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Question Collapsible banner using AdMob

Discussion in 'Unity Ads & User Acquisition' started by PavloSupenko, Sep 8, 2023.

  1. PavloSupenko


    Jul 3, 2018
    Hi there!
    I want to try implement collapsible banner for Unity game. I'm using Google Mobile Ads official SDK.
    I didn't find any official Google guides about implementing this extension for banner ad even for native, only a few threads on some forums like here and here.

    I tried to pass collapsible arguments to request Extras:
    Code (CSharp):
    1. new AdRequest.Builder()
    2.     .AddExtra("max_ad_content_rating", adSettings.ContentRating) // works fine
    3.     .AddExtra("collapsible", "bottom") // do nothing
    4.     .Build();
    But as I understand the native examples by links above I need pass this extra settings not to request but to AdMob network directly by using
    builder extension. I've created the next implementation with parameters I need:

    Code (CSharp):
    1.         public class CollapsibleBannerMediationExtras : MediationExtras
    2.         {
    3.             // I need to test it firstly on Android so null string here
    4.             public override string IOSMediationExtraBuilderClassName { get; }
    5.             public override string AndroidMediationExtraBuilderClassName => "";
    6.             public CollapsibleBannerMediationExtras()
    7.             {
    8.                 Extras = new Dictionary<string, string>()
    9.                 {
    10.                     ["collapsible"] = "bottom"
    11.                 };
    12.             }
    13.         }
    And use it for building request:

    Code (CSharp):
    1. new AdRequest.Builder()
    2.     .AddExtra("max_ad_content_rating", adSettings.ContentRating)
    3.     .AddMediationExtras(new CollapsibleBannerMediationExtras())
    4.     .Build();
    But I get the runtime error message:
    Code (CSharp):
    1. UnityEngine.AndroidJavaException: java.lang.NoSuchMethodError: no non-static method with name='buildExtras' signature='(Ljava.util.HashMap;)Ljava/lang/Object;' in class;
    And, yeah, this class do not have the buildExtras method. So I think I should find the right class to pass it to extras implementation class, but I don't really know what class I need.

    Or maybe this functionality cannot be achieved through Unity.

    Could anyone please help me with that task ?