Flutter 本地通知不适用于 iOS

Question

你好颤振新手在这里！我正在使用颤振本地通知并将默认代码添加到我的应用程序中。它适用于Android，但不适用于iOS。知道为什么吗？

我尝试使用适用于 iPhone 8 和 iPhone 11 的 iOS 模拟器。它适用于我的 Pixel 3 API 29 安卓模拟器。

我还为此应用启用了 iOS 中的通知（设置>此应用>通知）并授予权限。

对于 Android，我在 AndroidManifest.xml 中添加了权限请求。

import 'package:flutter/material.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';


class AppNotification extends StatefulWidget {
  static const String id = 'app_notification';

  @override
  _AppNotificationState createState() => _AppNotificationState();
}

class _AppNotificationState extends State<AppNotification> {
  FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin;

  @override
  void initState() {
    super.initState();
    flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
    var android = AndroidInitializationSettings('app_icon');
    var iOS = IOSInitializationSettings();
    var initSettings = InitializationSettings(android, iOS);

    flutterLocalNotificationsPlugin.initialize(initSettings,
        onSelectNotification: onSelectNotification);
  }

  Future onSelectNotification(String payload) async {
    debugPrint("payload : $payload");
    showDialog(
      context: context,
      builder: (_) {
        return AlertDialog(
          title: Text("PayLoad"),
          content: Text("Payload : $payload"),
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            FlatButton(
              child: Text('Notification'),
              onPressed: _showNotificationWithDefaultSound,
            ),
            FlatButton(
              onPressed: () {
                Navigator.pop(context);
              },
              child: Text('back'),
            )
          ],
        ),
      ),
    );
  }

  // TODO iOS doesn't work

  Future _showNotificationWithDefaultSound() async {
    var androidPlatformChannelSpecifics = new AndroidNotificationDetails(
        'your channel id', 'your channel name', 'your channel description',
        importance: Importance.Max, priority: Priority.High);
    var iOSPlatformChannelSpecifics = new IOSNotificationDetails();
    var platformChannelSpecifics = new NotificationDetails(
        androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);
    await flutterLocalNotificationsPlugin.show(
      0,
      'New Post',
      'How to Show Notification in Flutter',
      platformChannelSpecifics,
      payload: 'Default_Sound',
    );
  }

Answer 1

我在 didFinishLaunchingWithOptions 方法内的“AppDelegate.swift”中添加了这一行，它解决了我的问题：

if #available(iOS 10.0, *) {
    UNUserNotificationCenter.current().delegate = self as? UNUserNotificationCenterDelegate
}

文档链接： https://github.com/MaikuB/flutter_local_notifications/tree/master/flutter_local_notifications#%EF%B8%8F-ios-setup

// 我在插件的文档中找到了这个，希望 它解决了你的问题！