renamed PageMenuController to TabsController

9f00b30f · Daniel Dahan · da69383e · 9f00b30f · da69383e · 9f00b30f
Commit 9f00b30f authored Apr 24, 2017 by Daniel Dahan
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Showing with 28 additions and 426 deletions

Material.xcodeproj/project.pbxproj
+10 -24

Sources/iOS/PageTabBarController.swift
+0 -384

Sources/iOS/TabsController.swift
+18 -18

No files found.
--- a/Material.xcodeproj/project.pbxproj
+++ b/Material.xcodeproj/project.pbxproj
@@ -7,7 +7,7 @@
 	objects = {
 /* Begin PBXBuildFile section */
-		9606CFAC1E957AC3006B4E74 /* PageMenuController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9606CFAB1E957AC3006B4E74 /* PageMenuController.swift */; };
+		9606CFAC1E957AC3006B4E74 /* TabsController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9606CFAB1E957AC3006B4E74 /* TabsController.swift */; };
 		961409B01E43D15C00E7BA99 /* CollectionViewCard.swift in Headers */ = {isa = PBXBuildFile; fileRef = 961730591E145DE900A9A297 /* CollectionViewCard.swift */; settings = {ATTRIBUTES = (Public, ); }; };
 		961409B11E43D15C00E7BA99 /* FABMenu.swift in Headers */ = {isa = PBXBuildFile; fileRef = 96A183621E0C6CE200083C30 /* FABMenu.swift */; settings = {ATTRIBUTES = (Public, ); }; };
 		961409B21E43D15C00E7BA99 /* FABMenuController.swift in Headers */ = {isa = PBXBuildFile; fileRef = 96A183641E0C6DD400083C30 /* FABMenuController.swift */; settings = {ATTRIBUTES = (Public, ); }; };
@@ -20,7 +20,6 @@
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 		9617B0831DFCA8CF00410F8F /* CaptureController.swift in Headers */ = {isa = PBXBuildFile; fileRef = 96717B0E1DBE6AF600DA84DB /* CaptureController.swift */; settings = {ATTRIBUTES = (Public, ); }; };
 		9617B0861DFCA8CF00410F8F /* HeightPreset.swift in Headers */ = {isa = PBXBuildFile; fileRef = 9626CB9A1DAD3D1D003E2611 /* HeightPreset.swift */; settings = {ATTRIBUTES = (Public, ); }; };
-		9617B0871DFCA8CF00410F8F /* PageTabBarController.swift in Headers */ = {isa = PBXBuildFile; fileRef = 963FBF071D669D14008F8512 /* PageTabBarController.swift */; settings = {ATTRIBUTES = (Public, ); }; };
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 		9617B0891DFCA8CF00410F8F /* PhotoLibraryController.swift in Headers */ = {isa = PBXBuildFile; fileRef = 96717B171DBE6B1800DA84DB /* PhotoLibraryController.swift */; settings = {ATTRIBUTES = (Public, ); }; };
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@@ -80,7 +79,6 @@
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 		965E80F81DD4D59500D61E4B /* ImageCard.swift in Sources */ = {isa = PBXBuildFile; fileRef = 96BCB7621CB40DC500C806FE /* ImageCard.swift */; };
 		965E80F91DD4D59500D61E4B /* PresenterCard.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9631A7C01D95E3AC00CFB109 /* PresenterCard.swift */; };
-		965E80FA1DD4D59500D61E4B /* PageTabBarController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 963FBF071D669D14008F8512 /* PageTabBarController.swift */; };
 		965E80FB1DD4D59500D61E4B /* SearchBar.swift in Sources */ = {isa = PBXBuildFile; fileRef = 96BCB7951CB40DC500C806FE /* SearchBar.swift */; };
 		965E80FC1DD4D59500D61E4B /* SearchBarController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 96BCB7961CB40DC500C806FE /* SearchBarController.swift */; };
 		965E80FD1DD4D59500D61E4B /* Toolbar.swift in Sources */ = {isa = PBXBuildFile; fileRef = 96BCB79F1CB40DC500C806FE /* Toolbar.swift */; };
@@ -190,7 +188,7 @@
 /* End PBXBuildFile section */
 /* Begin PBXFileReference section */
