WPF 过渡效果

http://blog.csdn.net/lhx527099095/article/details/8005095


先上张效果图看看 如果不如您的法眼 可以移步了 或者有更好的效果 可以留言给我 



废话不多说 直接贴代码 一个usercontrol

[csharp] view plaincopy
  1. <UserControl x:Class="LoadingMask_Demo.LoadingWait"  
  2.              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"  
  3.              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"  
  4.              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"   
  5.              IsVisibleChanged="HandleVisibleChanged">  
  6.     <UserControl.Background>  
  7.         <SolidColorBrush Color="Black" Opacity="0.2"  />  
  8.     </UserControl.Background>  
  9.     <UserControl.Resources>  
  10.         <SolidColorBrush Color="#FF007BE5" x:Key="CirclesColor" />  
  11.         <!--<SolidColorBrush Color="Black" x:Key="BackgroundColor" Opacity=".20" />-->  
  12.     </UserControl.Resources>  
  13.   
  14.     <Viewbox Width="100" Height="100"    
  15.             HorizontalAlignment="Center"    
  16.             VerticalAlignment="Center">  
  17.         <Grid x:Name="LayoutRoot"     
  18.                 Background="Transparent"    
  19.                 ToolTip="Please wait...."    
  20.                 HorizontalAlignment="Center"    
  21.                 VerticalAlignment="Center">  
  22.             <TextBlock Text="Loading..."  HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="14" Foreground="#FFE3953D" FontWeight="Bold" />  
  23.             <Canvas RenderTransformOrigin="0.5,0.5"    
  24.                     HorizontalAlignment="Center"    
  25.                     VerticalAlignment="Center" Width="120"    
  26.                     Height="120" Loaded="HandleLoaded"    
  27.                     Unloaded="HandleUnloaded"  >  
  28.                 <Ellipse x:Name="C0" Width="20" Height="20"    
  29.                          Canvas.Left="0"    
  30.                          Canvas.Top="0" Stretch="Fill"    
  31.                          Fill="{StaticResource CirclesColor}" Opacity="1.0"/>  
  32.                 <Ellipse x:Name="C1" Width="20" Height="20"    
  33.                          Canvas.Left="0"    
  34.                          Canvas.Top="0" Stretch="Fill"    
  35.                          Fill="{StaticResource CirclesColor}" Opacity="0.9"/>  
  36.                 <Ellipse x:Name="C2" Width="20" Height="20"    
  37.                          Canvas.Left="0"    
  38.                          Canvas.Top="0" Stretch="Fill"    
  39.                          Fill="{StaticResource CirclesColor}" Opacity="0.8"/>  
  40.                 <Ellipse x:Name="C3" Width="20" Height="20"    
  41.                          Canvas.Left="0"    
  42.                          Canvas.Top="0" Stretch="Fill"    
  43.                          Fill="{StaticResource CirclesColor}" Opacity="0.7"/>  
  44.                 <Ellipse x:Name="C4" Width="20" Height="20"    
  45.                          Canvas.Left="0"    
  46.                          Canvas.Top="0" Stretch="Fill"    
  47.                          Fill="{StaticResource CirclesColor}" Opacity="0.6"/>  
  48.                 <Ellipse x:Name="C5" Width="20" Height="20"    
  49.                          Canvas.Left="0"    
  50.                          Canvas.Top="0" Stretch="Fill"    
  51.                          Fill="{StaticResource CirclesColor}" Opacity="0.5"/>  
  52.                 <Ellipse x:Name="C6" Width="20" Height="20"    
  53.                          Canvas.Left="0"    
  54.                          Canvas.Top="0" Stretch="Fill"    
  55.                          Fill="{StaticResource CirclesColor}" Opacity="0.4"/>  
  56.                 <Ellipse x:Name="C7" Width="20" Height="20"    
  57.                          Canvas.Left="0"    
  58.                          Canvas.Top="0" Stretch="Fill"    
  59.                          Fill="{StaticResource CirclesColor}" Opacity="0.3"/>  
  60.                 <Ellipse x:Name="C8" Width="20" Height="20"    
  61.                          Canvas.Left="0"    
  62.                          Canvas.Top="0" Stretch="Fill"    
  63.                          Fill="{StaticResource CirclesColor}" Opacity="0.2"/>  
  64.                 <Canvas.RenderTransform>  
  65.                     <RotateTransform x:Name="SpinnerRotate"    
  66.                          Angle="0" />  
  67.                 </Canvas.RenderTransform>  
  68.             </Canvas>  
  69.         </Grid>  
  70.     </Viewbox>  
  71. </UserControl>  
  72.   
  73.   
  74. 后台代码：  
  75.   
  76.   
  77. using System;  
  78. using System.Collections.Generic;  
  79. using System.Linq;  
  80. using System.Text;  
  81. using System.Windows;  
  82. using System.Windows.Controls;  
  83. using System.Windows.Data;  
  84. using System.Windows.Documents;  
  85. using System.Windows.Input;  
  86. using System.Windows.Media;  
  87. using System.Windows.Media.Imaging;  
  88. using System.Windows.Navigation;  
  89. using System.Windows.Shapes;  
  90. using System.Windows.Threading;  
  91.   
  92. namespace LoadingMask_Demo  
  93. {  
  94.     /// <summary>  
  95.     /// Interaction logic for LoadingWait.xaml  
  96.     /// </summary>  
  97.     public partial class LoadingWait : UserControl  
  98.     {  
  99.         #region Data  
  100.         private readonly DispatcherTimer animationTimer;  
  101.         #endregion  
  102.  
  103.         #region Constructor  
  104.         public LoadingWait()  
  105.         {  
  106.             InitializeComponent();  
  107.   
  108.             animationTimer = new DispatcherTimer(  
  109.                 DispatcherPriority.ContextIdle, Dispatcher);  
  110.             animationTimer.Interval = new TimeSpan(0, 0, 0, 0, 90);  
  111.         }  
  112.         #endregion  
  113.  
  114.         #region Private Methods  
  115.         private void Start()  
  116.         {  
  117.             animationTimer.Tick += HandleAnimationTick;  
  118.             animationTimer.Start();  
  119.         }  
  120.   
  121.         private void Stop()  
  122.         {  
  123.             animationTimer.Stop();  
  124.             animationTimer.Tick -= HandleAnimationTick;  
  125.         }  
  126.   
  127.         private void HandleAnimationTick(object sender, EventArgs e)  
  128.         {  
  129.             SpinnerRotate.Angle = (SpinnerRotate.Angle + 36) % 360;  
  130.         }  
  131.   
  132.         private void HandleLoaded(object sender, RoutedEventArgs e)  
  133.         {  
  134.             const double offset = Math.PI;  
  135.             const double step = Math.PI * 2 / 10.0;  
  136.   
  137.             SetPosition(C0, offset, 0.0, step);  
  138.             SetPosition(C1, offset, 1.0, step);  
  139.             SetPosition(C2, offset, 2.0, step);  
  140.             SetPosition(C3, offset, 3.0, step);  
  141.             SetPosition(C4, offset, 4.0, step);  
  142.             SetPosition(C5, offset, 5.0, step);  
  143.             SetPosition(C6, offset, 6.0, step);  
  144.             SetPosition(C7, offset, 7.0, step);  
  145.             SetPosition(C8, offset, 8.0, step);  
  146.         }  
  147.   
  148.         private void SetPosition(Ellipse ellipse, double offset,  
  149.             double posOffSet, double step)  
  150.         {  
  151.             ellipse.SetValue(Canvas.LeftProperty, 50.0  
  152.                 + Math.Sin(offset + posOffSet * step) * 50.0);  
  153.   
  154.             ellipse.SetValue(Canvas.TopProperty, 50  
  155.                 + Math.Cos(offset + posOffSet * step) * 50.0);  
  156.         }  
  157.   
  158.         private void HandleUnloaded(object sender, RoutedEventArgs e)  
  159.         {  
  160.             Stop();  
  161.         }  
  162.   
  163.         private void HandleVisibleChanged(object sender,  
  164.             DependencyPropertyChangedEventArgs e)  
  165.         {  
  166.             bool isVisible = (bool)e.NewValue;  
  167.   
  168.             if (isVisible)  
  169.                 Start();  
  170.             else  
  171.                 Stop();  
  172.         }  
  173.         #endregion    
  174.     }  
  175. }  

