Xcode報錯:

This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app‘s Info.plist must contain an NSPhotoLibraryUsageDescription key with a string value explaining to the user how the app uses this data.

解決方案
1.在項目中找到info.plist文件，右鍵點擊以 Source Code

    <key>NSPhotoLibraryUsageDescription</key>
    <string>此 App 需要您的同意才能讀取媒體資料庫</string>

目測所有需要的權限描述都會在 iOS 10 beta裏面crash，不用怕，控制臺會有輸出的，自行添加就 OK，我另外附送幾個 key/value 給你們

    <key>NSCameraUsageDescription</key>    
    <string>cameraDesciption</string>

    <key>NSContactsUsageDescription</key>    
    <string>contactsDesciption</string>

    <key>NSMicrophoneUsageDescription</key>    
    <string>microphoneDesciption</string>
 

嗯，然後 clean 一下，重新運行。

iOS10 UIImageWriteToSavedPhotosAlbum程序奔潰crash解決辦法