如何在 Xcode swift 中更改图片方向
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How to change picture orientation in Xcode swift
提问by Gurpinder Singh
I get a picture from the photo library and call it image using this code:
我从照片库中获取一张图片，并使用以下代码将其称为 image：
@IBAction func importImage(_ sender: AnyObject) {
let image = UIImagePickerController()
image.delegate = self
image.sourceType = UIImagePickerControllerSourceType.photoLibrary
image.allowsEditing = false
self.present(image, animated: true) { }
}
and this code:
和这个代码：
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
myImageView.image = image
dismiss(animated: true, completion: nil)
SubmitBtnOutlet.isHidden = false;
Gurpcontroller.person = "yours";
Gurpcontroller.collecterthing = "Coin";
PictureViewController.imageuniversal = myImageView
} else {
//Error message
}
}
I want to see if image is landscape or portrait. Then, if it is landscape I want to change it to portrait.
我想看看图像是横向还是纵向。然后，如果是横向，我想将其更改为纵向。
回答by Malik
You can get the orientation by using image.imageOrientation.
您可以使用image.imageOrientation.
In order to change the orientation, the quickest solution would be to create a new UIImage from the actual image as follows:
为了改变方向，最快的解决方案是从实际图像创建一个新的 UIImage 如下：
let newImage = UIImage(cgImage: image.cgImage!, scale: image.scale, orientation: .up)
