WechatIMG95.jpeg
1、进入后台模糊效果：
在AppDelegate.swift中，
lazy var visualEffectView: UIVisualEffectView = {
let blur = UIBlurEffect.init(style: UIBlurEffect.Style.light)
let view = UIVisualEffectView.init(effect: blur)
view.frame = UIScreen.main.bounds
return view
}()
func applicationWillResignActive(_ application: UIApplication) {
window?.addSubview(self.visualEffectView)
}
func applicationDidBecomeActive(_ application: UIApplication) {
self.visualEffectView.removeFromSuperview()
}
2、截屏、录屏监控
在需要监控的ViewController里：
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
//检查是否“屏幕录制中”
let screen = UIScreen.main
if screen.isCaptured {
self.screenshotAlert()
}
}
override func viewDidLoad() {
super.viewDidLoad()
//添加“截屏”、“录屏”通知
NotificationCenter.default.addObserver(self, selector: #selector(screenshotAlert), name: UIApplication.userDidTakeScreenshotNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(screenshotAlert), name: UIScreen.capturedDidChangeNotification, object: nil)
}
@objc func screenshotAlert() {
let alert = UIAlertController.init(title: "提示", message: "[安全提醒]不要截图，录屏或分享给他人以保障账户安全。", preferredStyle: .alert)
let cancleAction = UIAlertAction.init(title: "好的", style: .cancel, handler: nil)
alert.addAction(cancleAction)
self.present(alert, animated: true, completion: nil)
}
