Touchable = ({onPress, children}) => {
  const child = React.Children.only(children);
  if (Platform.OS === 'android') {
    return (
      <TouchableNativeFeedback onPress={onPress}>
        {child}
      </TouchableNativeFeedback>
    );
  } else {
    return (
      <TouchableHighlight onPress={onPress} underlayColor="#ddd">
        {child}
      </TouchableHighlight>
    );
  }
}
Renders the right type of Touchable for the list item, based on platform.