Swift 搭建App前期框架

学习一门语言如何快速上手？当然是动手啦！本文教你怎样使用纯代码搭建项目前期的基本框架。自己写一个小项目，练练Swift吧！

• 首先， 需要创建一个工程。

• 所谓工欲善其事，必先利其器，我们做一下前期准备：

  • 1.1 我们创建两个控制器，command+N

    
    image.png

  • 1.2 我们创建一个工具类用于获取UITabBarController

class ZTabBarConfigure: NSObject {
    func configureZTabBarController() -> UITabBarController {
        let zTabBarController: UITabBarController = UITabBarController()
        
        let v1 = OneViewController()
        v1.title = "Home"
        v1.tabBarItem = UITabBarItem (title: "Home", image: UIImage(named: "home"), selectedImage: UIImage(named: "home"))
        let nav1: UINavigationController = UINavigationController(rootViewController: v1)
        
        let v2 = TwoViewController()
        v2.title = "Mine"
        v2.tabBarItem = UITabBarItem.init(title: "Mine", image: UIImage.init(named: "Mine"), selectedImage: UIImage.init(named: "Mine"))
        let nav2: UINavigationController = UINavigationController(rootViewController: v2)
        
        let tabArr = [nav1,nav2]
        zTabBarController.viewControllers = tabArr
        return zTabBarController
    }
}

• 1.3 找到项目的AppDelegate.swift， 添加一个方法:

func setupWindow() {
        window = UIWindow.init(frame: UIScreen.main.bounds)
        window?.backgroundColor = UIColor.white
        window?.makeKeyAndVisible()
        let zTabBarConfigure: ZTabBarConfigure = ZTabBarConfigure()
        let zTabBarController: UITabBarController = zTabBarConfigure.configureZTabBarController()
        window?.rootViewController = zTabBarController
        
        UITabBar.appearance().tintColor = UIColor.red
    }

• 1.4 调用这个方法告诉编译器你的APP入口

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        setupWindow()
        return true
    }

OK，大功告成，模拟器上跑一下，没毛病。

image.png

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