Windows Phone 7.8 WideTile圖像不起作用

我已經嘗試了下面的兩種解決方案，他們都有相同的結果。該瓷磚已創建，但圖像未顯示。我可以設置標題和其他屬性，但是當我使用此解決方案時，它不起作用。我已經驗證了圖像路徑並且它在構建中。有任何想法嗎？Windows Phone 7.8 WideTile圖像不起作用

public static void UpdateFlipTile(
      Uri wideBackgroundImage, 
      Uri wideBackBackgroundImage) 
{ 
    if (IsTargetedVersion) 
    { 
    // Get the new FlipTileData type. 
    Type flipTileDataType = Type.GetType("Microsoft.Phone.Shell.FlipTileData, Microsoft.Phone"); 

    // Get the ShellTile type so we can call the new version of "Update" that takes the new Tile templates. 
    Type shellTileType = Type.GetType("Microsoft.Phone.Shell.ShellTile, Microsoft.Phone"); 

    // Loop through any existing Tiles that are pinned to Start. 
    foreach (var tileToUpdate in ShellTile.ActiveTiles) 
    { 
    // Look for a match based on the Tile's NavigationUri (tileId). 

     // Get the constructor for the new FlipTileData class and assign it to our variable to hold the Tile properties. 
     var UpdateTileData = flipTileDataType.GetConstructor(new Type[] { }).Invoke(null); 

     // Set the properties. 
     SetProperty(UpdateTileData, "WideBackgroundImage", wideBackgroundImage); 
     SetProperty(UpdateTileData, "WideBackBackgroundImage", wideBackBackgroundImage); 


     // Invoke the new version of ShellTile.Update. 
     shellTileType.GetMethod("Update").Invoke(tileToUpdate, new Object[] { UpdateTileData }); 

      break; 

     } 
    } 

} 

private static void SetProperty(object instance, string name, object value) 
{ 
    var setMethod = instance.GetType().GetProperty(name).GetSetMethod(); 
    setMethod.Invoke(instance, new object[] { value }); 
}

而且我也試過這個解決方案

if (Environment.OSVersion.Version >= new Version(7, 10, 8858)) 
{ 
    var tile = ShellTile.ActiveTiles.First(); 
    var flipTileData = new FlipTileData 
      { 
       BackgroundImage = new Uri("/Icons/MediumLogo.png", UriKind.RelativeOrAbsolute), 
       WideBackgroundImage = new Uri("/Icons/WideLogo.png", UriKind.RelativeOrAbsolute), 
      }; 
    tile.Update(flipTileData); 
}

來源

2013-04-17 Anthony Russell