Swift: 你好, UIKit!

概述创建主入口 main.swift: import UIKitUIApplicationMain( Process.argc, Process.unsafeArgv, NSStringFromClass(MainApp), NSStringFromClass(MainAppDelegate)) 创建 app.swift, 对应 MainApp 和 MainAppDelegate 的实现:

创建主入口 main.swift:

import UIKitUIApplicationMain(	Process.argc,Process.unsafeArgv,NsstringFromClass(MainApp),NsstringFromClass(MainAppDelegate))

创建 app.swift,对应 MainApp 和 MainAppDelegate 的实现:

import UIKitclass MainApp: UIApplication {	overrIDe func sendEvent(event: UIEvent) {		super.sendEvent(event)	}}class MainAppDelegate: UIResponder,UIApplicationDelegate {	var window: UIWindow?	func application(app: UIApplication,dIDFinishLaunchingWithOptions opt: [NSObject: AnyObject]?) -> Bool {		self.window = UIWindow(frame: UIScreen.mainScreen().bounds)		self.window!.rootVIEwController = UIVIEwController()		self.window!.backgroundcolor = UIcolor.whitecolor()		self.window!.makeKeyAndVisible()		self.window!.AddSubvIEw {			let label = UILabel(frame: self.window!.frame)			label.textAlignment = .Center			label.text = "你好,UIKit!"			return label		}		return true	}}extension UIVIEw {	func AddSubvIEw(subvIEw: ()->UIVIEw) {		self.addSubvIEw(subvIEw())	}}

运行效果:

总结

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