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自定义窗体标题栏及尺寸调整手柄完成

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于智纯
2026-01-06 16:37:54 +08:00
parent 171dcffb96
commit 328455e7ed
4 changed files with 142 additions and 9 deletions
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54
MVVMExample/Helper.cs Normal file
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@@ -0,0 +1,54 @@
using Avalonia.Controls;
using Avalonia.Input;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace MVVMExample
{
public static partial class Helper
{
/// <summary>
/// 绑定自定义窗口标题栏与尺寸调整句柄
/// </summary>
/// <param name="window">要进行绑定的窗口</param>
/// <param name="handle">窗口位置拖动句柄</param>
/// <param name="slider">窗口尺寸调整句柄</param>
/// <param name="maxBut">最大化按钮</param>
/// <param name="minBut">最小化按钮</param>
/// <param name="closeBut">关闭按钮</param>
public static void BindWindowEdge(this Window window, InputElement? handle = null, InputElement? slider = null, Button? maxBut = null, Button? minBut = null, Button? closeBut = null)
{
// 隐藏窗口默认标题栏与尺寸调整句柄
window.SystemDecorations = SystemDecorations.None;
if (handle != null)
handle.PointerPressed += (s, e) =>
{
if (e.GetCurrentPoint(window).Properties.IsLeftButtonPressed) window.BeginMoveDrag(e); // 关键：开始窗口拖拽
};
if (slider != null)
slider.PointerPressed += (s, e) =>
{
if (e.GetCurrentPoint(window).Properties.IsLeftButtonPressed) window.BeginResizeDrag(WindowEdge.SouthEast, e);
};
if (maxBut != null)
maxBut.Click += (s, e) =>
{
window.WindowState = window.WindowState == WindowState.Maximized ? WindowState.Normal : WindowState.Maximized;
};
if (minBut != null)
minBut.Click += (s, e) =>
{
window.WindowState = WindowState.Minimized;
};
if (closeBut != null)
closeBut.Click += (s, e) =>
{
window.Close();
};
}
}
}

16
MVVMExample/Themes/DefaultStyles.axaml Normal file
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<Styles xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Design.PreviewWith>
<Border Padding="20">
<!-- Add Controls for Previewer Here -->
</Border>
</Design.PreviewWith>
<!-- Add Styles Here -->
<Style Selector="Button.maxButton">
</Style>
<Style Selector="Button.maxButton:pointerover">
</Style>
</Styles>

40
MVVMExample/Views/MainWindow.axaml
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@@ -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>

41
MVVMExample/Views/MainWindow.axaml.cs
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@@ -1,4 +1,6 @@
using Avalonia.Controls;
using Avalonia.Controls;
using Avalonia.Input;
using Avalonia.Interactivity;
namespace MVVMExample.Views
{
@@ -7,6 +9,43 @@ namespace MVVMExample.Views
public MainWindow()
{
InitializeComponent();
//
}
// 处理标题栏拖拽以实现窗口移动
private void TitleBar_PointerPressed(object? sender, PointerPressedEventArgs e)
{
if (e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
{
BeginMoveDrag(e); // 关键：开始窗口拖拽
}
}
private void Bar_PointerPressed(object? sender, PointerPressedEventArgs e)
{
if (e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
{
BeginResizeDrag(WindowEdge.SouthEast, e); // 关键：开始窗口拖拽
}
}
// 最小化按钮
private void MinimizeBtn_Click(object? sender, RoutedEventArgs e)
{
WindowState = WindowState.Minimized;
}
// 最大化/还原按钮
private void MaximizeBtn_Click(object? sender, RoutedEventArgs e)
{
WindowState = WindowState == WindowState.Maximized
? WindowState.Normal
: WindowState.Maximized;
// 可选：切换最大化/还原按钮的图标
MaximizeBtn.Content = WindowState == WindowState.Maximized ? "❐" : "□";
}
// 关闭按钮
private void CloseBtn_Click(object? sender, RoutedEventArgs e)
{
Close();
}
}
}