fixup examples, add motion effect

Author: Ryan Nystrom

ContextMenu.podspec

@@ -7,4 +7,6 @@ Pod::Spec.new do |spec|
   spec.summary      = 'Context menu inspired by Things 3.'
   spec.source       = { :git => 'https://github.com/GitHawkApp/ContextMenu.git', :tag => '#{s.version}' }
   spec.source_files = 'ContextMenu/*.swift'
+  spec.platform     = :ios, '10.0'
+  spec.swift_version = '4.0'
 end

ContextMenu/ClippedContainerViewController.swift

@@ -27,8 +27,23 @@ internal class ClippedContainerViewController: UIViewController {
         super.viewDidLoad()
         view.layer.cornerRadius = options.containerStyle.cornerRadius
         view.layer.shadowRadius = options.containerStyle.shadowRadius
+        view.layer.shadowOpacity = options.containerStyle.shadowOpacity
         view.layer.shadowColor = UIColor.black.cgColor
-        view.layer.shadowOpacity = 0.2
+
+        if options.containerStyle.motionEffect {
+            let amount = 12
+            let tiltX = UIInterpolatingMotionEffect(keyPath: "center.x", type: .tiltAlongHorizontalAxis)
+            tiltX.minimumRelativeValue = -amount
+            tiltX.maximumRelativeValue = amount
+
+            let tiltY = UIInterpolatingMotionEffect(keyPath: "center.y", type: .tiltAlongVerticalAxis)
+            tiltY.minimumRelativeValue = -amount
+            tiltY.maximumRelativeValue = amount
+
+            let group = UIMotionEffectGroup()
+            group.motionEffects = [tiltX, tiltY]
+            view.addMotionEffect(group)
+        }
 
         containedViewController.view.layer.cornerRadius = view.layer.cornerRadius
         containedViewController.view.clipsToBounds = true

ContextMenu/ContextMenu+ContainerStyle.swift

@@ -14,28 +14,34 @@ extension ContextMenu {
 
         public let cornerRadius: CGFloat
         public let shadowRadius: CGFloat
+        public let shadowOpacity: Float
         public let xPadding: CGFloat
         public let yPadding: CGFloat
         public let edgePadding: CGFloat
         public let backgroundColor: UIColor
         public let overlayColor: UIColor
+        public let motionEffect: Bool
 
         public init(
             cornerRadius: CGFloat = 8,
             shadowRadius: CGFloat = 15,
+            shadowOpacity: Float = 0.1,
             xPadding: CGFloat = 8,
             yPadding: CGFloat = 8,
             edgePadding: CGFloat = 15,
             backgroundColor: UIColor = .white,
-            overlayColor: UIColor = UIColor(white: 0, alpha: 0.3)
+            overlayColor: UIColor = UIColor(white: 0, alpha: 0.3),
+            motionEffect: Bool = true
             ) {
             self.cornerRadius = cornerRadius
             self.shadowRadius = shadowRadius
+            self.shadowOpacity = shadowOpacity
             self.xPadding = xPadding
             self.yPadding = yPadding
             self.edgePadding = edgePadding
             self.backgroundColor = backgroundColor
             self.overlayColor = overlayColor
+            self.motionEffect = motionEffect
         }
 
     }

ContextMenu/ContextMenu+Options.swift

@@ -15,15 +15,18 @@ extension ContextMenu {
         let durations: AnimationDurations
         let containerStyle: ContainerStyle
         let menuStyle: MenuStyle
+        let haptics: Bool
 
         public init(
             durations: AnimationDurations = AnimationDurations(),
             containerStyle: ContainerStyle = ContainerStyle(),
-            menuStyle: MenuStyle = .default
+            menuStyle: MenuStyle = .default,
+            haptics: Bool = true
             ) {
             self.durations = durations
             self.containerStyle = containerStyle
             self.menuStyle = menuStyle
+            self.haptics = haptics
         }
     }
 

ContextMenu/ContextMenu.swift

@@ -13,13 +13,18 @@ public class ContextMenu: NSObject {
     public static let shared = ContextMenu()
 
     internal var item: Item?
+    internal let haptics = UISelectionFeedbackGenerator()
 
     public func show(
         sourceViewController: UIViewController,
         viewController: UIViewController,
         options: Options = Options(),
         sourceView: UIView? = nil
         ) {
+        if options.haptics {
+            haptics.selectionChanged()
+        }
+
         let item = Item(
             viewController: viewController,
             options: options,

Example/Example.xcodeproj/project.pbxproj

@@ -63,13 +63,13 @@
 		2971CEA4205454BD00342296 /* Example */ = {
 			isa = PBXGroup;
 			children = (
-				2971CEB72054553400342296 /* MenuViewController.swift */,
 				2971CEA5205454BD00342296 /* AppDelegate.swift */,
-				2971CEA7205454BD00342296 /* ViewController.swift */,
-				2971CEA9205454BD00342296 /* Main.storyboard */,
 				2971CEAC205454BD00342296 /* Assets.xcassets */,
-				2971CEAE205454BD00342296 /* LaunchScreen.storyboard */,
 				2971CEB1205454BD00342296 /* Info.plist */,
+				2971CEAE205454BD00342296 /* LaunchScreen.storyboard */,
+				2971CEA9205454BD00342296 /* Main.storyboard */,
+				2971CEB72054553400342296 /* MenuViewController.swift */,
+				2971CEA7205454BD00342296 /* ViewController.swift */,
 			);
 			path = Example;
 			sourceTree = "<group>";

Example/Example/ViewController.swift

@@ -27,7 +27,7 @@ class ViewController: UIViewController {
         ContextMenu.shared.show(
             sourceViewController: self,
             viewController: MenuViewController(),
-            sourceView: nil
+            sourceView: button
         )
     }
 

Example/Podfile.lock

@@ -9,7 +9,7 @@ EXTERNAL SOURCES:
     :path: ../ContextMenu.podspec
 
 SPEC CHECKSUMS:
-  ContextMenu: 74f68e96197cdbfb1b5d91c703cc0906bc914cfc
+  ContextMenu: f542992e2dd56e8a116a59a2ab5a215637982744
 
 PODFILE CHECKSUM: aa060c7f3a10a9cb8b2633f1297c22bb65e4f54d