Added accessibility support

Source/BrightnessView.swift

@@ -25,6 +25,10 @@ class BrightnessView: UIView {
     init(frame: CGRect, color: UIColor) {
         super.init(frame: frame)
 
+        // Enable direct interaction for VoiceOver users
+        self.isAccessibilityElement = true
+        self.accessibilityTraits |= UIAccessibilityTraitAllowsDirectInteraction
+
         // Init the point at the correct position
         point = getPointFromColor(color)
 

Source/ColorWheel.swift

@@ -42,6 +42,10 @@ class ColorWheel: UIView {
 
         self.color = color
 
+        // Enable direct interaction for VoiceOver users
+        self.isAccessibilityElement = true
+        self.accessibilityTraits |= UIAccessibilityTraitAllowsDirectInteraction
+
         // Layer for the Hue/Saturation wheel
         wheelLayer = CALayer()
         wheelLayer.frame = CGRect(x: 20, y: 20, width: self.frame.width-40, height: self.frame.height-40)

Source/SelectedColorView.swift

@@ -10,6 +10,29 @@ import UIKit
 class SelectedColorView: UIView {
     var color: UIColor!
 
+    // Describe color for VoiceOver users
+    override var accessibilityLabel: String? {
+        set { }
+        get {
+            var red: CGFloat = 0.0, green: CGFloat = 0.0, blue: CGFloat = 0.0
+            self.color.getRed(&red, green: &green, blue: &blue, alpha: nil)
+
+            let colorString = NSLocalizedString("Color", comment: "Title for color")
+            let redString = NSLocalizedString("Red", comment: "The color red")
+            let greenString = NSLocalizedString("Green", comment: "The color green")
+            let blueString = NSLocalizedString("Blue", comment: "The color blue")
+
+            let percentFormatter = NumberFormatter()
+            percentFormatter.numberStyle = .percent
+
+            let redPercent = percentFormatter.string(from: NSNumber(floatLiteral: Double(red)))!
+            let greenPercent = percentFormatter.string(from: NSNumber(floatLiteral: Double(green)))!
+            let bluePercent = percentFormatter.string(from: NSNumber(floatLiteral: Double(blue)))!
+
+            return "\(colorString), \(redPercent) \(redString), \(greenPercent) \(greenString), \(bluePercent) \(blueString)"
+        }
+    }
+
     required init?(coder aDecoder: NSCoder) {
         super.init(coder: aDecoder)
     }
@@ -18,6 +41,9 @@ class SelectedColorView: UIView {
         super.init(frame: frame)
 
         setViewColor(color)
+
+        // Make accessible
+        self.isAccessibilityElement = true
     }
 
     func setViewColor(_ _color: UIColor) {