应用程序确实进入了后台功能 [英] Application did enter background function

问题描述

嘿，我的firstViewController中有一个间隔时间很短的计时器，当应用程序进入后台时，我想终止该计时器，但是我应该如何从该函数所在的Applications AppDelegate文件访问它.我知道这是一个非常愚蠢的问题，但我将不胜感激.谢谢！

Hey I got a pretty low interval timer in my firstViewController which I would like to terminate when the app enters background, but how am I supposed to access it from my Applications AppDelegate file where the function is located. I know this is extremely dumb question, but I would appreciate help. Thanks!

推荐答案

在您的firstViewController中，您将收听

In your firstViewController, you would listen for UIApplicationDidEnterBackgroundNotification.

在firstViewController初始化方法中:

In the firstViewController init method:

- (void)addObserver:(id)notificationObserver selector:(SEL)notificationSelector name:(NSString *)notificationName object:(id)notificationSender

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