add single tap to dismiss

SKPhotoBrowser/SKZoomingScrollView.swift

@@ -307,7 +307,11 @@ public class SKZoomingScrollView: UIScrollView, UIScrollViewDelegate, SKDetectin
     
     // MARK: - SKDetectingImageViewDelegate
     func handleImageViewSingleTap(touchPoint: CGPoint) {
-        photoBrowser?.performCloseAnimationWithScrollView(self)
+        if photoBrowser!.enableSingleTapDismiss {
+            photoBrowser?.performCloseAnimationWithScrollView(self)
+        } else {
+            photoBrowser?.toggleControls()
+        }
     }
     
     func handleImageViewDoubleTap(touchPoint: CGPoint) {

SKPhotoBrowserExample/SKPhotoBrowserExample/ViewController.swift

@@ -89,6 +89,7 @@ class ViewController: UIViewController, UICollectionViewDataSource, UICollection
         browser.displayDeleteButton = true
         browser.statusBarStyle = .LightContent
         browser.bounceAnimation = true
+//        browser.enableSingleTapDismiss = true
         
         // Can hide the action button by setting to false
         browser.displayAction = true