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我想創建只有底部邊框的文本字段。該字段放置在動態單元格內並使用故事板創建。邊框樣式設置爲無。自動佈局已打開。該線畫在layoutSubviews()。但是，該行不會出現。你能幫我解決嗎？ Thx提前！如何在uiTableViewCell中的uiTextField下畫一條線？
下面是代碼：
extension UITextField {
func drawUnderline() {
let underline = CALayer()
let underlineWidth = CGFloat(1.0)
underline.borderColor = UIColor.black.cgColor
underline.frame = CGRect(x: 0, y: self.frame.size.height - underlineWidth, width: self.frame.size.width, height: self.frame.size.height)
underline.borderWidth = underlineWidth
self.layer.addSublayer(underline)
self.layer.masksToBounds = true
}
}
class TextFieldTableViewCell: UITableViewCell {
@IBOutlet weak var editTextField: UITextField!
override func awakeFromNib() {
super.awakeFromNib()
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
override func layoutSubviews() {
super.layoutSubviews()
self.editTextField.drawUnderline() // The line is drawn here
}
}