development: preparation for latest release

README.md

@@ -4,6 +4,10 @@
 
 Material is an animation and graphics framework that is used to create beautiful applications.
 
+![Material Sample](http://cosmicmind.io/samples/github/page-tab-bar-controller.png)
+
+* [Download the latest sample](https://github.com/CosmicMind/Samples/tree/master/Graph/CardTableView).
+
 ## About Material 2
 
 The first version of Material was to bring Material Design to iOS. We considered that a great starting point, but not the entire story. Material 2 is the next chapter, which goes deeper into iOS with refined APIs that simplify Architecture, Photo Library, Reminders, Text Editing, Photo & Video, and much more. In addition to Material Design, we love Apple’s flat UI. Having this in mind, we made it possible to accomplish both UI styles with ease.

Sources/iOS/Card.swift

@@ -193,63 +193,14 @@ open class Card: PulseView {
     
     /// Reloads the layout.
     open func reload() {
-        // Clear constraints so new ones do not conflict.
-        container.removeConstraints(container.constraints)
+        var h: CGFloat = 0
         
-        var format = "V:|"
-        var views = [String: Any]()
-        var metrics = [String: Any]()
+        h = prepare(view: toolbar, with: toolbarEdgeInsets, from: h)
+        h = prepare(view: contentView, with: contentViewEdgeInsets, from: h)
+        h = prepare(view: bottomBar, with: bottomBarEdgeInsets, from: h)
         
-        if let v = toolbar {
-            metrics["toolbarTop"] = toolbarEdgeInsets.top
-            metrics["toolbarBottom"] = toolbarEdgeInsets.bottom
-            
-            format += "-(toolbarTop)-[toolbar]-(toolbarBottom)"
-            views["toolbar"] = v
-            container.layout(v).horizontally(left: toolbarEdgeInsets.left, right: toolbarEdgeInsets.right)
-        }
-        
-        if let v = contentView {
-            metrics["contentViewBottom"] = contentViewEdgeInsets.bottom
-            
-            if nil != toolbar {
-                metrics["toolbarBottom"] = (metrics["toolbarBottom"] as! CGFloat) + contentViewEdgeInsets.top
-                format += "-[contentView]-(contentViewBottom)"
-            } else {
-                metrics["contentViewTop"] = contentViewEdgeInsets.top
-                format += "-(contentViewTop)-[contentView]-(contentViewBottom)"
-            }
-            
-            views["contentView"] = v
-            container.layout(v).horizontally(left: contentViewEdgeInsets.left, right: contentViewEdgeInsets.right)
-            
-            v.grid.reload()
-            v.divider.reload()
-        }
-        
-        if let v = bottomBar {
-            metrics["bottomBarBottom"] = bottomBarEdgeInsets.bottom
-            
-            if nil != contentView {
-                metrics["contentViewBottom"] = (metrics["contentViewBottom"] as! CGFloat) + bottomBarEdgeInsets.top
-                format += "-[bottomBar]-(bottomBarBottom)"
-            } else if nil != toolbar {
-                metrics["toolbarBottom"] = (metrics["toolbarBottom"] as! CGFloat) + bottomBarEdgeInsets.top
-                format += "-[bottomBar]-(bottomBarBottom)"
-            } else {
-                metrics["bottomBarTop"] = bottomBarEdgeInsets.top
-                format += "-(bottomBarTop)-[bottomBar]-(bottomBarBottom)"
-            }
-            
-            views["bottomBar"] = v
-            container.layout(v).horizontally(left: bottomBarEdgeInsets.left, right: bottomBarEdgeInsets.right)
-        }
-        
-        guard 0 < views.count else {
-            return
-        }
-        
-        container.addConstraints(Layout.constraint(format: "\(format)-|", options: [], metrics: metrics, views: views))
+        container.height = h
+        bounds.size.height = h
     }
     
     /**
@@ -274,6 +225,7 @@ open class Card: PulseView {
      - Parameter from top: A CGFloat.
      - Returns: A CGFloat.
      */
+    @discardableResult
     open func prepare(view: UIView?, with insets: EdgeInsets, from top: CGFloat) -> CGFloat {
         guard let v = view else {
             return top

Sources/iOS/ImageCard.swift

@@ -76,12 +76,15 @@ open class ImageCard: Card {
         
         h = prepare(view: imageView, with: imageViewEdgeInsets, from: h)
         
-        h = prepare(view: toolbar, with: toolbarEdgeInsets, from: h)
+        if let v = toolbar {
+            prepare(view: v, with: toolbarEdgeInsets, from: h)
+            v.y = .top == toolbarAlignment ? 0 : h - v.height
+        }
         
         h = prepare(view: contentView, with: contentViewEdgeInsets, from: h)
         h = prepare(view: bottomBar, with: bottomBarEdgeInsets, from: h)
         
         container.height = h
-        height = h
+        bounds.size.height = h
     }
 }

