重新想象 Windows 8 Store Apps (49) - 输入: 获取输入设备信息, 虚拟键盘, Tab 导航, Pointer, Tap, Drag, Drop

[源码下载]

重新想象 Windows 8 Store Apps (49) - 输入: 获取输入设备信息, 虚拟键盘, Tab 导航, Pointer, Tap, Drag, Drop

作者：webabcd

介绍
重新想象 Windows 8 Store Apps 之 输入

• 输入设备的相关信息
• SIP（Soft Input Panel）的应用
• Tab 键导航
• Pointer - 指针，鼠标
• Tap - 触摸
• Drag 和 Drop

示例
1、演示如何获取输入设备的相关信息
Input/InputDeviceInfo.xaml

<Page
    x:Class="XamlDemo.Input.InputDeviceInfo"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Input"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <Grid Margin="120 0 0 0">

            <ScrollViewer Margin="0 0 10 10">
                <TextBlock Name="lblMsg" FontSize="14.667" TextWrapping="Wrap" />
            </ScrollViewer>

        </Grid>
    </Grid>
</Page>

Input/InputDeviceInfo.xaml.cs

/*
 * 演示如何获取输入设备的相关信息
 */

using System;
using Windows.Devices.Input;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;

namespace XamlDemo.Input
{
    public sealed partial class InputDeviceInfo : Page
    {
        public InputDeviceInfo()
        {
            this.InitializeComponent();
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            // 获取鼠标设备的相关信息
            MouseCapabilities mouseCapabilities = new MouseCapabilities();
            lblMsg.Text = "MouseCapabilities.MousePresent: " + mouseCapabilities.MousePresent; // 是否存在鼠标
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "MouseCapabilities.HorizontalWheelPresent: " + mouseCapabilities.HorizontalWheelPresent; // 是否有水平滚轮
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "MouseCapabilities.VerticalWheelPresent: " + mouseCapabilities.VerticalWheelPresent; // 是否有垂直滚轮
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "MouseCapabilities.SwapButtons: " + mouseCapabilities.SwapButtons; // 是否交换了左右按钮
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "MouseCapabilities.NumberOfButtons: " + mouseCapabilities.NumberOfButtons; // 鼠标上的按钮数量
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += Environment.NewLine;

            // 获取硬件键盘设备的相关信息
            KeyboardCapabilities keyboardCapabilities = new KeyboardCapabilities();
            lblMsg.Text += "KeyboardCapabilities.KeyboardPresent: " + keyboardCapabilities.KeyboardPresent; // 是否存在硬件键盘
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += Environment.NewLine;

            // 获取触摸设备的相关信息
            TouchCapabilities touchCapabilities = new TouchCapabilities();
            lblMsg.Text += "TouchCapabilities.TouchPresent: " + touchCapabilities.TouchPresent; // 是否存在触摸设备
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "TouchCapabilities.Contacts: " + touchCapabilities.Contacts; // 触摸设备所支持的多点触摸的点数
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += Environment.NewLine;

            // 获取 Pointer 设备（Touch, Pen, Mouse）的相关信息
            var pointerDeviceList = PointerDevice.GetPointerDevices();
            int displayIndex = ;
            foreach (PointerDevice pointerDevice in pointerDeviceList)
            {
                displayIndex++;

                lblMsg.Text += "Pointer Device Index: " + displayIndex;
                lblMsg.Text += Environment.NewLine;
                lblMsg.Text += "PointerDevice.PointerDeviceType: " + pointerDevice.PointerDeviceType; // Pointer 类型（Touch, Pen, Mouse）
                lblMsg.Text += Environment.NewLine;
                lblMsg.Text += "PointerDevice.IsIntegrated: " + pointerDevice.IsIntegrated; // 是否是集成设备
                lblMsg.Text += Environment.NewLine;
                lblMsg.Text += "PointerDevice.MaxContacts: " + pointerDevice.MaxContacts; // 最大的同时触摸点数
                lblMsg.Text += Environment.NewLine;
                lblMsg.Text += "PointerDevice.PhysicalDeviceRect: " + pointerDevice.PhysicalDeviceRect; // 物理设备的 Rect
                lblMsg.Text += Environment.NewLine;
                lblMsg.Text += "PointerDevice.ScreenRect: " + pointerDevice.ScreenRect; // Pointer 设备所支持的屏幕的 Rect
                lblMsg.Text += Environment.NewLine;
                lblMsg.Text += Environment.NewLine;
            }
        }
    }
}

