swift - 从 imagePickerController 选择的图像占据整个屏幕，而不是适合 UI ImageView [Swift]

Question

我有一个在容器 View 中以编程方式创建的 ImageView ，如下所示:

Screen shot with circular profile image view inside container view

我在个人资料 ImageView 顶部有一个按钮覆盖层，用于调用图像选择器 Controller 。当从照片库中选择图像时，该图像会占据整个屏幕，如下所示:

Screenshot after image is selected

以下是该 View Controller 的 viewDidLoad() 和 imagePickerController() 的代码:

override func viewDidLoad() {
    super.viewDidLoad()

    self.profileBackgroundView.backgroundColor = UIColor.init(red: CGFloat(69.0/255.0), green: CGFloat(171.0/255.0), blue: CGFloat(222.0/255.0), alpha: CGFloat(1))

    //initializePrimaryUserData()

    fullNameTextField.text = self.primaryUser.firstName + self.primaryUser.lastName
    nickNameTextField.text = self.primaryUser.userName

    //create profile image view

    if hasProfilePic {
        profileImage.image = self.primaryUser.image
    } else {
        image = UIImage(named: imageName)!
        profileImage.image = image
    }

    profileImage.frame = CGRect(x: profileBackgroundView.bounds.midX, y: profileBackgroundView.bounds.midY, width: 100, height: 100)

    profileImage.translatesAutoresizingMaskIntoConstraints = false
    profileBackgroundView.addSubview(profileImage)

    profileImage.centerXAnchor.constraint(equalTo: profileBackgroundView.centerXAnchor).isActive = true
    profileImage.centerYAnchor.constraint(equalTo: profileBackgroundView.centerYAnchor).isActive = true

    profileImage.layer.cornerRadius = profileImage.frame.size.width / 2
    profileImage.layer.masksToBounds = false
    profileImage.clipsToBounds = true
    profileImage.contentMode = .scaleAspectFit

    //create profileImageButton
    let profileImageButton = UIButton(frame: CGRect(x: profileBackgroundView.bounds.midX, y: profileBackgroundView.bounds.midY, width: 100, height: 100))
    profileImageButton.setTitle("Photo", for: .normal)
    profileImageButton.addTarget(self, action: #selector(profileImageButtonClicked), for: .touchUpInside)

    profileImageButton.translatesAutoresizingMaskIntoConstraints = false

    profileBackgroundView.addSubview(profileImageButton)

    profileImageButton.centerXAnchor.constraint(equalTo: profileBackgroundView.centerXAnchor).isActive = true
    profileImageButton.centerYAnchor.constraint(equalTo: profileBackgroundView.centerYAnchor).isActive = true

    // Do any additional setup after loading the view.

}

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

    if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {

        self.primaryUser.image = image
        self.hasProfilePic = true
        self.profileImage.image = image
        self.profileImage.contentMode = .scaleAspectFit
        self.profileImage.clipsToBounds = true
    }

    self.dismiss(animated: true, completion: nil)
}

Answer 1

你可以试试这个

self.profileImage.contentMode = .scaleToFill