Flutter -无法设置通知大图标

dependencies:
  flutter_local_notifications: ^8.2.0

import 'package:flutter_local_notifications/flutter_local_notifications.dart';

FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();

const AndroidNotificationDetails androidPlatformChannelSpecifics = AndroidNotificationDetails(
    'your channel id', 'your channel name', 'your channel description',
    importance: Importance.max,
    priority: Priority.high,
    largeIcon: DrawableResourceAndroidBitmap('your_custom_large_icon'),
);

const NotificationDetails platformChannelSpecifics = NotificationDetails(android: androidPlatformChannelSpecifics);
await flutterLocalNotificationsPlugin.show(
    0,
    'Notification Title',
    'Notification Body',
    platformChannelSpecifics,
);