更新:根据以下研究,我发现您可以使用以下方法解决此问题:
- NSAttributedStringKey
- NSAttributedString
- NSMutableAttributedString
第一步
我创建了一个名为 generateEntry 的私有函数,它返回一个 NSMutableAttributedString
private func generateEntry(bType: String, bTitle:String, bDescription:String, bUrl: String) -> NSMutableAttributedString {
// -- passed in parameters
let bookmarkType:String = bType
let bookmarkTitle:String = bTitle
let bookmarkDesc: String = bDescription
let bookmarkUrl: String = bUrl
// -- type
// Step 1 - you need to create the attribute for the string you want to change. Size, color, kern effect
// Step 2 - then you create a NSAttributedString and apply the attributes from the previous line
let bTypeAttribute = [NSAttributedStringKey.font: UIFont(name: "Arial", size: 14), NSAttributedStringKey.foregroundColor: UIColor.black, NSAttributedStringKey.kern: NSNumber(value: 0.5)]
let test: NSAttributedString = NSAttributedString(string: bookmarkType.uppercased() + ": ", attributes: bTypeAttribute as Any as? [NSAttributedStringKey : Any])
// -- title
let bTitleAttribute = [NSAttributedStringKey.font: UIFont(name: "Arial-Bold", size: 18), NSAttributedStringKey.foregroundColor: UIColor.black]
let testb: NSAttributedString = NSAttributedString(string: bookmarkTitle, attributes: bTitleAttribute as Any as? [NSAttributedStringKey : Any])
// -- description
let bDescriptionAttribute = [NSAttributedStringKey.font: UIFont(name: "Arial", size: 18), NSAttributedStringKey.foregroundColor: UIColor.black]
let testc: NSAttributedString = NSAttributedString(string: ": " + bookmarkDesc, attributes: bDescriptionAttribute as Any as? [NSAttributedStringKey : Any])
// -- url
let bURLAttribute = [NSAttributedStringKey.font: UIFont(name: "Arial-Italic", size: 18), NSAttributedStringKey.foregroundColor: UIColor.black]
let testd: NSAttributedString = NSAttributedString(string: bookmarkUrl, attributes: bURLAttribute as Any as? [NSAttributedStringKey : Any])
// combine the strings
let mutableAttributedString = NSMutableAttributedString()
mutableAttributedString.append(test)
mutableAttributedString.append(testb)
mutableAttributedString.append(testc)
mutableAttributedString.append(NSAttributedString(string: "\n"))
mutableAttributedString.append(testd)
return mutableAttributedString
}
第 2 步
然后在我的 tableViewCell 中,我可以使用这个私有方法来生成 NSMutableAttributedString 并将其应用于我的自定义 tableViewCell。但不要使用cell.descriptionLabel.text,您需要确保使用attributedText
let testText = generateEntry(bType: "Type", bTitle: "PLACE", bDescription: "A description...", bUrl: "URL")
cell.descriptionLabel?.attributedText = testText