如何查看iOS11屏幕录像是打开还是关闭? [英] How to check iOS11 Screen Recording is On or Off?

问题描述

为了检测iOS11屏幕录制功能的开或关，我使用了isCaptured和UIScreenCapturedDidChange通知.

For detecting iOS11 screen recording feature On or Off I used isCaptured and UIScreenCapturedDidChange Notification.

第一次启动应用程序并在iOS11上内置屏幕录制功能时，它会以值True通知选择器方法，但是当我终止(终止)正在运行的应用程序并再次启动应用程序时，请再次执行相同的步骤，然后选择器方法没有被调用.

When first time I Launch the App and On iOS11 built-in screen recording feature then it notifies the selector method with value True, but when I kill (terminate) my running App and Launch app again do the same procedure again then my selector method is not getting called.

这是我的代码:

我在ViewWillAppear()方法中添加了一个观察者:

I add an Observer in ViewWillAppear() method:

NotificationCenter.default.addObserver(self, selector: #selector(handleNotification), name: NSNotification.Name.UIScreenCapturedDidChange, object: nil)

选择器方法如下:

@objc
func handleNotification(notification:Notification){

    let isCaptured = UIScreen.main.isCaptured

    print("isCaptured value = \(isCaptured)")
}

在这种情况下，我需要终止该应用程序，清除缓存，然后再次启动该应用程序以获取屏幕录制事件.

In this case, I need to kill the app, clear the cache and again launch the app for getting screen recording event.

请建议我在这里可以执行哪些操作来检测录制事件，以保护我的内容免于录制.

Please suggest what I can do here to detect recording event to protect my content from recording.

推荐答案

Swift 4

添加观察者

UIScreen.main.addObserver(self, forKeyPath: "captured", options: .new, context: nil)

接收更改

override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey: Any]?, context: UnsafeMutableRawPointer?) {
    if (keyPath == "captured") {
        let isCaptured = UIScreen.main.isCaptured

        print(isCaptured)
    }
}

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