非页内广告的广告关闭事件

Question

我正在我的应用程序中实现Google插页式广告，效果很好，我只想获取我通过互联网搜索到的该广告的广告关闭事件，但是我没有得到此广告的任何广告关闭事件，这是我的代码

我的界面

public  interface IAdInterstitial
{
    void ShowAd();
    void LoadInterstitialAd();
}

我的android自定义渲染器

public class AdInterstitial_Droid : IAdInterstitial
{
    InterstitialAd interstitialAd;

    public AdInterstitial_Droid()
    {
        interstitialAd = new InterstitialAd(Android.App.Application.Context);

        // TODO: change this id to your admob id  
        interstitialAd.AdUnitId = "ca-app-pub-3940256099942544/1033173712";
        LoadAd();
    }

   public void LoadAd()
    {
        var requestbuilder = new AdRequest.Builder();
        interstitialAd.LoadAd(requestbuilder.Build());
    }

    public void ShowAd()
    {
        if (interstitialAd.IsLoaded)
            interstitialAd.Show();

        LoadAd();
    }

    public void LoadInterstitialAd()
    {
        var requestbuilder = new AdRequest.Builder();
        interstitialAd.LoadAd(requestbuilder.Build());
    }
}

我如何获得此广告的广告关闭事件，以便我可以在广告关闭上做一些事情

Answer 1

您可以创建自己的AdListener子类，该子类侦听OnAdClosed事件，然后调用您自己的操作：

用法示例：

public AdInterstitial_Droid()
{
    interstitialAd = new InterstitialAd(Android.App.Application.Context);
    interstitialAd.AdListener = new MyAdListener(() =>
    {
        // Ad closing, do whatever you need to do
    });

    // TODO: change this id to your admob id  
    interstitialAd.AdUnitId = "xxxxx";
    LoadAd();
}

AdListener子类

public class MyAdListener : AdListener
{
    Action OnCloseAction;

    public MyAdListener(Action OnCloseAction)
    {
        this.OnCloseAction = OnCloseAction;
    }

    public override void OnAdClosed()
    {
        OnCloseAction?.Invoke();
        base.OnAdClosed();
    }
}