如何减少在Android手机应用程序的CPU使用率？ [英] How to reduce App's CPU usage in Android phone?

问题描述

我公司开发的自动调用应用application.The。阅读文本文件，包括电话号码，并拨打了数第二和结束通话，并重复。

I developed auto-call application.The App. read text file including phone number list and call for a few second and end call and repeat.

我的问题是应用程序。不要送10〜16小时后调用。我不知道原因究竟，
但我想，这个问题是CPU usgae。我的应用程序的CPU占用率几乎是50％！
如何降低CPU使用率？

My problem is that App. do not send call after 10~16hours. I don't know the reason exactly, But I guess that the problem is CPU usgae. My App's CPU usage is almost 50%! How to reduce CPU usage?

下面是源$ C ​​$ C的一部分。
我很抱歉，我的英语不好。

Here is part of source code. I'm sorry that my english is bad.

   if(r_count.compareTo("0")!=0) {
        while(index < repeat_count) {
            count = 1;
            time_count = 2;

            while(count < map.length) {
               performDial();   //start call
              reject();                   //end call
              finishActivity(1);
              TimeDelay("60");            // wait for 60sec
              count = count + 2;
              time_count = time_count + 2;
              onBackPressed();            // press back button for calling next number
              showCallLog();
              finishActivity(0);
           }
          index++;
    }

这是纯滞后（）来源：

   public void TimeDelay(String delayTime) {

    saveTime = System.currentTimeMillis()/1000;
    currentTime = 0;
    dTime = Integer.parseInt(delayTime);

    while(currentTime - saveTime < dTime) {
        currentTime =  System.currentTimeMillis()/1000;

    }

   }    

纯滞后（）重复while循环几次。

TimeDelay() repeat while loop for a few times.

推荐答案

它使用CPU的50％，其原因是，Android的显然不会让它使用CPU的100％，其中像在一个循环的纯滞后（）通常会。 （否则你有两个CPU，它使用一个CPU的100％是事实。）你在做什么叫做的忙等待，它应该是显而易见的，为什么不断地检查条件将使用大量的CPU。所以，不要做。使用视频下载（）来代替。然后，您的应用程序将在等待期间不使用CPU的。

The reason it's using 50% of your CPU is that Android apparently won't let it use 100% of the CPU, which a loop like the one in your TimeDelay() ordinarily would. (Or else you have two CPUs and it is in fact using 100% of one CPU.) What you're doing is called a busy wait and it should be obvious why continually checking a condition will use lots of CPU. So don't do that. Use Thread.sleep() instead. Your app will then use no CPU at all during the wait.

此外，偏偏，为什么你传递一个字符串，然后 parseInt函数 ING它，而不是仅仅通过一个整数摆在首位？ ： - ）

Also, for God's sake, why are you passing a string and then parseInting it, rather than just passing an Integer in the first place? :-)

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