背水一战 Windows 10 (35) - 控件（弹出类）: FlyoutBase, Flyout, MenuFlyout

Page
    x:Class="Windows10.Controls.FlyoutControl.FlyoutBaseDemo"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Windows10.Controls.FlyoutControl"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    Page.Resources>

        
        Flyout x:Key="MyFlyout">
            StackPanel>
                TextBlock Text="我是 Flyout 中的内容" />
            StackPanel>
        Flyout>

    Page.Resources>
    
    Grid Background="Transparent">
        StackPanel Margin="10 0 10 10">

            


            
            Button Name="button1" Margin="5" Content="按我弹出 Flyout">
                Button.Flyout>
                    Flyout x:Name="flyout1" Placement="Right" Opening="flyout1_Opening" Opened="flyout1_Opened" Closed="flyout1_Closed">
                        StackPanel>
                            TextBlock>我是 Flyout 中的内容TextBlock>
                            Button x:Name="button1CloseFlyout" Click="button1CloseFlyout_Click">隐藏 FlyoutButton>
                        StackPanel>
                    Flyout>
                Button.Flyout>
            Button>
            TextBlock Name="lblMsg1" Margin="5" />
            

            
            TextBlock Name="textBlock1" Margin="5" Text="按我弹出 Flyout" Tapped="textBlock1_Tapped" FontSize="18">
                FlyoutBase.AttachedFlyout>
                    Flyout Placement="Right">
                        TextBlock Text="我是 Flyout 中的内容" />
                    Flyout>
                FlyoutBase.AttachedFlyout>
            TextBlock>

            
            
            TextBlock Name="textBlock2" Margin="5" Text="按我弹出 Flyout" Tapped="textBlock2_Tapped" FontSize="18"
                       FlyoutBase.AttachedFlyout="{StaticResource MyFlyout}" />


            
            TextBlock Name="textBlock3" Margin="5" Text="按我弹出 Flyout" Tapped="textBlock3_Tapped" FontSize="18" />


            
            TextBlock Name="textBlock4" Margin="5" Text="按我弹出 Flyout" Tapped="textBlock4_Tapped" FontSize="18" />

        StackPanel>
    Grid>
Page>

/*
 * FlyoutBase（基类） - 弹出框控件基类（继承自 DependencyObject, 请参见 /Controls/BaseControl/DependencyObjectDemo.xaml）
 *     Hide() - 隐藏 Flyout
 *     ShowAt(FrameworkElement targetElement) - 在指定的 FrameworkElement 上显示指定的 Flyout
 *
 *     FlyoutBase.SetAttachedFlyout(FrameworkElement element, FlyoutBase value) - 在指定的 FrameworkElement 上绑定指定的 Flyout
 *     FlyoutBase.GetAttachedFlyout(FrameworkElement element) - 获取指定的 FrameworkElement 上绑定的 Flyout
 *     FlyoutBase.ShowAttachedFlyout(FrameworkElement flyoutOwner) - 在指定的 FrameworkElement 上显示其绑定的 Flyout
 *
 *
 * 注：点击 FlyoutBase 外部的话，FlyoutBase 会自动关闭
 * 
 * 另外，在 uwp 中不再支持 SettingsFlyout 了
 */

using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Input;

namespace Windows10.Controls.FlyoutControl
{
    public sealed partial class FlyoutBaseDemo : Page
    {
        public FlyoutBaseDemo()
        {
            this.InitializeComponent();
        }


        private void flyout1_Opening(object sender, object e)
        {
            lblMsg1.Text = "Flyout 打开中";
        }
        private void flyout1_Opened(object sender, object e)
        {
            lblMsg1.Text = "Flyout 已打开";
        }
        private void flyout1_Closed(object sender, object e)
        {
            lblMsg1.Text = "Flyout 已关闭";
        }
        private void button1CloseFlyout_Click(object sender, RoutedEventArgs e)
        {
            flyout1.Hide();
        }


        private void textBlock1_Tapped(object sender, TappedRoutedEventArgs e)
        {
            FlyoutBase.ShowAttachedFlyout(textBlock1);
        }


        private void textBlock2_Tapped(object sender, TappedRoutedEventArgs e)
        {
            FlyoutBase flyout = FlyoutBase.GetAttachedFlyout(textBlock2);
            flyout.Placement = FlyoutPlacementMode.Right;