调用的代码也贴出来吧


[csharp] view plaincopy
  1. <Window x:Class="LoadingMask_Demo.MainWindow"  
  2.         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"  
  3.         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"  
  4.         Title="MainWindow" Height="350" Width="525"  
  5.         xmlns:local="clr-namespace:LoadingMask_Demo"  
  6.         >  
  7.     <DockPanel>  
  8.         <StackPanel Orientation="Horizontal" DockPanel.Dock="Top">  
  9.             <Button  Content="show" Width="70" Height="30" Click="ShowButton_Click" />  
  10.             <Button  Content="hide" Width="70" Height="30" Click="HideButton_Click"/>  
  11.         </StackPanel>  
  12.           
  13.         <Grid Background="#FF484848" DockPanel.Dock="Bottom">  
  14.             <TextBlock Text="asdfasdfasdf" Foreground="White"/>  
  15.             <local:LoadingWait x:Name="_loading"  Visibility="Collapsed"/>  
  16.         </Grid>  
  17.     </DockPanel>  
  18. </Window>  
  19.   
  20.   
  21. 后台代码  
  22.   
  23.   
  24. using System;  
  25. using System.Collections.Generic;  
  26. using System.Linq;  
  27. using System.Text;  
  28. using System.Windows;  
  29. using System.Windows.Controls;  
  30. using System.Windows.Data;  
  31. using System.Windows.Documents;  
  32. using System.Windows.Input;  
  33. using System.Windows.Media;  
  34. using System.Windows.Media.Imaging;  
  35. using System.Windows.Navigation;  
  36. using System.Windows.Shapes;  
  37.   
  38. namespace LoadingMask_Demo  
  39. {  
  40.     /// <summary>  
  41.     /// Interaction logic for MainWindow.xaml  
  42.     /// </summary>  
  43.     public partial class MainWindow : Window  
  44.     {  
  45.         public MainWindow()  
  46.         {  
  47.             InitializeComponent();  
  48.         }  
  49.   
  50.         private void ShowButton_Click(object sender, RoutedEventArgs e)  
  51.         {  
  52.             this._loading.Visibility = Visibility.Visible;  
  53.         }  
  54.   
  55.         private void HideButton_Click(object sender, RoutedEventArgs e)  
  56.         {  
  57.             this._loading.Visibility = Visibility.Collapsed;  
  58.         }  
  59.   
  60.     }  
  61. }  

posted on 2013-12-19 18:08  swarb  阅读(305)  评论(0)  编辑  收藏  举报