Merge pull request #157 from kozyty/master

Add ItemView UIActivityViewController via longPress

Example/ViewController.swift

@@ -108,6 +108,7 @@ class ViewController: UIViewController {
 
             GalleryConfigurationItem.swipeToDismissMode(.vertical),
             GalleryConfigurationItem.toggleDecorationViewsBySingleTap(false),
+            GalleryConfigurationItem.activityViewByLongPress(false),
 
             GalleryConfigurationItem.overlayColor(UIColor(white: 0.035, alpha: 1)),
             GalleryConfigurationItem.overlayColorOpacity(1),

ImageViewer/Source/GalleryConfiguration.swift

@@ -63,6 +63,9 @@ public enum GalleryConfigurationItem {
     ///Allows to turn on/off decoration views hiding via single tap.
     case toggleDecorationViewsBySingleTap(Bool)
 
+    ///Allows to uiactivityviewcontroller with itemview via long press.
+    case activityViewByLongPress(Bool)
+
     /// Allows you to select between different types of initial gallery presentation style
     case presentationStyle(GalleryPresentationStyle)
 

ImageViewer/Source/GalleryViewController.swift

@@ -7,6 +7,7 @@
 //
 
 import UIKit
+import AVFoundation
 
 open class GalleryViewController: UIPageViewController, ItemControllerDelegate {
 
@@ -652,6 +653,23 @@ open class GalleryViewController: UIPageViewController, ItemControllerDelegate {
         self.decorationViewsHidden.flip()
         animateDecorationViews(visible: !self.decorationViewsHidden)
     }
+
+    open func itemControllerDidLongPress(_ controller: ItemController, in item: ItemView) {
+        switch (controller, item) {
+
+        case (_ as ImageViewController, let item as UIImageView):
+            guard let image = item.image else { return }
+            let activityVC = UIActivityViewController(activityItems: [image], applicationActivities: nil)
+            self.present(activityVC, animated: true)
+
+        case (_ as VideoViewController, let item as VideoView):
+            guard let videoUrl = ((item.player?.currentItem?.asset) as? AVURLAsset)?.url else { return }
+            let activityVC = UIActivityViewController(activityItems: [videoUrl], applicationActivities: nil)
+            self.present(activityVC, animated: true)
+
+        default:  return
+        }
+    }
 
     public func itemController(_ controller: ItemController, didSwipeToDismissWithDistanceToEdge distance: CGFloat) {
 

ImageViewer/Source/ItemBaseController.swift

@@ -48,9 +48,11 @@ open class ItemBaseController<T: UIView>: UIViewController, ItemController, UIGe
     fileprivate var displacementInsetMargin: CGFloat = 50
     fileprivate var swipeToDismissMode = GallerySwipeToDismissMode.always
     fileprivate var toggleDecorationViewBySingleTap = true
+    fileprivate var activityViewByLongPress = true
 
     /// INTERACTIONS
     fileprivate var singleTapRecognizer: UITapGestureRecognizer?
+    fileprivate var longPressRecognizer: UILongPressGestureRecognizer?
     fileprivate let doubleTapRecognizer = UITapGestureRecognizer()
     fileprivate let swipeToDismissRecognizer = UIPanGestureRecognizer()
 
@@ -84,6 +86,7 @@ open class ItemBaseController<T: UIView>: UIViewController, ItemController, UIGe
             case .displacementInsetMargin(let margin):              displacementInsetMargin = margin
             case .swipeToDismissMode(let mode):                     swipeToDismissMode = mode
             case .toggleDecorationViewsBySingleTap(let enabled):    toggleDecorationViewBySingleTap = enabled
+            case .activityViewByLongPress(let enabled):             activityViewByLongPress = enabled
             case .spinnerColor(let color):                          activityIndicatorView.color = color
             case .spinnerStyle(let style):                          activityIndicatorView.activityIndicatorViewStyle = style
 
@@ -154,6 +157,16 @@ open class ItemBaseController<T: UIView>: UIViewController, ItemController, UIGe
             self.singleTapRecognizer = singleTapRecognizer
         }
 
+        if activityViewByLongPress == true {
+
+          let longPressRecognizer = UILongPressGestureRecognizer()
+
+          longPressRecognizer.addTarget(self, action: #selector(scrollViewDidLongPress))
+          scrollView.addGestureRecognizer(longPressRecognizer)
+
+          self.longPressRecognizer = longPressRecognizer
+        }
+
         if swipeToDismissMode != .never {
 
             swipeToDismissRecognizer.addTarget(self, action: #selector(scrollViewDidSwipeToDismiss))
@@ -256,6 +269,11 @@ open class ItemBaseController<T: UIView>: UIViewController, ItemController, UIGe
         self.delegate?.itemControllerDidSingleTap(self)
     }
 
+    @objc func scrollViewDidLongPress() {
+
+        self.delegate?.itemControllerDidLongPress(self, in: itemView)
+    }
+
     @objc func scrollViewDidDoubleTap(_ recognizer: UITapGestureRecognizer) {
 
         let touchPoint = recognizer.location(ofTouch: 0, in: itemView)
@@ -527,7 +545,7 @@ open class ItemBaseController<T: UIView>: UIViewController, ItemController, UIGe
                     if UIApplication.isPortraitOnly == true {
                         self?.itemView.transform = deviceRotationTransform()
                     }
-                    
+
                     //position the image view to starting center
                     self?.itemView.bounds = displacedView.bounds
                     self?.itemView.center = displacedView.convert(displacedView.boundsCenter, to: self!.view)

ImageViewer/Source/ItemControllerDelegate.swift

@@ -19,6 +19,7 @@ public protocol ItemControllerDelegate: class {
     func itemControllerDidFinishSwipeToDismissSuccessfully()
 
     func itemControllerDidSingleTap(_ controller: ItemController)
+    func itemControllerDidLongPress(_ controller: ItemController, in item: ItemView)
 
     func itemControllerWillAppear(_ controller: ItemController)
     func itemControllerWillDisappear(_ controller: ItemController)