swift - UISegmentedControl 通过代码自定义

Question

我的 UISegmentedControl 有问题。我创建了段类:

import UIKit

class CustomSegmentedControl: UISegmentedControl {

    func AwakeFromNib() {
    super.awakeFromNib()

    let myColor : UIColor = UIColor(red: 0.0, green: 0.0, blue: 0.0, alpha: 1.0)
    self.layer.masksToBounds = true
    self.layer.borderColor = myColor.cgColor
    self.layer.borderWidth = 0.5
    self.layer.cornerRadius = 8

    }
}

当我尝试改变某些东西时，它没有改变。在我的主 ViewController 中，我标记了 UISegmentedControl 的类文件。

这是 ViewController 中的函数定义:

 @IBAction func ShowInterval(_ sender: UISegmentedControl) {
 }

你能帮我一下吗？非常感谢您!

Answer 1

来自苹果文档:

The nib-loading infrastructure sends an awakeFromNib message to each object recreated from a nib archive, but only after all the objects in the archive have been loaded and initialized

试试这个:

func layoutSubviews() {
    super.layoutSubviews()
    let myColor : UIColor = UIColor(red: 0.0, green: 0.0, blue: 0.0, alpha: 1.0)
    self.layer.masksToBounds = true
    self.layer.borderColor = myColor.cgColor
    self.layer.borderWidth = 0.5
    self.layer.cornerRadius = 8
}