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fixes #127 |
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README.md
@react-native-community/cameraroll
Getting started
$ npm install @react-native-community/cameraroll --save
Mostly automatic installation
$ react-native link @react-native-community/cameraroll && cd ios && pod install
Manual installation
iOS
- In XCode, in the project navigator, right click
Libraries
➜Add Files to [your project's name]
- Go to
node_modules
➜@react-native-community/cameraroll
and addRNCCameraroll.xcodeproj
- In XCode, in the project navigator, select your project. Add
libRNCCameraroll.a
to your project'sBuild Phases
➜Link Binary With Libraries
- Run your project (
Cmd+R
)<
Android
- Open up
android/app/src/main/java/[...]/MainApplication.java
- Add
import com.reactnativecommunity.cameraroll.CameraRollPackage;
to the imports at the top of the file - Add
new CameraRollPackage()
to the list returned by thegetPackages()
method
- Append the following lines to
android/settings.gradle
:include ':@react-native-community_cameraroll' project(':@react-native-community_cameraroll').projectDir = new File(rootProject.projectDir, '../node_modules/@react-native-community/cameraroll/android')
- Insert the following lines inside the dependencies block in
android/app/build.gradle
:compile project(':@react-native-community_cameraroll')
Migrating from the core react-native
module
This module was created when the CameraRoll was split out from the core of React Native. To migrate to this module you need to follow the installation instructions above and then change you imports from:
import { CameraRoll } from "react-native";
to:
import CameraRoll from "@react-native-community/cameraroll";
Usage
CameraRoll
provides access to the local camera roll or photo library.
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
Reference
Methods
save()
Saves the photo or video of a particular type to an album. This function works the same as saveToCameraRoll
, but it allows to specify a particular album you want to store the asset to.
CameraRoll.save(tag, { type, album })
saveToCameraRoll()
CameraRoll.saveToCameraRoll(tag, [type]);
Saves the photo or video to the photo library.
On Android, the tag must be a local image or video URI, such as "file:///sdcard/img.png"
.
On iOS, the tag can be any image URI (including local, remote asset-library and base64 data URIs) or a local video file URI (remote or data URIs are not supported for saving video at this time).
If the tag has a file extension of .mov or .mp4, it will be inferred as a video. Otherwise it will be treated as a photo. To override the automatic choice, you can pass an optional type
parameter that must be one of 'photo' or 'video'.
Returns a Promise which will resolve with the new URI.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
tag | string | Yes | See above. |
type | enum('photo', 'video') | No | Overrides automatic detection based on the file extension. |
getPhotos()
CameraRoll.getPhotos(params);
Returns a Promise with photo identifier objects from the local camera roll of the device matching shape defined by getPhotosReturnChecker
.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
params | object | Yes | Expects a params with the shape described below. |
first
: {number} : The number of photos wanted in reverse order of the photo application (i.e. most recent first for SavedPhotos). Required.after
: {string} : A cursor that matchespage_info { end_cursor }
returned from a previous call togetPhotos
.groupTypes
: {string} : Specifies which group types to filter the results to. Valid values are:Album
All
// defaultEvent
Faces
Library
PhotoStream
SavedPhotos
groupName
: {string} : Specifies filter on group names, like 'Recent Photos' or custom album titles.assetType
: {string} : Specifies filter on asset type. Valid values are:All
Videos
Photos
// default
mimeTypes
: {Array} : Filter by mimetype (e.g. image/jpeg).
Returns a Promise which when resolved will be of the following shape:
edges
: {Array} An array of node objectsnode
: {object} An object with the following shape:type
: {string}group_name
: {string}image
: {object} : An object with the following shape:uri
: {string}filename
: {string}height
: {number}width
: {number}isStored
: {boolean}playableDuration
: {number}
timestamp
: {number}location
: {object} : An object with the following shape:latitude
: {number}longitude
: {number}altitude
: {number}heading
: {number}speed
: {number}
page_info
: {object} : An object with the following shape:has_next_page
: {boolean}start_cursor
: {string}end_cursor
: {string}
Example
Loading images:
_handleButtonPress = () => {
CameraRoll.getPhotos({
first: 20,
assetType: 'Photos',
})
.then(r => {
this.setState({ photos: r.edges });
})
.catch((err) => {
//Error Loading Images
});
};
render() {
return (
<View>
<Button title="Load Images" onPress={this._handleButtonPress} />
<ScrollView>
{this.state.photos.map((p, i) => {
return (
<Image
key={i}
style={{
width: 300,
height: 100,
}}
source={{ uri: p.node.image.uri }}
/>
);
})}
</ScrollView>
</View>
);
}
deletePhotos()
CameraRoll.deletePhotos([uri]);
Requests deletion of photos in the camera roll.
On Android, the uri must be a local image or video URI, such as "file:///sdcard/img.png"
.
On iOS, the uri can be any image URI (including local, remote asset-library and base64 data URIs) or a local video file URI. The user is presented with a dialog box that shows them the asset(s) and asks them to confirm deletion. This is not able to be bypassed as per Apple Developer guidelines.
Returns a Promise which will resolve when the deletion request is completed, or reject if there is a problem during the deletion. On iOS the user is able to cancel the deletion request, which causes a rejection, while on Android the rejection will be due to a system error.
Parameters:
Name | Type | Required | Description |
---|---|---|---|
uri | string | Yes | See above. |