标题

importUIKit

@UIApplicationMain

classAppDelegate:UIResponder,UIApplicationDelegate{

varwindow:UIWindow?

funcapplication(application:UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject:AnyObject]?) ->Bool{

let mainTarBarController =UITabBarController()

let firstVC =ViewController()

let secondVC =SecondViewController()

let thirdVC =thirdViewController()

let forthVC =forthViewController()

let fifthVC =fifthViewController()

let sixVC =sixthViewController()

//let ViewC = ViewController()

letfirstnavc =UINavigationController(rootViewController:firstVC)

window?.rootViewController= firstnavc

letsecondnavc =UINavigationController(rootViewController: secondVC)

letthirdnavc =UINavigationController(rootViewController: thirdVC)

//window?.makeKeyAndVisible()

//mainTarBarController.s

mainTarBarController.viewControllers= [firstnavc,secondnavc,thirdnavc,forthVC,fifthVC,sixVC]

mainTarBarController.delegate=self

firstnavc.tabBarItem.title="首页"

secondnavc.tabBarItem.title="周边"

thirdnavc.tabBarItem.title="我的"

forthVC.tabBarItem.title="forth"

fifthVC.tabBarItem.title="fifth"

sixVC.tabBarItem.title="sixth"

window=UIWindow(frame:UIScreen.mainScreen().bounds)

window?.backgroundColor=UIColor.whiteColor()

window?.rootViewController= mainTarBarController

window?.makeKeyAndVisible()

return true

}

}

extension AppDelegate:UITabBarControllerDelegate{

func tabBarController(tabBarController:UITabBarController,didSelectViewController

ViewController:UIViewController){

print(tabBarController.selectedIndex)

print(ViewController)

}

}