-		9606CFAB1E957AC3006B4E74 /* PageMenuController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PageMenuController.swift; sourceTree = "<group>"; };
+		9606CFAB1E957AC3006B4E74 /* TabsController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TabsController.swift; sourceTree = "<group>"; };
 		961276621DCD8B1800A7D920 /* CharacterAttribute.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CharacterAttribute.swift; sourceTree = "<group>"; };
 		961730591E145DE900A9A297 /* CollectionViewCard.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CollectionViewCard.swift; sourceTree = "<group>"; };
 		961E6BDE1DDA2A95004E6C93 /* Application.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Application.swift; sourceTree = "<group>"; };
@@ -211,7 +209,6 @@
 		96334EF51C8B84660083986B /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		963832361B88DFD80015F710 /* Material.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Material.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		963FBEFC1D669510008F8512 /* Snackbar.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Snackbar.swift; sourceTree = "<group>"; };
-		963FBF071D669D14008F8512 /* PageTabBarController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PageTabBarController.swift; sourceTree = "<group>"; };
 		965532281E47E388005C2792 /* SpringAnimation.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SpringAnimation.swift; sourceTree = "<group>"; };
 		9658F2161CD6FA4700B902C1 /* IconButton.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = IconButton.swift; sourceTree = "<group>"; };
 		966ECF291CF4C20100BB0BDF /* CollectionReusableView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CollectionReusableView.swift; sourceTree = "<group>"; };
@@ -364,15 +361,6 @@
 			name = Height;
 			sourceTree = "<group>";
 		};
-		962DDD071D6FBBB7001C307C /* PageTabMenu */ = {
-			isa = PBXGroup;
-			children = (
-				963FBF071D669D14008F8512 /* PageTabBarController.swift */,
-				9606CFAB1E957AC3006B4E74 /* PageMenuController.swift */,
-			);
-			name = PageTabMenu;
-			sourceTree = "<group>";
-		};
 		962DDD081D6FBBD0001C307C /* BottomTabBar */ = {
 			isa = PBXGroup;
 			children = (
@@ -433,21 +421,22 @@
 			name = Toolbar;
 			sourceTree = "<group>";
 		};
-		963FBF011D6696AB008F8512 /* TabBar */ = {
+		963FBF011D6696AB008F8512 /* Tabs */ = {
 			isa = PBXGroup;
 			children = (
+				9606CFAB1E957AC3006B4E74 /* TabsController.swift */,
 				96BCB79A1CB40DC500C806FE /* TabBar.swift */,
 			);
-			name = TabBar;
+			name = Tabs;
 			sourceTree = "<group>";
 		};
-		963FBF021D6696D0008F8512 /* Menu */ = {
+		963FBF021D6696D0008F8512 /* FABMenu */ = {
 			isa = PBXGroup;
 			children = (
 				96A183621E0C6CE200083C30 /* FABMenu.swift */,
 				96A183641E0C6DD400083C30 /* FABMenuController.swift */,
 			);
-			name = Menu;
+			name = FABMenu;
 			sourceTree = "<group>";
 		};
 		963FBF031D6696EF008F8512 /* SearchBar */ = {
@@ -520,17 +509,16 @@
 				96BCB80B1CB410CC00C806FE /* Device */,
 				96230AB61D6A51FD00AF47DC /* Divider */,
 				96BCB80A1CB410A100C806FE /* Extension */,
+				963FBF021D6696D0008F8512 /* FABMenu */,
 				96BCB8071CB4101C00C806FE /* Font */,
 				9602F00C1DA1163000F3FB79 /* Grid */,
 				9626CBCC1DADA5F1003E2611 /* Height */,
 				96BCB8081CB4105E00C806FE /* Icon */,
 				96BCB80D1CB410FD00C806FE /* Layer */,
 				96BCB8041CB40F6C00C806FE /* Layout */,
-				963FBF021D6696D0008F8512 /* Menu */,
 				96BCB8091CB4107700C806FE /* Motion */,
 				96BCB8011CB40F1700C806FE /* Navigation */,
 				961E6BEF1DDA4B04004E6C93 /* NavigationDrawer */,
