ios UIImageWriteToSavedPhotosAlbum报错 NSPhotoLibraryAddUsageDescription

最近学习IOS相关知识. 视频课程[UIImage](https://www.imooc.com/video/12718)  

相关知识点: 存储一张本地图片到系统相册中.  

API: UIImageWriteToSavedPhotosAlbum

按照视频教程Dome中书写代码, 启动报错如下:

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

   

 

按照如上所述. 需要向info.plist中添加相关描述文字.

打开 Info.plist, 添加对应配置NSPhotoLibraryAddUsageDescription, type默认string, value填写: 界面提示文字.

 

效果如下:

 

模拟器 8p / 11.4

另:

参考链接:  http://www.cnblogs.com/KiVen2015/p/6627253.html