            FlyoutBase.ShowAttachedFlyout(textBlock2);
        }


        // 在 CodeBehind 中创建 FlyoutBase 控件后，将其绑定到指定的控件上，并显示
        private void textBlock3_Tapped(object sender, TappedRoutedEventArgs e)
        {
            TextBlock flyoutContent = new TextBlock();
            flyoutContent.Text = "我是 Flyout 中的内容";

            Flyout flyout = new Flyout();
            flyout.Placement = FlyoutPlacementMode.Right;
            flyout.Content = flyoutContent;

            FlyoutBase.SetAttachedFlyout(textBlock3, flyout);
            FlyoutBase.ShowAttachedFlyout(textBlock3);
        }


        // 在 CodeBehind 中创建 FlyoutBase 控件后，在不设置绑定的情况下，使其显示在指定的控件上
        private void textBlock4_Tapped(object sender, TappedRoutedEventArgs e)
        {
            TextBlock flyoutContent = new TextBlock();
            flyoutContent.Text = "我是 Flyout 中的内容";

            Flyout flyout = new Flyout();
            flyout.Placement = FlyoutPlacementMode.Right;
            flyout.Content = flyoutContent;

            flyout.ShowAt(textBlock4);
        }
    }
}

Page
    x:Class="Windows10.Controls.FlyoutControl.FlyoutDemo"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Windows10.Controls.FlyoutControl"
    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="10 0 10 10">

            
            
            
            Button Name="button1" Margin="5" Content="按我弹出 Flyout">
                Button.Flyout>
                    Flyout Placement="Right">
                        StackPanel>
                            TextBlock Text="我是 Flyout 中的内容" Foreground="White" FontSize="24" />
                        StackPanel>
                        Flyout.FlyoutPresenterStyle>
                            Style TargetType="FlyoutPresenter">
                                Setter Property="ScrollViewer.ZoomMode" Value="Enabled"/>
                                Setter Property="Background" Value="Blue"/>
                                Setter Property="BorderBrush" Value="Red"/>
                                Setter Property="BorderThickness" Value="10"/>
                                Setter Property="MinHeight" Value="300"/>
                                Setter Property="MinWidth" Value="300"/>
                            Style>
                        Flyout.FlyoutPresenterStyle>
                    Flyout>
                Button.Flyout>
            Button>

            
            TextBlock Name="textBlock1" Margin="5" Text="按我弹出 Flyout" Tapped="textBlock1_Tapped" FontSize="18" />

        StackPanel>
    Grid>
Page>

/*
 * Flyout - 弹出框控件（继承自 FlyoutBase, 请参见 /Controls/FlyoutControl/FlyoutBaseDemo.xaml）
 *     Content - 获取或设置 Flyout 的内容
 */

using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Input;

namespace Windows10.Controls.FlyoutControl
{
    public sealed partial class FlyoutDemo : Page
    {
        public FlyoutDemo()
        {
            this.InitializeComponent();
        }

        private void textBlock1_Tapped(object sender, TappedRoutedEventArgs e)
        {
            TextBlock flyoutContent = new TextBlock();
            flyoutContent.Text = "我是 Flyout 中的内容";

            Flyout flyout = new Flyout();
            flyout.Placement = FlyoutPlacementMode.Right;
            flyout.Content = flyoutContent;

            flyout.ShowAt(textBlock1);
        }
    }
}

Page
    x:Class="Windows10.Controls.FlyoutControl.MenuFlyoutDemo"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Windows10.Controls.FlyoutControl"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    Page.Resources>
        
        MenuFlyout x:Key="MyMenuFlyout" Placement="Right">
            
            
            
