Swift UITabBarController 基本用法

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////  MainTabBarVC.swift//  TsOneS////  Created by xubaoji on 16/3/7.//  Copyright © 2016年 xubaoji. All rights reserved.//import UIKitclass MainTabBarVC: UITabBarController {    override func viewDidLoad() {        super.viewDidLoad()        // Do any additional setup after loading the view.        createControllers()    }    override func didReceiveMemoryWarning() {        super.didReceiveMemoryWarning()        // Dispose of any resources that can be recreated.    }        func createControllers()    {        createNavigationController(HomeViewController(),            title: "首页",            imageName: "icon_homepage_normal",            selectedImageName: "icon_homepage_selected")                createNavigationController(GoodsViewController(),            title: "值得买",            imageName: "icon_worthbuy_normal",            selectedImageName: "icon_worthbuy_selected")                createNavigationController(OtherViewController(),            title: "值得去",            imageName: "icon_worthgo_normal",            selectedImageName: "icon_worthgo_selected")                createNavigationController(ZhuantiViewController(),            title: "值得看",            imageName: "icon_worthlook_normal",            selectedImageName: "icon_worthlook_selected")                createNavigationController(UserViewController(),            title: "我的",            imageName: "icon_mine_normal",            selectedImageName: "icon_mine_selected")                let attributes = [NSForegroundColorAttributeName : APP_COLOR_PINK_1]        UITabBarItem.appearance().setTitleTextAttributes(attributes, forState: .Selected)    }        func createNavigationController(vc:UIViewController ,                                    title: String,                                    imageName: String,                                    selectedImageName: String)    {        let selectImg = UIImage(named: selectedImageName)?.imageWithRenderingMode(.AlwaysOriginal)                vc.tabBarItem = UITabBarItem(title: title,                                     image: UIImage(named: imageName),                             selectedImage:selectImg)               let nav = UINavigationController(rootViewController: vc)                self.addChildViewController(nav)    }        /*最基本的写法        func createControllersBasic(){        let vc1 = HomeViewController()        vc1.tabBarItem = UITabBarItem(title: "首页",            image: UIImage(named: "icon_tabbar_homepage"),            selectedImage: UIImage(named: "icon_tabbar_homepage_selected"))        let nav1 = UINavigationController(rootViewController: vc1)                let vc2 = HomeViewController()        vc2.tabBarItem = UITabBarItem(title: "商家",            image: UIImage(named: "icon_tabbar_merchant_normal"),            selectedImage: UIImage(named: "icon_tabbar_merchant_selected"))        let nav2 = UINavigationController(rootViewController: vc2)                let vc3 = HomeViewController()        vc3.tabBarItem = UITabBarItem(title: "我的",            image: UIImage(named: "icon_tabbar_mine"),            selectedImage: UIImage(named: "icon_tabbar_mine_selected"))        let nav3 = UINavigationController(rootViewController: vc3)                let vc4 = HomeViewController()        vc4.tabBarItem = UITabBarItem(title: "更多",            image: UIImage(named: "icon_tabbar_misc"),            selectedImage: UIImage(named: "icon_tabbar_misc_selected"))        let nav4 = UINavigationController(rootViewController: vc4)                self.viewControllers = [nav1,nav2,nav3,nav4]    }    */}

swift3.0

func createControllers()    {        createNavigationController(vc: HomeViewController(),                                   title: "首页",                                   imageName: "icon_homepage_normal",                                   selectedImageName: "icon_homepage_selected")                createNavigationController(vc: GoodsViewController(),                                   title: "值得买",                                   imageName: "icon_worthbuy_normal",                                   selectedImageName: "icon_worthbuy_selected")                createNavigationController(vc: OtherViewController(),                                   title: "值得去",                                   imageName: "icon_worthgo_normal",                                   selectedImageName: "icon_worthgo_selected")                createNavigationController(vc: ZhuantiViewController(),                                   title: "值得看",                                   imageName: "icon_worthlook_normal",                                   selectedImageName: "icon_worthlook_selected")                createNavigationController(vc: UserViewController(),                                   title: "我的",                                   imageName: "icon_mine_normal",                                   selectedImageName: "icon_mine_selected")                let attributes = [NSForegroundColorAttributeName : UIColor.black]        UITabBarItem.appearance().setTitleTextAttributes(attributes, for: UIControlState.selected)    }        func createNavigationController(vc:UIViewController ,                                    title: String,                                    imageName: String,                                    selectedImageName: String)    {        let selectImg = UIImage(named: selectedImageName)?.withRenderingMode(UIImageRenderingMode.alwaysOriginal)                vc.tabBarItem = UITabBarItem(title: title,                                     image: UIImage(named: imageName),                                     selectedImage:selectImg)                let nav = UINavigationController(rootViewController: vc)                self.addChildViewController(nav)    }

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