Flutter 命名参数和 OneSignal 问题

Question

我正在开发一个基于 Flutter 2.2.3 构建的项目，但我更新了所有依赖项。此外，我还修复了许多错误，这些错误是将 flutter 从 2.2.3 升级到 2.5.2 的结果。现在我面临两个文件的问题。一个问题是 PersistentTabController，它对控制器、navBarHeight、onItemSelected、屏幕、项目等许多行表示 'The named parameter is not found'。好吧，我正在共享代码。左边完全是红色的。我该如何解决？

PersistentTabController(
          controller: controller,
          navBarHeight: MediaQuery.of(context).size.width > 768 ? 90 : 64,
          onItemSelected: (item) {
            int index = controller.index;

            if (index == 0) {
              setState(() {
                appbarTitle = Languages.of(context).homeScreenTitle;
              });
            } else if (index == 1) {
              setState(() {
                appbarTitle = Languages.of(context).appointmentsScreenTitle;
              });
            } else if (index == 2) {
              setState(() {
                appbarTitle = Languages.of(context).favouriteScreenTitle;
              });
            } else if (index == 3) {
              setState(() {
                appbarTitle =
                    Languages.of(context).notificationsScreenTitle;
              });
            } else if (index == 4) {
              setState(() {
                appbarTitle = Languages.of(context).accountScreenTitle;
              });
            }
          },
          screens: _pages,
          items: [
            PersistentBottomNavBarItem(
                icon: Icon(
                  Icons.home_outlined,
                  size: MediaQuery.of(context).size.width > 768 ? 40 : 24,
                ),
                title: Languages.of(context).bottomNavHome,
                activeColor: ColorConstants.primaryColor,
                inactiveColor: ColorConstants.iconColor,
                titleStyle: TextStyle(
                    fontSize:
                        MediaQuery.of(context).size.width > 768 ? 20 : 12)),
            PersistentBottomNavBarItem(
                icon: Icon(
                  Icons.calendar_today_outlined,
                  size: MediaQuery.of(context).size.width > 768 ? 40 : 24,
                ),
                title: Languages.of(context).bottomNavAppointments,
                activeColor: ColorConstants.primaryColor,
                inactiveColor: ColorConstants.iconColor,
                titleStyle: TextStyle(
                    fontSize:
                        MediaQuery.of(context).size.width > 768 ? 20 : 12)),
            PersistentBottomNavBarItem(
                icon: Icon(
                  Icons.favorite_border,
                  size: MediaQuery.of(context).size.width > 768 ? 40 : 24,
                ),
                title: Languages.of(context).bottomNavFavourites,
                activeColor: ColorConstants.primaryColor,
                inactiveColor: ColorConstants.iconColor,
                titleStyle: TextStyle(
                    fontSize:
                        MediaQuery.of(context).size.width > 768 ? 20 : 12)),
            PersistentBottomNavBarItem(
                icon: Icon(
                  Icons.notifications,
                  size: MediaQuery.of(context).size.width > 768 ? 40 : 24,
                ),
                title: Languages.of(context).bottomNavNotifications,
                activeColor: ColorConstants.primaryColor,
                inactiveColor: ColorConstants.iconColor,
                titleStyle: TextStyle(
                    fontSize:
                        MediaQuery.of(context).size.width > 768 ? 20 : 12)),
            PersistentBottomNavBarItem(
                icon: Icon(
                  Icons.person_outline,
                  size: MediaQuery.of(context).size.width > 768 ? 40 : 24,
                ),
                title: Languages.of(context).bottomNavAccount,
                activeColor: ColorConstants.primaryColor,
                inactiveColor: ColorConstants.iconColor,
                titleStyle: TextStyle(
                    fontSize:
                        MediaQuery.of(context).size.width > 768 ? 20 : 12)),
          ],
          confineInSafeArea: true,
          backgroundColor: Colors.white,
          handleAndroidBackButtonPress: true,
          resizeToAvoidBottomInset: true,
          // This needs to be true if you want to move up the screen when keyboard appears.
          stateManagement: false,
          hideNavigationBarWhenKeyboardShows: true,
          // Recommended to set 'resizeToAvoidBottomInset' as true while using this argument.
          decoration: NavBarDecoration(
            border: Border.all(color: Colors.white),
            borderRadius: BorderRadius.circular(1.0),
            colorBehindNavBar: Colors.black,
          ),
          popAllScreensOnTapOfSelectedTab: true,
          popActionScreens: PopActionScreensType.all,
          itemAnimationProperties: ItemAnimationProperties(
            // Navigation Bar's items animation properties.
            duration: Duration(milliseconds: 200),
            curve: Curves.ease,
          ),
          screenTransitionAnimation: ScreenTransitionAnimation(
            // Screen transition animation on change of selected tab.
            animateTabTransition: true,
            curve: Curves.ease,
            duration: Duration(milliseconds: 200),
          ),
          navBarStyle: NavBarStyle.style6,
        ),

