Upload.js

import React from 'react';
import ImagePicker from 'react-native-image-picker';
import {Button} from 'react-native-elements';

const options = {
  title: 'Select Video to Upload',
  mediaType: 'video',
  storageOptions: {
    skipBackup: true,
    path: 'images',
  },
};

class UploadButton extends React.Component {
  render() {
    return <Button title="Upload a Video" onPress={this._handleButtonPress} />;
  }

  _handleButtonPress = () => {
    ImagePicker.showImagePicker(options, response => {
      if (response.didCancel) {
        console.log('User cancelled image picker');
      } else if (response.error) {
        console.log('ImagePicker Error: ', response.error);
      } else if (response.customButton) {
        console.log('User tapped custom button: ', response.customButton);
      } else {
        // This response object will hold the URI
        console.log(response)
      }
    });
  };
}