Hey there, I'm looking for active contributors to help move the development of this branch forward in a stable and timely fashion. I haven't had a need for this module in quite some time and so my person time is not being allocated to it. If you are interested in contributing more actively, please contact me (same username on Twitter, Facebook, etc.) Thanks!
A camera module for React Native.
react-native header imports have changed in v0.40, and that means breaking changes for all! Reference PR & Discussion.
- if on react-native < 0.40:
npm i react-native-camera@0.4 - if on react-native >= 0.40
npm i react-native-camera@0.6
- JDK >= 1.7 (if you run on 1.6 you will get an error on "_cameras = new HashMap<>();")
- With iOS 10 and higher you need to add the "Privacy - Camera Usage Description" key to the info.plist of your project. This should be found in 'your_project/ios/your_project/Info.plist'. Add the following code:
<key>NSCameraUsageDescription</key>
<string>Your message to user when the camera is accessed for the first time</string>
<!-- Include this only if you are planning to use the camera roll -->
<key>NSPhotoLibraryUsageDescription</key>
<string>Your message to user when the photo library is accessed for the first time</string>
<!-- Include this only if you are planning to use the microphone for video recording -->
<key>NSMicrophoneUsageDescription</key>
<string>Your message to user when the microsphone is accessed for the first time</string>
npm install react-native-camera@https://github.com/lwansbrough/react-native-camera.git --savereact-native link react-native-camera
npm install react-native-camera@https://github.com/lwansbrough/react-native-camera.git --save- Add the plugin dependency to your Podfile, pointing at the path where NPM installed it:
pod 'react-native-camera', path: '../node_modules/react-native-camera'
- Run
pod install
npm install react-native-camera@https://github.com/lwansbrough/react-native-camera.git --save- In XCode, in the project navigator, right click
LibrariesâžśAdd Files to [your project's name] - Go to
node_modulesâžśreact-native-cameraand addRCTCamera.xcodeproj - In XCode, in the project navigator, select your project. Add
libRCTCamera.ato your project'sBuild PhasesâžśLink Binary With Libraries - Click
RCTCamera.xcodeprojin the project navigator and go theBuild Settingstab. Make sure 'All' is toggled on (instead of 'Basic'). In theSearch Pathssection, look forHeader Search Pathsand make sure it contains both$(SRCROOT)/../../react-native/Reactand$(SRCROOT)/../../../React- mark both asrecursive. - Run your project (
Cmd+R)
npm install react-native-camera@https://github.com/lwansbrough/react-native-camera.git --save- Open up `android/app/src/main/java/[...]/MainApplication.java
- Add
import com.lwansbrough.RCTCamera.RCTCameraPackage;to the imports at the top of the file - Add
new RCTCameraPackage()to the list returned by thegetPackages()method. Add a comma to the previous item if there's already something there.
-
Append the following lines to
android/settings.gradle:include ':react-native-camera' project(':react-native-camera').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-camera/android') -
Insert the following lines inside the dependencies block in
android/app/build.gradle:compile project(':react-native-camera') -
Declare the permissions in your Android Manifest
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
All you need is to require the react-native-camera module and then use the
<Camera/> tag.
'use strict';
import React, { Component } from 'react';
import {
AppRegistry,
Dimensions,
StyleSheet,
Text,
TouchableHighlight,
View
} from 'react-native';
import Camera from 'react-native-camera';
class BadInstagramCloneApp extends Component {
render() {
return (
<View style={styles.container}>
<Camera
ref={(cam) => {
this.camera = cam;
}}
style={styles.preview}
aspect={Camera.constants.Aspect.fill}>
<Text style={styles.capture} onPress={this.takePicture.bind(this)}>[CAPTURE]</Text>
</Camera>
</View>
);
}
takePicture() {
this.camera.capture()
.then((data) => console.log(data))
.catch(err => console.error(err));
}
}
const styles = StyleSheet.create({
container: {
flex: 1
},
preview: {
flex: 1,
justifyContent: 'flex-end',
alignItems: 'center',
height: Dimensions.get('window').height,
width: Dimensions.get('window').width
},
capture: {
flex: 0,
backgroundColor: '#fff',
borderRadius: 5,
color: '#000',
padding: 10,
margin: 40
}
});
AppRegistry.registerComponent('BadInstagramCloneApp', () => BadInstagramCloneApp);Values: Camera.constants.Aspect.fit or "fit", Camera.constants.Aspect.fill or "fill" (default), Camera.constants.Aspect.stretch or "stretch"
The aspect property allows you to define how your viewfinder renders the camera's view. For instance, if you have a square viewfinder and you want to fill the it entirely, you have two options: "fill", where the aspect ratio of the camera's view is preserved by cropping the view or "stretch", where the aspect ratio is skewed in order to fit the entire image inside the viewfinder. The other option is "fit", which ensures the camera's entire view fits inside your viewfinder without altering the aspect ratio.
Values: true (Boolean), false (default)
Applies to video capture mode only. Specifies whether or not audio should be captured with the video.
Values: Camera.constants.CaptureMode.still (default), Camera.constants.CaptureMode.video
The type of capture that will be performed by the camera - either a still image or video.
Values: Camera.constants.CaptureTarget.cameraRoll (default), Camera.constants.CaptureTarget.disk, Camera.constants.CaptureTarget.temp, Camera.constants.CaptureTarget.memory
This property allows you to specify the target output of the captured image data. The disk output has been shown to improve capture response time, so that is the recommended value. When using the deprecated memory output, the image binary is sent back as a base64-encoded string.
Values: Camera.constants.CaptureQuality.high or "high" (default), Camera.constants.CaptureQuality.medium or "medium", Camera.constants.CaptureQuality.low or "low", Camera.constants.CaptureQuality.photo or "photo", Camera.constants.CaptureQuality["1080p"] or "1080p", Camera.constants.CaptureQuality["720p"] or "720p", Camera.constants.CaptureQuality["480p"] or "480p".
