react-native-qr-generator

react-native-qr-generator

A React Native QR code image generator, that uses faster, native image rendering as opposed to other libraries, which rely on a Javascript/SVG implementation.

This library wraps two existing native QR code generator libraries:

Android: https://github.com/kenglxn/QRGen
iOS: https://github.com/gscarrone/iOS-QR-Code-Generator

Getting started

$ npm install react-native-qr-generator --save

Mostly automatic installation

$ react-native link react-native-qr-generator

IMPORTANT for Android

In your project's android/build.gradle file, include the following:

allprojects {
	repositories {
		...
		maven { url "https://jitpack.io" }
	}
}

Manual installation

iOS

1. In XCode, in the project navigator, right click Libraries ➜ Add Files to [your project's name]
2. Go to node_modules ➜ react-native-qr-generator and add RNReactNativeQrcodeNative.xcodeproj
3. In XCode, in the project navigator, select your project. Add libRNReactNativeQrcodeNative.a to your project's Build Phases ➜ Link Binary With Libraries
4. Run your project (Cmd+R)

Android

1. Open up android/app/src/main/java/[...]/MainActivity.java

• Add import com.zapper.QRCodePackage; to the imports at the top of the file
• Add new QRCodePackage() to the list returned by the getPackages() method

1. Append the following lines to android/settings.gradle:

   include ':react-native-qr-generator'
   project(':react-native-qr-generator').projectDir = new File(rootProject.projectDir, 	'../node_modules/react-native-qr-generator/android')
   

2. Insert the following lines inside the dependencies block in android/app/build.gradle:

     compile project(':react-native-qr-generator')
   

3. In your project's android/build.gradle file, include the following:

    ```
    	allprojects {
    		repositories {
    			...
    			maven { url "https://jitpack.io" }
    		}
    	}
    ```
   

Usage

import QRCode from 'react-native-qr-generator'

return <QRCode size={200} value="https://www.zapper.com" />

Supported options:

Name	Type	Default	Description
value	string	-	String value to be encoded as a QR code
size	integer	200	Size of the QR Code image, sets the width and height style properties of the view to this value
foregroundColor	string	#000000	Hex string for the main QR Code color
backgroundColor	string	#FFFFFF	Hex string for the QR Code background color

Credits

Android: https://github.com/kenglxn/QRGen
iOS: https://github.com/gscarrone/iOS-QR-Code-Generator