App.js

/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 *
 * @format
 * @flow
 */

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

const instructions = Platform.select({
  ios: 'Press Cmd+R to reload,\n' + 'Cmd+D or shake for dev menu',
  android:
    'Double tap R on your keyboard to reload,\n' +
    'Shake or press menu button for dev menu',
});

const Images = [
  {
    uri: "https://i.imgur.com/mxgtWKt.jpg",
    label: "Cat on a blue blanket"
  },
  {
    uri: "https://i.imgur.com/XCRnNWn.jpg",
    label: "A cat toy"
  },
  {
    uri: "https://i.imgur.com/dqQX1K0.jpg",
    label: "A close up of a dog"
  },
  {
    uri: "https://i.imgur.com/nZXbSbh.jpg",
    label: "Sheep next to a cat"
  },
  {
    uri: "https://i.imgur.com/mXCjefR.jpg",
    label: "Cat laying on the grass"
  },
  {
    uri: "https://i.imgur.com/AGyxRcc.jpg",
    label: "Bird sitting on a railing"
  }
];

type Props = {};
export default class App extends Component<Props> {
  state = {
    index: 0,
    imageWidth: null
  }

  nextImage(event) {
    const { index, imageWidth } = this.state,
          X = event.nativeEvent.locationX,
          delta = (X < imageWidth / 2) ? -1 : +1;

    let newIndex = (index + delta) % Images.length;

    if (newIndex < 0) {
      newIndex = Images.length - Math.abs(newIndex);
    }

    this.setState({
      index: newIndex
    });
  }

  onImageLayout(event) {
    this.setState({
      imageWidth: event.nativeEvent.layout.width
    });
  }

  render() {
    const image = Images[this.state.index];

    return (
      <View style={styles.container}>
        <View style={styles.empty} />
        <TouchableHighlight onPress={this.nextImage.bind(this)}
                            style={styles.image}>
          <View>
            <Image source={{uri: image.uri}}
                   style={styles.image}
                   onLayout={this.onImageLayout.bind(this)} />
            <Text style={styles.imageLabel}>{image.label}</Text>
          </View>
        </TouchableHighlight>
        <View style={styles.empty} />
      </View>        
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#abcdef',
  },
  image: {
    flex: 2,
    width: 320,
    justifyContent: 'flex-end',
    alignItems: 'center'
  },
  imageLabel: {
    textAlign: 'center',
    backgroundColor: 'rgba(100, 100, 100, 0.5)',
    color: 'white',
    width: 320
  },
  empty: {
    flex: 1
  }
});