Updated 27 May 2022
Google’s AdMob is a mobile advertising network for app developers. It allows you to monetize your app and begin making money from it by displaying Google adverts in your app. AdMobs in flutter is the preferred option for developers since it is simple and free to implement, does the most of the work for you, and allows you to generate money without having to learn difficult coding. It is completely configurable; you can choose where and what type of adverts to display.
You’ll need a Google account to get started with AdMobs in flutter, which will be required to log into the AdMob interface. You must first add your app and then generate some ad units for use in your app. It’s simple to make ad units. All you have to do is follow Google’s guidelines, but in this blog, we’ll focus on how to incorporate them into your Flutter application.Flutter currently supports loading and displaying banner, interstitial (full-screen), native ads, and rewarded video ads.
You have complete control over the adverts that appear in your app. You can do so by going to the AdMob console and selecting your app. Then go to “Blocking Controls” to get a list of all the different sorts of advertising that can be displayed in your app. You can turn off the advertising you don’t want with the switch provided.
1) Project Setup:
Create a new flutter project and add latest google_mobile_ads version under dependencies in pubspec.yaml file of your project as following example and run flutter pub get command to install the package in your project.
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dependencies: google_mobile_ads: ^1.2.0 |
2) Import Package:
Import google_mobile_ads package in your class by using following code.
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import 'package:google_mobile_ads/google_mobile_ads.dart'; |
3) Initialize AdMobs:
You need to initialize Mobile Ads. You can do this in your main method of you main class or any time before creating an ad, but just once. Example.
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void main() { WidgetsFlutterBinding.ensureInitialized(); MobileAds.instance.initialize(); runApp(MyApp()); } |
4.) Register Your Device:
In case you are using test ads which you should while developing the app. You need to register your device to show test apps. Otherwise, your apps will be not be displayed. Below provided code segment helps you to do this.
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const String testDevice = 'YOUR_DEVICE_ID'; |
5. Platform Specific:
Android: Open the android/app/src/main/AndroidManifest.xml file in Android Studio.
Add your AdMob app ID by adding a tag with the name com.google.android.gms.ads.APPLICATION_ID. For example, if your AdMob app ID is ca-app-pub-3940256099942544~3347511713, then you need to add the following lines to the AndroidManifest.xml file.
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<manifest> ... <application> ... <meta-data android:name="com.google.android.gms.ads.APPLICATION_ID" android:value="ca-app-pub-3940256099942544~3347511713"/> </application> </manifest> |
iOS: Open the ios/Runner/Info.plist file in Android Studio.
Add a GADApplicationIdentifier key with the string value of your AdMob app ID. For example, if your AdMob app ID is ca-app-pub-3940256099942544~1458002511, then you need to add the following lines to the Info.plist file.
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... <key>GADApplicationIdentifier</key> <string>ca-app-pub-3940256099942544~1458002511</string> ... |
6. Complete Implementation:
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// Copyright 2021 Google LLC // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // https://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // ignore_for_file: public_member_api_docs import 'dart:io' show Platform; import 'package:flutter/material.dart'; import 'package:google_mobile_ads/google_mobile_ads.dart'; import 'anchored_adaptive_example.dart'; import 'fluid_example.dart'; import 'inline_adaptive_example.dart'; import 'reusable_inline_example.dart'; void main() { WidgetsFlutterBinding.ensureInitialized(); MobileAds.instance.initialize(); runApp(MyApp()); } // You can also test with your own ad unit IDs by registering your device as a // test device. Check the logs for your device's ID value. const String testDevice = 'YOUR_DEVICE_ID'; const int maxFailedLoadAttempts = 3; class MyApp extends StatefulWidget { @override _MyAppState createState() => _MyAppState(); } class _MyAppState extends State<MyApp> { static final AdRequest request = AdRequest( keywords: <String>['foo', 'bar'], contentUrl: 'http://foo.com/bar.html', nonPersonalizedAds: true, ); InterstitialAd? _interstitialAd; int _numInterstitialLoadAttempts = 0; RewardedAd? _rewardedAd; int _numRewardedLoadAttempts = 0; RewardedInterstitialAd? _rewardedInterstitialAd; int _numRewardedInterstitialLoadAttempts = 0; @override void initState() { super.initState(); _createInterstitialAd(); _createRewardedAd(); _createRewardedInterstitialAd(); } void _createInterstitialAd() { InterstitialAd.load( adUnitId: Platform.isAndroid ? 'ca-app-pub-3940256099942544/1033173712' : 'ca-app-pub-3940256099942544/4411468910', request: request, adLoadCallback: InterstitialAdLoadCallback( onAdLoaded: (InterstitialAd ad) { print('$ad loaded'); _interstitialAd = ad; _numInterstitialLoadAttempts = 0; _interstitialAd!.setImmersiveMode(true); }, onAdFailedToLoad: (LoadAdError error) { print('InterstitialAd failed to load: $error.'); _numInterstitialLoadAttempts += 1; _interstitialAd = null; if (_numInterstitialLoadAttempts < maxFailedLoadAttempts) { _createInterstitialAd(); } }, )); } void _showInterstitialAd() { if (_interstitialAd == null) { print('Warning: attempt to show interstitial before loaded.'); return; } _interstitialAd!.fullScreenContentCallback = FullScreenContentCallback( onAdShowedFullScreenContent: (InterstitialAd ad) => print('ad onAdShowedFullScreenContent.'), onAdDismissedFullScreenContent: (InterstitialAd ad) { print('$ad onAdDismissedFullScreenContent.'); ad.dispose(); _createInterstitialAd(); }, onAdFailedToShowFullScreenContent: (InterstitialAd ad, AdError error) { print('$ad onAdFailedToShowFullScreenContent: $error'); ad.dispose(); _createInterstitialAd(); }, ); _interstitialAd!.show(); _interstitialAd = null; } void _createRewardedAd() { RewardedAd.load( adUnitId: Platform.isAndroid ? 'ca-app-pub-3940256099942544/5224354917' : 'ca-app-pub-3940256099942544/1712485313', request: request, rewardedAdLoadCallback: RewardedAdLoadCallback( onAdLoaded: (RewardedAd ad) { print('$ad loaded.'); _rewardedAd = ad; _numRewardedLoadAttempts = 0; }, onAdFailedToLoad: (LoadAdError error) { print('RewardedAd failed to load: $error'); _rewardedAd = null; _numRewardedLoadAttempts += 1; if (_numRewardedLoadAttempts < maxFailedLoadAttempts) { _createRewardedAd(); } }, )); } void _showRewardedAd() { if (_rewardedAd == null) { print('Warning: attempt to show rewarded before loaded.'); return; } _rewardedAd!.fullScreenContentCallback = FullScreenContentCallback( onAdShowedFullScreenContent: (RewardedAd ad) => print('ad onAdShowedFullScreenContent.'), onAdDismissedFullScreenContent: (RewardedAd ad) { print('$ad onAdDismissedFullScreenContent.'); ad.dispose(); _createRewardedAd(); }, onAdFailedToShowFullScreenContent: (RewardedAd ad, AdError error) { print('$ad onAdFailedToShowFullScreenContent: $error'); ad.dispose(); _createRewardedAd(); }, ); _rewardedAd!.setImmersiveMode(true); _rewardedAd!.show( onUserEarnedReward: (AdWithoutView ad, RewardItem reward) { print('$ad with reward $RewardItem(${reward.amount}, ${reward.type})'); }); _rewardedAd = null; } void _createRewardedInterstitialAd() { RewardedInterstitialAd.load( adUnitId: Platform.isAndroid ? 