查看圖像中的gif圖像UI控件windows phone 7

Question

我想在UI圖像控件中顯示gif圖像。

我有Image image1;

image1.source = new BitmapImage（new Uri（link，UriKind.Absolute））;

但Uri中的鏈接是.gif圖像。

我讀過這個：imagetool但是我仍然不知道如何使用庫。我確實下載了庫並添加了引用，然後從中卡住，我想在代碼中設置源代碼。 你能幫忙解釋一下嗎？

我的代碼目前是這樣的：

<UserControl.Resources> 
    <imagetools:ImageConverter x:Key="ImageConverter" /> 
</UserControl.Resources> 

<Grid x:Name="LayoutRoot" Background="Transparent"> 
    <Grid HorizontalAlignment="Right" Width="69"> 
     <Border BorderBrush="White" BorderThickness="3" CornerRadius="7" Background="Black"> 
      <Image Width="69" Height="69" Name="canvasImage" Stretch="UniformToFill" HorizontalAlignment="Center" VerticalAlignment="Center" ImageFailed="canvasImage_ImageFailed" /> 
     </Border> 
     <Border BorderBrush="White" BorderThickness="3" CornerRadius="7" Background="Black"> 
      <imagetools:AnimatedImage Name="canvasGifImage" Width="69" Height="69" Stretch="UniformToFill" HorizontalAlignment="Center" VerticalAlignment="Center" /> 
     </Border> 
    </Grid> 
</Grid> 

 In my MainPage.xaml.cs, because I don't know whether it is an png/jpg or a gif, so I have it try to load png/jpg first, if failed then try load gif in the imagetools control name canvasGifImage: 

     private void DisplayImage(int index, string link) 
    { 
     try 
     { 
      control1.canvasImage.Source = new BitmapImage(new Uri(link, UriKind.Absolute)); 
     } 
     catch //if fail to load image as normal, do this 
     { 
      //but I dont know how to set Source for the canvasGifImage, help me here: 

      control1.canvasGifImage.Source = *new BitmapImage(new Uri(link, UriKind.Absolute));* 

     } 
    } 

Answer 1

更換使用的ManualResetEvent的異步代碼。

using (var resetEvent = new ManualResetEvent(false)) 
{ 
    ImageTools.IO.Decoders.AddDecoder<GifDecoder>(); 
    var extendedImage = new ExtendedImage(); 
    extendedImage.LoadingCompleted += (s, e) => resetEvent.Set(); 
    extendedImage.LoadingFailed += (s, e) => resetEvent.Set(); 
    extendedImage.SetSource(gifStream); 
    resetEvent.WaitOne(TimeSpan.FromSeconds(5)); 

    // Check for timeout or error 

    var enc = new JpegEncoder(); 
    var jpegStream = new MemoryStream(); 
    enc.Encode(extendedImage, jpegStream); 
    ... 

}