Question

/**
* intervals of loop
*/
private final long HEART_BEAT_DELAY = 1000L;
private long lastTime = 0;
/**
* whether user is chatting with other(true:isChatting; false: not chatting)
*/
private boolean mIsChatting = false;
/**
* mainThread
*/
private Thread mThread = new Thread() {
  @Override
  public void run() {
    mThread.setPriority(Thread.MAX_PRIORITY);                 
    Process.setThreadPriority(Process.THREAD_PRIORITY_URGENT_AUDIO);
    //if user is chatting and activity is not finishing, keep cycling
    while (mIsChatting && !VideoChatViewActivity.this.isFinishing()) {
      try {
        sleep(HEART_BEAT_DELAY);
        //get current time
        long thisTime = System.currentTimeMillis();
        //get interval between current time and last request time
        long duration = thisTime - lastTime;
        //every 60 seconds do network request
        if (mIsChatting && duration >= 60 * 1000) {
          //set last heartbeat time to current time
          lastTime = thisTime;
          //network request
          mModel.sendHeartBeat(mUserId, mCallId);
        }
      } catch (InterruptedException e) {
        e.printStackTrace();
      }
    }
  }
};

        /**
         * start heartbeat thread
         */
        public void startHearBeat() {
            if (!mIsChatting) {
                mIsChatting = true;
                lastTime = System.currentTimeMillis();
                mThread.start();
            } else {
                LogUtil.e("ralph", "start second time, ignore it");
            }
        }

        /**
         * stop heartbeat thread
         */
        public void endHeartBeat() {
            mIsChatting = false;
        }

我已经有了这段代码，心跳应该每60秒钟请求一次网络连接，但有时它将等待90秒钟才能进行下一次重复。为了解决这个问题，我设置了processPriority和threadPriority，但是它们仍然无法正常工作。如何按时解决该发出的请求？

Answer 1

如果将threadPriority设置为最高，则意味着您希望此线程先运行。尝试在startHearBeat（）方法中使用mThread.join()。

线程循环延迟如何解决

1 个答案: