[英]IOS iMessage extension screenshot detection
Please use Swift 4+ 请使用Swift 4+
NOTE: I am detecting the screenshot while I am within the iMessage extension, not in the standard iMessage view. 注意:当我在iMessage扩展中时,我正在检测屏幕截图,而不是在标准的iMessage视图中。
Update - I came up with a working solution that checks the photo library during the sensitive information period every .3 seconds or so to check if a new screenshot has been added. 更新 - 我想出了一个工作解决方案,每隔0.3秒左右检查敏感信息期间的照片库,以检查是否添加了新的屏幕截图。 If the user does not give permission to the photo library, it won't show them the content until they enable it.
如果用户未授予照片库的权限,则在启用照片库之前,它不会向其显示内容。 However, I am still looking for other creative solutions that don't necessarily involve such a tedious process.
但是,我仍然在寻找其他创造性的解决方案,而这些解决方案并不一定涉及如此繁琐的过程。
I have an iMessage extension and I am trying to detect screenshots. 我有一个iMessage扩展,我正在尝试检测截图。 I have tried every observer I have found online and for some reason it is not registering screenshots.
我已经尝试过我在网上找到的每一位观察者,但出于某种原因,它没有注册截图。
ViewWillAppear() viewWillAppear中()
UIScreen.main.addObserver(self, forKeyPath: "captured", options: .new, context: nil)
Observer 观察
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey: Any]?, context: UnsafeMutableRawPointer?) {
if (keyPath == "captured") {
let isCaptured = UIScreen.main.isCaptured
print(isCaptured)
screenshot()
//screenshot() sends a message alerting the message was screens hotted. However, the print statement didn't even run.
}
}
ViewWillDisappear() ViewWillDisappear()
UIScreen.main.removeObserver(self, forKeyPath: "captured", context: nil)
I have also tried the standard default Notification Center 我也尝试过标准的默认通知中心
let mainQueue = OperationQueue.main
NotificationCenter.default.addObserver(forName: UIApplication.userDidTakeScreenshotNotification, object: nil, queue: mainQueue) { notification in
// executes after screenshot
print("Screenshotted")
self.screenshot()
}
For people who claim it is not possible to detect screenshots within an iMessage extension because it is an extension and not a full app, this developer has been able to successfully do it Working Example 对于声称无法在iMessage扩展中检测屏幕截图的人,因为它是扩展而不是完整的应用程序,此开发人员已成功完成此工作示例
也许它有点过分,但您可以在受DRM保护的视频和系统中转换您的图像,防止任何屏幕截图/屏幕共享/屏幕录制受DRM保护的视频。
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