Modify NavigateFromAsync method

PrismLibrary · Jan 14, 2024 · f70b1be · f70b1be
1 parent 9622f21
commit f70b1be
Showing 1 changed file with 43 additions and 1 deletion.
diff --git a/src/Maui/Prism.Maui/Navigation/PageNavigationService.cs b/src/Maui/Prism.Maui/Navigation/PageNavigationService.cs
@@ -2,6 +2,7 @@
 using System.Web;
 using Prism.Common;
 using Prism.Events;
+using Prism.Extensions;
 using Prism.Mvvm;
 using Application = Microsoft.Maui.Controls.Application;
 using XamlTab = Prism.Navigation.Xaml.TabbedPage;
@@ -1333,6 +1334,47 @@ public  virtual async Task<INavigationResult> NavigateFromAsync(string viewName,
     /// <inheritdoc />
     public  virtual async Task<INavigationResult> NavigateFromAsync(string viewName, Uri route, INavigationParameters parameters)
     {
-        throw new NotImplementedException();
+        await _semaphore.WaitAsync();
+        // Ensure adequate time has passed since last navigation so that UI Refresh can Occur
+        if (DateTime.Now - _lastNavigate < TimeSpan.FromMilliseconds(150))
+        {
+            await Task.Delay(150);
+        }
+
+        try
+        {
+            if (parameters is null)
+                parameters = new NavigationParameters();
+
+            NavigationSource = PageNavigationSource.NavigationService;
+
+            var routeSegments = UriParsingHelper.GetUriSegments(route);
+
+            var page = GetPageFromWindow();
+            if(page is not null && ViewModelLocator.GetNavigationName(page) == viewName)
+            {
+                await ProcessNavigation(page, routeSegments, parameters, null, true);
+            }
+            else
+            {
+                var viewNameSegment = new Queue<string>();
+                viewNameSegment.Enqueue(viewName);
+                var navigationSegments = new Queue<string>(viewNameSegment.Concat(routeSegments));
+
+                await ProcessNavigationForAbsoluteUri(routeSegments, parameters, null, true);
+            }
+
+            return Notify(route, parameters);
+        }
+        catch (Exception ex)
+        {
+            return Notify(route, parameters, ex);
+        }
+        finally
+        {
+            _lastNavigate = DateTime.Now;
+            NavigationSource = PageNavigationSource.Device;
+            _semaphore.Release();
+        }
     }
 }