2、演示 SIP（Soft Input Panel）的应用
Input/Keyboard/Demo.xaml

<Page
    x:Class="XamlDemo.Input.Keyboard.Demo"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Input.Keyboard"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <StackPanel Margin="120 0 0 0">

            <!--
                TextBox - 文本输入框
                    IsTextPredictionEnabled - 是否启用“自动完成”，默认值 true
                    IsSpellCheckEnabled - 是否启用拼音检查，默认值 false
            -->
            <TextBox IsTextPredictionEnabled="True" IsSpellCheckEnabled="True" Margin="0 0 10 0" />

            <!--
                InputScope - 限制 SIP 的输入范围，即设置 SIP 的布局方式
            -->
            <TextBox InputScope="Default" Margin="0 10 10 0"  />

            <TextBox KeyDown="TextBox_KeyDown_1" Margin="0 10 10 0">
                <TextBox.InputScope>
                    <InputScope>
                        <InputScope.Names>
                            <InputScopeName NameValue="TelephoneNumber" />
                        </InputScope.Names>
                    </InputScope>
                </TextBox.InputScope>
            </TextBox>

            <!--
                对于 ReadOnly 的输入框，即使获取到焦点也不会弹出虚拟键盘
            -->
            <TextBox Name="txtReadOnly" IsReadOnly="True" Margin="0 10 10 0" />

        </StackPanel>
    </Grid>
</Page>

Input/Keyboard/Demo.xaml.cs

/*
 * 演示 SIP（Soft Input Panel）的应用
 *
 * 注：
 * 1、TextBox, RichEditBox, PasswordBox 等文本输入框获取焦点后，会自动显示虚拟键盘（对于 ReadOnly 的输入框，即使获取到焦点也不会弹出虚拟键盘）
 * 2、键盘相关的事件有 KeyDown 和 KeyUp
 * 3、WinRT 的 SIP 支持的 InputScope 类型详见 Windows.UI.Xaml.Input.InputScopeNameValue 枚举
 *
 *
 * Windows.UI.ViewManagement.InputPane - 软键盘面板
 *     GetForCurrentView() - 获取当前的 InputPane 对象
 *     OccludedRect - 软键盘面板所占用的矩形区域
 *     Hiding - 软键盘隐藏时触发的事件
 *     Showing - 软键盘显示时触发的事件
 *
 *
 * 如果需要检测当前某个虚拟按键的状态，可以用如下方法：
 * CoreWindow.GetAsyncKeyState(VirtualKey virtualKey)
 * CoreWindow.GetKeyState(VirtualKey virtualKey)
 *
 * 监测键盘事件可以通过 CoreWindow.KeyDown 事件
 * 关于 CoreWindow 的更多内容请参见：Feature/CoreDemo.xaml.cs
 */

using System;
using Windows.System;
using Windows.UI.Core;
using Windows.UI.Popups;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Input;

namespace XamlDemo.Input.Keyboard
{
    public sealed partial class Demo : Page
    {
        public Demo()
        {
            this.InitializeComponent();

            this.Loaded += Demo_Loaded;
        }

        async void Demo_Loaded(object sender, RoutedEventArgs e)
        {
            // 检测虚拟按键当前的状态
            CoreVirtualKeyStates capitalLockState = Windows.UI.Xaml.Window.Current.CoreWindow.GetKeyState(VirtualKey.CapitalLock);
            if (capitalLockState == CoreVirtualKeyStates.Locked)
            {
                await new MessageDialog("您的键盘处于“大写”输入状态").ShowAsync();
            }
        }

        private void TextBox_KeyDown_1(object sender, KeyRoutedEventArgs e)
        {
            // 判断用户是否按下了 SIP 上的回车键
            if (e.Key == VirtualKey.Enter)
            {
                // 将焦点移出文本输入框，虚拟键盘会自动隐藏
                txtReadOnly.Focus(FocusState.Programmatic);
            }
        }
    }
}

3、演示 Control 的 Tab 导航相关属性的应用
Input/Keyboard/TabNavigation.xaml

<Page
    x:Class="XamlDemo.Input.Keyboard.TabNavigation"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Input.Keyboard"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <StackPanel Margin="120 0 0 0">

