Wrote some black magic due to this bug https://github.com/windows-toolkit/Microsoft.Toolkit.Win32/issues/228

2021-02-08 01:13:24 +00:00
parent 72941706d9
commit 1f9e90c8fe
12 changed files with 283 additions and 53 deletions
@@ -1,12 +1,47 @@
-using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;

 namespace NotificationFlyout.Uwp.UI.Controls
 {
    public class NotificationFlyoutPresenter : ContentControl
    {
+        private NotificationFlyoutContentPresenter _contentPresenter;
+
        public NotificationFlyoutPresenter()
        {
            DefaultStyleKey = typeof(NotificationFlyoutPresenter);
+            ActualThemeChanged += OnActualThemeChanged;
+        }
+
+        protected override void OnApplyTemplate()
+        {
+            _contentPresenter = GetTemplateChild("ContentPresenter") as NotificationFlyoutContentPresenter;
+        }
+
+        public void SetBackground(string theme)
+        {
+            if (_contentPresenter == null) return;
+            if (RequestedTheme == ElementTheme.Default)
+            {
+                ActualThemeChanged -= OnActualThemeChanged;
+
+                switch (theme)
+                {
+                    case "Dark":
+                        _contentPresenter.SetValue(RequestedThemeProperty, ElementTheme.Dark);
+                        break;
+                    case "Light":
+                        _contentPresenter.SetValue(RequestedThemeProperty, ElementTheme.Light);
+                        break;
+                }
+
+                ActualThemeChanged += OnActualThemeChanged;
+            }
+        }
+
+        private void OnActualThemeChanged(FrameworkElement sender, object args)
+        {
+            _contentPresenter.SetValue(RequestedThemeProperty, RequestedTheme);
        }
    }
 }