UIImageView issue with rotation iOS

Question

I have an image view with pan and rotation gestures. pan and rotation functions as expected but at some point I have to get the image view to its initial position when changing the image. For that I'm setting the frame of image view again to the old frame. The frame is set but the image is sometimes shrunken. any help is appreciated. code for rotation is as below

 @objc fileprivate func handleRotationGesture1(sender:UIRotationGestureRecognizer)
{
    if sender.state == .began || sender.state == .changed {
        sender.view?.transform = (sender.view?.transform.rotated(by: sender.rotation))!
        sender.rotation = 0
    }
}
func repositionImages()
{
    imageView1.frame = imageView1Frame
    imageView2.frame = imageView2Frame
    imageView1.transform = CGAffineTransform.init(rotationAngle: 0)
    imageView2.transform = CGAffineTransform.init(rotationAngle: 0)

    imageView1.image = UIImage.init(cgImage: (image1.cgImage)!, scale: (image1.scale), orientation: .up)
    imageView2.image = UIImage.init(cgImage: (image2.cgImage)!, scale: (image2.scale), orientation: .up)

}

Jeroen Bakker Jeroen Bakker · Accepted Answer · 2017-06-13T14:41:58

You want to use .identity to reposition the transform of the imageView.

imageView.transform = .identity

UIImageView issue with rotation iOS

1 Answers