Question

我尝试了很多解决方案但没有得到正确答案。

这是我的代码：

self.AhadeesView = UILabel()
self.AhadeesView.translatesAutoresizingMaskIntoConstraints = false
self.AhadeesView.backgroundColor = UIColor.orange
self.AhadeesView.numberOfLines = 0
self.AhadeesView.text = NSLocalizedString("TitleAhadees", comment: "Title Ahadees of the App")
self.AhadeesView.textAlignment = .center
self.AhadeesView.font = UIFont(name:"Jameel-Noori-Nastaleeq",size:25)
self.AhadeesView.lineBreakMode = NSLineBreakMode.byWordWrapping
//   self.AhadeesView.sizeToFit()

containerView1.addSubview(AhadeesView)

Answer 1

好像你错过了框架来展示标签。

self.AhadeesView = UILabel(frame: [your frame value])

可以通过

创建框架

let frame = CGRect(x: 0, y: 0, width: 320, height: [height_of_String])

[height_of_String]可以通过以下扩展名计算

您可以使用以下扩展方法

计算字符串的宽度和高度

extension String {
    //To calculate the height u need to pass the width of the label and the required font size.

    func height(withConstrainedWidth width: CGFloat, font: UIFont) -> CGFloat {
        let constraintRect = CGSize(width: width, height: .greatestFiniteMagnitude)
        let boundingBox = self.boundingRect(with: constraintRect, options: .usesLineFragmentOrigin, attributes: [NSFontAttributeName: font], context: nil)
        return ceil(boundingBox.height)
    }

    func width(withConstraintedHeight height: CGFloat, font: UIFont) -> CGFloat {
        let constraintRect = CGSize(width: .greatestFiniteMagnitude, height: height)
        let boundingBox = self.boundingRect(with: constraintRect, options: .usesLineFragmentOrigin, attributes: [NSFontAttributeName: font], context: nil)
        return ceil(boundingBox.width)
     }
}

如何以编程方式在Swift中根据文本高度UILabel高度

1 个答案: