expo/src/RNAdMobBanner.js

import React from 'react';
import { requireNativeComponent, View } from 'react-native';

const RNBanner = requireNativeComponent('RNAdMob', AdMobBanner);

export default class AdMobBanner extends React.Component {
  state = {
    style: {},
  };

  _handleSizeChange = event => {
    const { height, width } = event.nativeEvent;
    this.setState({ style: { width, height } });
  };

  render() {
    const {
      adUnitID,
      testDeviceID,
      bannerSize,
      didFailToReceiveAdWithError,
    } = this.props;
    return (
      <View style={this.props.style}>
        <RNBanner
          style={this.state.style}
          onSizeChange={this._handleSizeChange}
          onAdViewDidReceiveAd={this.props.adViewDidReceiveAd}
          onDidFailToReceiveAdWithError={event =>
            didFailToReceiveAdWithError(event.nativeEvent.error)}
          onAdViewWillPresentScreen={this.props.adViewWillPresentScreen}
          onAdViewWillDismissScreen={this.props.adViewWillDismissScreen}
          onAdViewDidDismissScreen={this.props.adViewDidDismissScreen}
          onAdViewWillLeaveApplication={this.props.adViewWillLeaveApplication}
          testDeviceID={testDeviceID}
          adUnitID={adUnitID}
          bannerSize={bannerSize}
        />
      </View>
    );
  }
}

AdMobBanner.propTypes = {
  style: View.propTypes.style,

  /**
   * AdMob iOS library banner size constants
   * (https://developers.google.com/admob/ios/banner)
   * banner (320x50, Standard Banner for Phones and Tablets)
   * largeBanner (320x100, Large Banner for Phones and Tablets)
   * mediumRectangle (300x250, IAB Medium Rectangle for Phones and Tablets)
   * fullBanner (468x60, IAB Full-Size Banner for Tablets)
   * leaderboard (728x90, IAB Leaderboard for Tablets)
   * smartBannerPortrait (Screen width x 32|50|90, Smart Banner for Phones and Tablets)
   * smartBannerLandscape (Screen width x 32|50|90, Smart Banner for Phones and Tablets)
   *
   * banner is default
   */
  bannerSize: React.PropTypes.string,

  /**
   * AdMob ad unit ID
   */
  adUnitID: React.PropTypes.string,

  /**
   * Test device ID
   */
  testDeviceID: React.PropTypes.string,

  /**
   * AdMob iOS library events
   */
  adViewDidReceiveAd: React.PropTypes.func,
  didFailToReceiveAdWithError: React.PropTypes.func,
  adViewWillPresentScreen: React.PropTypes.func,
  adViewWillDismissScreen: React.PropTypes.func,
  adViewDidDismissScreen: React.PropTypes.func,
  adViewWillLeaveApplication: React.PropTypes.func,
  ...View.propTypes,
};

AdMobBanner.defaultProps = {
  bannerSize: 'smartBannerPortrait',
  didFailToReceiveAdWithError: () => {},
};