Pasos: instale react-native-qrcode-image

 npm install git+https://github.com/Kishanjvaghela/react-native-qrcode-image.git --save

Instalar reaccionar-nativo-compartir

 npm install react-native-share --save

Vincularlo con la aplicación

 react-native link react-native-share

Use QRCode en su componente

 import QRCode from 'react-native-qrcode-image'; import Share from 'react-native-share'; class Dashboard extends React.Component { static navigationOptions = { title: Strings.dashboardTitle }; constructor(props) { super(props); this.qrCode = ''; } openShareScreen() { if (this.qrCode) { const shareOptions = { type: 'image/jpg', title: '', url: this.qrCode }; Share.open(shareOptions) .then(res => console.log(res)) .catch(err => console.error(err)); } } render() { const { type, address } = this.state; return ( <TouchableHighlight onPress={this.openShareScreen}> <View> <QRCode getBase64={base64 => { this.qrCode = base64; }} value={address} size={150} bgColor="#FFFFFF" fgColor="#000000" /> </View> </TouchableHighlight> ); } } export default Dashboard;

Cortesía: https://stackoverflow.com/a/53219478/17632251