            <!--
                演示 Control 的 Tab 导航相关属性的应用

                Control - 控件
                    TabIndex - Tab 导航的顺序，默认值为 int.MaxValue
                    IsTabStop - 是否加入 Tab 导航，默认值为 true
                    TabNavigation - Tab 导航的工作方式。经测试，没什么效果
            -->

            <Button Content="button 1" TabIndex="3" TabNavigation="Once" />
            <Button Content="button 2" Margin="0 10 0 0" TabIndex="1" />
            <Button Content="button 3" Margin="0 10 0 0" IsTabStop="False" />
            <Button Content="button 4" Margin="0 10 0 0" TabIndex="4" />
            <Button Content="button 5" Margin="0 10 0 0" TabIndex="2" />

            <ListBox Width="200" Height="300" Margin="0 10 0 0" HorizontalAlignment="Left" VerticalAlignment="Top">
                <ListBox.Items>
                    <ListBoxItem Content="ListBoxItem1" />
                    <ListBoxItem Content="ListBoxItem2" />
                    <ListBoxItem Content="ListBoxItem3" />
                </ListBox.Items>
            </ListBox>

        </StackPanel>
    </Grid>
</Page>

4、演示 Pointer 相关事件的应用
Input/Touch/Pointer.xaml

<Page
    x:Class="XamlDemo.Input.Touch.Pointer"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Input.Touch"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <Grid Margin="120 0 0 0">

            <Rectangle Name="rectangle" Width="400" Height="100" Fill="Orange" HorizontalAlignment="Left" VerticalAlignment="Top" />

            <ScrollViewer Margin="0 110 0 10" HorizontalAlignment="Stretch" VerticalAlignment="Top">
                <TextBlock Name="lblMsg" FontSize="14.667" TextWrapping="Wrap" />
            </ScrollViewer>

        </Grid>
    </Grid>
</Page>

Input/Touch/Pointer.xaml.cs

/*
 * 演示 Pointer 相关事件的应用
 *
 *
 * PointerRoutedEventArgs - 指针路由事件的事件参数
 *     OriginalSource - 引发此路由事件的对象
 *     Handled - 是否将事件标记为已处理
 *     KeyModifiers - 获取当前按下的辅助键（Windows.System.VirtualKeyModifiers 枚举）
 *         None, Control, Menu, Shift, Windows
 *     Pointer - 获取 Pointer 对象
 *         Pointer.PointerDeviceType - 指针设备的类型（Touch, Pen, Mouse）
 *         Pointer.PointerId - 指针标识，可以根据此属性来区分多点触摸场景下的不同指针
 *     GetCurrentPoint(UIElement relativeTo) - 返回当前指针相对于指定元素的 PointerPoint 对象
 *         PointerPoint.Position -  指针的位置
 *         PointerPoint.Properties - 返回 PointerPointProperties 对象，有一堆 PointerPoint 的相关属性
 *     GetIntermediatePoints(UIElement relativeTo) - 返回与此事件关联的 PointerPoint 的中间值（平均值）集合
 *
 *
 * HoldingRoutedEventArgs - Holding 路由事件的事件参数
 *     OriginalSource - 引发此路由事件的对象
 *     Handled - 是否将事件标记为已处理
 *     PointerDeviceType - 指针设备的类型（Touch, Pen, Mouse）
 *     GetPosition(UIElement relativeTo) - 返回当前指针相对于指定元素的位置
 *     HoldingState - Holding 状态（Windows.UI.Input.HoldingState 枚举）
 *         Started, Completed, Canceled
 *
 *
 * UIElement.CapturePointer(Pointer value) - 捕获此 UIElement 上的指针，即在 UIElement 之外也可以响应 PointerReleased 事件
 * UIElement.ReleasePointerCapture(Pointer value) - 释放对此 UIElement 上的指针的捕获
 * UIElement.ReleasePointerCaptures() - 释放全部指针的捕获
 *
 *
 * 注：通过 CoreWindow.PointerCursor 设置指针光标的样式
 */

using System;
using Windows.UI.Core;
using Windows.UI.Input;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Shapes;

namespace XamlDemo.Input.Touch
{
    public sealed partial class Pointer : Page
    {
        public Pointer()
        {
            this.InitializeComponent();