同样在另一个文件中，我面临 OneSignal 问题，例如“未为类型 'OneSignal' 定义方法 setInFocusDisplayType 和”未为类型 'OneSignal' 定义方法“setNotificationReceivedHandler” . 这是代码

OneSignal.shared
    .setInFocusDisplayType(OSNotificationDisplayType.notification);

OneSignal.shared
    .setNotificationReceivedHandler((OSNotification notification) {
  this.setState(() {
    outPutString =
        "Received notification: \n${notification.jsonRepresentation().replaceAll("\n", "\n")}";
  });

我该如何解决这些问题？

我在这里分享我的 pubspec.yaml 文件。

    name: test_app
description: A Test Application

publish_to: 'none' 


version: 1.0.0+1

environment:
  sdk: ">=2.7.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter
  flutter_localizations:
    sdk: flutter

  cupertino_icons: ^1.0.0
  shared_preferences: ^2.0.8
  cached_network_image: ^3.1.0
  flutter_rating_bar: ^4.0.0
  url_launcher: ^6.0.12
  country_code_picker: ^2.0.2
  flutter_range_slider: "^1.5.0"
  group_radio_button: ^1.0.1
  carousel_slider: ^4.0.0
  persistent_bottom_nav_bar: ^4.0.2
  intl: ^0.17.0
  provider: ^6.0.1
  flutter_bloc: ^7.3.0
  equatable: ^2.0.3
  image_picker: ^0.8.4+2
  dio: ^4.0.0
  otp_text_field: ^1.0.2
  path: ^1.7.0
  mime: ^1.0.0
  fluttertoast: ^8.0.8
  date_format: ^2.0.4
  html: ^0.15.0
  flutter_calendar_carousel: ^2.0.3
  onesignal_flutter: ^3.2.3
  flutter_paytabs_bridge: ^2.1.1
  http:
  share: ^2.0.2

dev_dependencies:
  flutter_test:
    sdk: flutter

flutter:

  uses-material-design: true

  fonts:
    - family: Quicksand
      fonts:
        - asset: assets/fonts/Quicksand/Quicksand-Bold.ttf
        - asset: assets/fonts/Quicksand/Quicksand-Light.ttf
        - asset: assets/fonts/Quicksand/Quicksand-Medium.ttf
        - asset: assets/fonts/Quicksand/Quicksand-Regular.ttf
        - asset: assets/fonts/Quicksand/Quicksand-SemiBold.ttf
        - asset: assets/fonts/Quicksand/Quicksand-VariableFont_wght.ttf

  assets:
    - assets/images/
    - assets/icons/

Answer 1

问题是您的插件已更新，但您使用的方法已过时。

第一个问题好像您使用的是 PersistentTabController 而不是 PersistentTabView 或 PersistentTabView.custom。 Link documentation PersistentTab

而OneSignal插件有以下方法：

OneSignal.shared.setNotificationWillShowInForegroundHandler((OSNotificationReceivedEvent event) {
  // Will be called whenever a notification is received in foreground
  // Display Notification, pass null param for not displaying the notification
        event.complete(event.notification);                                 
});

OneSignal.shared.setNotificationOpenedHandler((OSNotificationOpenedResult result) {
  // Will be called whenever a notification is opened/button pressed.
});

Link OneSignal documentation

Flutter 命名参数和 OneSignal 问题

Flutter named parameter and OneSignal issue

parameters

named

onesignal

flutter