'ca-app-pub-3940256099942544/5354046379' : 'ca-app-pub-3940256099942544/6978759866', request: request, rewardedInterstitialAdLoadCallback: RewardedInterstitialAdLoadCallback( onAdLoaded: (RewardedInterstitialAd ad) { print('$ad loaded.'); _rewardedInterstitialAd = ad; _numRewardedInterstitialLoadAttempts = 0; }, onAdFailedToLoad: (LoadAdError error) { print('RewardedInterstitialAd failed to load: $error'); _rewardedInterstitialAd = null; _numRewardedInterstitialLoadAttempts += 1; if (_numRewardedInterstitialLoadAttempts < maxFailedLoadAttempts) { _createRewardedInterstitialAd(); } }, )); } void _showRewardedInterstitialAd() { if (_rewardedInterstitialAd == null) { print('Warning: attempt to show rewarded interstitial before loaded.'); return; } _rewardedInterstitialAd!.fullScreenContentCallback = FullScreenContentCallback( onAdShowedFullScreenContent: (RewardedInterstitialAd ad) => print('$ad onAdShowedFullScreenContent.'), onAdDismissedFullScreenContent: (RewardedInterstitialAd ad) { print('$ad onAdDismissedFullScreenContent.'); ad.dispose(); _createRewardedInterstitialAd(); }, onAdFailedToShowFullScreenContent: (RewardedInterstitialAd ad, AdError error) { print('$ad onAdFailedToShowFullScreenContent: $error'); ad.dispose(); _createRewardedInterstitialAd(); }, ); _rewardedInterstitialAd!.setImmersiveMode(true); _rewardedInterstitialAd!.show( onUserEarnedReward: (AdWithoutView ad, RewardItem reward) { print('$ad with reward $RewardItem(${reward.amount}, ${reward.type})'); }); _rewardedInterstitialAd = null; } @override void dispose() { super.dispose(); _interstitialAd?.dispose(); _rewardedAd?.dispose(); _rewardedInterstitialAd?.dispose(); } @override Widget build(BuildContext context) { return MaterialApp( home: Builder(builder: (BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('AdMob Plugin example app'), actions: <Widget>[ PopupMenuButton<String>( onSelected: (String result) { switch (result) { case 'InterstitialAd': _showInterstitialAd(); break; case 'RewardedAd': _showRewardedAd(); break; case 'RewardedInterstitialAd': _showRewardedInterstitialAd(); break; case 'Fluid': Navigator.push( context, MaterialPageRoute(builder: (context) => FluidExample()), ); break; case 'Inline adaptive': Navigator.push( context, MaterialPageRoute( builder: (context) => InlineAdaptiveExample()), ); break; case 'Anchored adaptive': Navigator.push( context, MaterialPageRoute( builder: (context) => AnchoredAdaptiveExample()), ); break; default: throw AssertionError('unexpected button: $result'); } }, itemBuilder: (BuildContext context) => <PopupMenuEntry<String>>[ PopupMenuItem<String>( value: 'InterstitialAd', child: Text('InterstitialAd'), ), PopupMenuItem<String>( value: 'RewardedAd', child: Text('RewardedAd'), ), PopupMenuItem<String>( value: 'RewardedInterstitialAd', child: Text('RewardedInterstitialAd'), ), PopupMenuItem<String>( value: 'Fluid', child: Text('Fluid'), ), PopupMenuItem<String>( value: 'Inline adaptive', child: Text('Inline adaptive'), ), PopupMenuItem<String>( value: 'Anchored adaptive', child: Text('Anchored adaptive'), ), ], ), ], ), body: SafeArea(child: ReusableInlineExample()), ); }), ); } }// Copyright 2021 Google LLC // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // https://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // ignore_for_file: public_member_api_docs import 'dart:io' show Platform; import 'package:flutter/material.dart'; import 