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Collapsible Banner Ads

Collapsible banner ads are banner ads that are initially presented as a larger overlay, with a button to collapse them to the originally requested banner size. Collapsible banner ads are intended to improve performance of anchored ads that are otherwise a smaller size. This guide shows how to turn on collapsible banner ads for existing banner placements.

This document is based on:

Prerequisites

Implementation

Make sure your AdView is defined with the size you would like users to see in the regular (collapsed) banner state. Include an extras parameter in the AdRequest with collapsible as the key and the placement of the ad as the value.

The collapsible placement defines how the expanded region anchors to the banner ad.

Placement value Behavior Intended use case
top The top of the expanded ad aligns to the top of the collapsed ad. The ad is placed at the top of the screen.
bottom The bottom of the expanded ad aligns to the bottom of the collapsed ad. The ad is placed at the bottom of the screen.

If the loaded ad is a collapsible banner, the banner shows the collapsible overlay immediately once it's placed in the view hierarchy.

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var ad_request := AdRequest.new()
ad_request.extras["collapsible"] = "bottom"

_ad_view.load_ad(ad_request)

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var adRequest = new AdRequest();
adRequest.Extras["collapsible"] = "bottom";

_adView.LoadAd(adRequest);

Important

The collapsible banner feature is not available for large anchored adaptive banners. If your app requires collapsible functionality, use standard anchored adaptive banners.

Ads refreshing behavior

For apps that configure auto-refresh for banner ads in the AdMob web interface, when a collapsible banner ad is requested for a banner slot, subsequent ad refreshes won't request collapsible banner ads. This is because showing a collapsible banner on every refresh could have a negative impact on user experience.

If you want to load another collapsible banner ad later in the session, you can load an ad manually with a request containing the collapsible parameter.

Check if a loaded ad is collapsible

Non-collapsible banner ads are eligible to return for collapsible banner requests to maximize performance. Call is_collapsible() (or IsCollapsible() in C#) to check if the last banner loaded is collapsible.

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func _ready() -> void:
    # ...
    _ad_view.ad_listener.on_ad_loaded = _on_ad_loaded

func _on_ad_loaded() -> void:
    var is_collapsible: bool = _ad_view.is_collapsible()
    print("Ad loaded. Collapsible: %s" % is_collapsible)

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private void RegisterAdListener()
{
    _adView.AdListener = new AdListener
    {
        OnAdLoaded = () => 
        {
            bool isCollapsible = _adView.IsCollapsible();
            GD.Print($"Ad loaded. Collapsible: {isCollapsible}");
        }
    };
}

Mediation

Collapsible banner ads are only available for Google demand. Ads served through mediation show as normal, non-collapsible banner ads.