UIKit - UILabel 취소선 적용하기
UIKit - UILabel 취소선 적용하기
UILabel에 취소선을 적용하는 것은 NSAttributedString을 통해 처리 가능함.
Apple Develop Document
적용 코드
String+StrikeThrough.swift
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import UIKit
extension String{
// 취소선 적용
func strikeThrough() -> NSAttributedString{
let attributeString = NSMutableAttributedString(string: self)
attributeString.addAttribute(.strikethroughStyle, value: NSUnderlineStyle.single.rawValue, range: NSMakeRange(0, attributeString.length))
return attributeString
}
// 적용된 속성 해제
func unStrikeThrough() -> NSAttributedString{
let attributeString = NSMutableAttributedString(string: self)
attributeString.addAttribute(.strikethroughStyle, value: [], range: NSMakeRange(0, attributeString.length))
return attributeString
}
}
TodoCell.swift
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import UIKit
class TodoCell: UITableViewCell {
...
func toggleLabelStrikeThrough(isCompleted: Bool){
if isCompleted{
// 완료 시 취소선 적용
todoTitleLabel.textColor = UIColor(named: "completedColor")
todoTitleLabel.attributedText = todoTitleLabel.text?.strikeThrough()
createdAtLabel.textColor = UIColor(named: "completedColor")
createdAtLabel.attributedText = createdAtLabel.text?.strikeThrough()
}else{
// 취소선 속성 해제
todoTitleLabel.textColor = UIColor(named: "todoTitleColor")
todoTitleLabel.attributedText = todoTitleLabel.text?.unStrikeThrough()
createdAtLabel.textColor = UIColor(named: "createdDateColor")
createdAtLabel.attributedText = createdAtLabel.text?.unStrikeThrough()
}
}
}
결과
Reference
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