private void RequestImage(string imageSource)
{
ClearCurrentHttpImageRequest();
if (string.IsNullOrEmpty(imageSource))
{
ShowDefaultImage();
return;
}
if (imageSource.StartsWith("http", StringComparison.OrdinalIgnoreCase))
{
NewHttpImageRequested();
_currentImageRequest = new MvxResizedImageRequest <T>(imageSource);
_currentImageRequest.Complete += CurrentImageRequestOnComplete;
_currentImageRequest.Error += CurrentImageRequestOnError;
_currentImageRequest.Start();
}
else
{
var image = ImageFromLocalFile(imageSource);
if (image == null)
{
ShowErrorImage();
}
else
{
NewImageAvailable(image);
}
}
}
private void ClearCurrentHttpImageRequest()
{
if (_currentImageRequest == null)
{
return;
}
_currentImageRequest.Complete -= CurrentImageRequestOnComplete;
_currentImageRequest.Error -= CurrentImageRequestOnError;
_currentImageRequest = null;
}
