Disable crashlytics and analytics by default

README.md

@@ -50,6 +50,40 @@ Overall all this puzzle tries to engage you in a different way to improve your m
 **2) Picture Puzzle** : Each shape represents a number. You need find number related to each shape and solve the last equation.<br />
 **3) Number Pyramid** : In a number pyramid, the numbers on the lower layers determine the numbers above them. Sum of two consecutive cell would be placed on top cell.<br />
 
+## Crashlytics and Analytics
+To enable Firebase Crashlytics and Analytics, do the following:
+
+1. Create a new project in
+   [console.firebase.google.com](https://console.firebase.google.com/).
+   Call the Firebase project whatever you like; just **remember the name**.
+   You don't need to enable Analytics in the project if you don't want to.
+2. [Install `firebase-tools`](https://firebase.google.com/docs/cli?authuser=0#setup_update_cli)
+   on your machine.
+3. [Install `flutterfire` CLI](https://firebase.flutter.dev/docs/cli#installation)
+   on your machine.
+4. In the root of this project (the directory containing `pubspec.yaml`),
+   run the following:
+    - `flutterfire configure`
+        - This command asks you for the name of the Firebase project
+          that you created earlier, and the list of target platforms you support.
+          As of April 2022, only `android` and `ios` are fully
+          supported by Crashlytics.
+        - The command rewrites `lib/firebase_options.dart` with
+          the correct code.
+5. Go to `lib/main.dart` and uncomment the lines that relate to Crashlytics and Analytics.
+
+You should now be able to see crashes, errors, and
+severe log messages in
+[console.firebase.google.com](https://console.firebase.google.com/).
+To test, add a button to your project, and throw whatever
+exception you like when the player presses it.
+
+```dart
+TextButton(
+  onPressed: () => throw StateError('whoa!'),
+  child: Text('Test Crashlytics'),
+)
+```
 
 ## Built With
 This application built [Flutter](https://flutter.dev/). Flutter is cross-platform open source mobile framework built by Google. Flutter use Dart as a primary language which is highly scalable and easy codebase.

lib/main.dart

@@ -1,17 +1,19 @@
 import 'package:firebase_analytics/firebase_analytics.dart';
-import 'package:firebase_core/firebase_core.dart';
 import 'package:firebase_crashlytics/firebase_crashlytics.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_animate/flutter_animate.dart';
 import 'package:get_it/get_it.dart';
-import 'package:mathgame/firebase_options.dart';
 import 'package:mathgame/src/ui/app/app.dart';
 import 'package:mathgame/src/ui/app/theme_provider.dart';
 import 'package:mathgame/src/ui/dashboard/dashboard_provider.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
+// Uncomment the following lines when enabling Firebase Crashlytics
+// import 'package:firebase_core/firebase_core.dart';
+// import 'package:mathgame/firebase_options.dart';
+
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
@@ -19,23 +21,36 @@ Future<void> main() async {
     Animate.restartOnHotReload = true;
   }
 
-  await Firebase.initializeApp(
-    options: DefaultFirebaseOptions.currentPlatform,
-  );
+  FirebaseAnalytics? firebaseAnalytics;
+  FirebaseCrashlytics? crashlytics;
 
-  FirebaseAnalytics firebaseAnalytics = FirebaseAnalytics.instance;
+  // To enable Firebase Crashlytics and Analytics, uncomment the following lines and
+  // the import statements at the top of this file.
+  // See the 'Crashlytics and Analytics' section of the main README.md file for details.
+
+  // try {
+  //   await Firebase.initializeApp(
+  //     options: DefaultFirebaseOptions.currentPlatform,
+  //   );
+  //   firebaseAnalytics = FirebaseAnalytics.instance;
+  //   crashlytics = FirebaseCrashlytics.instance;
+  // } catch (e) {
+  //   debugPrint("Firebase couldn't be initialized: $e");
+  // }
 
   if (kDebugMode) {
-    await FirebaseCrashlytics.instance.setCrashlyticsCollectionEnabled(false);
-    await firebaseAnalytics.setAnalyticsCollectionEnabled(false);
+    await crashlytics?.setCrashlyticsCollectionEnabled(false);
+    await firebaseAnalytics?.setAnalyticsCollectionEnabled(false);
   }
 
-  FlutterError.onError = FirebaseCrashlytics.instance.recordFlutterError;
+  if (crashlytics != null) {
+    FlutterError.onError = FirebaseCrashlytics.instance.recordFlutterError;
 
-  PlatformDispatcher.instance.onError = (error, stack) {
-    FirebaseCrashlytics.instance.recordError(error, stack, fatal: true);
-    return true;
-  };
+    PlatformDispatcher.instance.onError = (error, stack) {
+      FirebaseCrashlytics.instance.recordError(error, stack, fatal: true);
+      return true;
+    };
+  }
 
   final sharedPreferences = await SharedPreferences.getInstance();
 

lib/src/ui/app/app.dart

@@ -2,14 +2,14 @@ import 'package:firebase_analytics/firebase_analytics.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:mathgame/src/core/app_constant.dart';
-import 'package:mathgame/src/core/app_theme.dart';
 import 'package:mathgame/src/core/app_routes.dart';
+import 'package:mathgame/src/core/app_theme.dart';
 import 'package:mathgame/src/ui/app/theme_provider.dart';
 import 'package:provider/provider.dart';
 
 class MyApp extends StatelessWidget {
   final String fontFamily = "Montserrat";
-  final FirebaseAnalytics firebaseAnalytics;
+  final FirebaseAnalytics? firebaseAnalytics;
 
   const MyApp({
     required this.firebaseAnalytics,
@@ -35,7 +35,8 @@ class MyApp extends StatelessWidget {
         routes: appRoutes,
         // home: DashboardView(),
         navigatorObservers: [
-          FirebaseAnalyticsObserver(analytics: firebaseAnalytics)
+          if (firebaseAnalytics != null)
+            FirebaseAnalyticsObserver(analytics: firebaseAnalytics!)
         ],
       );
     });