Saját notify

src/WorkFlowCheck.MAUI/App.xaml.cs

@@ -8,7 +8,15 @@ using WorkFlowCheck.MAUI.DataLayer;
 using WorkFlowCheck.MAUI.Helper;
 using WorkFlowCheck.MAUI.Services;
 using WorkFlowCheck.MAUI.Services.Interfaces;
+using Android.Content.PM;
+using WorkFlowCheck.MAUI.Platforms.Android.Services;
 
+
+
+#if ANDROID
+using Android.Content;
+using WorkFlowCheck.MAUI.Platforms.Android;
+#endif
 namespace WorkFlowCheck.MAUI
 {
     public partial class App : Application
@@ -29,14 +37,15 @@ namespace WorkFlowCheck.MAUI
             _dbContext.Database.EnsureDeleted(); // Adatbázis törlése
             _dbContext.Database.EnsureCreated(); // Új adatbázis létrehozása
 
-            StartBackgroundTask();
+
+            //StartBackgroundTask();
             MainPage = new AppShell();
             //MainPage = new NavigationPage(new MainPage(serviceProvider.GetRequiredService<IUserService>()));
 
         }
         protected async override void OnResume()
         {
-            StartBackgroundTask();
+            //StartBackgroundTask();
             base.OnResume();
             var isLogged = await SecureStorage.Default.GetAsync("WFCUser");
             if (isLogged == null)

src/WorkFlowCheck.MAUI/Helper/ServiceHelper.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WorkFlowCheck.MAUI.Helper
+{
+    public static class ServiceHelper
+    {
+        public static IServiceProvider Services { get; set; }
+    }
+}

src/WorkFlowCheck.MAUI/MainPage.xaml.cs

@@ -1,7 +1,9 @@
-using DevExpress.Entity.Model.Metadata;
+using Android.Content;
+using DevExpress.Entity.Model.Metadata;
 using WorkFlowCheck.Common.DTO;
 using WorkFlowCheck.MAUI.Helper;
 using WorkFlowCheck.MAUI.Pages.Media;
+using WorkFlowCheck.MAUI.Platforms.Android.Services;
 using WorkFlowCheck.MAUI.Services.Interfaces;
 namespace WorkFlowCheck.MAUI
 {
@@ -15,6 +17,7 @@ namespace WorkFlowCheck.MAUI
         {
             InitializeComponent();
             _userService = userService;
+
         }
 
         private void SetInfo()

src/WorkFlowCheck.MAUI/MauiProgram.cs

@@ -65,6 +65,7 @@ namespace WorkFlowCheck.MAUI
 
 
             ServiceProvider = app.Services;
+            ServiceHelper.Services = app.Services;
             return app;
         }
 

src/WorkFlowCheck.MAUI/Pages/Security/LoginPage.xaml.cs

@@ -1,8 +1,10 @@
+using Android.Content;
 using CommunityToolkit.Maui.Alerts;
 using CommunityToolkit.Maui.Core;
 using System.Drawing;
 using WorkFlowCheck.MAUI.Helper;
 using WorkFlowCheck.MAUI.Pages.NFC;
+using WorkFlowCheck.MAUI.Platforms.Android.Services;
 using WorkFlowCheck.MAUI.Services.Interfaces;
 
 namespace WorkFlowCheck.MAUI.Pages.Security;
@@ -35,6 +37,10 @@ public partial class LoginPage : BasePage
                 _userService.SetCurrentUser(response.Data);
                 SystemHelper.SystemUserDTO = response.Data;
 
+#if ANDROID
+                var intent = new Intent(Android.App.Application.Context, typeof(NotifyService));
+                Android.App.Application.Context.StartForegroundService(intent);
+#endif
 
 
                 var wFCUser = Newtonsoft.Json.JsonConvert.SerializeObject(response.Data);

src/WorkFlowCheck.MAUI/Platforms/Android/AndroidManifest.xml

@@ -15,6 +15,11 @@
                 android:name="android.support.FILE_PROVIDER_PATHS"
                 android:resource="@xml/file_paths" />
         </provider>
+        <service android:name="WorkFlowCheck.MAUI.Platforms.Android.Services.NotifyService"
+                 android:enabled="true"
+                 android:exported="true"
+                 android:foregroundServiceType="dataSync"
+                 android:process=":notiprocess"/>
     </application>
 	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 	<uses-permission android:name="android.permission.INTERNET" />
@@ -23,5 +28,7 @@
 	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 	<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
 	<uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 	<uses-feature android:name="android.hardware.nfc" android:required="true" />
 </manifest>

