Android Notification not working

[David_Turull]

I think typed everything correctly why aren’t the Android notifications working? I am using Android 12 on my Samsung Galaxy Z Flip 3 5G and the latest Unity LTS version which is 2021.3.11f1 currently. Here is my Android Notification Handler script:

using System;
using System.Collections;
using System.Collections.Generic;
#if UNITY_ANDROID
using Unity.Notifications.Android;
#endif
using UnityEngine;

public class AndroidNotificationHandler : MonoBehaviour
{
#if UNITY_ANDROID
    private const string ChannelId = "notification_channel";
    public void ScheduleNotificaton(DateTime dateTime)
    {
        AndroidNotificationChannel notificationChannel = new AndroidNotificationChannel
        {
            Id = ChannelId,
            Name = "Notification Channel",
            Description = "the default Notification Channel",
            Importance =Importance.Default
        };

        AndroidNotificationCenter.RegisterNotificationChannel(notificationChannel);

        AndroidNotification notification = new AndroidNotification
        {
            Title = "Energy Recharged",
            Text = "Your energy has recharged, come back to play again!",
            SmallIcon = "default",
            LargeIcon = "default",
            FireTime = dateTime
        };

        AndroidNotificationCenter.SendNotification(notification, ChannelId);
    }

#endif
}

And here is the Main Menu Script:

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class MainMenu : MonoBehaviour
{
    [SerializeField] private TMP_Text highScoreText;
    [SerializeField] private TMP_Text energyText;
    [SerializeField] private Button playButton;
    [SerializeField] private AndroidNotificationHandler androidNotificationHandler;
    [SerializeField] private int maxEnergy;
    [SerializeField] private int energyRechargeDuration;

    private int energy;

    private const string EnergyKey = "Energy";
    private const string EnergyReadyKey = "EnergyReady";

    private void Start()
    {
        OnApplicationFocus(true);
    }


    private void OnApplicationFocus(bool hasFocus)
    {
        if(!hasFocus)
        {
            return;
        }

        CancelInvoke();


        float currenthighcore = PlayerPrefs.GetInt(ScoreSystem.HighScoreKey, 0);
        highScoreText.text = $"High Score: {currenthighcore}";

        energy = PlayerPrefs.GetInt(EnergyKey, maxEnergy);

        if (energy == 0)
        {
            string energyReadyString = PlayerPrefs.GetString(EnergyReadyKey, string.Empty);

            if (energyReadyString == string.Empty) { return; }

            DateTime energyReady = DateTime.Parse(energyReadyString);

            if(DateTime.Now > energyReady)
            {
                playButton.interactable = true;
                energy = maxEnergy;
                PlayerPrefs.SetInt(EnergyKey, energy);
            }
            else
            {
                playButton.interactable = false;
                Invoke(nameof(EnergyRecharged), (energyReady - DateTime.Now).Seconds);
            }
        }

        energyText.text = $"Play (Energy {energy})";

    }

    private void EnergyRecharged()
    {
        playButton.interactable = true;
        energy = maxEnergy;
        PlayerPrefs.SetInt(EnergyKey, energy);
        energyText.text = $"Play (Energy {energy})";
    }


    public void Play()
    {
        if(energy < 1) { return; };
        energy--;

        PlayerPrefs.SetInt(EnergyKey, energy);

        if (energy == 0)
        {
            DateTime energyReady = DateTime.Now.AddMinutes(energyRechargeDuration);
            PlayerPrefs.SetString(EnergyReadyKey, energyReady.ToString());
#if Unity_ANDROID
            androidNotificationHandler.ScheduleNotificaton(energyReady);
#endif
        }
            SceneManager.LoadScene(1);
        
    }
}

Did I type something wrong? Am I missing a request for permission or do I need a Google Developer account make the notifications work? Please help.

[David_Turull]

I just realized that I had spelled Notification wrong when I named the function ScheduleNotificaton without the i. Maybe that was my issue.

[Brian_Trotter]

@David_Turull

#if Unity_ANDROID

I suspect this may be your issue… Compiler directives are case sensitive.
Try

#if UNITY_ANDROID