From d70282e059ef9a26698f80f61626ab104f3ccb56 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BD=AD=E7=9C=9F=E6=B6=9B?=
 <16362733+peng-zhentao@user.noreply.gitee.com>
Date: Fri, 28 Aug 2026 16:26:55 +0800
Subject: [PATCH] =?UTF-8?q?=E9=A6=96=E9=A1=B5banner=E4=BC=98=E5=8C=96?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 AIK.Views/MenuPages/Home/HomePage.xaml   | 12 ++++++++----
 ViewModels/HomePage/HomePageViewModel.cs | 16 ++++++++++++++--
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/AIK.Views/MenuPages/Home/HomePage.xaml b/AIK.Views/MenuPages/Home/HomePage.xaml
index 28466c0..486287c 100644
--- a/AIK.Views/MenuPages/Home/HomePage.xaml
+++ b/AIK.Views/MenuPages/Home/HomePage.xaml
@@ -68,18 +68,22 @@
 
                 <!-- 左箭头 -->
                 <Button Command="{Binding PreviousCommand}"
-                Visibility="{Binding IsFirst, Converter={StaticResource BoolToVisibilityConverter}}"
+                Visibility="{Binding IsFirst, Converter={StaticResource BoolToVisibilityConverter}, ConverterParameter=inverse}"
                 Style="{StaticResource NavButtonStyle}"
                 HorizontalAlignment="Left" Margin="30,0,0,0">
-                    <TextBlock Text="&#xE76B;" FontFamily="Segoe MDL2 Assets" FontSize="24" Foreground="#2B579A"/>
+                    <Path Data="M15,3 L7,12 L15,21" Stroke="#2B579A" StrokeThickness="2.5"
+                          Fill="Transparent" Width="22" Height="24" Stretch="Uniform"
+                          StrokeLineJoin="Round" StrokeStartLineCap="Round" StrokeEndLineCap="Round"/>
                 </Button>
 
                 <!-- 右箭头 -->
                 <Button Command="{Binding NextCommand}"
-                Visibility="{Binding IsLast, Converter={StaticResource BoolToVisibilityConverter}}"
+                Visibility="{Binding IsLast, Converter={StaticResource BoolToVisibilityConverter}, ConverterParameter=inverse}"
                 Style="{StaticResource NavButtonStyle}"
                 HorizontalAlignment="Right" Margin="0,0,30,0">
-                    <TextBlock Text="&#xE76C;" FontFamily="Segoe MDL2 Assets" FontSize="24" Foreground="#2B579A"/>
+                    <Path Data="M9,3 L17,12 L9,21" Stroke="#2B579A" StrokeThickness="2.5"
+                          Fill="Transparent" Width="22" Height="24" Stretch="Uniform"
+                          StrokeLineJoin="Round" StrokeStartLineCap="Round" StrokeEndLineCap="Round"/>
                 </Button>
 
                 <!-- 指示器圆点 -->
diff --git a/ViewModels/HomePage/HomePageViewModel.cs b/ViewModels/HomePage/HomePageViewModel.cs
index d002113..44ccf56 100644
--- a/ViewModels/HomePage/HomePageViewModel.cs
+++ b/ViewModels/HomePage/HomePageViewModel.cs
@@ -143,6 +143,10 @@ namespace AIK.ViewModels.HomePage
                         Debug.WriteLine($"Loaded: {(loaded - start).TotalMilliseconds}ms");
                     }
                 }
+                if (Banners.Count > 0 && CurrentIndexPublic < 0)
+                {
+                    CurrentIndexPublic = 0;
+                }
             }
             catch (Exception ex)
             {
@@ -159,10 +163,18 @@ namespace AIK.ViewModels.HomePage
         }
 
         [RelayCommand]
-        private void Previous() => CurrentIndexPublic = (CurrentIndexPublic - 1 + Banners.Count) % Banners.Count;
+        private void Previous()
+        {
+            if (Banners.Count == 0) return;
+            CurrentIndexPublic = (CurrentIndexPublic - 1 + Banners.Count) % Banners.Count;
+        }
 
         [RelayCommand]
-        private void Next() => CurrentIndexPublic = (CurrentIndexPublic + 1) % Banners.Count;
+        private void Next()
+        {
+            if (Banners.Count == 0) return;
+            CurrentIndexPublic = (CurrentIndexPublic + 1) % Banners.Count;
+        }
 
         [RelayCommand]
         private void SelectBanner(int index) => CurrentIndexPublic = index;