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演习代码day1

发布时间:2019-05-02 08:50编辑:集群主机浏览(163)

            delegate.window?.viewWithTag(1)?.removeFromSuperview()

    // 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.

     

         //通过tag 从window移除视图

    greenView.backgroundColor=UIColor.green

            context.setStrokeColor(UIColor.black.cgColor)

            mview.backgroundColor = UIColor(white: 0.5, alpha: 0.8)

    //应用程序加载成功触发那个主意

            let secondP = CGMutablePath()

         //添加tag

    centerView.backgroundColor=UIColor.red

            //设置描线颜色

         let mview = UIView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height:     UIScreen.main.bounds.height))

    let fatherView=centerView.superview

        override func viewDidLoad() {

         //获取delegate

    fatherView?.backgroundColor=UIColor.yellow

            context.addPath(path)

            delegate.window?.addSubview(mview)

    centerView.alpha=1.0

     

     

    //让Window成为应用程序的主窗口,并使其可见

            self.view.addSubview(mview)

         //增加视图

    //想再window对象增加对象,就在这几个措施中实现

    内需承继UIView 重写draw 方法

            

    return true

        }

            mview.tag = 1

    }

            let mview = myView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height))

            let delegate  = UIApplication.shared.delegate as! AppDelegate

    let screenWidth = UIScreen.main.bounds.size.width

        required init?(coder aDecoder: NSCoder) {

     

    self.window?.makeKeyAndVisible()

            //设置线宽

     

    //centerView.clipsToBounds=true

     

    self.window?.rootViewController=UIViewController()

            

    }

        }

    何敏  14:54:55

        }

    let newView2=centerView.viewWithTag(200)

     

    // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.

            context.setLineWidth(10)

    var window: UIWindow?

            // Dispose of any resources that can be recreated.

    self.window?.backgroundColor=#colorLiteral(red: 0.5087699294, green: 0.8069495559, blue: 0.5823518634, alpha: 1)

            path.addLine(to: CGPoint(x: 200, y: 222))

    class AppDelegate: UIResponder, UIApplicationDelegate {

     

    //应用程序就要取消活跃状态是接触

     

    self.window?.addSubview(redView)

    //自定义View

    //UIScreen.main得到显示器对象

            super.init(coder: aDecoder)

    purpleView.backgroundColor=#colorLiteral(red: 0.5568627715, green: 0.3529411852, blue: 0.9686274529, alpha: 1)

     

    //依照tag值获取视图对象

    皇家赌场,}

    //一般应用程序唯有一个window对象

            //创制并设置路径

    // Override point for customization after application launch.

            self.view.addSubview(mview2)

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

            let mview2 = myView(frame: CGRect(x: 0, y:200, width: 300, height: 300))

    func applicationDidBecomeActive(_ application: UIApplication) {

            

    //给window设置跟精算调节器(未来创设理解)

            //获取绘图上下文

    newView.backgroundColor=UIColor.blue

            guard let context = UIGraphicsGetCurrentContext() else { return  }

    }

            self.backgroundColor = UIColor.clear

    greenView.backgroundColor=UIColor.green

     

    self.window?.backgroundColor=#colorLiteral(red: 0.5087699294, green: 0.8069495559, blue: 0.5823518634, alpha: 1)

        override func draw(_ rect: CGRect) {

    var window: UIWindow?

    import UIKit

    newView2?.backgroundColor=UIColor.gray

        override init(frame: CGRect) {

    self.window?.addSubview(blueView)

            

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