swift - Swift 属性左预期编号列表

Question

我正在使用以下代码以警报样式创建规则列表UIAlertController

let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = NSTextAlignment.Left
let messageText = NSMutableAttributedString(
    string: "1. Do not bully or target other users.\n2. Do not post others' private information.\n3. Do not post useless or offensive content.\n4. Do not post others' copyrighted content.\n5. Downvote and Flag posts which violate these rules.\n6. If you violate these rules, your account may be suspended and/or your content removed.",
    attributes: [
        NSParagraphStyleAttributeName: paragraphStyle,
        NSFontAttributeName : UIFont(name: "Lato-Regular", size: 13.0)!,
        NSForegroundColorAttributeName : colorAccentWords
    ]
)

它给了我警报视图，如下所示：

我想要的是使编号列表左对齐，以便每一行的溢出文本左对齐。我怎样才能做到这一点？

Answer 1

将 的headIndent属性设置paragraphStyle为适当的值，例如

paragraphStyle.headIndent = 13.0