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chore(doc) add android permissions section

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Bartol Karuza 2019-03-03 21:23:25 +08:00
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README.md
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@ -52,14 +52,22 @@ import CameraRoll from "@react-native-community/cameraroll";
`CameraRoll` provides access to the local camera roll or photo library.
On iOS, the `CameraRoll` API requires the `RNCCameraRoll` library to be linked. You can refer to [Linking Libraries (iOS)](linking-libraries-ios.md) to learn more.
### Permissions
The user's permission is required in order to access the Camera Roll on devices running iOS 10 or later. Add the `NSPhotoLibraryUsageDescription` key in your `Info.plist` with a string that describes how your app will use this data. This key will appear as `Privacy - Photo Library Usage Description` in Xcode.
If you are targeting devices running iOS 11 or later, you will also need to add the `NSPhotoLibraryAddUsageDescription` key in your `Info.plist`. Use this key to define a string that describes how your app will use this data. By adding this key to your `Info.plist`, you will be able to request write-only access permission from the user. If you try to save to the camera roll without this permission, your app will exit.
On Android permission is required to read the external storage. Add below line to your manifest to request this permission on app install.
```
<manifest>
...
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
...
<application>
```
### Methods
* [`saveToCameraRoll`](cameraroll.md#savetocameraroll)