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Update ImageLoader.cs

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ClemensFischer 2025-08-21 21:48:08 +02:00
parent 178cec8e66
commit 6f82f8012a
1 changed files with 23 additions and 23 deletions
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46
MapControl/Shared/ImageLoader.cs
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@ -2,8 +2,8 @@
using System;
using System.IO;
using System.Net.Http;
using System.Threading.Tasks;
using System.Threading;
using System.Threading.Tasks;
#if WPF
using System.Windows.Media;
#elif UWP
@ -105,16 +105,7 @@ namespace MapControl
{
if (responseMessage.IsSuccessStatusCode)
{
byte[] buffer;
if (progress != null && responseMessage.Content.Headers.ContentLength.HasValue)
{
buffer = await responseMessage.Content.ReadAsByteArrayAsync(progress, cancellationToken).ConfigureAwait(false);
}
else
{
buffer = await responseMessage.Content.ReadAsByteArrayAsync(cancellationToken).ConfigureAwait(false);
}
byte[] buffer = await responseMessage.Content.ReadAsByteArrayAsync(progress, cancellationToken).ConfigureAwait(false);
response = new HttpResponse(buffer, responseMessage.Headers.CacheControl?.MaxAge);
}
@ -148,27 +139,36 @@ namespace MapControl
{
public static async Task<byte[]> ReadAsByteArrayAsync(this HttpContent content, IProgress<double> progress, CancellationToken cancellationToken)
{
var length = (int)content.Headers.ContentLength.Value;
var buffer = new byte[length];
byte[] buffer;
using (var stream = await content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false))
if (progress != null && content.Headers.ContentLength.HasValue)
{
int offset = 0;
int read;
var length = (int)content.Headers.ContentLength.Value;
buffer = new byte[length];
while (offset < length &&
(read = await stream.ReadAsync(buffer, offset, length - offset, cancellationToken).ConfigureAwait(false)) > 0)
using (var stream = await content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false))
{
cancellationToken.ThrowIfCancellationRequested();
int offset = 0;
int read;
offset += read;
if (offset < length) // 1.0 reported by caller
while (offset < length &&
(read = await stream.ReadAsync(buffer, offset, length - offset, cancellationToken).ConfigureAwait(false)) > 0)
{
progress.Report((double)offset / length);
cancellationToken.ThrowIfCancellationRequested();
offset += read;
if (offset < length) // 1.0 reported by caller
{
progress.Report((double)offset / length);
}
}
}
}
else
{
buffer = await content.ReadAsByteArrayAsync(cancellationToken).ConfigureAwait(false);
}
return buffer;
}