텍스트를 이미지로 그려서 붙이기

러프한 코드 뭉치지만 도움이 될 부분도 있을 것 같다.

    private func drawText(str : String, x : CGFloat, y : CGFloat, width : CGFloat, height : CGFloat, txtSize : CGFloat) -> CALayer {

        let commonWidth = width + (txtSize / 4)

        let renderer = UIGraphicsImageRenderer(size: CGSize(width: commonWidth, height: height))

        let img = renderer.image { soraforever in

            let paragraphStyle = NSMutableParagraphStyle()

            paragraphStyle.alignment = .center

            let attrs = [NSAttributedStringKey.font: UIFont(name: "".font1(), size: txtSize)!, NSAttributedStringKey.paragraphStyle: paragraphStyle]

            let string = str

            string.draw(with: CGRect(x: 0, y: 0, width: commonWidth, height: height), options: .usesLineFragmentOrigin, attributes: attrs, context: nil)

        }

self.addSublayer(drawText(str: String(l), x: xlocation-(GS.s.jhATextPanelSize*3), y: jhDraw.ARQ-mMargin, width: GS.s.jhATextPanelSize, height: GS.s.jhATextPanelSize, txtSize: GS.s.jhATextSize))

            }

 self.addSublayer(drawText(str: mUnit, x: 50, y: 50, width: GS.s.jhATextPanelSize+10, height: GS.s.jhATextPanelSize, txtSize: 7)) 

   self.addSublayer(drawText(str: label, x: 100, y: fx2 - 600, width: GS.s.jhATextPanelSize, height: GS.s.jhATextPanelSize, txtSize: GS.s.jhATextSize))