为文本背景颜色添加填充

Question

我想让文本“突出显示”，但不是整个文本框。我希望每一行都单独突出显示。我还没有找到实现这一目标的最佳方法。我唯一能想到的就是使用变量中的相同文本，在其上放置背景颜色，将字体降低到产生间隙的位置并使文本颜色清晰......如果这有意义的话。这就是我想要的。我正在使用 SwiftUI。任何帮助将不胜感激。

重要的是，这就是我用来实现文本对齐的方法。

struct LabelAlignment: UIViewRepresentable {
    var text: String
    var textAlignmentStyle : TextAlignmentStyle
    var width: CGFloat
    var fontName: String
    var fontSize: CGFloat
    var fontColor: UIColor

    func makeUIView(context: Context) -> UILabel {
        let font = UIFont(name: fontName, size: fontSize)
        let label = UILabel()
        label.textAlignment = NSTextAlignment(rawValue: textAlignmentStyle.rawValue)!
        label.numberOfLines = 0
        label.preferredMaxLayoutWidth = width
        label.font = font
        label.setContentHuggingPriority(.required, for: .horizontal)
        label.setContentHuggingPriority(.required, for: .vertical)
        label.textColor = fontColor

        return label
    }

    func updateUIView(_ uiView: UILabel, context: Context) {
        uiView.text = text
    }
}

enum TextAlignmentStyle : Int{
     case left = 0 ,center = 1 , right = 2 ,justified = 3 ,natural = 4
}

Answer 1

具有行间距和背景颜色的属性文本

func updateUIView(_ uiView: UILabel, context: Context) {
    let paragraphStyle = NSMutableParagraphStyle()
    paragraphStyle.lineSpacing = 15
    let attributedText = NSAttributedString(
        string: "This is a quote from my favorite book. I will put many more of these quotes on this list. Enjoy for now thank you",
        attributes: [
            .backgroundColor: UIColor.yellow,
            .paragraphStyle: paragraphStyle,
        ])
    uiView.attributedText = attributedText
}