react-native-fast-camera

React Native Fast Camera

The most needed high-quality native camera for react native. A fast native camera controllable by react native components.

Full Example

Motivation

I was looking for a flexible and fast camera component for react native, tried react-native-camera and react-native-camera-kit but was not satisfied with the performance. In a nutshell, this module is the product of months of research and experimentations with an aim to create a useful solution.

Getting Started

1. Installation

• with yarn: yarn add react-native-fast-camera
• with npm: npm install --save react-native-fast-camera

2. Linking

• 1. Copy ios/FastCamera folder to your ios folder.
• 1. from Xcode Project navigator select Add Files to "project name" then select ios/FastCamera.

3. Permissions

Add the following permission strings to your info.plist file, update the messages according to your needs. Otherwise your app will crash.

<key>NSCameraUsageDescription</key>
<string>We need to access your camera to take pictures.</string>
<key>NSPhotoLibraryAddUsageDescription</key>
<string>We need to access your photo library to save the captured pictures.</string>

Usage

  import FastCamera, { Methods } from 'react-native-fast-camera';

  <FastCamera style={{ height: cameraHeight, width: cameraWidth }}
    onSaveSuccess={imageUrl => {
      console.log("onSaveSuccess: ", imageUrl);
    }}
    onGalleryImage={imageUrl => {
      console.log("onGalleryImage: ", imageUrl);
    }}
    onFlashToggle={isflashOn => {
      console.log('flash info: ', isflashOn);
    }}
  >
    {/* here render your buttons to control the camera component */}
  </FastCamera>

API

Property	Type	Description
onSaveSuccess	Callback	a callback triggered when the image was captured and saved successfully
onGalleryImage	Callback	a callback triggered when the image was selected from the user photo library
onFlashToggle	Callback	a callback triggered when the flash status change
timer	Method	Methods.timer() a method to show timer UI
toggleFlash	Method	Methods.toggleFlash() a method to toggle flash mode
takePicture	Method	Methods.takePicture() a method to capture a picture
pickImage	Method	Methods.pickImage() a method to pick an image from the photo library
flipCamera	Method	Methods.flipCamera() a method to flip the camera face (front/back)

TODO

• Take a picture.
• Pick an image from photo library.
• Flip camera.
• Flash On/Off mode.
• Add timer.
• Add Android support.
• Add prop to set camera default face (front/back).
• Export the iOS component as a pod module.

ACKNOWLEDGEMENTS

• EVNCamera, used as the base for iOS part.