面试题：Flutter实现平台特定通知功能之基础

Question

在Flutter中，简述如何分别为iOS和Android平台配置基本的通知权限？请举例说明调用相关权限配置的代码片段。

Answer 1

iOS平台配置通知权限

1. 导入相关库：在pubspec.yaml文件中添加flutter_local_notifications库，用于管理本地通知。

dependencies:
  flutter_local_notifications: ^X.XX.X

2. 配置权限代码示例：

import 'package:flutter_local_notifications/flutter_local_notifications.dart';

final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();

Future<void> requestIOSPermissions() async {
  final DarwinInitializationSettings initializationSettingsIOS =
      DarwinInitializationSettings(
    requestAlertPermission: true,
    requestBadgePermission: true,
    requestSoundPermission: true,
  );
  final InitializationSettings initializationSettings = InitializationSettings(
    iOS: initializationSettingsIOS,
  );
  await flutterLocalNotificationsPlugin.initialize(initializationSettings);
}

Android平台配置通知权限

1. 导入相关库：同样在pubspec.yaml文件中添加flutter_local_notifications库。
2. 配置权限代码示例：

import 'package:flutter_local_notifications/flutter_local_notifications.dart';

final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();

Future<void> requestAndroidPermissions() async {
  final AndroidInitializationSettings initializationSettingsAndroid =
      AndroidInitializationSettings('app_icon');
  final InitializationSettings initializationSettings = InitializationSettings(
    android: initializationSettingsAndroid,
  );
  await flutterLocalNotificationsPlugin.initialize(initializationSettings);
  // 对于Android 8.0及以上，还需设置通知渠道
  const AndroidNotificationChannel channel = AndroidNotificationChannel(
    'high_importance_channel', // id
    'High Importance Notifications', // title
    description: 'This channel is used for important notifications.', // description
    importance: Importance.high,
  );
  final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
  await flutterLocalNotificationsPlugin
    .resolvePlatformSpecificImplementation<
      AndroidFlutterLocalNotificationsPlugin>()
    ?.createNotificationChannel(channel);
}