如何在 Swift 中舍入 UITextField 的右上角和左下角

Question

我想圆角 UITextField topLeft 和 bottomRight。

func conerRounderTextField(sides: CACornerMask) -> UITextField {
    let tf = UITextField()
    tf.backgroundColor = .white
    tf.clipsToBounds = true
    tf.layer.cornerRadius = 20
    tf.layer.maskedCorners = sides
    tf.layer.borderWidth = 1
    tf.layer.borderColor = UIColor.gray.cgColor
    return tf
}

并像这样调用 TextField：

private let passwordTextField: UITextField = {
    let tf = Utillities().conerRounderTextField(sides: [.layerMaxXMinYCorner, .layerMinXMaxYCorner])
    return tf
}()

通过使用它，我得到了我想要的设计，但 TextField 不工作。

你能帮帮我吗？

Answer 1

以下对我有效（Xcode 11.5）：

class ViewController: UIViewController {

    func cornerRounderTextField(sides: CACornerMask) -> UITextField {
        let tf = UITextField()
        tf.backgroundColor = .white
        tf.clipsToBounds = true
        tf.layer.cornerRadius = 16
        tf.layer.maskedCorners = sides
        tf.layer.borderWidth = 1
        tf.layer.borderColor = UIColor.gray.cgColor
        return tf
    }
    
    private lazy var passwordTextField: UITextField = {
        let tf = cornerRounderTextField(sides: [.layerMaxXMinYCorner, .layerMinXMaxYCorner])
        tf.translatesAutoresizingMaskIntoConstraints = false
        return tf
    }()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        view.addSubview(passwordTextField)
        
        NSLayoutConstraint.activate([
            passwordTextField.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            passwordTextField.centerYAnchor.constraint(equalTo: view.centerYAnchor),
            passwordTextField.widthAnchor.constraint(equalToConstant: 200),
            passwordTextField.heightAnchor.constraint(equalToConstant: 30)
        ])
    }
}

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如何在 Swift 中舍入 UITextField 的右上角和左下角

How to round the UITextField topRight and bottomLeft corners in Swift

uitextfield

ios

swift