我如何prevent从后台运行我CountDownTimer? [英] How do I prevent my CountDownTimer from running in background?
问题描述
我想提出一个Android应用程序,有一个时间限制来分的,你可以得到的金额。但是,如果你关闭该应用程序,计时器不断前进。如何暂停了 CountDownTimer
当应用程序暂停?
I am making an Android app that has a time limit to the amount of points you can get. But if you close the app, the timer keeps going. How do I pause the CountDownTimer
when the app pauses?
推荐答案
您可以在的onPause取消()
的东西,如
@Override
public void onPause()
{
super.onPause();
timer.cancel(); // timer is a reference to my inner CountDownTimer class
timer = null;
}
和使用 millisUntilFinished
变量保存在共享preference
或一些其他持久性变量。然后使用该变量再次启动 onResume计时器()
And use the millisUntilFinished
variable to save in a SharedPreference
or some other persistent variable. Then use that variable again to start the timer in onResume()
<一个href="http://stackoverflow.com/questions/27130057/passing-countdown-timer-beetwen-activities-in-android/27130218#27130218">This答案可能是有帮助的,如果你需要传递的价值,另一个活动
。
This answer may be helpful if you need to pass the value to another Activity
.
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