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- func adjustImageFitInScrollView(){
- guard let img = self.imageView.image else {return}
- let w_scale = scrollView.frame.width / img.size.width
- let h_scale = scrollView.frame.height / img.size.height
- let scale = min(w_scale, h_scale)
- scrollView.minimumZoomScale = scale
- scrollView.setZoomScale(scale, animated: true)
- }
- @IBAction func showImg1(_ sender: Any) {
- let image0 = UIImage(named: "Image")
- imageView.image = image0
- imageView.frame.size = image0!.size
- scrollView.contentSize = image0!.size
- adjustImageFitInScrollView()
- }
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