resizing UIImage the fastest and efficient way

Question

I wanted to resize a UIImage to a certain width and height keeping the proportion in place. The simplest way to do this is:

 CGSize newSize = CGSizeMake(726,         


        

Answer 1

Here is a simple way:

    UIImage * image = [UIImage imageNamed:@"image"];
    CGSize sacleSize = CGSizeMake(10, 10); // scale image to 10 x 10
    UIGraphicsBeginImageContextWithOptions(sacleSize, NO, 0.0);
    [image drawInRect:CGRectMake(0, 0, sacleSize.width, sacleSize.height)];
    UIImage * resizedImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

resizedImage is a new image.