错误情况:
iOS10之后，使用Xcode 进行真机测试时，涉及设备权限使用的时候，会出现crash的情况：
| 调用照片库权限 |
[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 NSPhotoLibraryUsageDescription key with a string value explaining to the user how the app uses this data. |
| 调用相机权限 |
[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 NSCameraUsageDescription key with a string value explaining to the user how the app uses this data.|
| 调用麦克风权限 |
[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 NSMicrophoneUsageDescription key with a string value explaining to the user how the app uses this data.|
解决:
需要使用某一权限时，在Info.plist里面添加一个String字段即可：
| 所需权限 | 相应字段 |
|---|---|
| 相机权限 | NSCameraUsageDescription |
| 照片库权限 | NSPhotoLibraryUsageDescription |
| 麦克风权限 | NSMicrophoneUsageDescription |
| 定位权限(始终) | NSLocationAlwaysUsageDescription |
| 定位问题(使用应用期间) | NSLocationWhenInUseUsageDescription |
以上是部分示例，其他权限，在Info.plist文件中，添加一栏：输入 “Privacy - ”自动列出供选择
Privacy - Camera Usage Description
Privacy - Photo Library Usage Description
Privacy - Calendars Usage Description
…
配置完成后，进入APP，使用相应功能时，系统会弹窗提示使用相关权限。
End。
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