scheduling Local push notifications

im in a serious trouble im writing a custom code for scheduling the local push notification cuz i can'not do it in flutterflow directly

so the matter is that i have writtem some of codes 2 to 3 codes lil bit similar to each other they donnt have any syntext or logical errors

1 code was for showing notifications instantly

here is the code (it works totally perfectally fine ) :

// Automatic FlutterFlow imports
import '/backend/backend.dart';
import '/flutter_flow/flutter_flow_theme.dart';
import '/flutter_flow/flutter_flow_util.dart';
import '/custom_code/actions/index.dart'; // Imports other custom actions
import '/flutter_flow/custom_functions.dart'; // Imports custom functions
import 'package:flutter/material.dart';
// Begin custom action code
// DO NOT REMOVE OR MODIFY THE CODE ABOVE!

import 'package:rxdart/subjects.dart';

// Import the notification plugin
import 'package:flutter_local_notifications/flutter_local_notifications.dart';

Future<void> titleonly(String title) async {
  FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
      FlutterLocalNotificationsPlugin();
  var initializationSettingsAndroid =
      AndroidInitializationSettings('@mipmap/ic_launcher');
  var initializationSettingsIOS = DarwinInitializationSettings();
  var initializationSettings = InitializationSettings(
      android: initializationSettingsAndroid, iOS: initializationSettingsIOS);
  await flutterLocalNotificationsPlugin.initialize(initializationSettings);

  var androidPlatformChannelSpecifics = AndroidNotificationDetails(
      'Notification_channel_id', 'channel_name',
      channelDescription: '_description',
      importance: Importance.max,
      priority: Priority.high,
      ticker: 'ticker');
  var iOSPlatformChannelSpecifics = DarwinNotificationDetails();
  var platformChannelSpecifics = NotificationDetails(
      android: androidPlatformChannelSpecifics,
      iOS: iOSPlatformChannelSpecifics);

  // Use the provided title parameter instead of static string
  await flutterLocalNotificationsPlugin.show(0, title,
      'Task succesfully added, keep it up Pal', platformChannelSpecifics,
      payload: 'test');
}

but the 2 other codes that i wrote the schedule the notifications ( the problem) when i rum them into my phone it didnt show notifications at all

here is that code (can anyon help me fixing that i tried almost all other solutions but all in vain i think if anyone of u able to help meh):

// Automatic FlutterFlow imports
import '/flutter_flow/flutter_flow_theme.dart';
import '/flutter_flow/flutter_flow_util.dart';
import '/custom_code/actions/index.dart'; // Imports other custom actions
import '/flutter_flow/custom_functions.dart'; // Imports custom functions
import 'package:flutter/material.dart';
// Begin custom action code
// DO NOT REMOVE OR MODIFY THE CODE ABOVE!

// Import necessary packages
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:timezone/data/latest.dart' as tz;
import 'package:timezone/timezone.dart' as tz;

Future<void> scheduleNotification(
    String title, String body, DateTime scheduledDate) async {
  // Initialize the notification plugin
  FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
      FlutterLocalNotificationsPlugin();

  // Initialize Android settings
  var initializationSettingsAndroid =
      AndroidInitializationSettings('@mipmap/ic_launcher');

  // Initialize iOS settings
  var initializationSettingsIOS = DarwinInitializationSettings();

  // Initialize settings for both platforms
  var initializationSettings = InitializationSettings(
      android: initializationSettingsAndroid, iOS: initializationSettingsIOS);

  // Initialize the plugin with the settings
  await flutterLocalNotificationsPlugin.initialize(initializationSettings);

  // Initialize time zone data
  tz.initializeTimeZones();

  // Configure the Android notification details
  var androidPlatformChannelSpecifics = AndroidNotificationDetails(
      'To_Do_channel_', 'Scheduled_Notification',
      channelDescription:
          'This channel only shows the notifications related to Scheduld notification_',
      importance: Importance.max,
      priority: Priority.high,
      ticker: 'ticker');

  // Configure the iOS notification details
  var iOSPlatformChannelSpecifics = DarwinNotificationDetails();

  // Combine the platform-specific settings
  var platformChannelSpecifics = NotificationDetails(
      android: androidPlatformChannelSpecifics,
      iOS: iOSPlatformChannelSpecifics);

  // Schedule the notification
  await flutterLocalNotificationsPlugin.zonedSchedule(0, title, body,
      tz.TZDateTime.from(scheduledDate, tz.local), platformChannelSpecifics,
      androidAllowWhileIdle: true,
      uiLocalNotificationDateInterpretation:
          UILocalNotificationDateInterpretation.absoluteTime,
      matchDateTimeComponents:
          DateTimeComponents.time // Adjust as necessary for your use case
      );
}