'package:google_mobile_ads/google_mobile_ads.dart'; import 'anchored_adaptive_example.dart'; import 'fluid_example.dart'; import 'inline_adaptive_example.dart'; import 'reusable_inline_example.dart'; void main() { WidgetsFlutterBinding.ensureInitialized(); MobileAds.instance.initialize(); runApp(MyApp()); } // You can also test with your own ad unit IDs by registering your device as a // test device. Check the logs for your device's ID value. const String testDevice = 'YOUR_DEVICE_ID'; const int maxFailedLoadAttempts = 3; class MyApp extends StatefulWidget { @override _MyAppState createState() => _MyAppState(); } class _MyAppState extends State<MyApp> { static final AdRequest request = AdRequest( keywords: <String>['foo', 'bar'], contentUrl: 'http://foo.com/bar.html', nonPersonalizedAds: true, ); InterstitialAd? _interstitialAd; int _numInterstitialLoadAttempts = 0; RewardedAd? _rewardedAd; int _numRewardedLoadAttempts = 0; RewardedInterstitialAd? _rewardedInterstitialAd; int _numRewardedInterstitialLoadAttempts = 0; @override void initState() { super.initState(); _createInterstitialAd(); _createRewardedAd(); _createRewardedInterstitialAd(); } void _createInterstitialAd() { InterstitialAd.load( adUnitId: Platform.isAndroid ? 'ca-app-pub-3940256099942544/1033173712' : 'ca-app-pub-3940256099942544/4411468910', request: request, adLoadCallback: InterstitialAdLoadCallback( onAdLoaded: (InterstitialAd ad) { print('$ad loaded'); _interstitialAd = ad; _numInterstitialLoadAttempts = 0; _interstitialAd!.setImmersiveMode(true); }, onAdFailedToLoad: (LoadAdError error) { print('InterstitialAd failed to load: $error.'); _numInterstitialLoadAttempts += 1; _interstitialAd = null; if (_numInterstitialLoadAttempts < maxFailedLoadAttempts) { _createInterstitialAd(); } }, )); } void _showInterstitialAd() { if (_interstitialAd == null) { print('Warning: attempt to show interstitial before loaded.'); return; } _interstitialAd!.fullScreenContentCallback = FullScreenContentCallback( onAdShowedFullScreenContent: (InterstitialAd ad) => print('ad onAdShowedFullScreenContent.'), onAdDismissedFullScreenContent: (InterstitialAd ad) { print('$ad onAdDismissedFullScreenContent.'); ad.dispose(); _createInterstitialAd(); }, onAdFailedToShowFullScreenContent: (InterstitialAd ad, AdError error) { print('$ad onAdFailedToShowFullScreenContent: $error'); ad.dispose(); _createInterstitialAd(); }, ); _interstitialAd!.show(); _interstitialAd = null; } void _createRewardedAd() { RewardedAd.load( adUnitId: Platform.isAndroid ? 'ca-app-pub-3940256099942544/5224354917' : 'ca-app-pub-3940256099942544/1712485313', request: request, rewardedAdLoadCallback: RewardedAdLoadCallback( onAdLoaded: (RewardedAd ad) { print('$ad loaded.'); _rewardedAd = ad; _numRewardedLoadAttempts = 0; }, onAdFailedToLoad: (LoadAdError error) { print('RewardedAd failed to load: $error'); _rewardedAd = null; _numRewardedLoadAttempts += 1; if (_numRewardedLoadAttempts < maxFailedLoadAttempts) { _createRewardedAd(); } }, )); } void _showRewardedAd() { if (_rewardedAd == null) { print('Warning: attempt to show rewarded before loaded.'); return; } _rewardedAd!.fullScreenContentCallback = FullScreenContentCallback( onAdShowedFullScreenContent: (RewardedAd ad) => print('ad onAdShowedFullScreenContent.'), onAdDismissedFullScreenContent: (RewardedAd ad) { print('$ad onAdDismissedFullScreenContent.'); ad.dispose(); _createRewardedAd(); }, onAdFailedToShowFullScreenContent: (RewardedAd ad, AdError error) { print('$ad onAdFailedToShowFullScreenContent: $error'); ad.dispose(); _createRewardedAd(); }, ); _rewardedAd!.setImmersiveMode(true); _rewardedAd!.show( onUserEarnedReward: (AdWithoutView ad, RewardItem reward) { print('$ad with reward $RewardItem(${reward.amount}, ${reward.type})'); }); _rewardedAd = null; } void _createRewardedInterstitialAd() { RewardedInterstitialAd.load( adUnitId: Platform.isAndroid ? 