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UI: 标题栏

TitleBarDemo.xaml

<Page    x:Class="Windows10.UI.TitleBarDemo"    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"    xmlns:local="using:Windows10.UI"    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">            <TextBlock Name="lblMsg" Margin="0 10 0 0" />            <Button Name="btnTitle" Content="改变标题" Click="btnTitle_Click" Margin="0 10 0 0" />            <Button Name="btnColor" Content="改变颜色" Click="btnColor_Click" Margin="0 10 0 0" />            <Button Name="btnBack" Content="显示/隐藏返回按钮" Click="btnBack_Click" Margin="0 10 0 0" />            <Button Name="btnHidden" Content="显示/隐藏标题栏" Click="btnHidden_Click" Margin="0 10 0 0" />            <Button Name="btnFullScreen" Content="全屏/取消全屏" Click="btnFullScreen_Click" Margin="0 10 0 0" />        </StackPanel>    </Grid></Page>


TitleBarDemo.xaml.cs

/* * 演示 TitleBar 相关知识点 * * 通过 ApplicationView.GetForCurrentView().TitleBar 获取当前的 ApplicationViewTitleBar * 通过 CoreApplication.GetCurrentView().TitleBar 获取当前的 CoreApplicationViewTitleBar * * 注:手工测量 TitleBar 高度为 32 像素 */using System;using Windows.ApplicationModel.Core;using Windows.UI;using Windows.UI.Core;using Windows.UI.ViewManagement;using Windows.UI.Xaml;using Windows.UI.Xaml.Controls;namespace Windows10.UI{    public sealed partial class TitleBarDemo : Page    {        public TitleBarDemo()        {            this.InitializeComponent();            this.Loaded += TitleBarDemo_Loaded;        }        private void TitleBarDemo_Loaded(object sender, RoutedEventArgs e)        {        }        // 改变 Title        private void btnTitle_Click(object sender, RoutedEventArgs e)        {            // 改变左上角 Title 的显示内容            ApplicationView.GetForCurrentView().Title = $"My Title Bar({new Random().Next(1000, 10000).ToString()})";        }        // 改变 TitleBar 上的相关颜色        private void btnColor_Click(object sender, RoutedEventArgs e)        {            // 获取当前的 ApplicationViewTitleBar            ApplicationViewTitleBar titleBar = ApplicationView.GetForCurrentView().TitleBar;            if (titleBar.BackgroundColor != Colors.Orange)            {                // 背景色                titleBar.BackgroundColor = Colors.Orange;                // 前景色                titleBar.ForegroundColor = Colors.White;                // 窗口为非活动状态时的背景色(活动状态就是焦点在窗口上,非活动状态就是焦点不在窗口上)                titleBar.InactiveBackgroundColor = Colors.Yellow;                // 窗口为非活动状态时的前景色                titleBar.InactiveForegroundColor = Colors.Gray;                // TitleBar 上的按钮的背景色(按钮包括:最小化按钮,最大化按钮,关闭按钮,返回按钮)                titleBar.ButtonBackgroundColor = Colors.Orange;                // TitleBar 上的按钮的鼠标经过的背景色                titleBar.ButtonHoverBackgroundColor = Colors.Blue;                // TitleBar 上的按钮的鼠标按下的背景色                titleBar.ButtonPressedBackgroundColor = Colors.Green;                // TitleBar 上的按钮的非活动状态的背景色                titleBar.ButtonInactiveBackgroundColor = Colors.Yellow;                // TitleBar 上的按钮的前景色                titleBar.ButtonForegroundColor = Colors.White;                // TitleBar 上的按钮的鼠标经过的前景色                titleBar.ButtonHoverForegroundColor = Colors.Red;                // TitleBar 上的按钮的鼠标按下的前景色                titleBar.ButtonPressedForegroundColor = Colors.Purple;                // TitleBar 上的按钮的非活动状态的前景色                titleBar.ButtonInactiveForegroundColor = Colors.Gray;            }            else            {                titleBar.BackgroundColor = null;                titleBar.ForegroundColor = null;                titleBar.InactiveBackgroundColor = null;                titleBar.InactiveForegroundColor = null;                titleBar.ButtonBackgroundColor = null;                