Swift 如何在 UIImagepickercontroller 中设置编辑器裁剪尺寸

Question

对于我的 iOS 应用程序，我需要一个 Fotoeditor。因此我设定：

imagePicker.allowsEditing = true

现在我想更改可编辑区域的大小。

这是可编辑区域，但我需要不同的可用图像的大小：

如何更改该区域的大小以对可用图像区域使用不同的大小？

这是我的 PickerController 的代码

@IBOutlet weak var preview: UIImageView!

let imagePicker = UIImagePickerController()

@IBAction func selectImage(_ sender: Any) {
    imagePicker.allowsEditing = true
    imagePicker.sourceType = .photoLibrary

    present(imagePicker, animated: true, completion: nil)
}

override func viewDidLoad() {
    super.viewDidLoad()

    imagePicker.delegate = self
}

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage{
        preview.contentMode = .scaleAspectFit
        preview.image = pickedImage
    }
    dismiss(animated: true, completion: nil)
}

func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
    dismiss(animated: true, completion: nil)
}

Answer 1

我试图从库或相机中保存编辑后的图像，但在网上没有找到任何内容，所以我尝试了这段代码，它有效！斯威夫特 4.2

if let pickedImage = info[UIImagePickerController.InfoKey.editedImage] as? UIImage{
            imageProfile.contentMode = .scaleAspectFit
            imageProfile.image = pickedImage
}

这行代码必须位于函数内部

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]){}