RewardedVideoAd class

An AdMob rewarded video ad.

This class is a singleton, and RewardedVideoAd.instance provides a reference to the single instance, which is created at launch. The native Android and iOS APIs for AdMob use a singleton to manage rewarded video ad objects, and that pattern is reflected here.

Apps should assign a callback function to RewardedVideoAd's listener property in order to receive reward notifications from the AdMob SDK:

RewardedVideoAd.instance.listener = (RewardedVideoAdEvent event,
    [String rewardType, int rewardAmount]) {
    print("You were rewarded with $rewardAmount $rewardType!");
  }
};

The function will be invoked when any of the events in RewardedVideoAdEvent occur.

To load and show ads, call the load method:

RewardedVideoAd.instance.load(myAdUnitString, myTargetingInfoObj);

Later (any point after your listener callback receives the RewardedVideoAdEvent.loaded event), call the show method:

RewardedVideoAd.instance.show();

Only one rewarded video ad can be loaded at a time. Because the video assets are so large, it's a good idea to start loading an ad well in advance of when it's likely to be needed.