This property allows you to specify the quality output of the captured image or video. By default the quality is set to high.
When choosing more-specific quality settings (1080p, 720p, 480p), note that each platform and device supports different valid picture/video sizes, and actual resolution within each of these quality settings might differ. There should not be too much variance (if any) for iOS; 1080p should give 1920x1080, 720p should give 1280x720, and 480p should give 640x480 (note that iOS 480p therefore is NOT the typical 16:9 HD aspect ratio, and the typically-HD camera preview screen may differ greatly in aspect from what you actually record!!). For Android, expect more variance: on most Androids, 1080p should give 1920x1080 and 720p should give 1280x720; however, 480p will at "best" be 853x480 (16:9 HD aspect ratio), but falls back/down to 800x480, 720x480, or "worse", depending on what is closest-but-less-than 853x480 and available on the actual device. If your application requires knowledge of the precise resolution of the output image/video, you might consider manually determine the actual resolution itself after capture has completed (particularly for 480p on Android).
Android also supports Camera.constants.CaptureQuality.preview or "preview" which matches the output image to the same one used in the preview
Values: Camera.constants.Type.front or "front", Camera.constants.Type.back or "back" (default)
Use the type property to specify which camera to use.
Values:
Camera.constants.Orientation.auto or "auto" (default),
Camera.constants.Orientation.landscapeLeft or "landscapeLeft", Camera.constants.Orientation.landscapeRight or "landscapeRight", Camera.constants.Orientation.portrait or "portrait", Camera.constants.Orientation.portraitUpsideDown or "portraitUpsideDown"
The orientation property allows you to specify the current orientation of the phone to ensure the viewfinder is "the right way up."
Values: true (default) or false
This property allows you to specify whether a shutter sound is played on capture. It is currently android only, pending a reasonable mute implementation in iOS.
Will call the specified method when a barcode is detected in the camera's view.
Event contains data (the data in the barcode) and bounds (the rectangle which outlines the barcode.)
The following barcode types can be recognised:
azteccode128code39code39mod43code93ean13ean8pdf417qrupceinterleaved2of5(when available)itf14(when available)datamatrix(when available)
The barcode type is provided in the data object.
An array of barcode types to search for. Defaults to all types listed above. No effect if onBarCodeRead is undefined.
Values:
Camera.constants.FlashMode.on,
Camera.constants.FlashMode.off,
Camera.constants.FlashMode.auto
Use the flashMode property to specify the camera flash mode.
Values:
Camera.constants.TorchMode.on,
Camera.constants.TorchMode.off,
Camera.constants.TorchMode.auto
Use the torchMode property to specify the camera torch mode.
Called when a touch focus gesture has been made.
By default, onFocusChanged is not defined and tap-to-focus is disabled.
Values:
true (default)
false
If defaultOnFocusComponent set to false, default internal implementation of visual feedback for tap-to-focus gesture will be disabled.
Called when focus has changed.
By default, onZoomChanged is not defined and pinch-to-zoom is disabled.
If set to true, the device will not sleep while the camera preview is visible. This mimics the behavior of the default camera app, which keeps the device awake while open.
If set to true, the image returned will be mirrored.
You can access component methods by adding a ref (ie. ref="camera") prop to your <Camera> element, then you can use this.refs.camera.capture(cb), etc. inside your component.
Captures data from the camera. What is captured is based on the captureMode and captureTarget props. captureMode tells the camera whether you want a still image or video. captureTarget allows you to specify how you want the data to be captured and sent back to you. See captureTarget under Properties to see the available values.
Supported options:
audio(SeecaptureAudiounder Properties)mode(SeecaptureModeunder Properties)target(SeecaptureTargetunder Properties)metadataThis is metadata to be added to the captured image.locationThis is the object returned fromnavigator.geolocation.getCurrentPosition()(React Native's geolocation polyfill). It will add GPS metadata to the image.
rotationThis will rotate the image by the number of degrees specified.
The promise will be fulfilled with an object with some of the following properties:
data: Returns a base64-encoded string with the capture data (only returned with the deprecatedCamera.constants.CaptureTarget.memory)path: Returns the path of the captured image or video file on diskwidth: (currently iOS video only) returns the video file's frame widthheight: (currently iOS video only) returns the video file's frame heightduration: (currently iOS video only) video file durationsize: (currently iOS video only) video file size (in bytes)
Returns the camera's current field of view.
Returns whether or not the camera has flash capabilities.
Ends the current capture session for video captures. Only applies when the current captureMode is video.
Exposes the native API for checking if the device has authorized access to the camera (camera and microphone permissions). Can be used to call before loading the Camera component to ensure proper UX. The promise will be fulfilled with true or false depending on whether the device is authorized. Note, as of iOS 10, you will need to add NSCameraUsageDescription and NSMicrophoneUsageDescription to your XCode project's Info.plist file or you might experience a crash.
The same as Camera.checkDeviceAuthorizationStatus() but only checks the camera permission. Note, as of iOS 10, you will need to add NSCameraUsageDescription to your XCode project's Info.plist file or you might experience a crash.
The same as Camera.checkDeviceAuthorizationStatus() but only checks the microphone permission. Note, as of iOS 10, you will need to add NSMicrophoneUsageDescription to your XCode project's Info.plist file or you might experience a crash.
This component supports subviews, so if you wish to use the camera view as a background or if you want to layout buttons/images/etc. inside the camera then you can do that.
To see more of the react-native-camera in action, you can check out the source in Example folder.
Thanks to Brent Vatne (@brentvatne) for the react-native-video module which provided me with a great example of how to set up this module.