-				962DDD071D6FBBB7001C307C /* PageTabMenu */,
 				96717B151DBE6B1800DA84DB /* Photos */,
 				96328B8F1E05B69A009A4C90 /* Reminders */,
 				9626CA951DAB5370003E2611 /* Root */,
@@ -539,7 +527,7 @@
 				963FBEFB1D6694E8008F8512 /* Snackbar */,
 				967A48171D0F424B00B8CEB7 /* StatusBar */,
 				968C99421D36EC9E000074FF /* Switch */,
-				963FBF011D6696AB008F8512 /* TabBar */,
+				963FBF011D6696AB008F8512 /* Tabs */,
 				966ECF2B1CF4C21B00BB0BDF /* Table */,
 				96090B031D9D709E00709CA6 /* TextField */,
 				96BCB80E1CB4110E00C806FE /* TextView */,
@@ -817,7 +805,6 @@
 				9617B0821DFCA8CF00410F8F /* CapturePreview.swift in Headers */,
 				9617B0831DFCA8CF00410F8F /* CaptureController.swift in Headers */,
 				9617B0861DFCA8CF00410F8F /* HeightPreset.swift in Headers */,
-				9617B0871DFCA8CF00410F8F /* PageTabBarController.swift in Headers */,
 				9617B0881DFCA8CF00410F8F /* PhotoLibrary.swift in Headers */,
 				9617B0891DFCA8CF00410F8F /* PhotoLibraryController.swift in Headers */,
 				9617B08A1DFCA8CF00410F8F /* DisplayStyle.swift in Headers */,
@@ -959,7 +946,6 @@
 				965E81221DD4D5C800D61E4B /* TextView.swift in Sources */,
 				965E80E61DD4C55200D61E4B /* Material+Obj-C.swift in Sources */,
 				965E80E71DD4C55200D61E4B /* Material+UIView.swift in Sources */,
-				965E80FA1DD4D59500D61E4B /* PageTabBarController.swift in Sources */,
 				965E80E81DD4C55200D61E4B /* Material+CALayer.swift in Sources */,
 				965E80E91DD4C55200D61E4B /* Material+String.swift in Sources */,
 				965E80F71DD4D59500D61E4B /* Card.swift in Sources */,
@@ -995,7 +981,7 @@
 				965E80D81DD4C50600D61E4B /* Layer.swift in Sources */,
 				965E80D91DD4C50600D61E4B /* Layout.swift in Sources */,
 				965E80DA1DD4C50600D61E4B /* Border.swift in Sources */,
-				9606CFAC1E957AC3006B4E74 /* PageMenuController.swift in Sources */,
+				9606CFAC1E957AC3006B4E74 /* TabsController.swift in Sources */,
 				965E80DB1DD4C50600D61E4B /* InterimSpace.swift in Sources */,
 				965E80DC1DD4C50600D61E4B /* Depth.swift in Sources */,
 				965E80DD1DD4C50600D61E4B /* EdgeInsets.swift in Sources */,

--- a/Sources/iOS/PageTabBarController.swift
+++ b/Sources/iOS/PageTabBarController.swift
-/*
- * Copyright (C) 2015 - 2017, Daniel Dahan and CosmicMind, Inc. <http://cosmicmind.com>.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *	*	Redistributions of source code must retain the above copyright notice, this
- *		list of conditions and the following disclaimer.
- *
- *	*	Redistributions in binary form must reproduce the above copyright notice,
- *		this list of conditions and the following disclaimer in the documentation
- *		and/or other materials provided with the distribution.
- *
- *	*	Neither the name of CosmicMind nor the names of its
- *		contributors may be used to endorse or promote products derived from
- *		this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-import UIKit
-/// A memory reference to the PageTabBarItem instance for UIViewController extensions.
-fileprivate var PageTabBarItemKey: UInt8 = 0
-open class PageTabBarItem: FlatButton {
-    open override func prepare() {
-        super.prepare()
-        pulseAnimation = .none
-    }
-}
-open class PageTabBar: TabBar {
-    open override func prepare() {
-        super.prepare()
-        isLineAnimated = false
-        lineAlignment = .top
-    }
-}
-@objc(PageTabBarAlignment)
-public enum PageTabBarAlignment: Int {
-    case top
-    case bottom
-}
-extension UIViewController {
-    /// PageTabBarItem reference.
