1.首先创建两个ViewController
HomeViewController 和 PageViewController
2.创建一个TabBarViewController继承自UITabBarController ，在TabBarController类里创建tabbar的子控制器
class TabBarViewController: UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor.white
creatSubViewController()
}
func creatSubViewController() {
let homeVC = HomeViewController()
homeVC.title = "首页"
let nav = UINavigationController(rootViewController: homeVC)
nav.tabBarItem.image = UIImage(named: "weidianji")
nav.tabBarItem.selectedImage = UIImage(named: "zhuye")
let pageVC = PageViewController()
pageVC.title = "我的"
pageVC.tabBarItem.image = UIImage(named: "wode-1")
pageVC.tabBarItem.selectedImage = UIImage(named: "wode")
let tabArr = [nav,pageVC]
viewControllers = tabArr
}
}
3.在AppDelegate类里指定TabBarController为根视图
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
window = UIWindow(frame: UIScreen.main.bounds)
let vc = TabBarViewController()
window?.rootViewController = vc
window?.makeKeyAndVisible()
return true
}
效果图如下：
Simulator Screen Shot - iPhone 8 Plus - 2017-11-28 at 10.17.32.png
