private async Task <bool> DownloadTileImageAsync(Tile tile, Uri uri, string cacheKey)
{
var success = false;
try
{
using (var response = await TileSource.HttpClient.GetAsync(uri))
{
success = response.IsSuccessStatusCode;
if (!success)
{
Debug.WriteLine("TileImageLoader: {0}: {1} {2}", uri, (int)response.StatusCode, response.ReasonPhrase);
}
else if (TileSource.TileAvailable(response.Headers))
{
var buffer = await response.Content.ReadAsBufferAsync();
await SetTileImageAsync(tile, buffer); // create BitmapImage before caching
await Cache.SetAsync(cacheKey, buffer, GetExpiration(response));
}
}
}
catch (Exception ex)
{
Debug.WriteLine("TileImageLoader: {0}: {1}", uri, ex.Message);
}
return(success);
}
private async Task <bool> DownloadTileImageAsync(Tile tile, Uri uri, string cacheKey)
{
var success = false;
try
{
using (var response = await TileSource.HttpClient.GetAsync(uri))
{
success = response.IsSuccessStatusCode;
if (!success)
{
Debug.WriteLine("TileImageLoader: {0}: {1} {2}", uri, (int)response.StatusCode, response.ReasonPhrase);
}
else if (TileSource.TileAvailable(response.Headers))
{
using (var stream = new MemoryStream())
{
await response.Content.CopyToAsync(stream);
stream.Seek(0, SeekOrigin.Begin);
await SetTileImageAsync(tile, stream); // create BitmapFrame before caching
SetCachedImage(cacheKey, stream, GetExpiration(response));
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine("TileImageLoader: {0}: {1}", uri, ex.Message);
}
return(success);
}
