iOS Resize Image scaled To Width

// Function

- (UIImage*)imageWithImage: (UIImage*) sourceImage scaledToWidth: (float) i_width

{

    float oldWidth = sourceImage.size.width;

    float scaleFactor = i_width / oldWidth;

    

    float newHeight = sourceImage.size.height * scaleFactor;

    float newWidth = oldWidth * scaleFactor;

    

    UIGraphicsBeginImageContext(CGSizeMake(newWidth, newHeight));

    [sourceImage drawInRect:CGRectMake(0, 0, newWidth, newHeight)];

    UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    return newImage;

}

Use : [self imageWithImage:image scaledToWidth:254];