WP7固定到开始屏幕

StandardTileData secondaryTile = new StandardTileData
{
Title = "title",
BackgroundImage = new Uri("tile.png", UriKind.Relative),
BackTitle = "BackTitle",
BackBackgroundImage = new Uri("Background.png", UriKind.Relative),
Count = 0,
BackContent = ""
};
ShellTile.Create(new Uri("/MainPage.xaml", UriKind.Relative), secondaryTile);