问题描述
该CountDownTimer默认构造函数的值millisInFuture和countDownInterval。
如果用户停止计时器，改变了设置不同的长度millisInFuture，我将如何去改变millisInFuture值，而无需创建一个新的CountDownTimer对象？
The CountDownTimer default Constructor takes the values millisInFuture and countDownInterval.If the user stops the timer, changes his settings to a different millisInFuture length, how would I go about changing the millisInFuture value without creating a new CountDownTimer object?
我试过使得覆盖CountDownTimer类getMillisInFuture方法都无济于事。
我将不得不重写OnStart方法，还是什么？
I've tried making a getMillisInFuture method in the override CountDownTimer class to no avail.Would I have to override the onStart method, or what?
推荐答案
这个类不会让你本身做太多。
This class will not let you do much by itself.
您可以创建一个包含 CountDownTimer定时器字段和方法更新（时间，打勾），一个类隐藏实现。你仍然需要调用 timer.cancel（），并创建一个新的 CountDownTimer 使用新值。如果不是这样，或者使用从头开始创建您的倒数计时器一个处理程序和 postDelayed（...）
You can create a class that contains a CountDownTimer timer field and a method update(time, tick) that hides the implementation. You would still need to call timer.cancel() and create a new CountDownTimer with the new values. Either that, or create your countdown timer from scratch using a Handler and postDelayed(...)
在拿我的回答一下第二个方法的一个例子here
Take a look at an example of the second approach in my answer here
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