自定义窗体标题栏及尺寸调整手柄完成

MVVMExample/Views/MainWindow.axaml

@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<Window xmlns="https://github.com/avaloniaui"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:vm="using:MVVMExample.ViewModels"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
@@ -6,15 +6,39 @@
         mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
         x:Class="MVVMExample.Views.MainWindow"
         x:DataType="vm:MainWindowViewModel"
+        SystemDecorations="None" 
         Icon="/Assets/avalonia-logo.ico"
-        Title="MVVMExample">
-
+        Title="MVVMExample"
+        CanResize="True">
+    <Window.Styles>
+		<Style Selector="Window">
+			<Setter Property="Background" Value="#0F000000"/>
+        </Style>
+    </Window.Styles>
     <Design.DataContext>
-        <!-- This only sets the DataContext for the previewer in an IDE,
-             to set the actual DataContext for runtime, set the DataContext property in code (look at App.axaml.cs) -->
         <vm:MainWindowViewModel/>
     </Design.DataContext>
-
-    <TextBlock Text="{Binding Greeting}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
-
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto"/> <!-- 标题栏行 -->
+            <RowDefinition Height="*"/> <!-- 内容行 -->
+            <RowDefinition Height="40"/>
+        </Grid.RowDefinitions>
+        <!-- 自定义标题栏 -->
+        <Border Grid.Row="0" Height="40" Background="#007ACC" PointerPressed="TitleBar_PointerPressed"> <!-- 绑定拖拽事件 -->
+            <Grid Margin="10,0">
+                <TextBlock VerticalAlignment="Center" Foreground="White" Text="{Binding Path=Title, RelativeSource={RelativeSource AncestorType=Window}}"/>
+                <StackPanel HorizontalAlignment="Right" Orientation="Horizontal" Spacing="8">
+                    <Button x:Name="MinimizeBtn" Content="─" Width="40" Click="MinimizeBtn_Click"/>
+                    <Button x:Name="MaximizeBtn" Content="□" Width="40" Click="MaximizeBtn_Click"/>
+                    <Button x:Name="CloseBtn" Content="✕" Width="40" Background="Red" Click="CloseBtn_Click"/>
+                </StackPanel>
+            </Grid>
+        </Border>
+        <!-- 主内容区 -->
+        <Border Grid.Row="1" Background="White">
+            <TextBlock Text="你的应用内容在这里" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+        </Border>
+        <Border Grid.Row="2" Width="40" Height="40" Background="Red" HorizontalAlignment="Right" PointerPressed="Bar_PointerPressed"/>
+    </Grid>
 </Window>