react-native-camera-kit

Native camera control.

Installation

Install using npm or yarn:

npm install react-native-camera-kit --save

Or if you're using yarn:

yarn add react-native-camera-kit

iOS

Locate the module lib folder in your node modules: PROJECT_DIR/node_modules/react-native-camera-kit/ios/lib
Drag the ReactNativeCameraKit.xcodeproj project file into your project
Add libReactNativeCameraKit.a to all your target Linked Frameworks and Libraries (prone to be forgotten)
Add to your project info.plist the keys Privacy - Camera Usage Description and Privacy - Photo Library Usage Description as described here.

Android

Add the following to your project's settings.gradle file:

+ include ':rncamerakit'
+ project(':rncamerakit').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-camera-kit/android/')

Then add to your app app/build.gradle in the dependencies section:

+ compile project(":rncamerakit")

Then in MainApplication.java add:

+ import com.wix.RNCameraKit.RNCameraKitPackage;

And in the package list in the same file (e.g. getPackages) add:

+ new RNCameraKitPackage()

Running the example project

cd old-example
yarn or npm install (the yarn/npm should be in the example folder)
react-native run-ios or react-native run-android

APIs

CameraKitCamera - Camera component

<CameraKitCamera
  ref={cam => this.camera = cam}
  style={{
    flex: 1,
    backgroundColor: 'white'
  }}
  cameraOptions={{
    flashMode: 'auto',             // on/off/auto(default)
    focusMode: 'on',               // off/on(default)
    zoomMode: 'on',                // off/on(default)
    ratioOverlay:'1:1',            // optional, ratio overlay on the camera and crop the image seamlessly
    ratioOverlayColor: '#00000077' // optional
  }}
  onReadQRCode={(event) => console.log(event.nativeEvent.qrcodeStringValue)} // optional
  
/>

CameraKitCamera cameraOptions

Attribute	Values	Description
`flashMode`	`'on'`/`'off'`/`'auto'`	camera flash mode (default is `auto`)
`focusMode`	`'on'`/`'off'`	camera focus mode (default is `on`)
`zoomMode`	`'on'`/`'off'`	camera zoom mode
`ratioOverlay`	`['int':'int', ...]`	overlay on top of the camera view (crop the image to the selected size) Example: `['16:9', '1:1', '3:4']`
`ratioOverlayColor`	Color	any color with alpha (default is `'#ffffff77'`)

CameraKitCamera API

checkDeviceCameraAuthorizationStatus

const isCameraAuthorized = await CameraKitCamera.checkDeviceCameraAuthorizationStatus();

return values:

AVAuthorizationStatusAuthorized returns true

AVAuthorizationStatusNotDetermined returns -1

otherwise, returns false

requestDeviceCameraAuthorization

const isUserAuthorizedCamera = await CameraKitCamera.requestDeviceCameraAuthorization();

AVAuthorizationStatusAuthorized returns true

otherwise, returns false

capture - must have the wanted camera capture reference

Capture image (shouldSaveToCameraRoll: boolean)

const image = await this.camera.capture(true);

setFlashMode - must have the wanted camera capture reference

Set flash mode (auto/on/off)

const success = await this.camera.setFlashMode(newFlashData.mode);

changeCamera - must have the wanted camera capture reference

Change to fornt/rear camera

const success = await this.camera.changeCamera();

CameraKitGalleryView - Gallery grid component

Native Gallery View (based on UICollectionView(iOS) and RecyclerView (Android))

<CameraKitGalleryView
  ref={gallery => this.gallery = gallery}
  style={{flex: 1, marginTop: 20}}
  minimumInteritemSpacing={10}
  minimumLineSpacing={10}
  albumName={<ALBUM_NAME>}
  columnCount={3}
  onTapImage={event => {
    // event.nativeEvent.selected - ALL selected images ids
  }}
  selectedImages={<MAINTAIN_SELECETED_IMAGES>}
  selectedImageIcon={require('<IMAGE_FILE_PATH>'))}
  unSelectedImageIcon={require('<IMAGE_FILE_PATH>')}
/>

