When the app connected to APP-ADS.TXT in AdMob is not visible

 When registering an app in Google AdMob, the following must be set.

1. Add app

  Add an app registered in the Play Store

2. Register the developer site of the registered appAdd app

  Register the app's website on the play console

3. Register APP-ADS.TXT on the website

  The app should be visible in the APP-ADS.TXT tab

  If you do not see the app connected to the APP-ADS.TXT tab of the AdMob site even after doing this, try the following.

MobileAds.Initialize

  How to attach AdMob ads to Xamarin.Forms apps is well known on the Internet, but most of them are wrong.

  It is said to be put in Oncreate of MainActivity.cs as follows.

        protected override void OnCreate(Bundle savedInstanceState)

        {

            TabLayoutResource = Resource.Layout.Tabbar;

            ToolbarResource = Resource.Layout.Toolbar;

            base.OnCreate(savedInstanceState);

            MobileAds.Initialize(ApplicationContext, "//APPLICATION_ID//");

            Xamarin.Essentials.Platform.Init(this, savedInstanceState);

            global::Xamarin.Forms.Forms.Init(this, savedInstanceState);

            LoadApplication(new App());

        }

  MobileAds.Initialize(ApplicationContext, "//APPLICATION_ID//");

  It is said that this part is no longer used. 

  Application ID is registered in AndroidManifest.xml, so you can just use it as follows.

  MobileAds.Initialize(this);

  Let's distribute by modifying as above.