ClemensFischer/XAML-Map-Control
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Version 4.10.0: Updated target framework versions. Cleanup of TypeConverters, ImageLoader, MBTileSource.

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This commit is contained in:
ClemensF 2018-08-09 18:21:16 +02:00
parent 6a1653056f
commit acf43d70ea
8 changed files with 109 additions and 81 deletions
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50
MapControl/UWP/ImageLoader.UWP.cs
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@ -35,23 +35,39 @@ namespace MapControl
return imageSource;
}
public static async Task<bool> LoadHttpTileImageAsync(Uri uri, Func<IBuffer, TimeSpan?, Task> tileCallback)
public static async Task<Tuple<IBuffer, TimeSpan?>> LoadHttpBufferAsync(Uri uri)
{
using (var response = await HttpClient.GetAsync(uri))
Tuple<IBuffer, TimeSpan?> result = null;
try
{
if (!response.IsSuccessStatusCode)
using (var response = await HttpClient.GetAsync(uri))
{
Debug.WriteLine("ImageLoader: {0}: {1} {2}", uri, (int)response.StatusCode, response.ReasonPhrase);
}
else if (IsTileAvailable(response.Headers))
{
var buffer = await response.Content.ReadAsBufferAsync();
if (!response.IsSuccessStatusCode)
{
Debug.WriteLine("ImageLoader: {0}: {1} {2}", uri, (int)response.StatusCode, response.ReasonPhrase);
}
else
{
IBuffer buffer = null;
TimeSpan? maxAge = null;
await tileCallback(buffer, response.Headers.CacheControl?.MaxAge);
}
if (IsTileAvailable(response.Headers))
{
buffer = await response.Content.ReadAsBufferAsync();
maxAge = response.Headers.CacheControl?.MaxAge;
}
return response.IsSuccessStatusCode;
result = new Tuple<IBuffer, TimeSpan?>(buffer, maxAge);
}
}
}
catch (Exception ex)
{
Debug.WriteLine("ImageLoader: {0}: {1}", uri, ex.Message);
}
return result;
}
public static async Task<ImageSource> CreateImageSourceAsync(IRandomAccessStream stream)
@ -61,12 +77,14 @@ namespace MapControl
return bitmapImage;
}
private static async Task<InMemoryRandomAccessStream> GetResponseStreamAsync(IHttpContent content)
private static async Task<ImageSource> CreateImageSourceAsync(IHttpContent content)
{
var stream = new InMemoryRandomAccessStream();
await content.WriteToStreamAsync(stream);
stream.Seek(0);
return stream;
using (var stream = new InMemoryRandomAccessStream())
{
await content.WriteToStreamAsync(stream);
stream.Seek(0);
return await CreateImageSourceAsync(stream);
}
}
private static bool IsTileAvailable(HttpResponseHeaderCollection responseHeaders)