firebase - 如何在 Flutter 中初始化 firebase crashlytics？

Question

我已经通过 pubspec.yaml 和 Gradle 文件中的依赖为我的 Flutter 项目实现了 firebase crashlytics，并且能够在 firebase 控制台中看到 crashlytics 仪表板。
现在我的问题是如何在 main.dart 文件中初始化 crashlytics 以及如何编写日志并捕获特定页面(例如主页)的错误或崩溃。
我从这个链接试过:https://pub.dev/packages/firebase_crashlytics/example
main.dart

final _kShouldTestAsyncErrorOnInit = false;
// Toggle this for testing Crashlytics in your app locally.
final _kTestingCrashlytics = true;

main() {
  WidgetsFlutterBinding.ensureInitialized();
  runZonedGuarded(() {
    runApp(MyApp());
  }, (error, stackTrace) {
    print('runZonedGuarded: Caught error in my root zone.');
    FirebaseCrashlytics.instance.recordError(error, stackTrace);
  });
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "My App",
      debugShowCheckedModeBanner: false,
      home: MainPage(),
      theme: ThemeData(
          accentColor: Colors.blue
      ),
    );
  }
}

class MainPage extends StatefulWidget {
  @override
  _MainPageState createState() => _MainPageState();
}

class _MainPageState extends State<MainPage> {

  Future<void> _initializeFlutterFireFuture;

  Future<void> _testAsyncErrorOnInit() async {
    Future<void>.delayed(const Duration(seconds: 2), () {
      final List<int> list = <int>[];
      print(list[100]);
    });
  }

  // Define an async function to initialize FlutterFire
  Future<void> _initializeFlutterFire() async {
    // Wait for Firebase to initialize
    await Firebase.initializeApp();

    if (_kTestingCrashlytics) {
      // Force enable crashlytics collection enabled if we're testing it.
      await FirebaseCrashlytics.instance.setCrashlyticsCollectionEnabled(true);
    } else {
      // Else only enable it in non-debug builds.
      // You could additionally extend this to allow users to opt-in.
      await FirebaseCrashlytics.instance
          .setCrashlyticsCollectionEnabled(!kDebugMode);
    }

    // Pass all uncaught errors to Crashlytics.
    Function originalOnError = FlutterError.onError;
    FlutterError.onError = (FlutterErrorDetails errorDetails) async {
      await FirebaseCrashlytics.instance.recordFlutterError(errorDetails);
      // Forward to original handler.
      originalOnError(errorDetails);
    };

    if (_kShouldTestAsyncErrorOnInit) {
      await _testAsyncErrorOnInit();
    }
  }

  @override
  void initState() {
    super.initState();
    _initializeFlutterFireFuture = _initializeFlutterFire();
    Firebase.initializeApp().whenComplete(() {
      print("completed");
      setState(() {});
    });
    checkLoginStatus();
  }
}

在flutter中初始化crashlytics是正确的还是其他方式？
如果我必须检查 HomePage 中是否有任何崩溃，那么如何从主页获取该崩溃并将其显示在 firbase crashlytics 中？

Answer 1

是的，您对 crashlytics 的配置没问题。
如果您使用 Firebase 身份验证，您可以添加以下代码以便能够跟踪特定于用户的崩溃:

FirebaseAuth.instance.onAuthStateChanged.listen((firebaseUser) {
  if (firebaseUser != null && firebaseUser?.email != null) {
    Crashlytics.instance.setUserEmail(firebaseUser.email);
  }
  if (firebaseUser != null && firebaseUser?.uid != null) {
    Crashlytics.instance.setUserIdentifier(firebaseUser.uid);
  }
  if (firebaseUser != null && firebaseUser?.displayName != null) {
    Crashlytics.instance.setUserName(firebaseUser.displayName);
  }
});

另外，不要忘记跟踪 中的特定异常捕获 的 试捕像这样阻止:

try {
  //some code here...
} catch (e, s) {
  Crashlytics.instance.recordError(e, s, context: "an error occured: uid:$uid");
}