refresh on open app

RBLNews.Maui/App.xaml.cs

@@ -1,12 +1,33 @@
-namespace RBLNews.Maui
+using RBLNews.Shared.Services;
+
+namespace RBLNews.Maui
 {
     public partial class App : Application
     {
-        public App()
+        private readonly AppLifecycleService _appLifecycleService;
+
+        public App(AppLifecycleService appLifecycleService)
         {
+            _appLifecycleService = appLifecycleService;
             InitializeComponent();
 
             MainPage = new MainPage();
         }
+
+        protected override Window CreateWindow(IActivationState activationState)
+        {
+            Window window = base.CreateWindow(activationState);
+            window.Activated += (sender, eventArgs) =>
+            {
+                _appLifecycleService.Activated();
+
+            };
+            window.Resumed += (sender, eventArgs) =>
+            {
+                _appLifecycleService.Resumed();
+                // take actions here...
+            };
+            return window;
+        }
     }
 }

RBLNews.Maui/MainPage.xaml

@@ -5,11 +5,11 @@
              xmlns:shared="clr-namespace:RBLNews.Shared;assembly=RBLNews.Shared"
              x:Class="RBLNews.Maui.MainPage"
              BackgroundColor="{DynamicResource PageBackgroundColor}">
-
+    <RefreshView x:Name="RefreshView" Refreshing="RefreshView_Refreshing">
         <BlazorWebView x:Name="blazorWebView" HostPage="wwwroot/index.html">
             <BlazorWebView.RootComponents>
                 <RootComponent Selector="#app" ComponentType="{x:Type shared:Components.Routes}" />
             </BlazorWebView.RootComponents>
         </BlazorWebView>
-
+    </RefreshView>
 </ContentPage>

RBLNews.Maui/MainPage.xaml.cs

@@ -1,4 +1,6 @@
-namespace RBLNews.Maui
+using RBLNews.Shared.Components.Pages;
+
+namespace RBLNews.Maui
 {
     public partial class MainPage : ContentPage
     {
@@ -6,5 +8,15 @@
         {
             InitializeComponent();
         }
+
+        void RefreshView_Refreshing(object sender, EventArgs e)
+        {
+            if (RefreshablePageBase.Current?.NavigationManager != null)
+            {
+                var navigationManager = RefreshablePageBase.Current.NavigationManager;
+                navigationManager.NavigateTo(navigationManager.Uri, true, true);
+                RefreshView.IsRefreshing = false;
+            }
+        }
     }
 }

RBLNews.Maui/MauiProgram.cs

@@ -20,6 +20,7 @@ namespace RBLNews.Maui
             builder.Services.AddBlazorBootstrap();
 
             builder.Services.AddSingleton<IFeedDataService, FeedDataService>();
+            builder.Services.AddSingleton<AppLifecycleService>();
 
 #if DEBUG
             builder.Services.AddBlazorWebViewDeveloperTools();

RBLNews.Maui/RBLNews.Maui.csproj

@@ -84,4 +84,6 @@
       <Folder Include="IaC\" />
     </ItemGroup>
 
+    <ProjectExtensions><VisualStudio><UserProperties XamarinHotReloadDebuggerTimeoutExceptionRBLNewsMauiHideInfoBar="True" /></VisualStudio></ProjectExtensions>
+
 </Project>

RBLNews.Shared/Components/Pages/Feeds.razor

@@ -1,14 +1,16 @@
-@page "/"
+@inherits RefreshablePageBase
+@page "/"
 @using RBLFeederCommon.Enums
 @using RBLFeederCommon.Models.RssFeed
 @using RBLNews.Shared.Services
 
 @inject IFeedDataService feedDataService
+@inject AppLifecycleService appLifecycleService
 
 @if (FeedDataService.Feeds == null)
 {
     <div class="d-flex justify-content-center">
-        Lade Feeds ...<br/>
+        Lade Feeds ...<br/><br/>
         <Spinner Type="SpinnerType.Grow" Color="SpinnerColor.Primary" Size="SpinnerSize.Large" />
     </div>
 }
@@ -19,7 +21,7 @@ else
         <div class="container">
             @foreach (FeedGroupVM feedGrp in this.FeedDataService.Feeds.FeedGroups)
             {
-                <h4><Icon Name="IconName.Calendar2Event" /> @feedGrp.PublishDate.ToString("dd.MM.yyyy")</h4>
+                <h4><Icon Name="IconName.Calendar2Event" /> @feedGrp.PublishDate.ToLocalTime().ToString("dd.MM.yyyy")</h4>
                 @foreach (FeedVM feed in feedGrp.Feeds)
                 {
                     <div class="col-xs-12 col-sm-12 col-md-8 col-lg-4">
@@ -30,7 +32,7 @@ else
                             </CardBody>
                             <ul class="list-group list-group-flush">
                                 <li class="list-group-item">
-                                    @GetRssSourceName((RssFeedSources)@feed.Source) | @feed.PubDate
+                                    @GetRssSourceName((RssFeedSources)@feed.Source) | @feed.PubDate?.ToLocalTime()
                                 </li>
                             </ul>
                             <CardFooter>
@@ -52,9 +54,20 @@ else
     [Inject]
     private IFeedDataService FeedDataService { get; set; }
 
-    protected async override Task OnInitializedAsync()
+    [Inject]
+    private AppLifecycleService AppLifecycleService { get; set; }
+
+    protected override void OnInitialized()
+    {
+        AppLifecycleService.OnActivated = LoadFeeds;
+
+        LoadFeeds();
+    }
+
+    private async void LoadFeeds()
     {
         await FeedDataService.LoadFeeds();
+        StateHasChanged();
     }
 
     private string GetRssSourceName(RssFeedSources source)

RBLNews.Shared/Components/Pages/RefreshablePageBase.cs

@@ -0,0 +1,18 @@
+
+using Microsoft.AspNetCore.Components;
+
+namespace RBLNews.Shared.Components.Pages
+{
+    public abstract class RefreshablePageBase : ComponentBase
+    {
+        public static RefreshablePageBase Current;
+
+        [Inject] 
+        public NavigationManager NavigationManager { get; set; }
+
+        protected RefreshablePageBase()
+        {
+            Current = this;
+        }
+    }
+}

RBLNews.Shared/Services/AppLifecycleService.cs

@@ -0,0 +1,17 @@
+namespace RBLNews.Shared.Services
+{
+    public class AppLifecycleService
+    {
+        internal Action OnResumed;
+        internal Action OnActivated;
+
+        public void Resumed()
+        {
+            OnResumed?.Invoke();
+        }
+        public void Activated()
+        {
+            OnActivated?.Invoke();
+        }
+    }
+}

RBLNews.sln

@@ -5,9 +5,9 @@ VisualStudioVersion = 17.11.35222.181
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RBLNews.Maui", "RBLNews.Maui\RBLNews.Maui.csproj", "{671920E6-6BE5-4F41-8F85-EB029567866E}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RBLNews.Web", "RBLNews.Web\RBLNews.Web.csproj", "{0409A1B9-73D9-477E-91C9-80AE3C25C4E9}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RBLNews.Web", "RBLNews.Web\RBLNews.Web.csproj", "{0409A1B9-73D9-477E-91C9-80AE3C25C4E9}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RBLNews.Shared", "RBLNews.Shared\RBLNews.Shared.csproj", "{1A0120DC-700A-4C8E-BC3A-ECFFBE973563}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RBLNews.Shared", "RBLNews.Shared\RBLNews.Shared.csproj", "{1A0120DC-700A-4C8E-BC3A-ECFFBE973563}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution