public byte[] ResizeImage(byte[] imageData, float width, float height)
{
UIImage originalImage = ImageUtils.FromByteArray(imageData);
float maxWidth = 200;
float maxHeight = 200;
float calculatedWidth = width;
float calculatedHeight = height;
var sourceSize = originalImage.Size;
var maxResizeFactor = Math.Max(maxWidth / sourceSize.Width, maxHeight / sourceSize.Height);
if (maxResizeFactor > 1)
{
return(originalImage.AsJPEG().ToArray());
}
calculatedWidth = (float)maxResizeFactor * (float)sourceSize.Width;
calculatedHeight = (float)maxResizeFactor * (float)sourceSize.Height;
UIGraphics.BeginImageContext(new SizeF(calculatedWidth, calculatedHeight));
originalImage.Draw(new RectangleF(0, 0, calculatedWidth, calculatedHeight));
var resultImage = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
string AvatarImageName = "avatar.jpg";
string PersonalFolderPath = "";
string avatarFilename = System.IO.Path.Combine(PersonalFolderPath, AvatarImageName);
resultImage.AsJPEG().Save(avatarFilename, true);
return(resultImage.AsJPEG().ToArray());
}
