UIColor.sysFg -> UIColor.sysLabel

This commit is contained in:
relikd
2020-06-27 00:50:47 +02:00
parent 895cabee80
commit c7d0dc7c5f
8 changed files with 36 additions and 33 deletions

View File

@@ -0,0 +1,25 @@
import UIKit
// See: https://noahgilmore.com/blog/dark-mode-uicolor-compatibility/
extension UIColor {
/// `.systemBackground ?? .white`
static var sysBackground: UIColor { if #available(iOS 13.0, *) { return .systemBackground } else { return .white } }
/// `.link ?? .systemBlue`
static var sysLink: UIColor { if #available(iOS 13.0, *) { return .link } else { return .systemBlue } }
/// `.label ?? .black`
static var sysLabel: UIColor { if #available(iOS 13.0, *) { return .label } else { return .black } }
/// `.secondaryLabel ?? rgba(60, 60, 67, 0.6)`
static var sysLabel2: UIColor { if #available(iOS 13.0, *) { return .secondaryLabel } else { return .init(red: 60/255.0, green: 60/255.0, blue: 67/255.0, alpha: 0.6) } }
/// `.tertiaryLabel ?? rgba(60, 60, 67, 0.3)`
static var sysLabel3: UIColor { if #available(iOS 13.0, *) { return .tertiaryLabel } else { return .init(red: 60/255.0, green: 60/255.0, blue: 67/255.0, alpha: 0.3) } }
}
extension NSMutableAttributedString {
func withColor(_ color: UIColor, fromBack: Int) -> Self {
let l = length - fromBack
let r = (l < 0) ? NSMakeRange(0, length) : NSMakeRange(l, fromBack)
self.addAttribute(.foregroundColor, value: color, range: r)
return self
}
}