Question

当用户在应用程序处于前台时点击由 onMessage 函数触发的通知时，我尝试使用 Get 导航到不同的屏幕。到目前为止，我还无法做到这一点。

这是我到目前为止所做的：

  void initState(){ 
    super.initState();
    var initializationSettingsAndroid  = AndroidInitializationSettings('@drawable/splash');
    var initializationSettings = InitializationSettings(android:initializationSettingsAndroid);
    flutterLocalNotificationsPlugin.initialize(initializationSettings);
    
    FirebaseMessaging.onMessage.listen((RemoteMessage message) {
      RemoteNotification notification = message.notification;
      AndroidNotification android = message.notification?.android;
      if (notification != null && android != null) {
        flutterLocalNotificationsPlugin.show(
            notification.hashCode,
            notification.title,
            notification.body,
            NotificationDetails(
              android: AndroidNotificationDetails(
                channel.id,
                channel.name,
                channel.description,
                icon: '@drawable/splash',
                playSound: true
              ),
            ));
            Get.to(OrdersScreen());
      }
    });
  }

我收到了通知，但是当我点击时，没有任何反应。我还在日志中收到以下异常。

<块引用>

E/flutter (17567): [错误:flutter/lib/ui/ui_dart_state.cc(199)] 未处理的异常：您正在尝试使用无上下文导航没有 E/flutter (17567)：一个 GetMaterialApp 或 Get.key。 E/flutter (17567)：如果您正在测试您的应用程序，您可以使用： E/flutter (17567): [Get.testMode = true]，或者如果你正在运行 E/flutter (17567) 上的应用程序：物理设备或模拟器，你必须交换你的 [MaterialApp] E/flutter (17567): for a [获取材料应用程序]。 E/颤振（17567）：E/颤振（17567）：#0
GetNavigation.global 包：get/…/src/extension_navigation.dart:1052 E/flutter (17567)：#1 GetNavigation.to 包：get/…/src/extension_navigation.dart:511 E/flutter (17567): #2 _MyAppState.initState。包：flutter_complete_guide/main.dart:146 E/flutter (17567): #3
_rootRunUnary (dart:async/zone.dart:1362:47) E/flutter (17567): #4 _CustomZone.runUnary (dart:async/zone.dart:1265:19) E/flutter (17567): #5 _CustomZone。 runUnaryGuarded (dart:async/zone.dart:1170:7) E/flutter (17567): #6 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11) E/flutter (17567): #7
_DelayedData.perform (dart:async/stream_impl.dart:591:14) E/flutter (17567): #8 _StreamImplEvents.handleNext (dart:async/stream_impl.dart:706:11) E/flutter (17567): #9
_PendingEvents.schedule。 (dart:async/stream_impl.dart:663:7) E/flutter (17567): #10
_rootRun (dart:async/zone.dart:1346:47) E/flutter (17567): #11 _CustomZone.run (dart:async/zone.dart:1258:19) E/flutter (17567): #12 _CustomZone. runGuarded (dart:async/zone.dart:1162:7) E/flutter (17567): #13 _CustomZone.bindCallbackGuarded。 (dart:async/zone.dart:1202:23) E/flutter (17567): #14 _rootRun (dart:async/zone.dart:1354:13) E/flutter (17567): #15
_CustomZone.run (dart:async/zone.dart:1258:19) E/flutter (17567): #16 _CustomZone.runGuarded (dart:async/zone.dart:1162:7) E/flutter (17567): #17 _CustomZone.bindCallbackGuarded。 (dart:async/zone.dart:1202:23) E/flutter (17567): #18
_microtaskLoop (dart:async/schedule_microtask.dart:40:21) E/flutter (17567): #19 _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5) E/flutter (17567): D/ViewRootImpl@874c66fMainActivity：已停止（假）旧=假

Answer 1

要打开通知，您必须使用它

 FirebaseMessaging.onMessageOpenedApp.listen((RemoteMessage message) {
        // print('A new onMessageOpenedApp event was published!');

         Get.to(OrdersScreen());
      });

Answer 2

我可以使用导航键来做到这一点。

创建全局密钥：

final GlobalKey<NavigatorState> navigatorKey = GlobalKey(debugLabel: "Main Navigator");

在 MaterialApp 中初始化它：

MaterialApp( 
        navigatorKey: navigatorKey,

在onMessage函数中使用它：

navigatorKey.currentState.push(
    MaterialPageRoute(builder: (_) => OrdersScreen()));

无法使用 FCM onMessage 导航到不同的屏幕

2 个答案: