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.
Make sure your banner view is defined with the size you would like users to see
in the regular (collapsed) banner state. Include an extras parameter in the ad
request 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.
Swift
funcloadBannerAd(){bannerView.adUnitID="ca-app-pub-3940256099942544/8388050270"bannerView.rootViewController=selfletviewWidth=FRAME_WIDTHbannerView.adSize=currentOrientationAnchoredAdaptiveBanner(width:viewWidth)letrequest=AdManagerRequest// Create an extra parameter that aligns the bottom of the expanded ad to// the bottom of the bannerView.letextras=Extras()extras.additionalParameters=["collapsible":"bottom"]request.register(extras)bannerView.load(request)}
Objective-C
-(void)loadBannerAd{self.bannerView.adUnitID=@"ca-app-pub-3940256099942544/8388050270";CGFloatviewWidth=FRAME_WIDTH;self.bannerView.adSize=GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth(viewWidth);GADRequest*request=[GADRequestrequest];// Create an extra parameter that aligns the bottom of the expanded ad to the// bottom of the bannerView.GADExtras*extras=[[GADExtrasalloc]init];extras.additionalParameters=@{@"collapsible":@"bottom"};[requestregisterAdNetworkExtras:extras];
[self.bannerViewloadRequest:request];}
Ads refreshing behavior
For apps that configure auto-refresh for banner ads in the
Ad Manager 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 isCollapsible to check if the last
banner loaded is collapsible. If the request fails to load and the previous
banner is collapsible, the API returns true.
Swift
funcbannerViewDidReceiveAd(_bannerView:BannerView){print("The last loaded banner is \(bannerView.isCollapsible?"":"not") collapsible.")}
Objective-C
-(void)bannerViewDidReceiveAd:(GADBannerView*)bannerView{NSLog(@"The last loaded banner is %@collapsible.",(bannerView.isCollapsible?@"":@"not "));}
Mediation
Collapsible banner ads are only available for Google demand. Ads served through
mediation show as normal, non-collapsible banner ads.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[[["\u003cp\u003eCollapsible banner ads start as larger overlays and can be collapsed to a standard banner size, improving performance for smaller anchored ads.\u003c/p\u003e\n"],["\u003cp\u003eTo implement, define the banner view's collapsed size and include an extras parameter in the ad request specifying the placement (\u003ccode\u003etop\u003c/code\u003e or \u003ccode\u003ebottom\u003c/code\u003e).\u003c/p\u003e\n"],["\u003cp\u003eWhile auto-refresh is enabled, subsequent refreshes after a collapsible banner won't request another collapsible banner to avoid impacting user experience.\u003c/p\u003e\n"],["\u003cp\u003eYou can verify if a loaded ad is collapsible by calling \u003ccode\u003eisCollapsible\u003c/code\u003e on the banner view.\u003c/p\u003e\n"],["\u003cp\u003eDuring the beta period, collapsible banner ads are only supported for Google demand and not for ads served through mediation.\u003c/p\u003e\n"]]],[],null,["Select platform: [Android](/ad-manager/mobile-ads-sdk/android/banner/collapsible \"View this page for the Android platform docs.\") [iOS](/ad-manager/mobile-ads-sdk/ios/banner/collapsible \"View this page for the iOS platform docs.\") [Unity](/ad-manager/mobile-ads-sdk/unity/banner/collapsible \"View this page for the Unity platform docs.\") [Flutter](/ad-manager/mobile-ads-sdk/flutter/banner/collapsible \"View this page for the Flutter platform docs.\")\n\n\u003cbr /\u003e\n\nCollapsible banner ads are banner ads that are initially presented as a larger\noverlay, with a button to collapse them to the originally requested banner size.\nCollapsible banner ads are intended to improve performance of anchored ads that\nare otherwise a smaller size. This guide shows how to turn on collapsible banner\nads for existing banner placements.\n\nPrerequisites\n\n- Complete the [banner ads get started guide](/ad-manager/mobile-ads-sdk/ios/banner).\n\nImplementation\n\nMake sure your banner view is defined with the size you would like users to see\nin the regular (collapsed) banner state. Include an extras parameter in the ad\nrequest with `collapsible` as the key and the placement of the ad as the value.\n\nThe collapsible placement defines how the expanded region anchors to the banner\nad.\n\n| `Placement` value | Behavior | Intended use case |\n|-------------------|-------------------------------------------------------------------------|-----------------------------------------------|\n| `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. |\n| `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. |\n\nIf the loaded ad is a collapsible banner, the banner shows the collapsible\noverlay immediately once it's placed in the view hierarchy.\n\nSwift \n\n func loadBannerAd() {\n bannerView.adUnitID = \"ca-app-pub-3940256099942544/8388050270\"\n bannerView.rootViewController = self\n let viewWidth = FRAME_WIDTH\n bannerView.adSize = currentOrientationAnchoredAdaptiveBanner(width: viewWidth)\n\n let request = AdManagerRequest\n\n // Create an extra parameter that aligns the bottom of the expanded ad to\n // the bottom of the bannerView.\n let extras = Extras()\n extras.additionalParameters = \\[\"collapsible\" : \"bottom\"\\]\n request.register(extras)\n\n bannerView.load(request)\n }\n\nObjective-C \n\n - (void)loadBannerAd {\n self.bannerView.adUnitID = @\"ca-app-pub-3940256099942544/8388050270\";\n CGFloat viewWidth = FRAME_WIDTH;\n self.bannerView.adSize = GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth(viewWidth);\n\n GADRequest *request = [GADRequest request];\n\n // Create an extra parameter that aligns the bottom of the expanded ad to the\n // bottom of the bannerView.\n GADExtras \\*extras = \\[\\[GADExtras alloc\\] init\\];\n extras.additionalParameters = @{@\"collapsible\" : @\"bottom\"};\n \\[request registerAdNetworkExtras:extras\\];\n\n [self.bannerView loadRequest:request];\n }\n\n\u003cbr /\u003e\n\nAds refreshing behavior\n\nFor apps that configure auto-refresh for banner ads in the\nAd Manager web interface, when a collapsible banner ad\nis requested for a banner slot, subsequent ad refreshes won't request\ncollapsible banner ads. This is because showing a collapsible banner on every\nrefresh could have a negative impact on user experience.\n\nIf you want to load another collapsible banner ad later in the session, you can\nload an ad manually with a request containing the collapsible parameter.\n\nCheck if a loaded ad is collapsible\n\nNon-collapsible banner ads are eligible to return for collapsible banner\nrequests to maximize performance. Call `isCollapsible` to check if the last\nbanner loaded is collapsible. If the request fails to load and the previous\nbanner is collapsible, the API returns true. \n\nSwift \n\n func bannerViewDidReceiveAd(_ bannerView: BannerView) {\n print(\"The last loaded banner is \\(bannerView.isCollapsible ? \"\" : \"not\") collapsible.\")\n }\n\nObjective-C \n\n - (void)bannerViewDidReceiveAd:(GADBannerView *)bannerView {\n NSLog(@\"The last loaded banner is %@collapsible.\", (bannerView.isCollapsible ? @\"\" : @\"not \"));\n }\n\n\u003cbr /\u003e\n\nMediation\n\nCollapsible banner ads are only available for Google demand. Ads served through\nmediation show as normal, non-collapsible banner ads."]]