titleBar.ButtonHoverBackgroundColor = null;                titleBar.ButtonPressedBackgroundColor = null;                titleBar.ButtonInactiveBackgroundColor = null;                titleBar.ButtonForegroundColor = null;                titleBar.ButtonHoverForegroundColor = null;                titleBar.ButtonPressedForegroundColor = null;                titleBar.ButtonInactiveForegroundColor = null;            }        }        // 显示或隐藏 TitleBar 左上角的返回按钮        private void btnBack_Click(object sender, RoutedEventArgs e)        {            // 当前 TitleBar 左上角的返回按钮是隐藏状态            if (SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility == AppViewBackButtonVisibility.Collapsed)            {                // 显示 TitleBar 左上角的返回按钮                SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;                // 监听 TitleBar 左上角的返回按钮的点击事件                SystemNavigationManager.GetForCurrentView().BackRequested += TitleBarDemo_BackRequested;            }            else            {                SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;                SystemNavigationManager.GetForCurrentView().BackRequested -= TitleBarDemo_BackRequested;            }        }        // 处理 TitleBar 左上角的返回按钮的点击事件        private void TitleBarDemo_BackRequested(object sender, BackRequestedEventArgs e)        {            if (MainPage.Current.Container.CanGoBack)                MainPage.Current.Container.GoBack();        }        // 显示或隐藏 TitleBar        private void btnHidden_Click(object sender, RoutedEventArgs e)        {            // 切换 TitleBar 的显示/隐藏状态            // 注:TitleBar 隐藏时,仍会显示最小化按钮、最大化按钮、关闭按钮            CoreApplication.GetCurrentView().TitleBar.ExtendViewIntoTitleBar ^= true;            /*             * 如果需要自定义 TitleBar 的话,就隐藏它,然后自定义一个自己的即可             * 要注意 TitleBar 的 Height, SystemOverlayLeftInset, SystemOverlayRightInset             * 要注意如果收到 CoreApplicationViewTitleBar.LayoutMetricsChanged 事件,则 Height, SystemOverlayLeftInset, SystemOverlayRightInset 的值可能发生了变化             * 要注意窗口大小发生变化时的处理             */            CoreApplicationViewTitleBar titleBar = CoreApplication.GetCurrentView().TitleBar;            // Height - TitleBar 的高度            // SystemOverlayLeftInset - TitleBar 浮层左侧的间隔,在这个间隔部分不要放置自定义内容            // SystemOverlayRightInset - TitleBar 浮层右侧的间隔,在这个间隔部分不要放置自定义内容(右侧间隔部分是用于放置最小化按钮,最大化按钮,关闭按钮的。经过测试这个间隔明显多出来一些,也许是预留给其他按钮的)            lblMsg.Text = $"titleBarHeight: {titleBar.Height}, titleBarLeftInset: {titleBar.SystemOverlayLeftInset}, titleBarRightInset: {titleBar.SystemOverlayRightInset}";        }                // 进入全屏模式,退出全屏模式        private void btnFullScreen_Click(object sender, RoutedEventArgs e)        {            ApplicationView view = ApplicationView.GetForCurrentView();            // 判断当前是否是全屏模式            if (view.IsFullScreenMode)            {                // 退出全屏模式                view.ExitFullScreenMode();                lblMsg.Text = "退出全屏模式";            }            else            {                // 尝试进入全屏模式                bool isSuccess = view.TryEnterFullScreenMode();                if (isSuccess)                {                    lblMsg.Text = "进入全屏模式";                }                else                {                    lblMsg.Text = "尝试进入全屏模式失败";                }            }            // 注意,进入全屏模式后,TitleBar 会消失,鼠标移动到顶部,则 TitleBar 会再次出现(当然这个行为的具体表现取决于 FullScreenSystemOverlayMode,参见 FullScreen.xaml)            CoreApplicationViewTitleBar titleBar = CoreApplication.GetCurrentView().TitleBar;            // TitleBar 是否是可见状态            bool titleBarIsVisible = titleBar.IsVisible;             // TitleBar 的可见性发生变化时触发的事件            titleBar.IsVisibleChanged += delegate { };        }    }}

UI: 标题栏