如何在flutter中默认显示锁屏本地通知

dependencies:
  flutter_local_notifications: ^5.0.0

import 'package:flutter_local_notifications/flutter_local_notifications.dart';

FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
    FlutterLocalNotificationsPlugin();

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  var initializationSettingsAndroid =
      AndroidInitializationSettings('@mipmap/ic_launcher');
  var initializationSettingsIOS = IOSInitializationSettings();
  var initializationSettings = InitializationSettings(
      android: initializationSettingsAndroid, iOS: initializationSettingsIOS);
  await flutterLocalNotificationsPlugin.initialize(initializationSettings);
  runApp(MyApp());
}

Future<void> showLockScreenNotification() async {
  var androidPlatformChannelSpecifics = AndroidNotificationDetails(
    'channel_id',
    'channel_name',
    'channel_description',
    importance: Importance.max,
    priority: Priority.high,
    ticker: 'ticker',
    styleInformation: DefaultStyleInformation(true, true),
  );
  var iOSPlatformChannelSpecifics = IOSNotificationDetails();
  var platformChannelSpecifics = NotificationDetails(
    android: androidPlatformChannelSpecifics,
    iOS: iOSPlatformChannelSpecifics,
  );
  await flutterLocalNotificationsPlugin.show(
    0,
    'Notification Title',
    'Notification Body',
    platformChannelSpecifics,
    payload: 'Default_Sound',
  );
}

showLockScreenNotification();