            // 修改指针光标的样式
            Windows.UI.Xaml.Window.Current.CoreWindow.PointerCursor = new CoreCursor(CoreCursorType.Cross, );

            rectangle.PointerEntered += rectangle_PointerEntered;
            rectangle.PointerExited += rectangle_PointerExited;
            rectangle.PointerPressed += rectangle_PointerPressed;
            rectangle.PointerReleased += rectangle_PointerReleased;
            rectangle.PointerMoved += rectangle_PointerMoved;
            rectangle.PointerWheelChanged += rectangle_PointerWheelChanged;
            rectangle.PointerCanceled += rectangle_PointerCanceled;
            rectangle.PointerCaptureLost += rectangle_PointerCaptureLost;
            rectangle.Holding += rectangle_Holding;
        }

        void rectangle_Holding(object sender, HoldingRoutedEventArgs e)
        {
            lblMsg.Text += "Holding";
            lblMsg.Text += Environment.NewLine;
        }

        void rectangle_PointerCaptureLost(object sender, PointerRoutedEventArgs e)
        {
            lblMsg.Text += "PointerCaptureLost " + e.Pointer.PointerId;
            lblMsg.Text += Environment.NewLine;
        }

        void rectangle_PointerCanceled(object sender, PointerRoutedEventArgs e)
        {
            lblMsg.Text += "PointerCanceled " + e.Pointer.PointerId;
            lblMsg.Text += Environment.NewLine;
        }

        void rectangle_PointerWheelChanged(object sender, PointerRoutedEventArgs e)
        {
            // 判断鼠标滚轮的滚动方向
            lblMsg.Text += "PointerWheelChanged " + e.GetCurrentPoint(null).Properties.MouseWheelDelta;
            lblMsg.Text += Environment.NewLine;
        }

        void rectangle_PointerMoved(object sender, PointerRoutedEventArgs e)
        {
            // lblMsg.Text += "PointerMoved " + e.Pointer.PointerId;
            // lblMsg.Text += Environment.NewLine;
        }

        void rectangle_PointerReleased(object sender, PointerRoutedEventArgs e)
        {
            lblMsg.Text += "PointerReleased " + e.Pointer.PointerId;
            lblMsg.Text += Environment.NewLine;

            ((Rectangle)sender).ReleasePointerCapture(e.Pointer);
        }

        void rectangle_PointerPressed(object sender, PointerRoutedEventArgs e)
        {
            lblMsg.Text += "PointerPressed " + e.Pointer.PointerId;
            lblMsg.Text += Environment.NewLine;

            bool hasCapture = ((Rectangle)sender).CapturePointer(e.Pointer);
            lblMsg.Text += "Got Capture: " + hasCapture;
            lblMsg.Text += Environment.NewLine;

            PointerPointProperties props = e.GetCurrentPoint(null).Properties;
            lblMsg.Text += "接触区域的边框: " + props.ContactRect.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "原始输入的边框: " + props.ContactRectRaw.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "触笔设备的筒状按钮是否按下: " + props.IsBarrelButtonPressed.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "输入是否已由指针设备取消: " + props.IsCanceled.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "输入是否来自橡皮擦: " + props.IsEraser.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "输入是否来自滚轮: " + props.IsHorizontalMouseWheel.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "指针是否在触摸屏的范围内: " + props.IsInRange.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "是否是反转的值: " + props.IsInverted.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "输入是否来自鼠标左键: " + props.IsLeftButtonPressed.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "输入是否来自鼠标中键: " + props.IsMiddleButtonPressed.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "输入是否来自鼠标右键: " + props.IsRightButtonPressed.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "输入是否来自主要指针: " + props.IsPrimary.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "第一个扩展按钮的按下状态: " + props.IsXButton1Pressed.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "第二个扩展按钮的按下状态: " + props.IsXButton2Pressed.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "指针施加到触摸屏上的力度（0.0-1.0）: " + props.Pressure.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "触摸是否被拒绝了: " + props.TouchConfidence.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "指针状态的更改类型: " + props.PointerUpdateKind.ToString(); // PointerUpdateKind 枚举：LeftButtonPressed, LeftButtonReleased 等等
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "指针设备相关的 Orientation: " + props.Orientation.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "指针设备相关的 Twist: " + props.Twist.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "指针设备相关的 XTilt: " + props.XTilt.ToString();
            lblMsg.Text += Environment.NewLine;
            lblMsg.Text += "指针设备相关的 YTiltYTilt: " + props.YTilt.ToString();
            lblMsg.Text += Environment.NewLine;

