How to Earn Money Using Flutter and Google AdMob

Flutter, Google’s open-source UI software development kit, is a popular choice for building natively compiled applications for mobile, web, and desktop from a single codebase. By integrating Google AdMob, you can monetize these applications effectively. Here’s a guide to get you started.

1. Setting Up Your Flutter Environment

Before you can start developing and monetizing apps, ensure you have the necessary tools installed.

1. Install Flutter: Follow the official Flutter installation guide to set up Flutter on your development machine.
2. Set Up an IDE: Use an IDE like Android Studio, IntelliJ IDEA, or Visual Studio Code for a better development experience. Install the Flutter and Dart plugins for these IDEs.

2. Creating Your Flutter App

1. Create a New Flutter Project: Open your terminal and run:

   flutter create my_monetized_app
   cd my_monetized_app

1. Build Your App: Develop your app’s UI and functionality using Flutter’s rich set of pre-designed widgets. Follow Flutter’s documentation and tutorials to guide you through building a robust app.

3. Setting Up AdMob

1. Sign Up for AdMob: Create an AdMob account at admob.google.com.

2. Create an Ad Unit:

   • Once logged into AdMob, create a new app and generate an ad unit ID.
   • You'll use this ad unit ID to configure ads in your Flutter app.

4. Integrating AdMob with Flutter

1. Add Dependencies: Open your pubspec.yaml file and add the google_mobile_ads dependency:

   dependencies:
     flutter:
       sdk: flutter
     google_mobile_ads: ^1.0.0

1. Initialize AdMob: In your main.dart file, initialize AdMob:

   import 'package:flutter/material.dart';
   import 'package:google_mobile_ads/google_mobile_ads.dart';

   void main() {
     WidgetsFlutterBinding.ensureInitialized();
     MobileAds.instance.initialize();
     runApp(MyApp());
   }

   class MyApp extends StatelessWidget {
     @override
     Widget build(BuildContext context) {
       return MaterialApp(
         home: Scaffold(
           appBar: AppBar(
             title: Text('AdMob in Flutter'),
           ),
           body: MyHomePage(),
         ),
       );
     }
   }

1. Load and Display Ads:

   • Banner Ads:

    class MyHomePage extends StatefulWidget {
      @override
      _MyHomePageState createState() => _MyHomePageState();
    }
   
    class _MyHomePageState extends State<MyHomePage> {
      BannerAd? _bannerAd;
   
      @override
      void initState() {
        super.initState();
        _bannerAd = BannerAd(
          adUnitId: '<YOUR-AD-UNIT-ID>',
          size: AdSize.banner,
          request: AdRequest(),
          listener: BannerAdListener(),
        )..load();
      }
   
      @override
      void dispose() {
        _bannerAd?.dispose();
        super.dispose();
      }
   
      @override
      Widget build(BuildContext context) {
        return Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            if (_bannerAd != null)
              Container(
                alignment: Alignment.center,
                child: AdWidget(ad: _bannerAd!),
                width: _bannerAd!.size.width.toDouble(),
                height: _bannerAd!.size.height.toDouble(),
              ),
          ],
        );
      }
    }
   

• Interstitial Ads:
  

   InterstitialAd? _interstitialAd;
  
   void _createInterstitialAd() {
     InterstitialAd.load(
         adUnitId: '<YOUR-AD-UNIT-ID>',
         request: AdRequest(),
         adLoadCallback: InterstitialAdLoadCallback(
           onAdLoaded: (ad) {
             _interstitialAd = ad;
           },
           onAdFailedToLoad: (err) {
             print('Failed to load an interstitial ad: ${err.message}');
           },
         ));
   }
  
   void _showInterstitialAd() {
     if (_interstitialAd != null) {
       _interstitialAd!.show();
     }
   }
  
   @override
   void dispose() {
     _interstitialAd?.dispose();
     super.dispose();
   }
  

5. Testing Your Ads

Before releasing your app, test your ads using AdMob’s test ad units to ensure they display correctly and don’t affect the user experience negatively.

6. Publishing Your App

Once you’ve thoroughly tested your app and integrated ads, you can publish it to the Google Play Store and/or Apple App Store. Follow the respective guidelines for publishing on Google Play and publishing on the App Store.

Conclusion

Monetizing your Flutter app using Google AdMob can be a lucrative way to generate income from your hard work. By following the steps outlined above, you can integrate ads seamlessly into your app, ensuring a steady revenue stream while providing value to your users. Always adhere to best practices and Google’s policies to maintain a positive user experience and maximize your earnings.