fix #16: fix demo project

Author: malcommac

ScrollStackController.xcodeproj/project.xcworkspace/xcuserdata/daniele.xcuserdatad/UserInterfaceState.xcuserstate

@@ -24,13 +24,7 @@ public class NotesVC: UIViewController, ScrollStackContainableController {
     }
 
     public func scrollStackRowSizeForAxis(_ axis: NSLayoutConstraint.Axis, row: ScrollStackRow, in stackView: ScrollStack) -> ScrollStack.ControllerSize? {
-        let size = CGSize(width: stackView.bounds.size.width, height: 9000)
-        var best = self.view.systemLayoutSizeFitting(size, withHorizontalFittingPriority: .required, verticalFittingPriority: .defaultLow)
-        best.height += 20 // just some offset for UITextView insets
-        // NOTE:
-        // it's important to set both the height constraint and bottom safe constraints to safe area for textview,
-        // otherwise growing does not work.
-        return .fixed(best.height)
+        return .fitLayoutForAxis
     }
 
 

ScrollStackControllerDemo/Child View Controllers/NotesVC.swift

@@ -50,7 +50,7 @@ public class TagsVC: UIViewController, ScrollStackContainableController {
 
     public func scrollStackRowSizeForAxis(_ axis: NSLayoutConstraint.Axis, row: ScrollStackRow, in stackView: ScrollStack) -> ScrollStack.ControllerSize? {
         collectionView.layoutIfNeeded()
-        return (isExpanded == false ? .fixed(130) : .fixed(130 + collectionView.contentSize.height + 20))
+        return (isExpanded == false ? .fixed(150) : .fixed(150 + collectionView.contentSize.height + 20))
     }
 
     public func reloadContentFromStackView(stackView: ScrollStack, row: ScrollStackRow, animated: Bool) {

ScrollStackControllerDemo/Child View Controllers/TagsVC.swift

@@ -63,17 +63,13 @@ class ViewController: UIViewController, ScrollStackControllerDelegate {
          plainView.heightAnchor.constraint(equalToConstant: 300).isActive = true
          stackView.addRow(view: plainView)
         */
-        
-        stackView.addRows(controllers: [welcomeVC, notesVC/*, tagsVC, galleryVC, pricingVC*/], animated: false)
+        stackView.addRows(controllers: [welcomeVC, notesVC, tagsVC, galleryVC, pricingVC], animated: false)
     }
 
     @IBAction public func addNewRow() {
-        stackView.addRows(controllers: [tagsVC, galleryVC, pricingVC], animated: false)
-
-        
-//        let galleryVC = GalleryVC.create()
-//        stackView.scrollToTop()
-//        stackView.addRow(controller: galleryVC, at: .top, animated: true)
+        let galleryVC = GalleryVC.create()
+        stackView.scrollToTop()
+        stackView.addRow(controller: galleryVC, at: .top, animated: true)
     }
 
     @IBAction public func hideOrShowRandomRow() {