AdMob - iOS Implementation RewardBasedVideoAd

Question

I am trying to implement a RewardBasedVideoAd for iOS using C# in Xamarin and I just can't seem to get it to work. This is what I have so far and it does not go into any of the delegate functions. Any help or advice is much appreciated. Thanks in advance.

    public class AdMobImplementation : UIViewController, 
    IRewardBasedVideoAdDelegate
    {
        public AdMobImplementation()
        {
            RewardBasedVideoAd.SharedInstance.Delegate = this;
RewardBasedVideoAd.SharedInstance.LoadRequest(Request.GetDefaultRequest(), "ca-app-pub-3940256099942544/1712485313");
            }
        public void DidRewardUser(RewardBasedVideoAd rewardBasedVideoAd, AdReward reward)
        {
            Console.WriteLine("rewarded");
        }

     public void DidFailToLoad(RewardBasedVideoAd rewardBasedVideoAd, NSError error)
        {
            Console.WriteLine($"Reward based video ad failed to load with error: {error.LocalizedDescription}.");
        }

        public void DidReceiveAd(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Reward based video ad is received.");
        }

        public void DidOpen(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Opened reward based video ad.");
        }

        public void DidStartPlaying(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Reward based video ad started playing.");
        }

        public void DidClose(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Reward based video ad is closed.");
        }

        public void WillLeaveApplication(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Reward based video ad will leave application.");
        }
}

Answer 1

Cause: Different from BannerView. Because you used the testUnitID provided by google .So you need set the TestDeviceId.You will get error info in the output like

To get test ads on this device, call: request.testDevices = @[ kGADSimulatorID ] or @[@"xxxxxxxxxxx"] if you use real device;

Solution:

If you use the simulator

var request = Request.GetDefaultRequest();
request.TestDevices = new[] {Request.SimulatorId.ToString() };
RewardBasedVideoAd.SharedInstance.LoadRequest(Request.GetDefaultRequest(), "ca-app-pub-3940256099942544/1712485313");

If you use the real device

var request = Request.GetDefaultRequest();
request.TestDevices = new[] {"xxxxxxxxxxxxx"};
RewardBasedVideoAd.SharedInstance.LoadRequest(Request.GetDefaultRequest(), "ca-app-pub-3940256099942544/1712485313");

I used the abovecode and it works fine.

Answer 2

Problem finally solved! You don't need to deal with IRewardBasedVideoAdDelegate. All you have to do is inherit your class from RewardBasedVideoAdDelegate and override all necessary methods like:

public class AdMobImplementation : RewardBasedVideoAdDelegate
    {
        public AdMobImplementation()
        {
            RewardBasedVideoAd.SharedInstance.Delegate = this;
RewardBasedVideoAd.SharedInstance.LoadRequest(Request.GetDefaultRequest(), "ca-app-pub-3940256099942544/1712485313");
            }
        public override void DidRewardUser(RewardBasedVideoAd rewardBasedVideoAd, AdReward reward)
        {
            Console.WriteLine("rewarded");
        }

     public override void DidFailToLoad(RewardBasedVideoAd rewardBasedVideoAd, NSError error)
        {
            Console.WriteLine($"Reward based video ad failed to load with error:{error.LocalizedDescription}.");
        }

        public override void DidReceiveAd(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Reward based video ad is received.");
        }

        public override void DidOpen(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Opened reward based video ad.");
        }

        public override void DidStartPlaying(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Reward based video ad started playing.");
        }

        public override void DidClose(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Reward based video ad is closed.");
        }

        public override void WillLeaveApplication(RewardBasedVideoAd rewardBasedVideoAd)
        {
            Console.WriteLine("Reward based video ad will leave application.");
        }
}

Hope this helps to anyone looking for solution :)