Firebase Crashlytics to a Flutter Application

By the end of this tutorial, you’ll know how to implement Firebase Crashlytics to a Flutter Application. let’s dive into the details.

Introduction

Firebase Crashlytics is a powerful tool that helps developers track, prioritize, and fix stability issues in their mobile applications. In this blog post, we will explore how to integrate Firebase Crashlytics into a Flutter application, allowing you to receive real-time crash reports and gain insights into the health of your app.

Prerequisites:

• Flutter is installed on your machine.
• Firebase project created on the Firebase Console.

Traditional Way – Firebase Crashlytics to a Flutter Application:

Step 1: Create a Flutter Project

If you haven’t already created a Flutter project, run the following commands in your terminal:

flutter create my_flutter_crashlytics_app
cd my_flutter_crashlytics_app

Step 2: Add Firebase to your Flutter project

Go to the Firebase Console (https://console.firebase.google.com/), create a new project, and follow the setup instructions to add Firebase to your project.

Once you have your google-services.json file, place it in the android/app directory for Android and GoogleService-Info.plist in the ios/Runner directory for iOS.

Step 3: Add Dependencies

In your pubspec.yaml file, add the Firebase and Crashlytics dependencies:

dependencies:
  flutter:
    sdk: flutter
  firebase_core: ^latest_version
  firebase_crashlytics: ^latest_version

Run flutter pub get to fetch the dependencies.

Step 4: Initialize Firebase in your Flutter app

In your main.dart file, initialize Firebase:

import 'package:firebase_core/firebase_core.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MyApp());
}

Step 5: Configure Firebase Crashlytics

Add the following code to your main.dart to enable Crashlytics:

import 'package:firebase_crashlytics/firebase_crashlytics.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  
  // Enable Crashlytics in release mode
  if (!kReleaseMode) {
    await FirebaseCrashlytics.instance.setCrashlyticsCollectionEnabled(false);
  }

  FlutterError.onError = FirebaseCrashlytics.instance.recordFlutterError;

  runApp(MyApp());
}

Step 6: Test Crash Reporting

Run the following command to open the Firebase Console and navigate to the Crashlytics section:

firebase open crashlytics

This command opens the Firebase Console directly to the Crashlytics section, allowing you to view crash reports.

Step 7: View Crash Reports

After triggering a crash, open the Firebase Console, navigate to the Crashlytics section, and you should see the crash report for your test crash.

Through CLI Tools: Firebase Crashlytics to a Flutter Application

Certainly! Firebase CLI tools can streamline the process of setting up Firebase and integrating Crashlytics into your Flutter app. Below are the steps using Firebase CLI:

Step 1: Install Firebase CLI

Ensure you have the Firebase CLI installed. If not, install it using:

npm install -g firebase-tools

Open a terminal and log into Firebase using your Google account:

firebase login

Install the FlutterFire CLI globally

dart pub global activate flutterfire_cli

Step 2: Create a Firebase Project

Run the following command to create a new Firebase project:

firebase init

Follow the prompts to set up Firebase for your project, including selecting the Firebase services you want to use.

Navigate to your Flutter project directory if you have any:[ Previous Project ]

cd path/to/your/flutter/project

Run the FlutterFire CLI to start the app configuration workflow:

flutterfire configure

The CLI will guide you through the configuration process and generate necessary files for Firebase services.

Step 3: Add Firebase to your Flutter project

Navigate to your Flutter project’s root directory and run:

flutter create .

This command initializes Firebase for both Android and iOS platforms.

Step 4: Add Firebase Crashlytics dependency

Run the following commands to add Firebase Crashlytics dependency to your Flutter project:

flutter pub add firebase_core flutter pub add firebase_crashlytics

Step 5: Configure Firebase and Crashlytics using Firebase CLI

Run the following command to automatically configure your Flutter app with Firebase and Crashlytics:

firebase use --add

This command associates your Flutter project with a Firebase project, creates or updates the required configuration files, and enables Crashlytics.

Step 6: Initialize Firebase in your Flutter app

Ensure your main.dart contains the Firebase initialization code:

import 'package:firebase_core/firebase_core.dart';
import 'firebase_options.dart'; // Replace with the actual filename

void main() async {
  WidgetsFlutterBinding.ensureInitialized();

  await Firebase.initializeApp(
    options: DefaultFirebaseOptions.currentPlatform,
  );

  runApp(MyApp());
}

Step 7: Enable Crashlytics in Release mode

Run the following command to enable Crashlytics in Release mode:

flutter build apk --release

This command ensures that Crashlytics is enabled for release builds.

Step 8: Test Crash Reporting

Test crash reporting by intentionally causing a crash in your app.

Step 9: View Crash Reports

Run the following command to open the Firebase Console and navigate to the Crashlytics section:

firebase open crashlytics

This command opens the Firebase Console directly to the Crashlytics section, allowing you to view crash reports.

Also, Read Related Tutorials

• A RenderFlex overflowed by 36 pixels on the right using row
• How to hide debug banner from the application main page in Flutter?

Conclusion

Using Firebase CLI tools simplifies the process of setting up Firebase and integrating Crashlytics into your Flutter app. By following these CLI-based steps, you can efficiently configure and manage Firebase services, ensuring a smooth development and monitoring experience.

Resource

Add Firebase to your Flutter app