在具有指定字体的UILabel中显示html标记

// 导入WebKit框架
import WebKit

// 定义一个函数，用于将HTML字符串转换为NSAttributedString对象
func attributedString(from htmlString: String, font: UIFont) -> NSAttributedString? {
    guard let data = htmlString.data(using: .utf8) else {
        return nil
    }
    
    let options: [NSAttributedString.DocumentReadingOptionKey: Any] = [
        .documentType: NSAttributedString.DocumentType.html,
        .characterEncoding: String.Encoding.utf8.rawValue
    ]
    
    do {
        let attributedString = try NSAttributedString(data: data, options: options, documentAttributes: nil)
        
        // 设置字体
        let mutableAttributedString = NSMutableAttributedString(attributedString: attributedString)
        mutableAttributedString.addAttribute(.font, value: font, range: NSRange(location: 0, length: mutableAttributedString.length))
        
        return mutableAttributedString
    } catch {
        print("Error converting HTML to NSAttributedString: \(error)")
        return nil
    }
}

// 创建一个UILabel对象
let label = UILabel(frame: CGRect(x: 0, y: 0, width: 200, height: 100))

// 设置字体
let font = UIFont.systemFont(ofSize: 14)
label.font = font

// HTML字符串
let htmlString = "<b>Hello</b> <i>World</i>"

// 将HTML字符串转换为NSAttributedString对象
if let attributedText = attributedString(from: htmlString, font: font) {
    // 设置UILabel的attributedText属性
    label.attributedText = attributedText
}