'ca-app-pub-3940256099942544/5354046379' : 'ca-app-pub-3940256099942544/6978759866', request: request, rewardedInterstitialAdLoadCallback: RewardedInterstitialAdLoadCallback( onAdLoaded: (RewardedInterstitialAd ad) { print('$ad loaded.'); _rewardedInterstitialAd = ad; _numRewardedInterstitialLoadAttempts = 0; }, onAdFailedToLoad: (LoadAdError error) { print('RewardedInterstitialAd failed to load: $error'); _rewardedInterstitialAd = null; _numRewardedInterstitialLoadAttempts += 1; if (_numRewardedInterstitialLoadAttempts < maxFailedLoadAttempts) { _createRewardedInterstitialAd(); } }, )); } void _showRewardedInterstitialAd() { if (_rewardedInterstitialAd == null) { print('Warning: attempt to show rewarded interstitial before loaded.'); return; } _rewardedInterstitialAd!.fullScreenContentCallback = FullScreenContentCallback( onAdShowedFullScreenContent: (RewardedInterstitialAd ad) => print('$ad onAdShowedFullScreenContent.'), onAdDismissedFullScreenContent: (RewardedInterstitialAd ad) { print('$ad onAdDismissedFullScreenContent.'); ad.dispose(); _createRewardedInterstitialAd(); }, onAdFailedToShowFullScreenContent: (RewardedInterstitialAd ad, AdError error) { print('$ad onAdFailedToShowFullScreenContent: $error'); ad.dispose(); _createRewardedInterstitialAd(); }, ); _rewardedInterstitialAd!.setImmersiveMode(true); _rewardedInterstitialAd!.show( onUserEarnedReward: (AdWithoutView ad, RewardItem reward) { print('$ad with reward $RewardItem(${reward.amount}, ${reward.type})'); }); _rewardedInterstitialAd = null; } @override void dispose() { super.dispose(); _interstitialAd?.dispose(); _rewardedAd?.dispose(); _rewardedInterstitialAd?.dispose(); } @override Widget build(BuildContext context) { return MaterialApp( home: Builder(builder: (BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('AdMob Plugin example app'), actions: <Widget>[ PopupMenuButton<String>( onSelected: (String result) { switch (result) { case 'InterstitialAd': _showInterstitialAd(); break; case 'RewardedAd': _showRewardedAd(); break; case 'RewardedInterstitialAd': _showRewardedInterstitialAd(); break; case 'Fluid': Navigator.push( context, MaterialPageRoute(builder: (context) => FluidExample()), ); break; case 'Inline adaptive': Navigator.push( context, MaterialPageRoute( builder: (context) => InlineAdaptiveExample()), ); break; case 'Anchored adaptive': Navigator.push( context, MaterialPageRoute( builder: (context) => AnchoredAdaptiveExample()), ); break; default: throw AssertionError('unexpected button: $result'); } }, itemBuilder: (BuildContext context) => <PopupMenuEntry<String>>[ PopupMenuItem<String>( value: 'InterstitialAd', child: Text('InterstitialAd'), ), PopupMenuItem<String>( value: 'RewardedAd', child: Text('RewardedAd'), ), PopupMenuItem<String>( value: 'RewardedInterstitialAd', child: Text('RewardedInterstitialAd'), ), PopupMenuItem<String>( value: 'Fluid', child: Text('Fluid'), ), PopupMenuItem<String>( value: 'Inline adaptive', child: Text('Inline adaptive'), ), PopupMenuItem<String>( value: 'Anchored adaptive', child: Text('Anchored adaptive'), ), ], ), ], ), body: SafeArea(child: ReusableInlineExample()), ); }), ); } } |
7. Dispose:
Dispose all mobile add after the function work to prevent memory leak as following code.
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@override void dispose() { super.dispose(); _interstitialAd?.dispose(); _rewardedAd?.dispose(); _rewardedInterstitialAd?.dispose(); } |
In this article, we have learned about various types of Ads provided by google in flutter application using google_mobile_ads plugin.
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