检测我的iOS应用中的任何APP上截取的屏幕截图
[英]Detect screenshots taken ON ANY APP within my iOS app
问题描述
Is it possible to detect when the user takes a screenshot in any app while my app is in the background ? 
当我的应用程序在后台时，是否可以检测用户何时在任何应用程序中截屏？ And how would I do that ? 那我该怎么办？
If not, can I background check regularly for screenshots (not pictures from the camera) in the photo library ? 如果没有，我可以定期检查照片库中的截图（不是相机中的照片）吗？ Like every minute or hour ? 像每分钟或每小时？
1 个解决方案
解决方案1
3 已采纳 2017-02-17 18:46:21
One way to get your app to detect Screenshots is: 让您的应用检测屏幕截图的一种方法是：
Register with the Photo Library's PHPhotoLibraryChangeObserver
注册照片库的PHPhotoLibraryChangeObserver When your app receives a notification that a photo has been added, check its PHAssetMediaSubtype
当您的应用收到添加了照片的通知时，请检查其PHAssetMediaSubtype If the Subtype is PHAssetMediaSubtypePhotoScreenshot, you know a new Screenshot has been taken.
如果子类型是PHAssetMediaSubtypePhotoScreenshot，您知道已经拍摄了新的屏幕截图。
The PHPhotoLibraryChangeObserver protocol notifies you of changes that occur in the Photos library, regardless of whether those changes are made by your app, by a user in the Photos app, or by another app that uses the Photos framework.
https://developer.apple.com/reference/photos/phphotolibrarychangeobserver https://developer.apple.com/reference/photos/phphotolibrarychangeobserver
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