Flutter使用flutter_local_notifications插件实现手机定时推送本地通知

import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 
// 初始化本地通知插件
final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
    FlutterLocalNotificationsPlugin();
 
// 显示本地通知的方法
Future<void> showNotification() async {
  // 定义通知的资源
  const AndroidNotificationDetails androidNotificationDetails =
      AndroidNotificationDetails('channel id', 'channel name', 'channel description',
          importance: Importance.max, priority: Priority.high);
  const NotificationDetails notificationDetails =
      NotificationDetails(android: androidNotificationDetails);
 
  // 显示通知
  await flutterLocalNotificationsPlugin.show(
, 'New Message', 'You have a new message', notificationDetails);
}
 
// 在initState中配置本地通知
@override
void initState() {
  super.initState();
  // 配置本地通知
  flutterLocalNotificationsPlugin.initialize(InitializationSettings(
    android: AndroidInitializationSettings('app_icon'),
  ), onSelectNotification: (String payload) {
    // 点击通知后的回调
    print('payload: $payload');
  });
}

这段代码展示了如何在Flutter应用中使用flutter_local_notifications插件来初始化和显示本地通知。首先，创建了FlutterLocalNotificationsPlugin的实例，然后定义了Android通知的细节。在initState中，我们调用initialize方法来配置通知。最后，我们实现了一个showNotification方法来显示一个本地通知。