Flutter Notification Örnek Tam Kod

flutter pub add flutter_local_notifications permission_handler

<manifest xmlns:android="http://schemas.android.com/apk/res/android">
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
    <uses-permission android:name="android.permission.VIBRATE"/>
    <application
        android:label="notification"
        android:name="${applicationName}"
        android:icon="@mipmap/ic_launcher">
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import 'dart:async';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:flutter/material.dart';

class NotificationService {
  final FlutterLocalNotificationsPlugin notificationsPlugin =
      FlutterLocalNotificationsPlugin();

  Future<void> initNotification() async {
    AndroidInitializationSettings initializationSettingsAndroid =
        const AndroidInitializationSettings("@mipmap/ic_launcher");

    var initializationSettingsIOS = DarwinInitializationSettings(
        requestAlertPermission: true,
        requestBadgePermission: true,
        requestSoundPermission: true,
        onDidReceiveLocalNotification:
            (int id, String? title, String? body, String? payload) async {});

    var initializationSettings = InitializationSettings(
        android: initializationSettingsAndroid, iOS: initializationSettingsIOS);
    await notificationsPlugin.initialize(initializationSettings,
        onDidReceiveNotificationResponse:
            (NotificationResponse notificationResponse) async {});
  }

  notificationDetails() {
    return const NotificationDetails(
        android: AndroidNotificationDetails('channelId', 'channelName',
            importance: Importance.max),
        iOS: DarwinNotificationDetails());
  }

  Future showNotification(
      {int id = 0, String? title, String? body, String? payLoad}) async {
    return notificationsPlugin.show(
        id, title, body, await notificationDetails());
  }
}


void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Permission.notification.request().then((permissionStatus) {
    if (permissionStatus.isGranted) {
      NotificationService().initNotification();
    }
    runApp(const MyApp());
  });
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Notifications',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key}) : super(key: key);

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  Timer? _timer;

  @override
  void initState() {
    super.initState();
    // Get current time
    DateTime now = DateTime.now();

    // If it's 12:00 right now, show the notification
    if (now.hour == 12 && now.minute == 0) {
      NotificationService().showNotification(
        id: 1,
        title: '12:00 Notification',
        body: 'It\'s currently 12:00, showing notification.',
      );
    }

    // Set up timer to check every second
    _timer = Timer.periodic(Duration(seconds: 1), (timer) {
      // If it's 16:57 right now, show the notification
      if (DateTime.now().hour == 16 && DateTime.now().minute == 57) {
        NotificationService().showNotification(
          id: 2,
          title: '16:57 Notification',
          body: 'It\'s currently 16:57, showing notification.',
        );
        // Cancel timer because once the notification is shown, we don't need to continue
        _timer?.cancel();
      }
    });
  }

  @override
  void dispose() {
    _timer?.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.black,
        centerTitle: true,
        title: Text("Flutter Notification Example",
            style: TextStyle(color: Colors.white)),
      ),
      body: SafeArea(
        child: Center(
          child: ElevatedButton(
            child: const Text('Show Notification'),
            onPressed: () {
              NotificationService().showNotification(
                  id: 3,
                  title: 'Test Notification',
                  body: 'This is a test notification.');
            },
          ),
        ),
      ),
    );
  }
}