COVIDSafe code from version 1.1

CovidSafe/UIElements/GradientButton.swift

@@ -0,0 +1,42 @@
+//
+//  GradientButton.swift
+//  CovidSafe
+//
+//  Copyright © 2020 Australian Government. All rights reserved.
+//
+
+import UIKit
+
+@IBDesignable
+class GradientButton: UIButton {
+    let gradientLayer = CAGradientLayer()
+
+    @IBInspectable
+    var topGradientColor: UIColor?
+
+    @IBInspectable
+    var bottomGradientColor: UIColor?
+
+    private func setGradient(topGradientColor: UIColor?, bottomGradientColor: UIColor?) {
+        if let topGradientColor = topGradientColor, let bottomGradientColor = bottomGradientColor {
+            gradientLayer.frame = bounds
+            gradientLayer.colors = [topGradientColor.cgColor, bottomGradientColor.cgColor]
+            gradientLayer.borderColor = layer.borderColor
+            gradientLayer.borderWidth = layer.borderWidth
+            gradientLayer.cornerRadius = layer.cornerRadius
+            gradientLayer.startPoint = CGPoint(x: 0, y: 0)
+            gradientLayer.endPoint = CGPoint(x: 1, y: 0)
+            gradientLayer.locations = [0.0, 1.0]
+            layer.insertSublayer(gradientLayer, at: 0)
+        } else {
+            gradientLayer.removeFromSuperlayer()
+        }
+    }
+    
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        
+        setGradient(topGradientColor: topGradientColor, bottomGradientColor: bottomGradientColor)
+    }
+    
+}