-    public private(set) var pageTabBarItem: PageTabBarItem {
-        get {
-            return AssociatedObject(base: self, key: &PageTabBarItemKey) {
-                return PageTabBarItem()
-            }
-        }
-        set(value) {
-            AssociateObject(base: self, key: &PageTabBarItemKey, value: value)
-        }
-    }
-}
-extension UIViewController {
-    /**
-     A convenience property that provides access to the PageTabBarController.
-     This is the recommended method of accessing the PageTabBarController
-     through child UIViewControllers.
-     */
-    public var pageTabBarController: PageTabBarController? {
-        var viewController: UIViewController? = self
-        while nil != viewController {
-            if viewController is PageTabBarController {
-                return viewController as? PageTabBarController
-            }
-            viewController = viewController?.parent
-        }
-        return nil
-    }
-}
-@objc(PageTabBarControllerDelegate)
-public protocol PageTabBarControllerDelegate {
-    /**
-     A delegation method that is executed when a UIViewController did transition to.
-     - Parameter pageTabBarController: A PageTabBarController.
-     - Parameter willTransitionTo viewController: A UIViewController.
-     */
-    @objc
-    optional func pageTabBarController(pageTabBarController: PageTabBarController, didTransitionTo viewController: UIViewController)
-}
-open class PageTabBarController: RootController {
-    /// Reference to the PageTabBar.
-    @IBInspectable
-    open let pageTabBar = PageTabBar()
-    /// A boolean that indicates whether bounce 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
-    /// An internal reference to the selectedIndex.
-    fileprivate var internalSelectedIndex = 0
-    /// The currently selected UIViewController.
-    open var selectedIndex: Int {
-        get {
-            return internalSelectedIndex
-        }
-        set(value) {
-            setInternalSelectedIndex(index: value, animated: true)
-        }
-    }
-    /// PageTabBar alignment setting.
-    open var pageTabBarAlignment = PageTabBarAlignment.bottom
-    /// Delegation handler.
-    open weak var delegate: PageTabBarControllerDelegate?
-    /// A reference to the instance when it is a UIPageViewController.
-    open var pageViewController: UIPageViewController? {
-        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)
-    }
-    public override init(rootViewController: UIViewController) {
-        isBounceEnabled = true
-        super.init(rootViewController: UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil))
-        viewControllers.append(rootViewController)
-        setInternalSelectedIndex(index: 0, animated: true)
-    }
-    public init(viewControllers: [UIViewController], selectedIndex index: Int = 0) {
-        isBounceEnabled = true
-        super.init(rootViewController: UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil))
-        self.viewControllers.append(contentsOf: viewControllers)
-        setInternalSelectedIndex(index: index, animated: true)
-    }
-    open override func viewDidLoad() {
-        super.viewDidLoad()
-        prepare()
-    }
-    open override func layoutSubviews() {
-        super.layoutSubviews()
-        let p = pageTabBar.intrinsicContentSize.height + pageTabBar.layoutEdgeInsets.top + pageTabBar.layoutEdgeInsets.bottom
-        let y = view.height - p
-        pageTabBar.height = p
-        pageTabBar.width = view.width + pageTabBar.layoutEdgeInsets.left + pageTabBar.layoutEdgeInsets.right
-        rootViewController.view.height = y
-        switch pageTabBarAlignment {
-        case .top:
-            pageTabBar.y = 0
-            rootViewController.view.y = p
-        case .bottom:
-            pageTabBar.y = y
-            rootViewController.view.y = 0
-        }
-    }
-    /**
-     Sets the view controllers.
-     - Parameter _ viewController: An Array of UIViewControllers.
-     - Parameter direction: A UIPageViewControllerNavigationDirection enum value.
-     - Parameter animated: A boolean indicating to include animation.
-     - Parameter completion: An optional completion block.