            MenuFlyoutItem Name="menuFlyoutItem1" Text="MenuFlyoutItem" Click="menuFlyoutItem1_Click" />
            MenuFlyoutSeparator/>
            ToggleMenuFlyoutItem Name="toggleMenuFlyoutItem1" Text="ToggleMenuFlyoutItem1" IsChecked="False" Click="toggleMenuFlyoutItem1_Click" />
            ToggleMenuFlyoutItem Name="toggleMenuFlyoutItem2" Text="ToggleMenuFlyoutItem2" IsChecked="True" Click="toggleMenuFlyoutItem2_Click" />

            MenuFlyoutSubItem Text="item">
                MenuFlyoutItem Text="item 1" />
                MenuFlyoutItem Text="item 2" />
                MenuFlyoutSubItem Text="item 3">
                    MenuFlyoutItem Text="item 3 - 1" />
                    MenuFlyoutItem Text="item 3 - 2" />
                MenuFlyoutSubItem>
            MenuFlyoutSubItem>

            
            MenuFlyout.MenuFlyoutPresenterStyle>
                Style TargetType="MenuFlyoutPresenter">
                    Setter Property="BorderBrush" Value="Red" />
                    Setter Property="BorderThickness" Value="5" />
                Style>
            MenuFlyout.MenuFlyoutPresenterStyle>
        MenuFlyout>

    Page.Resources>

    Grid Background="Transparent">
        StackPanel Margin="10 0 10 10">

            TextBlock Name="lblMsg" Margin="5" />

            Button Name="button1" Margin="5" Content="Options" Flyout="{StaticResource MyMenuFlyout}" />

            TextBlock Name="textBlock1" Margin="5 20 5 5" Text="按我弹出 Flyout" Tapped="textBlock1_Tapped" FontSize="18" />
            
        StackPanel>
    Grid>
Page>

/*
 * MenuFlyout - 菜单弹出框控件（继承自 FlyoutBase, 请参见 /Controls/FlyoutControl/FlyoutBaseDemo.xaml）
 *     ShowAt(UIElement targetElement, Point point) - 在指定的 UIElement 的指定位置（point 是相对于 targetElement 的位置）显示 MenuFlyout 控件
 */

using Windows.Foundation;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace Windows10.Controls.FlyoutControl
{
    public sealed partial class MenuFlyoutDemo : Page
    {
        public MenuFlyoutDemo()
        {
            this.InitializeComponent();
        }

        private void MenuFlyoutItem_Click(object sender, RoutedEventArgs e)
        {
            lblMsg.Text = "MenuFlyoutItem 被 click 了";
        }

        private void menuFlyoutItem1_Click(object sender, RoutedEventArgs e)
        {
            lblMsg.Text = "menuFlyoutItem1 被 click 了";
        }

        private void toggleMenuFlyoutItem1_Click(object sender, RoutedEventArgs e)
        {
            lblMsg.Text = $"toggleMenuFlyoutItem1 被 click 了, IsChecked:{toggleMenuFlyoutItem1.IsChecked}";
        }

        private void toggleMenuFlyoutItem2_Click(object sender, RoutedEventArgs e)
        {
            lblMsg.Text = $"toggleMenuFlyoutItem2 被 click 了, IsChecked:{toggleMenuFlyoutItem2.IsChecked}";
        }


        private void textBlock1_Tapped(object sender, Windows.UI.Xaml.Input.TappedRoutedEventArgs e)
        {
            MenuFlyout menuFlyout = this.Resources["MyMenuFlyout"] as MenuFlyout;

            // 对于基类的 ShowAt(FrameworkElement targetElement) 方法当然是支持的
            // menuFlyout.ShowAt(textBlock1);

            // 在 MenuFlyout 中重载了 ShowAt() 方法，即 ShowAt(UIElement targetElement, Point point)
            // 其中 point 代表 MenuFlyout 相对于 targetElement 左上角的显示位置（此时 MenuFlyout 的 Placement 参数就无效了）
            menuFlyout.ShowAt(textBlock1, new Point(10, 10));
        }
    }
}