How to dynamically get image size in React Native

In this React Native source code example, the source code below illustrate how to dynamically get image size in React Native.

You can copy and adopt this source code example to your React Native project without reinventing the wheel.

import React, { Component } from 'react';
import { StyleSheet, View, Image, Text} from 'react-native';

export default class App extends Component {
  constructor(){
    super();
    this.state = {
      ImageWidth: null,
      ImageHeight: null,
    }
  this.ImageURI = 'http://loremflickr.com/640/480/car';
  }
  componentDidMount(){
    Image.getSize( this.ImageURI, ( Width, Height ) =>
        {
            this.setState({ ImageWidth: Width, ImageHeight: Height });
        },(errorMsg) =>
        {
            console.log( errorMsg );
        });

  }

render() {
   return (
      <View style={styles.container}>
          <Image source = {{ uri: this.ImageURI }} style = { styles.ImageStyle } />

          <View style={{alignItems: 'center'}}>
            <Text style={styles.TextStyle}>{this.state.ImageWidth } Pixels (Width) </Text>
            <Text style={styles.TextStyle}>{this.state.ImageHeight } Pixels (Height) </Text>
          </View>
      </View>
   );
 }
}

const styles = StyleSheet.create({
  container:{
      flex:1,
      padding: 10,
      justifyContent: 'center',
      alignItems: 'center',
  },
  ImageStyle:{
        resizeMode: 'cover',
        width: '50%',
        height: '50%'
    },
  TextStyle:{
      fontSize: 18,
      color: '#000',
      textAlign: 'center'
    }
});

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