-     */
-    open func setViewControllers(_ viewControllers: [UIViewController], direction: UIPageViewControllerNavigationDirection, animated: Bool, completion: ((Bool) -> Void)? = nil) {
-        pageViewController?.setViewControllers(viewControllers, direction: direction, animated: animated, completion: completion)
-    }
-    /**
-     Prepares the view instance when intialized. When subclassing,
-     it is recommended to override the prepare method
-     to initialize property values and other setup operations.
-     The super.prepare method should always be called immediately
-     when subclassing.
-     */
-    open override func prepare() {
-        super.prepare()
-        preparePageTabBar()
-        preparePageTabBarItems()
-    }
-    open override func prepareRootViewController() {
-        super.prepareRootViewController()
-        guard let v = pageViewController else {
-            return
-        }
-        v.delegate = self
-        v.dataSource = self
-        v.isDoubleSided = false
-        scrollView?.delegate = self
-    }
-    /// Prepares the pageTabBarItems.
-    open func preparePageTabBarItems() {
-        pageTabBar.buttons.removeAll()
-        for x in viewControllers {
-            let button = x.pageTabBarItem as UIButton
-            pageTabBar.buttons.append(button)
-            button.removeTarget(self, action: #selector(handlePageTabBarButton(button:)), for: .touchUpInside)
-            button.addTarget(self, action: #selector(handlePageTabBarButton(button:)), for: .touchUpInside)
-        }
-    }
-}
-extension PageTabBarController {
-    /// Prepares the pageTabBar.
-    fileprivate func preparePageTabBar() {
-        pageTabBar.zPosition = 1000
-        pageTabBar.dividerColor = Color.grey.lighten3
-        view.addSubview(pageTabBar)
-        pageTabBar.select(at: internalSelectedIndex)
-    }
-}
-extension PageTabBarController {
-    /**
-     Handles the pageTabBarButton.
-     - Parameter button: A UIButton.
-     */
-    @objc
-    fileprivate func handlePageTabBarButton(button: UIButton) {
-        guard let index = pageTabBar.buttons.index(of: button) else {
-            return
-        }
-        guard index != internalSelectedIndex else {
-            return
-        }
-        setInternalSelectedIndex(index: index, animated: true)
-    }
-}
-extension PageTabBarController {
-    /**
-     Internally sets the internalSelectedIndex value.
-     - Parameter index: Int.
-     - Parameter animated: Bool.
-     */
-    fileprivate func setInternalSelectedIndex(index: Int, animated: Bool = false) {
-        guard animated else {
-            internalSelectedIndex = index
-            return
-        }
-        let direction: UIPageViewControllerNavigationDirection = index < internalSelectedIndex ? .reverse : .forward
-        isTabSelectedAnimation = true
-        internalSelectedIndex = index
-        pageTabBar.select(at: internalSelectedIndex)
-        setViewControllers([viewControllers[internalSelectedIndex]], direction: direction, animated: true) { [weak self] _ in
-            guard let s = self else {
-                return
-            }
-            s.isTabSelectedAnimation = false
-            s.delegate?.pageTabBarController?(pageTabBarController: s, didTransitionTo: s.viewControllers[s.internalSelectedIndex])
-        }
-    }
-}
-extension PageTabBarController: UIPageViewControllerDelegate {
-    open func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
-        guard let v = pageViewController.viewControllers?.first else {
-            return
-        }
-        guard let index = viewControllers.index(of: v) else {
-            return
-        }
-        setInternalSelectedIndex(index: index)
-        pageTabBar.select(at: index)
-        if finished && completed {
-            delegate?.pageTabBarController?(pageTabBarController: self, didTransitionTo: v)
-        }
-    }
-}
-extension PageTabBarController: UIPageViewControllerDataSource {
-    open func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
-        guard let current = viewControllers.index(of: viewController) else {
-            return nil
-        }
-        let previous = current - 1
-        guard previous >= 0 else {
-            return nil
-        }
-        return viewControllers[previous]
-    }
-    open func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
-        guard let current = viewControllers.index(of: viewController) else {
-            return nil
-        }
-        let next = current + 1
-        guard viewControllers.count > next else {
-            return nil
-        }
-        return viewControllers[next]
-    }
-}
-extension PageTabBarController: UIScrollViewDelegate {
-    open func scrollViewDidScroll(_ scrollView: UIScrollView) {
-        guard !pageTabBar.isAnimating else {
-            return
-        }
-        guard !isTabSelectedAnimation else {
-            return
-        }
-        guard let selected = pageTabBar.selected else {
-            return
-        }
-        guard 0 < view.width else {
-            return
-        }
-        let x = (scrollView.contentOffset.x - view.width) / scrollView.contentSize.width * view.width
-        pageTabBar.line.center.x = selected.center.x + x
-    }
-}
--- a/Sources/iOS/PageMenuController.swift
+++ b/Sources/iOS/PageMenuController.swift
@@ -30,10 +30,10 @@
 import UIKit
-/// A memory reference to the PageMenuBarItem instance for UIViewController extensions.