Attribute	Values	Description
`minimumInteritemSpacing`	Float	Minimum inner Item spacing
`minimumLineSpacing`	Float	Minimum line spacing
`imageStrokeColor`	Color	Image stroke color
`imageStrokeColorWidth`	Number > 0	Image stroke color width
`maxSelectedAsset` (iOS)	Number	By default value 10
`albumName`	String	Album name to show
`columnCount`	Integer	How many clumns in one row
`onTapImage`	Function	Callback when image tapped
`selectedImages`	Array	Selected images (will show the selected badge)
`selectedImageIcon`	`require(_PATH_)`	- DEPRECATED use Selection - Selected image badge image
`unSelectedImageIcon`	`require(_PATH_)`	- DEPRECATED use Selection - Unselected image badge image
`selection`	Object	See Selection section
`getUrlOnTapImage`	Boolean	iOS only - On image tap return the image internal (tmp folder) uri (intead of `Photos.framework` asset id)
`customButtonStyle`	Object	See Custom Button section
`onCustomButtonPress`	Function	Callback when custom button tapped
`contentInset` (iOS)	Object	The amount by which the gellery view content is inset from its edges (similar to `ScrollView` contentInset)
`mediaType` (iOS)	String (`'photos'` / `'videos'` / `'all'`)	By default fetch all photos from library
`remoteDownloadIndicatorType`	String (`'spinner'` / `'progress-bar'` / `'progress-pie'`)	iOS only - see Images stored in iCloud
`remoteDownloadIndicatorColor`	Color	iOS only - Color of the remote download indicator to show
`onRemoteDownloadChanged`	Function	iOS only - Callback when the device curentlly download remote image stored in the iCloud.

Custom Button

Attribute	Values	Description
`image`	`require(_PATH_)`	Custom button image
`backgroundColor`	Color	Custom button background color

Selection

Attribute	Values	Description
`selectedImage`	`require(_PATH_)`	Selected image badge image
`unselectedImage`	`require(_PATH_)`	Unselected image badge image
`imagePosition`	`bottom/top-right/left` / `center`	Selected/Unselected badge image position (Default:`top-right`)
`overlayColor`	Color	Image selected overlay color
`imageSizeAndroid`	`large`/`medium`	Android Only - Selected badge image size

Images stored in iCloud

On iOS images can be stored in iCould if the device is low on space which means full-resolution photos automatically replaced with optimized version and full resolution versions are stored in iCloud.

In this case, we need to download the image from iCloud and Photos Framework by Apple does a great job. Downloading take time and we deal with UI, so we need to show loading/progress indicator. In order to do so, we provide 3 types of loading/progress inidcators:

Sets remoteDownloadIndicatorType prop (and remoteDownloadIndicatorColor in order to sets the Color) on CameraKitGalleryView:

Attribute	Values
`'spinner'`
`'progress-bar'`
`'progress-pie'`

In order to simulate this loading behaviour, since reach low on storage situation is hard, add this prop iCloudDownloadSimulateTime={TIME_IN_SECONDS}, just DO NOT FORGET TO REMOVE IT.

QR Code

<CameraKitCameraScreen
    actions={{ rightButtonText: 'Done', leftButtonText: 'Cancel' }}
    onBottomButtonPressed={(event) => this.onBottomButtonPressed(event)}
    scanBarcode={true}
    laserColor={"blue"}
    frameColor={"yellow"}

    onReadQRCode={((event) => Alert.alert("Qr code found"))} //optional
    hideControls={false}           //(default false) optional, hide buttons and additional controls on top and bottom of screen
    showFrame={true}   //(default false) optional, show frame with transparent layer (qr code or barcode will be read on this area ONLY), start animation for scanner,that stoped when find any code. Frame always at center of the screen
    offsetForScannerFrame = {10}   //(default 30) optional, offset from left and right side of the screen
    heightForScannerFrame = {300}  //(default 200) optional, change height of the scanner frame
    colorForScannerFrame = {'red'} //(default white) optional, change colot of the scanner frame
/>

Credits

M13ProgressSuite component by Marxon13 - A suite containing many tools to display progress information on iOS.

License

The MIT License.

See LICENSE

HardikDhanani/react-native-camera-kit