iOS 14 PickerView 截断文本 [英] iOS 14 PickerView cutting off text

问题描述

我有一个选择器视图，它不能像 iOS 14 那样正确显示文本.有谁知道如何解决这个问题?似乎有一个覆盖文本的子视图?

I Have a pickerview which does not display text properly as off iOS 14. Does anyone know how to fix this? It seems like there is a subview covering the text?

是不是因为我使用了自定义标签?

Is it because I'm using a custom label?

func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
        let pickerLabel = UILabel()
        let titleData = pickerDataSource[row]
        
        pickerView.subviews[1].backgroundColor = .clear
        pickerView.subviews[0].backgroundColor = .clear
        
        let myTitle = NSAttributedString(string: titleData, attributes: [NSAttributedString.Key.font:UIFont.systemFont(ofSize: 18),NSAttributedString.Key.foregroundColor:UIColor.black])
        pickerLabel.attributedText = myTitle
        return pickerLabel
    }

推荐答案

只需在标签中添加 margin-left 即可.

Just add margin-left to the label would do the trick.

修复后

原始代码:

extension UILabel {
    func setMargins(margin: CGFloat = 10, _ leftMarginOnly: Bool = true) {
            if let textString = self.text {
                let paragraphStyle = NSMutableParagraphStyle()
                paragraphStyle.firstLineHeadIndent = margin
                paragraphStyle.headIndent = margin
                if !leftMarginOnly {
                    paragraphStyle.tailIndent = -margin
                }
                let attributedString = NSMutableAttributedString(string: textString)
                attributedString.addAttribute(.paragraphStyle, value: paragraphStyle, range: NSRange(location: 0, length: attributedString.length))
                attributedText = attributedString
            }
        }
}

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