂停线程一段时间，然后在用户交互时显示UI，继续线程执行

Question

I have started the Thread, In that thread i am trying to connect to the server, After receiving the response, I have to update the UI with event listeners(implemented through Interface). Here After receiving the response i need to show the popup Dialog once user clicks OK, need to continue the thread and complete the other process.

 class ConnectionThread extends Thread {
        ConnectionThread() {
            this.setName("ConnectionThread");
        }

        @Override
        public void run() {
        // Need to pause the thread for sometime, Need to do the functionality here.  
     ((Activity)mContext).runOnUiThread(new Runnable() {
                public void run() {
            // custom dialog
               showAlertDialog();  
               // start the thread functionality again from that position.  
 }
});

}

I have tried with wait() concept and also join, which are not helped as expected. Any help appreciated.

Answer 1

you can use countdownlatch

class ConnectionThread extends Thread {
        CountDownLatch countDownLatch = new CountDownLatch(1);
        public ConnectionThread() {
            this.setName("ConnectionThread");
        }

        @Override
        public void run() {
            try {
                sleep(2000);
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        //update ui then
                        countDownLatch.countDown();
                    }
                });
                countDownLatch.await();
                //start process again
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }