Question Duplicate Notifications

Hi there! I've been trying to solve this issue for about 6 hours and I can't seem to fix it.I wanna have a notification that repeats every 3 days, but I am facing a weird issue.I open my application, the notification displays properly, but if I close the application and remove it from recent apps and then open it again, now it sends 2 of the same notification at a time.

I am using repeatInterval to repeat this notification every 3 days, but I don't know how I can prevent it from not starting again if the repeated notification was triggered already in a previous session, or detect that it has been triggered and not try sending another repeated notification again.

The notification that I'm having problems with is the PlayReminder.

Here's the code :

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using Unity.Notifications.Android;
5. using System;
6.  
7. public class NotificationManager : MonoBehaviour
8. {
9.     #region Notification Channels
10.  
11.     private AndroidNotificationChannel default_channel;
12.     private AndroidNotificationChannel reminder_channel;
13.  
14.     #endregion
15.  
16.  
17.     #region Daily Rewards Variables
18.  
19.     private NotificationStatus DailyReward_notificationStatus;
20.     private int DailyReward_ID;
21.     private AndroidNotification DailyReward_Reminder;
22.  
23.     #endregion
24.  
25.     #region Reminder to Play
26.  
27.     private NotificationStatus PlayReminder_notificationStatus;
28.     private int PlayReminder_ID;
29.     private AndroidNotification PlayReminder;
30.  
31.     #endregion
32.  
33.     // Start is called before the first frame update
34.  
35.     void Start()
36.     {
37.         #region Channels
38.  
39.         default_channel = new AndroidNotificationChannel() // Used for push notifications, events, discounts etc
40.         {
41.             Id = "default_channel_id",
42.             Name = "General Channel",
43.             Importance = Importance.Default,
44.             EnableVibration = true,
45.             EnableLights = true,
46.             Description = "Used for normal notifications",
47.         };
48.         default_channel.LockScreenVisibility = LockScreenVisibility.Public;
49.         AndroidNotificationCenter.RegisterNotificationChannel(default_channel);
50.  
51.         reminder_channel = new AndroidNotificationChannel() // Used for reminders like daily reward or checking back to play
52.         {
53.             Id = "reminder_channel_id",
54.             Name = "Reminder Channel",
55.             Importance = Importance.High,
56.             EnableLights = true,
57.             EnableVibration = true,
58.             Description = "Notifications to remind the player",
59.         };
60.         reminder_channel.LockScreenVisibility = LockScreenVisibility.Public;
61.         AndroidNotificationCenter.RegisterNotificationChannel(reminder_channel);
62.  
63.  
64.         AndroidNotificationCenter.CancelScheduledNotification(PlayReminder_ID); // Cancel it before rescheduling/sending again so we don't get duplicate notifications
65.         AndroidNotificationCenter.CancelNotification(PlayReminder_ID); // Cancel it before rescheduling/sending again so we don't get duplicate notifications
66.         AndroidNotificationCenter.CancelDisplayedNotification(PlayReminder_ID); // Cancel it before rescheduling/sending again so we don't get duplicate notifications
67.  
68.         #endregion
69.  
70.         #region Daily Reward
71.         DailyReward_Reminder = new AndroidNotification();
72.         DailyReward_Reminder.Title = "Daily Reward";
73.         DailyReward_Reminder.Text = "Your Daily Reward is ready to be claimed!";
74.         DailyReward_Reminder.FireTime = System.DateTime.Now.AddSeconds(25);
75.         DailyReward_Reminder.LargeIcon = "dailyreward_large";
76.  
77.  
78.         CheckDailyReward_NotificationStatus(); // Check notification status for daily rewards
79.         #endregion
80.  
81.  
82.         #region Play Reminder
83.         PlayReminder = new AndroidNotification();
84.         PlayReminder.Title = "Pssst, over here!";
85.         PlayReminder.Text = "You're missing out on a bunch of things, come check them out!";
86.         PlayReminder.FireTime = System.DateTime.Now.AddDays(3);
87.         PlayReminder.RepeatInterval = TimeSpan.FromDays(3);
88.         PlayReminder.Style = NotificationStyle.BigTextStyle;
89.  
90.         PlayReminder_notificationStatus = AndroidNotificationCenter.CheckScheduledNotificationStatus(PlayReminder_ID);
91.  
92.         if (PlayReminder_notificationStatus != NotificationStatus.Scheduled)
93.         {
94.             PlayReminder_ID = AndroidNotificationCenter.SendNotification(PlayReminder, "reminder_channel_id");
95.             Debug.Log("Notification existing, deleting sending another Play Reminder Notification..");
96.         }
97.  
98.  
99.         CheckPlayReminder_NotificationStatus();
100.  
101.         #endregion
102.     }
103.  
104.     #region Play Reminder
105.  
106.     void CheckPlayReminder_NotificationStatus()
107.     {
108.         PlayReminder_notificationStatus = AndroidNotificationCenter.CheckScheduledNotificationStatus(PlayReminder_ID);
109.         Debug.Log("Starting Play Reminder Notification Checks..");
110.         if (PlayReminder_notificationStatus == NotificationStatus.Delivered)
111.         {
112.             // Remove the previously shown notification from the status bar.
113.             Debug.Log("Play Reminder Notification already delivered, removing the notification if activated..");
114.             AndroidNotificationCenter.CancelNotification(PlayReminder_ID);
115.         }
116.     }
117.  
118.  
119.     #endregion
120.  
121.  
122.  
123.     #region Daily Rewards
124.     public void DailyRewardNotificationTrigger() // For manual triggers
125.     {
126.  
127.         DailyReward_ID = AndroidNotificationCenter.SendNotification(DailyReward_Reminder, "reminder_channel_id");
128.  
129.         Debug.Log("Notification Sent");
130.     }
131.  
132.     private void CheckDailyReward_NotificationStatus()
133.     {
134.         DailyReward_notificationStatus = AndroidNotificationCenter.CheckScheduledNotificationStatus(DailyReward_ID);
135.  
136.         Debug.Log("Starting Daily Reward Reminder Notification Checks..");
137.         if (DailyReward_notificationStatus == NotificationStatus.Delivered)
138.         {
139.             // Remove the previously shown notification from the status bar.
140.             Debug.Log("Daily Reward Notification already delivered, removing the notification..");
141.             AndroidNotificationCenter.CancelNotification(DailyReward_ID);
142.         }
143.     }
144.     #endregion
145. }

I used a 20 seconds fire time and 1 minute repeat interval for testing purposes on the PlayReminder notification.

Tried canceling the previous notification before sending another one ( like above ), tried rescheduling, tried everything.

Can someone get me out of this issue with a fix?

I cannot get it to work.

Thanks for the help!

 

I have the same problem. Does anyone know the solution?

 

I think because your firetime is a add delay already, you don't need the repeat interval at all.

 

Can I get a further explanation on this? I keep getting different IDs per notification and I cannot seem to assign them properly