Rendre URL de l'image dans React Native

import React, { Component } from 'react';
import {
 AppRegistry, Image
} from 'react-native';

export default class Myproject extends Component {
 render() {

 let Image_Http_URL ={ uri: 'https://reactnativecode.com/wp-content/uploads/2017/05/react_thumb_install.png'};

 return (
 <Image source={Image_Http_URL} style = {{height: 200, resizeMode : 'stretch', margin: 5 }} />
 );
 }
}

AppRegistry.registerComponent('Myproject', () => Myproject);
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