<Page    x:Class="Windows10.UI.FullScreen"    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="btnFullScreen" Content="全屏/取消全屏" Click="btnFullScreen_Click" Margin="0 10 0 0" />            <Button Name="btnShowStandardSystemOverlays" Content="在全屏状态下，显示系统 UI，比如标题栏和任务栏" Click="btnShowStandardSystemOverlays_Click" Margin="0 10 0 0" />            <CheckBox Name="chkFullScreenSystemOverlayMode" Content="全屏状态下的，系统边缘手势的响应模式 unchecked:FullScreenSystemOverlayMode.Standard, checked:FullScreenSystemOverlayMode.Minimal" Click="chkFullScreenSystemOverlayMode_Click" Margin="0,10,0,0" />            <CheckBox Name="chkPreferredLaunchWindowingMode" Content="窗口的启动模式 unchecked:ApplicationViewWindowingMode.Auto, unchecked:ApplicationViewWindowingMode.FullScreen" Click="chkPreferredLaunchWindowingMode_Click" Margin="0,10,0,0" />                    </StackPanel>    </Grid></Page>

/* * 演示“窗口全屏”相关知识点 * * ApplicationView - 用于操作窗口以及获取窗口信息 *     GetForCurrentView() - 返回 ApplicationView 实例 */using Windows.System;using Windows.UI.ViewManagement;using Windows.UI.Xaml;using Windows.UI.Xaml.Controls;using Windows.UI.Xaml.Input;using Windows.UI.Xaml.Navigation;namespace Windows10.UI{    public sealed partial class FullScreen : Page    {        private MainPage _rootPage;        public FullScreen()        {            this.InitializeComponent();            this.Loaded += FullScreen_Loaded;        }        private void FullScreen_Loaded(object sender, RoutedEventArgs e)        {            /*             * ApplicationView.PreferredLaunchWindowingMode - 窗口的启动模式             *     Auto - 系统自动决定             *     PreferredLaunchViewSize - 由 ApplicationView.PreferredLaunchViewSize 决定（参见：UI/ScreenSize.xaml）             *     FullScreen - 全屏启动             *             * ApplicationView.GetForCurrentView().FullScreenSystemOverlayMode - 全屏状态下的，系统边缘手势的响应模式             *     Standard - 标准方式。比如鼠标移动到顶端显示标题栏，移动到底端显示任务栏             *     Minimal - 最小方式。比如鼠标移动到顶端显示一个小的临时 UI，移动到底端显示一个小的临时 UI，点击这个临时 UI 时再显示标题栏或任务栏             */            // unchecked:FullScreenSystemOverlayMode.Standard, checked:FullScreenSystemOverlayMode.Minimal            chkFullScreenSystemOverlayMode.IsChecked = ApplicationView.GetForCurrentView().FullScreenSystemOverlayMode == FullScreenSystemOverlayMode.Minimal;            // unchecked:ApplicationViewWindowingMode.Auto, unchecked:ApplicationViewWindowingMode.FullScreen            chkPreferredLaunchWindowingMode.IsChecked = ApplicationView.PreferredLaunchWindowingMode == ApplicationViewWindowingMode.FullScreen;        }        protected override void OnNavigatedTo(NavigationEventArgs e)        {            _rootPage = MainPage.Current;            _rootPage.KeyDown += _rootPage_KeyDown;        }        protected override void OnNavigatedFrom(NavigationEventArgs e)        {            _rootPage.KeyDown -= _rootPage_KeyDown;        }        private void _rootPage_KeyDown(object sender, KeyRoutedEventArgs e)        {            // 判断是否按下了 escape 键            if (e.Key == VirtualKey.Escape)            {                var view = ApplicationView.GetForCurrentView();                if (view.IsFullScreenMode)                {                    // 退出全屏状态                    view.ExitFullScreenMode();                }            }        }        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";                }            }        }        private void btnShowStandardSystemOverlays_Click(object sender, RoutedEventArgs e)        {            ApplicationView view = ApplicationView.GetForCurrentView();            // 在全屏状态下，是否显示系统 UI，比如标题栏和任务栏            view.ShowStandardSystemOverlays();        }        private void chkFullScreenSystemOverlayMode_Click(object sender, RoutedEventArgs e)        {            ApplicationView view = ApplicationView.GetForCurrentView();             view.FullScreenSystemOverlayMode = chkFullScreenSystemOverlayMode.IsChecked.Value ? FullScreenSystemOverlayMode.Minimal : FullScreenSystemOverlayMode.Standard;        }        private void chkPreferredLaunchWindowingMode_Click(object sender, RoutedEventArgs e)        {            ApplicationView.PreferredLaunchWindowingMode = chkPreferredLaunchWindowingMode.IsChecked.Value ? ApplicationViewWindowingMode.FullScreen : ApplicationViewWindowingMode.Auto;        }    }}

