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Inline adaptive banners

  • Adaptive banners optimize ad size for each device, maximizing performance by using the provided ad width to determine the optimal size, unlike fixed-size banners with fixed heights.

  • Inline adaptive banners are variable-height banners, potentially as tall as the device screen, designed for placement within scrolling content.

  • Implementation requires using the latest Google Mobile Ads SDK, providing the ad width (considering safe areas), and using the AdSize methods to get the adaptive banner size.

  • Developers need to update the ad container height after the ad loads using BannerAd.getPlatformAdSize() to accommodate potential height changes.
Select platform: Android iOS Flutter

Adaptive banners are the next generation of responsive ads, maximizing performance by optimizing ad size for each device. Improving on fixed-size banners, which only supported fixed heights, adaptive banners let developers specify the ad-width and use this to determine the optimal ad size.

To pick the best ad size, inline adaptive banners use maximum instead of fixed heights. This results in opportunities for improved performance.

When to use inline adaptive banners

Inline adaptive banners are larger, taller banners compared to anchored adaptive banners. They are of variable height, and can be as tall as the device screen.

They are intended to be placed in scrolling content, for example:

Prerequisites

Before you begin

When implementing adaptive banners in your app, note these points:

  • Ensure you are using the latest version of Google Mobile Ads SDK, and if using AdMob Mediation, the latest versions of your mediation adapters.

  • The inline adaptive banner sizes are designed to work best when using the full available width. In most cases, this will be the full width of the screen of the device in use. Be sure to take into account applicable safe areas.

  • The methods for getting the ad size are

    • AdSize.getCurrentOrientationInlineAdaptiveBannerAdSize(int width)
    • AdSize.getLandscapeInlineAdaptiveBannerAdSize(int width)
    • AdSize.getPortraitInlineAdaptiveBannerAdSize(int width)
    • AdSize.getInlineAdaptiveBannerAdSize(int width, int maxHeight)

  • When using the inline adaptive banner APIs, Google Mobile Ads SDK returns an AdSize with the given width and an inline flag. The height is either zero or maxHeight, depending on which API you're using. The actual height of the ad is made available when it's returned.

  • An inline adaptive banner is designed to be placed in scrollable content. The banner can be as tall as the device screen or limited by a maximum height, depending on the API.

Implementation

Follow the steps below to implement a simple inline adaptive banner.

  1. Get an inline adaptive banner ad size. The size you get will be used to request the adaptive banner. To get the adaptive ad size make sure that you:
    1. Get the width of the device in use in density independent pixels, or set your own width if you don't want to use the full width of the screen. You can use MediaQuery.of(context) to get the screen width.
    2. Use the appropriate static methods on the ad size class, such as AdSize.getCurrentOrientationInlineAdaptiveBannerAdSize(int width) to get an inline adaptive AdSize object for the current orientation.
    3. If you wish to limit the height of the banner, you can use the static method AdSize.getInlineAdaptiveBannerAdSize(int width, int maxHeight).
  2. Create a BannerAd object with your ad unit ID, the adaptive ad size, and an ad request object.
  3. Load the ad.
  4. In the onAdLoaded callback, use BannerAd.getPlatformAdSize() to get the updated platform ad size and update the AdWidget container height.

Code example

Here's an example widget that loads an inline adaptive banner to fit the width of the screen, accounting for insets:

import'package:flutter/material.dart';
import'package:google_mobile_ads/google_mobile_ads.dart';
/// This example demonstrates inline adaptive banner ads.
///
/// Loads and shows an inline adaptive banner ad in a scrolling view,
/// and reloads the ad when the orientation changes.
classInlineAdaptiveExampleextendsStatefulWidget{
@override
_InlineAdaptiveExampleStatecreateState()=>_InlineAdaptiveExampleState();
}
class_InlineAdaptiveExampleStateextendsState<InlineAdaptiveExample>{
staticconst_insets=16.0;
BannerAd?_inlineAdaptiveAd;
bool_isLoaded=false;
AdSize?_adSize;
lateOrientation_currentOrientation;
doubleget_adWidth=>MediaQuery.of(context).size.width-(2*_insets);
@override
voiddidChangeDependencies(){
super.didChangeDependencies();
_currentOrientation=MediaQuery.of(context).orientation;
_loadAd();
}
void_loadAd()async{
await_inlineAdaptiveAd?.dispose();
setState((){
_inlineAdaptiveAd=null;
_isLoaded=false;
});
// Get an inline adaptive size for the current orientation.
AdSizesize=AdSize.getCurrentOrientationInlineAdaptiveBannerAdSize(
_adWidth.truncate());
_inlineAdaptiveAd=BannerAd(
// TODO: replace this test ad unit with your own ad unit.
adUnitId:'ca-app-pub-3940256099942544/9214589741',
size:size,
request:AdRequest(),
listener:BannerAdListener(
onAdLoaded:(Adad)async{
print('Inline adaptive banner loaded: ${ad.responseInfo}');
// After the ad is loaded, get the platform ad size and use it to
// update the height of the container. This is necessary because the
// height can change after the ad is loaded.
BannerAdbannerAd=(adasBannerAd);
finalAdSize?size=awaitbannerAd.getPlatformAdSize();
if(size==null){
print('Error: getPlatformAdSize() returned null for $bannerAd');
return;
}
setState((){
_inlineAdaptiveAd=bannerAd;
_isLoaded=true;
_adSize=size;
});
},
onAdFailedToLoad:(Adad,LoadAdErrorerror){
print('Inline adaptive banner failedToLoad: $error');
ad.dispose();
},
),
);
await_inlineAdaptiveAd!.load();
}
/// Gets a widget containing the ad, if one is loaded.
///
/// Returns an empty container if no ad is loaded, or the orientation
/// has changed. Also loads a new ad if the orientation changes.
Widget_getAdWidget(){
returnOrientationBuilder(
builder:(context,orientation){
if(_currentOrientation==orientation&&
_inlineAdaptiveAd!=null&&
_isLoaded&&
_adSize!=null){
returnAlign(
child:Container(
width:_adWidth,
height:_adSize!.height.toDouble(),
child:AdWidget(
ad:_inlineAdaptiveAd!,
),
));
}
// Reload the ad if the orientation changes.
if(_currentOrientation!=orientation){
_currentOrientation=orientation;
_loadAd();
}
returnContainer();
},
);
}
@override
Widgetbuild(BuildContextcontext)=>Scaffold(
appBar:AppBar(
title:Text('Inline adaptive banner example'),
),
body:Center(
child:Padding(
padding:constEdgeInsets.symmetric(horizontal:_insets),
child:ListView.separated(
itemCount:20,
separatorBuilder:(BuildContextcontext,intindex){
returnContainer(
height:40,
);
},
itemBuilder:(BuildContextcontext,intindex){
if(index==10){
return_getAdWidget();
}
returnText(
'Placeholder text',
style:TextStyle(fontSize:24),
);
},
),
),
));
@override
voiddispose(){
super.dispose();
_inlineAdaptiveAd?.dispose();
}
}

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Last updated 2025年10月15日 UTC.