import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
self.window = UIWindow(frame:UIScreen.main.bounds)
self.window?.backgroundColor = UIColor.white
self.window?.makeKeyAndVisible()
self.window?.rootViewController = UIViewController()
let redView = UIView(frame:CGRect(x: 0, y: 161, width: 414, height: 414))
redView.backgroundColor = UIColor.red
redView.tag = 200
redView.layer.cornerRadius = 207
self.window?.addSubview(redView)
let orangeView = UIView(frame:CGRect(x: 25, y: 186, width: 364, height: 364))
orangeView.backgroundColor = UIColor.orange
orangeView.tag = 201
orangeView.layer.cornerRadius = 182
self.window?.addSubview(orangeView)
let yellowView = UIView(frame:CGRect(x: 50, y: 211, width: 314, height: 314))
yellowView.backgroundColor = UIColor.yellow
yellowView.tag = 202
yellowView.layer.cornerRadius = 157
self.window?.addSubview(yellowView)
let greenView = UIView(frame:CGRect(x: 75, y: 236, width: 264, height: 264))
greenView.backgroundColor = UIColor.green
greenView.tag = 203
greenView.layer.cornerRadius = 132
self.window?.addSubview(greenView)
let youngView = UIView(frame:CGRect(x: 100, y: 261, width: 214, height: 214))
youngView.backgroundColor = #colorLiteral(red: 0.4513868093, green: 0.9930960536, blue: 1, alpha: 1)
youngView.tag = 204
youngView.layer.cornerRadius = 107
self.window?.addSubview(youngView)
let blueView = UIView(frame:CGRect(x: 125, y: 286, width: 164, height: 164))
blueView.backgroundColor = #colorLiteral(red: 0.2392156869, green: 0.6745098233, blue: 0.9686274529, alpha: 1)
blueView.tag = 205
blueView.layer.cornerRadius = 82
self.window?.addSubview(blueView)
let purpleView = UIView(frame:CGRect(x: 150, y: 311, width: 114, height: 114))
purpleView.backgroundColor = #colorLiteral(red: 0.5568627715, green: 0.3529411852, blue: 0.9686274529, alpha: 1)
purpleView.tag = 206
purpleView.layer.cornerRadius = 57
self.window?.addSubview(purpleView)
//定时执行的间隔 目标对象 目标对象选择执行的方法 用户信息nil 是否重复
Timer.scheduledTimer(timeInterval: 0.3, target: self, selector: #selector(changeColor), userInfo: nil, repeats: true)
return true
}
//MARK：定制器找的目标对象执行方法
func changeColor(){
let redView = self.window?.viewWithTag(200)
//存储redView的背景颜色
let color = redView?.backgroundColor
self.window?.viewWithTag(200)?.backgroundColor = self.window?.viewWithTag(201)?.backgroundColor
self.window?.viewWithTag(201)?.backgroundColor = self.window?.viewWithTag(202)?.backgroundColor
self.window?.viewWithTag(202)?.backgroundColor = self.window?.viewWithTag(203)?.backgroundColor
self.window?.viewWithTag(203)?.backgroundColor = self.window?.viewWithTag(204)?.backgroundColor
self.window?.viewWithTag(204)?.backgroundColor = self.window?.viewWithTag(205)?.backgroundColor
self.window?.viewWithTag(205)?.backgroundColor = self.window?.viewWithTag(206)?.backgroundColor
self.window?.viewWithTag(206)?.backgroundColor = self.window?.viewWithTag(200)?.backgroundColor
}
func applicationWillResignActive(_ application: UIApplication) {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
}
func applicationDidEnterBackground(_ application: UIApplication) {
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}
func applicationWillEnterForeground(_ application: UIApplication) {
// Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}
func applicationDidBecomeActive(_ application: UIApplication) {
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}
func applicationWillTerminate(_ application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}
}