private void ProcessResponse(Stream stream)
{
try
{
var fileService = MvxFileStoreHelper.SafeGetFileStore();
var tempFilePath = this.DownloadPath + ".tmp";
fileService.WriteFile(
tempFilePath,
(fileStream) =>
{
var buffer = new byte[4 * 1024];
int count;
while ((count = stream.Read(buffer, 0, buffer.Length)) > 0)
{
fileStream.Write(buffer, 0, count);
}
});
fileService.TryMove(tempFilePath, this.DownloadPath, true);
}
catch (Exception exception)
{
this.FireDownloadFailed(exception);
return;
}
this.FireDownloadComplete();
}
private void HandleSuccess(Task <Stream> result)
{
try
{
var fileService = MvxFileStoreHelper.SafeGetFileStore();
var tempFilePath = DownloadPath + ".tmp";
using (result.Result)
{
fileService.WriteFile(tempFilePath,
(fileStream) =>
{
result.Result.CopyTo(fileStream);
});
}
fileService.TryMove(tempFilePath, DownloadPath, true);
}
catch (Exception exception)
{
FireDownloadFailed(exception);
return;
}
FireDownloadComplete();
}
public MvxDynamicCompressedBitmapHelper()
{
if (!_isCacheInitialized)
{
var fileService = MvxFileStoreHelper.SafeGetFileStore();
fileService.EnsureFolderExists(PicCacheDir);
// Remove old cached files
var cacheFiles = fileService.GetFilesIn(PicCacheDir);
if (cacheFiles != null)
{
var expiredDay = DateTime.Now.AddDays(-CacheFileExpirationDays);
foreach (var file in cacheFiles)
{
var createdAt = File.GetCreationTime(file);
if (createdAt < expiredDay)
{
fileService.DeleteFile(file);
}
}
}
if (_localFilesCache == null)
{
_localFilesCache = new ConcurrentDictionary <string, Bitmap>();
}
if (_remoteFilesCache == null)
{
_remoteFilesCache = new ConcurrentDictionary <string, CacheItem>();
}
_isCacheInitialized = true;
}
}
private async Task <Bitmap> GetBitmap(string imageSource)
{
Bitmap image = null;
var fileName = imageSource.Substring(imageSource.LastIndexOf('/') + 1);
if (!fileName.Contains("."))
{
fileName += ".bmp";
}
var fullPath = $"{PicCacheDir}{fileName}";
var fileService = MvxFileStoreHelper.SafeGetFileStore();
if (fileService.Exists(fullPath))
{
byte[] storedFile;
fileService.TryReadBinaryFile(fullPath, out storedFile);
if (storedFile != null && storedFile.Length > 0)
{
try
{
image = BitmapFactory.DecodeByteArray(storedFile, 0, storedFile.Length);
}
catch (Exception ex)
{
Mvx.Error(ex.Message);
}
}
}
else
{
var restClient = Mvx.Resolve <RestClient>();
try
{
var data = await restClient.DownloadContent(imageSource).ConfigureAwait(false);
fileService.WriteFile(fullPath, data);
image = BitmapFactory.DecodeByteArray(data, 0, data.Length);
}
catch (Exception ex)
{
Mvx.Error(ex.Message);
}
}
return(image);
}
private void ProcessResponse(byte[] array)
{
try
{
var fileService = MvxFileStoreHelper.SafeGetFileStore();
var tempFilePath = DownloadPath + ".tmp";
fileService.WriteFile(tempFilePath, array);
fileService.TryMove(tempFilePath, DownloadPath, true);
}
catch (Exception ex)
{
FireDownloadFailed(ex);
Mvx.Resolve <MvvmCross.Platform.Platform.IMvxTrace>().Trace(MvvmCross.Platform.Platform.MvxTraceLevel.Error, $"{GetType().FullName}\n", ex.BuildAllMessagesAndStackTrace());
return;
}
Mvx.Resolve <IMvxMainThreadDispatcher>().RequestMainThreadAction(FireDownloadComplete);
}
