如何在flutter中捕获致命异常

void main() {
  try {
    runApp(MyApp());
  } catch (e, stackTrace) {
    // 处理异常
    print('Caught error: $e');
    print('Stack trace: $stackTrace');
  }
}

void main() {
  try {
    runApp(MyApp());
  } catch (e, stackTrace) {
    runApp(ErrorApp(e, stackTrace));
  }
}

class ErrorApp extends StatelessWidget {
  final dynamic error;
  final StackTrace stackTrace;

  ErrorApp(this.error, this.stackTrace);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(
          child: Text('Caught error: $error\nStack trace: $stackTrace'),
        ),
      ),
    );
  }
}

void main() {
  FlutterError.onError = Crashlytics.instance.recordFlutterError;

  runZonedGuarded<Future<void>>(() async {
    runApp(MyApp());
  }, (error, stackTrace) {
    // 处理异常
    print('Caught error: $error');
    print('Stack trace: $stackTrace');
    Crashlytics.instance.recordError(error, stackTrace);
  });
}