Sources/iOS/PageTabBarController.swift

@@ -103,6 +103,13 @@ open class PageTabBarController: RootController {
     /// Reference to the PageTabBar.
     open private(set) lazy var pageTabBar: PageTabBar = PageTabBar()
     
+    /// A boolean that indicates whether bounds is enabled.
+    open var isBounceEnabled: Bool {
+        didSet {
+            scrollView?.bounces = isBounceEnabled
+        }
+    }
+    
     /// Indicates that the tab has been pressed and animating.
     open internal(set) var isTabSelectedAnimation = false
     
@@ -120,15 +127,32 @@ open class PageTabBarController: RootController {
         return rootViewController as? UIPageViewController
     }
     
+    /// A reference to the scrollView.
+    open var scrollView: UIScrollView? {
+        guard let v = pageViewController else {
+            return nil
+        }
+        
+        for view in v.view.subviews {
+            if let v = view as? UIScrollView {
+                return v
+            }
+        }
+        
+        return nil
+    }
+    
     /// A reference to the UIViewControllers.
     open var viewControllers = [UIViewController]()
     
     public required init?(coder aDecoder: NSCoder) {
+        isBounceEnabled = true
         super.init(coder: aDecoder)
         prepare()
     }
     
     public override init(rootViewController: UIViewController) {
+        isBounceEnabled = true
         super.init(rootViewController: UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil))
         viewControllers.append(rootViewController)
         setViewControllers(viewControllers, direction: .forward, animated: true)
@@ -136,6 +160,7 @@ open class PageTabBarController: RootController {
     }
     
     public init(viewControllers: [UIViewController], selectedIndex: Int) {
+        isBounceEnabled = true
         super.init(rootViewController: UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil))
         self.selectedIndex = selectedIndex
         self.viewControllers.append(contentsOf: viewControllers)
@@ -189,7 +214,7 @@ open class PageTabBarController: RootController {
         preparePageTabBarItems()
     }
     
-    override func prepareRootViewController() {
+    open override func prepareRootViewController() {
         super.prepareRootViewController()
         
         guard let v = pageViewController else {
@@ -200,11 +225,7 @@ open class PageTabBarController: RootController {
         v.dataSource = self
         v.isDoubleSided = false
         
-        for view in v.view.subviews {
-            if let v = view as? UIScrollView {
-                v.delegate = self
-            }
-        }
+        scrollView?.delegate = self
     }
     
     /// Prepares the pageTabBarItems.
@@ -260,7 +281,7 @@ open class PageTabBarController: RootController {
 }
 
 extension PageTabBarController: UIPageViewControllerDelegate {
-    public func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
+    open func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
         guard let v = pageViewController.viewControllers?.first else {
             return
         }
@@ -279,7 +300,7 @@ extension PageTabBarController: UIPageViewControllerDelegate {
 }
 
 extension PageTabBarController: UIPageViewControllerDataSource {
-    public func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
+    open func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
         guard let current = viewControllers.index(of: viewController) else {
             return nil
         }
@@ -293,7 +314,7 @@ extension PageTabBarController: UIPageViewControllerDataSource {
         return viewControllers[previous]
     }
     
-    public func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
+    open func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
         guard let current = viewControllers.index(of: viewController) else {
             return nil
         }
@@ -309,7 +330,7 @@ extension PageTabBarController: UIPageViewControllerDataSource {
 }
 
 extension PageTabBarController: UIScrollViewDelegate {
-    public func scrollViewDidScroll(_ scrollView: UIScrollView) {
+    open func scrollViewDidScroll(_ scrollView: UIScrollView) {
         guard !pageTabBar.isAnimating else {
             return
         }

Sources/iOS/PresenterCard.swift

@@ -68,6 +68,6 @@ open class PresenterCard: Card {
         h = prepare(view: bottomBar, with: bottomBarEdgeInsets, from: h)
         
         container.height = h
-        height = h
+        bounds.size.height = h
     }
 }

Sources/iOS/Toolbar.swift

@@ -148,6 +148,7 @@ open class Toolbar: Bar {
      */
 	open override func prepare() {
 		super.prepare()
+        zPosition = 1000
         contentViewAlignment = .center
 		prepareTitleLabel()
 		prepareDetailLabel()

Sources/iOS/ToolbarController.swift

@@ -203,7 +203,6 @@ open class ToolbarController: StatusBarController {
 	/// Prepares the toolbar.
 	private func prepareToolbar() {
         toolbar.depthPreset = .depth1
-        toolbar.zPosition = 1000
         view.addSubview(toolbar)
 	}
 }