Silverlight自动根据屏幕分辨率进行布局

xaml:

<UserControl x:Class="SLCenterLayout.MainPage"

     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

     mc:Ignorable="d"

     d:DesignHeight="300" d:DesignWidth="400" x:Name="ControlMainPage" >

     <UserControl.Resources>

         

     </UserControl.Resources>

     <UserControl.RenderTransform>

         <CompositeTransform />

     </UserControl.RenderTransform>



     <ScrollViewer x:Name="LayoutRoot" MaxWidth="1300" MaxHeight="685"VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto" Background="Black">

      <Grid HorizontalAlignment="Center">

             <Grid.RowDefinitions>

                 <RowDefinition />

                 <RowDefinition />

             </Grid.RowDefinitions>

             <Image Source="2.jpg"/>

             <TextBlock Grid.Row="1" FontSize="30" Foreground="White">小米手机快发货啊</TextBlock>

         </Grid>

     </ScrollViewer>

 </UserControl>
View Code

xaml.cs:

using System;

using System.Windows.Controls;

using System.Windows.Media;



namespace SLCenterLayout

 {

     public partial class MainPage : UserControl

     {

         //标准显示宽度

        private const double RECOMMAND_SCREEN_WIDTH = 1300;



         //标准显示高度

        private const double RECOMMAND_SCREEN_HEIGHT = 685;



         public MainPage()

         {

             InitializeComponent();

             App.Current.Host.Content.Resized+=new EventHandler(Content_Resized);

         }



         private void ChangePageRenderSize(double currentWidth, double currentHeight)

         {

             if (currentWidth > RECOMMAND_SCREEN_WIDTH || currentHeight > RECOMMAND_SCREEN_HEIGHT)

             {

                 CompositeTransform ctf = new CompositeTransform();

                 ctf.ScaleX = currentWidth / RECOMMAND_SCREEN_WIDTH;

                 ctf.ScaleY = currentHeight / RECOMMAND_SCREEN_HEIGHT;



                 //沿着中心点进行缩放,这样的话,在多次缩放后,不会偏移原来位置

                ctf.CenterX = currentWidth / 2;

                 ctf.CenterY = currentHeight / 2;

                 ControlMainPage.RenderTransform = ctf;

             }

         }



         private void Content_Resized(object sender, EventArgs e)

         {

             ChangePageRenderSize(ControlMainPage.ActualWidth, ControlMainPage.ActualHeight);

         }



     }
View Code

说明:Resized事件:因为我们在对页面缩放的时候,很重要的一对数据就是当前页面的宽度和高度,而这对数据,我们可以在Resized事件里面获得
MSDN关于Resized事件的阐述是:

  此事件将在开始加载 Silverlight 插件过程中发生。在发生该事件后,ActualHeight 或 ActualWidth 的值是可靠的。在这一时刻之前,ActualHeight 或 ActualWidth 的值不可靠。

 

http://blog.csdn.net/hemingliang1987/article/details/8646669

你可能感兴趣的:(silverlight)