            // 输入设备相关
            // props.HasUsage(uint usagePage, uint usageId)
            // props.GetUsageValue(uint usagePage, uint usageId)
        }

        void rectangle_PointerExited(object sender, PointerRoutedEventArgs e)
        {
            lblMsg.Text += "PointerExited " + e.Pointer.PointerId;
            lblMsg.Text += Environment.NewLine;
        }

        void rectangle_PointerEntered(object sender, PointerRoutedEventArgs e)
        {
            lblMsg.Text += "PointerEntered " + e.Pointer.PointerId;
            lblMsg.Text += Environment.NewLine;
        }
    }
}

5、演示 Tap 相关事件的应用
Input/Touch/Tap.xaml

<Page
    x:Class="XamlDemo.Input.Touch.Tap"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Input.Touch"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <StackPanel Margin="120 0 0 0">

            <Rectangle Name="rectangle" Width="400" Height="100" Fill="Orange" HorizontalAlignment="Left" />

            <TextBlock Name="lblMsg" FontSize="14.667" TextWrapping="Wrap" Margin="0 10 0 0" />

        </StackPanel>
    </Grid>
</Page>

Input/Touch/Tap.xaml.cs

/*
 * 演示 Tap 相关事件的应用
 *
 *
 * TappedRoutedEventArgs - Tap 路由事件的事件参数
 * DoubleTappedRoutedEventArgs - DoubleTap 路由事件的事件参数
 * RightTappedRoutedEventArgs - RightTap 路由事件的事件参数
 *     OriginalSource - 引发此路由事件的对象
 *     Handled - 是否将事件标记为已处理
 *     PointerDeviceType - 指针设备的类型（Touch, Pen, Mouse）
 *     GetPosition(UIElement relativeTo) - 返回当前指针相对于指定元素的位置
 *
 *
 * HoldingRoutedEventArgs - Holding 路由事件的事件参数
 *     OriginalSource - 引发此路由事件的对象
 *     Handled - 是否将事件标记为已处理
 *     PointerDeviceType - 指针设备的类型（Touch, Pen, Mouse）
 *     GetPosition(UIElement relativeTo) - 返回当前指针相对于指定元素的位置
 *     HoldingState - Holding 状态（Windows.UI.Input.HoldingState 枚举）
 *         Started, Completed, Canceled
 */

using System;
using Windows.UI.Xaml.Controls;

namespace XamlDemo.Input.Touch
{
    public sealed partial class Tap : Page
    {
        public Tap()
        {
            this.InitializeComponent();

            rectangle.IsTapEnabled = true; // 默认值就是 true
            rectangle.IsDoubleTapEnabled = true; // 默认值就是 true
            rectangle.IsRightTapEnabled = true; // 默认值就是 true
            rectangle.IsHoldingEnabled = true; // 默认值就是 true

            rectangle.Tapped += rectangle_Tapped;
            rectangle.DoubleTapped += rectangle_DoubleTapped;
            rectangle.RightTapped += rectangle_RightTapped;
            rectangle.Holding += rectangle_Holding;
        }

        void rectangle_Holding(object sender, Windows.UI.Xaml.Input.HoldingRoutedEventArgs e)
        {
            lblMsg.Text += "Holding";
            lblMsg.Text += Environment.NewLine;
        }

        void rectangle_RightTapped(object sender, Windows.UI.Xaml.Input.RightTappedRoutedEventArgs e)
        {
            lblMsg.Text += "RightTapped";
            lblMsg.Text += Environment.NewLine;
        }

        void rectangle_DoubleTapped(object sender, Windows.UI.Xaml.Input.DoubleTappedRoutedEventArgs e)
        {
            lblMsg.Text += "DoubleTapped";
            lblMsg.Text += Environment.NewLine;
        }

        void rectangle_Tapped(object sender, Windows.UI.Xaml.Input.TappedRoutedEventArgs e)
        {
            lblMsg.Text += "Tapped";
            lblMsg.Text += Environment.NewLine;
        }
    }
}

6、关于 AllowDrop, Drop, DragEnter, DragOver, DragLeave
Input/Touch/DragDrop.xaml

<Page
    x:Class="XamlDemo.Input.Touch.DragDrop"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Input.Touch"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <StackPanel Margin="120 0 0 0">

            <TextBlock Name="lblMsg" FontSize="14.667" TextWrapping="Wrap">
                <Run>关于 AllowDrop, Drop, DragEnter, DragOver, DragLeave 等详见：Controls/GridView/DragItem.xaml</Run>
            </TextBlock>

        </StackPanel>
    </Grid>
</Page>

OK
[源码下载]