src/WorkFlowCheck.MAUI/Platforms/Android/Services/NotifyService.cs

@@ -0,0 +1,124 @@
+using Android.App;
+using Android.Content;
+using Android.OS;
+using System.Threading;
+using System.Threading.Tasks;
+using WorkFlowCheck.MAUI.Helper;
+using WorkFlowCheck.MAUI.Services.Interfaces;
+
+namespace WorkFlowCheck.MAUI.Platforms.Android.Services
+{
+    [Service]
+    public class NotifyService : Service
+    {
+        private CancellationTokenSource _cts;
+        private IUserService _userService;
+        private ISyncService _syncService;
+        public NotifyService()
+        {
+            
+        }
+        public override IBinder OnBind(Intent intent) => null;
+
+        public override StartCommandResult OnStartCommand(Intent intent, StartCommandFlags flags, int startId)
+        {
+            CreateNotificationChannel();
+
+            var notification = new Notification.Builder(this, "polling_channel")
+                .SetContentTitle("Értesítés figyelés")
+                .SetContentText("A háttérfigyelés aktív")
+                .SetSmallIcon(Resource.Drawable.notification_icon)
+                .SetVisibility(NotificationVisibility.Public) // Lock screen-en is látszódjon
+                .SetPriority((int)NotificationPriority.High)
+                .Build();
+
+            StartForeground(1, notification);
+
+            _cts = new CancellationTokenSource();
+            
+            var _syncService = ServiceHelper.Services.GetService(typeof(ISyncService)) as ISyncService;
+            var _userService = ServiceHelper.Services.GetService(typeof(IUserService)) as IUserService;
+            Task.Run(async () =>
+            {
+                await _syncService.SyncUsers_Down((progress, message) =>
+                {
+                    
+                }); 
+
+            }, _cts.Token);
+            var userDTO = _userService.GetCurrentUser();
+            if (userDTO != null && userDTO.Id > 0)
+            {
+                if (userDTO.RoleDTO?.Count > 0)
+                {
+                    foreach (var roleDTO in userDTO.RoleDTO)
+                    {
+                        if (roleDTO.CanEnableBlocked)
+                        {
+                            
+
+                            Task.Run(async () =>
+                            {
+                                
+
+                                while (!_cts.Token.IsCancellationRequested)
+                                {
+                                    var deviceMessageDTOList = await _syncService.DeviceMessageReadUnreaded(_userService.DeviceId.ToUpper());
+                                    if (deviceMessageDTOList != null && deviceMessageDTOList.Count > 0)
+                                    {
+                                        ShowNotification("Új esemény", deviceMessageDTOList[0].Message);
+                                        break;
+                                    }
+                                    deviceMessageDTOList = await _syncService.DeviceMessageReadUnreadedRole(roleDTO.Id);
+                                    if (deviceMessageDTOList != null && deviceMessageDTOList.Count > 0)
+                                    {
+                                        ShowNotification("Új esemény", deviceMessageDTOList[0].Message);
+                                        break;
+                                    }
+                                    await Task.Delay(5000);
+                                }
+                            }, _cts.Token);
+                        }
+                    }
+                }
+            }
+            return StartCommandResult.Sticky;
+        }
+
+         
+        public override void OnDestroy()
+        {
+            _cts?.Cancel();
+            base.OnDestroy();
+        }
+
+        private void CreateNotificationChannel()
+        {
+            if (Build.VERSION.SdkInt >= BuildVersionCodes.O)
+            {
+                var channel = new NotificationChannel("polling_channel", "Polling Channel", NotificationImportance.High)
+                {
+                    Description = "Foreground service polling channel",
+                    LockscreenVisibility = NotificationVisibility.Public
+                };
+
+                var notificationManager = (NotificationManager)GetSystemService(NotificationService);
+                notificationManager.CreateNotificationChannel(channel);
+            }
+        }
+
+        private void ShowNotification(string title, string message)
+        {
+            var builder = new Notification.Builder(this, "polling_channel")
+                .SetContentTitle(title)
+                .SetContentText(message)
+                .SetSmallIcon(Resource.Drawable.notification_icon)
+                .SetAutoCancel(true)
+                .SetVisibility(NotificationVisibility.Public)
+                .SetPriority((int)NotificationPriority.High);
+
+            var notificationManager = (NotificationManager)GetSystemService(NotificationService);
+            notificationManager.Notify(new System.Random().Next(), builder.Build());
+        }
+    }
+}

src/WorkFlowCheck.MAUI/WorkFlowCheck.MAUI.csproj

@@ -31,7 +31,7 @@
 
 		<!--<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">11.0</SupportedOSPlatformVersion>-->
 		<!--<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">13.1</SupportedOSPlatformVersion>-->
-		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">21.0</SupportedOSPlatformVersion>
+		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">29.0</SupportedOSPlatformVersion>
 		<!--<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</SupportedOSPlatformVersion>
 		<TargetPlatformMinVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</TargetPlatformMinVersion>
 		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'tizen'">6.5</SupportedOSPlatformVersion>-->
@@ -159,4 +159,10 @@
 	  <Folder Include="Platforms\Android\Resources\mipmap-xxxhdpi\" />
 	</ItemGroup>
 
+	<ItemGroup>
+	  <AndroidResource Update="Platforms\Android\Resources\drawable\notification_icon.png">
+	    <CopyToOutputDirectory>Never</CopyToOutputDirectory>
+	  </AndroidResource>
+	</ItemGroup>
+
 </Project>