有什么方法可以检查iOS应用是否在后台? [英] Is there any way to check if iOS app is in background?

问题描述

我要检查应用程序是否在后台运行.

I want to check if the app is running in the background.

在:

locationManagerDidUpdateLocation {
    if(app is runing in background){
        do this
    }
}

推荐答案

应用程序委托获取指示状态转换的回调.您可以基于此进行跟踪.

App delegate gets callbacks indicating state transitions. You can track it based on that.

applicationState 属性会返回当前状态.

Also the applicationState property in UIApplication returns the current state.

[[UIApplication sharedApplication] applicationState]

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