added iOS source code

[wl-app.git] / iOS / WolneLektury / Extensions / UIColor+Ext.swift

diff --git a/iOS/WolneLektury/Extensions/UIColor+Ext.swift b/iOS/WolneLektury/Extensions/UIColor+Ext.swift
new file mode 100644 (file)
index 0000000..367296a
--- /dev/null
+++ b/iOS/WolneLektury/Extensions/UIColor+Ext.swift
@@ -0,0 +1,29 @@
+//
+//  UIColor+Ext.swift
+//  WolneLektury
+//
+//  Created by Pawel Dabrowski on 30/08/2018.
+//  Copyright © 2018 Fundacja Nowoczesna Polska. All rights reserved.
+//
+
+import Foundation
+import UIKit
+
+extension UIColor{
+    
+    convenience init(hex:String) {
+        
+        var cString:String = hex.trimmingCharacters(in: .whitespacesAndNewlines).uppercased()
+        var rgbValue:UInt32 = 0
+        
+        if cString.hasPrefix("#") {
+            cString.remove(at: cString.startIndex)
+        }
+        
+        if cString.count == 6 {
+            Scanner(string: cString).scanHexInt32(&rgbValue)
+        }
+        
+        self.init(red: CGFloat((rgbValue & 0xFF0000) >> 16) / 255.0, green: CGFloat((rgbValue & 0x00FF00) >> 8) / 255.0, blue: CGFloat(rgbValue & 0x0000FF) / 255.0, alpha: 1.0 )
+    }
+}