如果应用程序关闭颤动，onSelectNotification Navigator 将不起作用答案

【问题标题】：onSelectNotification Navigator not working if app closed flutter如果应用程序关闭颤动，onSelectNotification Navigator 将不起作用
【发布时间】：2020-08-02 02:52:23
【问题描述】：

应用打开时的onSelectNotification

  Future<void> onSelectNotification(String payload) async {
    Category category = Category();
    category.id = notification.idNew;
    category.email = notification.mainphoto;
    category.since = notification.since;
    category.name = notification.title;
    await Navigator.push(
        context,
        MaterialPageRoute(
            builder: (context) => FourthRoute(
                  category: category,
                )));
  }

当打开并点击通知时，它会转到FourthRoute

但是当它关闭时它只是打开应用程序导航器不工作

ios 和 android 的问题

我想在 onSelectNotification 中使用 SharedPreferences 来保存密钥稍后再检查

但我读到应用程序关闭时飞镖不工作

【问题讨论】：

标签： flutter notifications localnotification

【解决方案1】：

var details = await NotificationService()
    .flutterLocalNotificationsPlugin
    .getNotificationAppLaunchDetails();
if (details.didNotificationLaunchApp) {
    print(details.payload);
}

在应用入口中使用此代码，它可以获得通知点击的有效负载

【讨论】：

【解决方案2】：

Navigator 必须作为子组件包装在 MaterialApp 小部件中，否则，您必须使用 navKey 来引用您的 materialApp。

1. final navKey = new GlobalKey<NavigatorState>();

2. MaterialAPP(title: 'title', ..., navigatorKey: navKey)

3. And then use the key to route to your widget, 
navKey.currentState.push(MaterialPageRoute(builder: (context) => NewRoute()));

【讨论】：

【解决方案3】：

我联系插件支持

Here

Future<void> main() async {
  // needed if you intend to initialize in the `main` function
  WidgetsFlutterBinding.ensureInitialized();

  notificationAppLaunchDetails =
      await flutterLocalNotificationsPlugin.getNotificationAppLaunchDetails();

  var initializationSettingsAndroid = AndroidInitializationSettings('app_icon');
  // Note: permissions aren't requested here just to demonstrate that can be done later using the `requestPermissions()` method
  // of the `IOSFlutterLocalNotificationsPlugin` class
  var initializationSettingsIOS = IOSInitializationSettings(
      requestAlertPermission: false,
      requestBadgePermission: false,
      requestSoundPermission: false,
      onDidReceiveLocalNotification:
          (int id, String title, String body, String payload) async {
        didReceiveLocalNotificationSubject.add(ReceivedNotification(
            id: id, title: title, body: body, payload: payload));
      });
  var initializationSettings = InitializationSettings(
      initializationSettingsAndroid, initializationSettingsIOS);
  await flutterLocalNotificationsPlugin.initialize(initializationSettings,
      onSelectNotification: (String payload) async {
    if (payload != null) {
      debugPrint('notification payload: ' + payload);
    }
    selectNotificationSubject.add(payload);
  });
  runApp(
    MaterialApp(
      home: HomePage(),
    ),
  );
}

【讨论】：

这很困惑，onSelectNotification vs selectNotificationSubject？你能提供更具体的细节吗？