public async Task <byte[]> LoadImageData(string url, bool isNeededResize)
{
string filePath = null;
if (_dictCacheImages.ContainsKey(url))
{
string value = null;
bool result = _dictCacheImages.TryGetValue(url, out value);
if (result)
{
filePath = value;
}
}
else
{
_index++;
filePath = await _platformService.DownloadAndCacheImage(_index, url);
if (filePath != null)
{
if (_dictCacheImages.ContainsKey(url))
{
_dictCacheImages.Remove(url);
}
_dictCacheImages.Add(url, filePath);
}
}
if (filePath != null)
{
if (isNeededResize)
{
return(await _platformService.ReadFileAndResize(filePath, IMAGESIZE_THUMB));
}
else
{
return(await _platformService.ReadFile(filePath));
}
}
return(null);
}
