NSAttribute不會讓BoldSwift

我正在嘗試使用粗體全名函式使全名粗體。但顯然，它并沒有對其進行任何更改。我相信轉換為字串正在洗掉 mutableString 功能。如何在不回傳 NSAttributedString 的情況下避免它

class NewNotificationModel: Serializable {
var fromUser: NewNotificationFromUserModel!
 }

class NewNotificationFromUserModel: Serializable {
var name: String!
var lastName: String!
}

final class NewNotificationViewModel {

// MARK: Properties
var notificationModel: NewNotificationModel!

private(set) var fullName: String!
 init(notificationModel: NewNotificationModel) {
    self.notificationModel = notificationModel
    self.fullName = boldFullName(getFullName())

 private func getFullName() -> String {
    guard let fromUser = notificationModel.fromUser, let name = fromUser.name, let lastname = fromUser.lastName else { return "" }
    return name   " "   lastname
}

func boldFullName(_ fullname: String) -> String {
    let range = NSMakeRange(0, getFullName().count)
    let nonBoldFontAttribute = [NSAttributedString.Key.font:UIFont.sfProTextSemibold(size: 16)]
    let boldFontAttribute = [NSAttributedString.Key.font:UIFont.catamaranBold(size: 20)]
    let boldString = NSMutableAttributedString(string: getFullName() as String, attributes:nonBoldFontAttribute)
        boldString.addAttributes(boldFontAttribute, range: range)
    return boldString.mutableString as String
}
}

我在表格單元格中使用這個全名，如下所示

class NewNotificationTableViewCell: UITableViewCell, Reusable, NibLoadable {
@IBOutlet weak var messageLbl: UILabel!
 messageLbl.text = NewNotificationTableViewCell.configureText(model: model)

我的 configureText 函式是

private static func configureText(model: NewNotificationViewModel) -> String {
    guard let type = model.type else { return "" }
    switch NotificationType.init(rawValue: type) {
    String(format:"new_notification.group.request.want.join.text_%@_%@".localized, model.fullName, model.groupName ?? "")
    case .mention?: return String(format:"new_notification.post.mention_%@".localized, model.fullName)

但是那些 .fullName 對加粗 fullName 沒有任何作用。

編輯為 NSAttributedString 但這給出了錯誤

 case .internalCommunicationMessage?: return NSAttributedString(format:("new_notification.announcement.text_%@".localized), args: NSAttributedString(string: model.groupName ?? ""))

有了這個擴展。

public extension NSAttributedString {
convenience init(format: NSAttributedString, args: NSAttributedString...) {
    let mutableNSAttributedString = NSMutableAttributedString(attributedString: format)

    args.forEach { (attributedString) in
        let range = NSString(string: mutableNSAttributedString.string).range(of: "%@")
        mutableNSAttributedString.replaceCharacters(in: range, with: attributedString)
    }
    self.init(attributedString: mutableNSAttributedString)
}

}

無法將“String”型別的值轉換為預期的引數型別“NSAttributedString”

uj5u.com熱心網友回復：

String 不包含屬性，您確實需要NSAttributedString從函式中回傳 a 。

您可以做的是將屬性字串分配給. 檔案在這里attributedTextUILabel

示例（在更新您的函式以回傳 a 之后NSAttributedString）：

messageLbl.attributedText = NewNotificationTableViewCell.configureText(model: model)

uj5u.com熱心網友回復：

你需要分配messageLbl.attributedText

func boldFullName(_ fullname: String) -> NSAttributedString {
    let range = NSMakeRange(0, getFullName().count)
    let nonBoldFontAttribute = [NSAttributedString.Key.font:UIFont.sfProTextSemibold(size: 16)]
    let boldFontAttribute = [NSAttributedString.Key.font:UIFont.catamaranBold(size: 20)]
    let boldString = NSMutableAttributedString(string: getFullName() as String, attributes:nonBoldFontAttribute)
        boldString.addAttributes(boldFontAttribute, range: range)
    return boldString.mutableString
}

uj5u.com熱心網友回復：

主要問題是您試圖提供attributedString不會text影響UILabel. 您必須更改代碼的某些部分，例如：

private(set) var fullName: String!

到 ：

private(set) var fullName: NSMutableAttributedString!

和

func boldFullName(_ fullname: String) -> String {
let range = NSMakeRange(0, getFullName().count)
let nonBoldFontAttribute = [NSAttributedString.Key.font:UIFont.sfProTextSemibold(size: 16)]
let boldFontAttribute = [NSAttributedString.Key.font:UIFont.catamaranBold(size: 20)]
let boldString = NSMutableAttributedString(string: getFullName() as String, attributes:nonBoldFontAttribute)
    boldString.addAttributes(boldFontAttribute, range: range)
return boldString.mutableString as String
}

到：

 func boldFullName(_ fullname: String) -> NSMutableAttributedString {
let range = NSMakeRange(0, getFullName().count)
let nonBoldFontAttribute = [NSAttributedString.Key.font:UIFont.systemFont(ofSize: 10)]
let boldFontAttribute = [NSAttributedString.Key.font:UIFont.systemFont(ofSize: 30)]
let boldString = NSMutableAttributedString(string: getFullName() as String, attributes:nonBoldFontAttribute)
    boldString.addAttributes(boldFontAttribute, range: range)
return boldString
}

最后當你呼叫 useattributedText而不是string

 messageLbl.attributedText = ...

標籤：迅速 uilabel nsattributedstring

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