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-(UIImage*)imageWithImage:(UIImage*)image scaledToSize:(CGSize)newSize; { UIGraphicsBeginImageContext( newSize ); [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)]; UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return newImage; } |
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// grab the original image UIImage *originalImage = [UIImage imageNamed:@"myImage.png"]; // scaling set to 2.0 makes the image 1/2 the size. UIImage *scaledImage = [UIImage imageWithCGImage:[originalImage CGImage] scale:2.0 orientation:UIImageOrientationUp]; |