private static async Task LoadTileImageAsync(Tile tile, TileSource tileSource)
{
var image = await tileSource.LoadImageAsync(tile.XIndex, tile.Y, tile.ZoomLevel).ConfigureAwait(false);
if (image != null)
{
SetTileImageAsync(tile, image);
}
}
private async Task LoadTileImageAsync(TileSource tileSource, Tile tile)
{
tile.Pending = false;
try
{
var imageSource = await tileSource.LoadImageAsync(tile.XIndex, tile.Y, tile.ZoomLevel);
if (imageSource != null)
{
tile.SetImage(imageSource);
}
}
catch (Exception ex)
{
Debug.WriteLine("TileImageLoader: {0}/{1}/{2}: {3}", tile.ZoomLevel, tile.XIndex, tile.Y, ex.Message);
}
}
private async Task LoadTileImageAsync(Tile tile, TileSource tileSource)
{
var tcs = new TaskCompletionSource <object>();
await tile.Image.Dispatcher.RunAsync(CoreDispatcherPriority.Low, async() =>
{
try
{
tile.SetImage(await tileSource.LoadImageAsync(tile.XIndex, tile.Y, tile.ZoomLevel));
tcs.SetResult(null);
}
catch (Exception ex)
{
tcs.SetException(ex);
}
});
await tcs.Task;
}
private static Task LoadTile(Tile tile, TileSource tileSource)
{
return(SetTileImage(tile, () => tileSource.LoadImageAsync(tile.XIndex, tile.Y, tile.ZoomLevel)));
}
private static async Task LoadTileAsync(Tile tile, TileSource tileSource)
{
var image = await tileSource.LoadImageAsync(tile.XIndex, tile.Y, tile.ZoomLevel).ConfigureAwait(false);
await tile.Image.Dispatcher.InvokeAsync(() => tile.SetImage(image));
}
private async Task LoadTileImageAsync(Tile tile, TileSource tileSource)
{
SetTileImage(tile, await tileSource.LoadImageAsync(tile.XIndex, tile.Y, tile.ZoomLevel));
}