<Page    x:Class="Windows10.UI.ScreenSize"    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="btnChangeSize" Content="尝试改变窗口大小" Click="btnChangeSize_Click" Margin="0 10 0 0" />        </StackPanel>    </Grid></Page>

/* * 演示“窗口尺寸”相关知识点 * * ApplicationView - 用于操作窗口以及获取窗口信息 *     GetForCurrentView() - 返回 ApplicationView 实例 */using Windows.Foundation;using Windows.UI.ViewManagement;using Windows.UI.Xaml;using Windows.UI.Xaml.Controls;using Windows.UI.Xaml.Navigation;namespace Windows10.UI{    public sealed partial class ScreenSize : Page    {        public ScreenSize()        {            this.InitializeComponent();            this.Loaded += ScreenSize_Loaded;        }        private void ScreenSize_Loaded(object sender, RoutedEventArgs e)        {            // Window.Current.Bounds - 当前窗口的大小（单位是有效像素，没有特别说明就都是有效像素）            //     注：窗口大小不包括标题栏，标题栏属于系统级 UI            lblMsg.Text = string.Format("window size: {0} * {1}", Window.Current.Bounds.Width, Window.Current.Bounds.Height);            ApplicationView applicationView = ApplicationView.GetForCurrentView();            // SetPreferredMinSize(Size minSize) - 指定窗口允许的最小尺寸            //     最小 width 和最小 height 都不能为零，我这里测试的是最小 width 为 192，最小 height 为 48            applicationView.SetPreferredMinSize(new Size(200, 200));            // PreferredLaunchViewSize - 窗口启动时的初始尺寸            // 若要使 PreferredLaunchViewSize 设置有效，需要将 ApplicationView.PreferredLaunchWindowingMode 设置为 ApplicationViewWindowingMode.PreferredLaunchViewSize            ApplicationView.PreferredLaunchViewSize = new Size(800, 480);            ApplicationView.PreferredLaunchWindowingMode = ApplicationViewWindowingMode.PreferredLaunchViewSize;                        /*             * ApplicationView.PreferredLaunchWindowingMode - 窗口的启动模式             *     Auto - 系统自动调整             *     PreferredLaunchViewSize - 由 ApplicationView.PreferredLaunchViewSize 决定             *     FullScreen - 全屏启动             */        }        protected override void OnNavigatedTo(NavigationEventArgs e)        {            // 窗口尺寸发生变化时触发的事件            Window.Current.SizeChanged += Current_SizeChanged;        }        protected override void OnNavigatedFrom(NavigationEventArgs e)        {            Window.Current.SizeChanged -= Current_SizeChanged;        }        private void Current_SizeChanged(object sender, Windows.UI.Core.WindowSizeChangedEventArgs e)        {            lblMsg.Text = string.Format("window size: {0} * {1}", e.Size.Width, e.Size.Height);        }        private void btnChangeSize_Click(object sender, RoutedEventArgs e)        {            ApplicationView applicationView = ApplicationView.GetForCurrentView();                        Size size = new Size(600, 600);            // TryResizeView(Size value) - 尝试将窗口尺寸设置为指定的大小            bool success = applicationView.TryResizeView(size);            if (success)            {                lblMsg.Text = "尝试修改窗口尺寸成功";            }            else            {                lblMsg.Text = "尝试修改窗口尺寸失败";            }            // 注：怎么修改窗口的显示位置呢？暂时不知道        }    }}