Swift实现的Yalantis的FoldingTabBar.iOS.
###基础使用Demo:
let tabController:FNFoldingTabBarController = FNFoldingTabBarController.init()
tabController.fn_viewControllers=[vc0, vc1, vc2, vc3]
let naviController = UINavigationController.init(rootViewController: tabController)
self.window!.rootViewController = naviController
self.window!.makeKeyAndVisible()
具体见Demo工程。
###来源: OC原版是 Yalantis 的 FoldingTabBar.iOS