+/// A memory reference to the TabsBarItem instance for UIViewController extensions.
-fileprivate var PageMenuBarItemKey: UInt8 = 0
+fileprivate var TabsBarItemKey: UInt8 = 0
-open class PageMenuBarItem: FlatButton {
+open class TabsBarItem: FlatButton {
    open override func prepare() {
        super.prepare()
        pulseAnimation = .none
@@ -49,29 +49,29 @@ public enum TabBarAlignment: Int {
 extension UIViewController {
    /// pageMenuBarItem reference.
-    public private(set) var pageMenuBarItem: PageMenuBarItem {
+    public private(set) var pageMenuBarItem: TabsBarItem {
        get {
-            return AssociatedObject(base: self, key: &PageMenuBarItemKey) {
+            return AssociatedObject(base: self, key: &TabsBarItemKey) {
-                return PageMenuBarItem()
+                return TabsBarItem()
            }
        }
        set(value) {
-            AssociateObject(base: self, key: &PageMenuBarItemKey, value: value)
+            AssociateObject(base: self, key: &TabsBarItemKey, value: value)
        }
    }
 }
 extension UIViewController {
    /**
-     A convenience property that provides access to the PageMenuController.
+     A convenience property that provides access to the TabsController.
-     This is the recommended method of accessing the PageMenuController
+     This is the recommended method of accessing the TabsController
     through child UIViewControllers.
     */
-    public var pageMenuController: PageMenuController? {
+    public var pageMenuController: TabsController? {
        var viewController: UIViewController? = self
        while nil != viewController {
-            if viewController is PageMenuController {
+            if viewController is TabsController {
-                return viewController as? PageMenuController
+                return viewController as? TabsController
            }
            viewController = viewController?.parent
        }
@@ -79,7 +79,7 @@ extension UIViewController {
    }
 }
-open class PageMenuController: UIViewController {
+open class TabsController: UIViewController {
    /// A reference to the currently selected view controller index value.
    @IBInspectable
    open var selectedIndex = 0
@@ -186,7 +186,7 @@ open class PageMenuController: UIViewController {
    }
 }
-extension PageMenuController {
+extension TabsController {
    /// Prepares the scrollView used to pan through view controllers.
    fileprivate func prepareScrollView() {
        scrollView.delegate = self
@@ -302,7 +302,7 @@ extension PageMenuController {
    }
 }
-extension PageMenuController {
+extension TabsController {
    fileprivate func layoutScrollView() {
        let w = view.bounds.width
        scrollView.contentSize = CGSize(width: w * CGFloat(viewControllers.count), height: scrollView.height)
@@ -393,7 +393,7 @@ extension PageMenuController {
    }
 }
-extension PageMenuController {
+extension TabsController {
    /// Removes the view controllers not within the scrollView.
    fileprivate func removeViewControllers() {
        let n = viewControllers.count
@@ -451,7 +451,7 @@ extension PageMenuController {
    }
 }
-extension PageMenuController {
+extension TabsController {
    /**
     Handles the pageTabBarButton.
     - Parameter button: A UIButton.
@@ -482,7 +482,7 @@ extension PageMenuController {
    }
 }
-extension PageMenuController: UIScrollViewDelegate {
+extension TabsController: UIScrollViewDelegate {
    @objc
    open func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
        let w = scrollView.width