swift中的block

来源：互联网发布：揭东军埔淘宝村编辑：程序博客网时间：2024/06/06 13:11

protocol StopTimer {

    func stopTimer();
}

typealias InputClosureType = (String) -> Void

class ViewController: UIViewController,StopTimer {

    var button:UIButton? = nil;


    var timer:Timer? = nil


    typealias FuncTest = (Int)->Int;

    var number:NSInteger = 60;

    var stop:StopTimer? = nil;


    func kj(_ name:String){}


    var m:((_ custom:String)->String)?


//        print("--=-=-=-=-=-",KM);






    var ms:((_ name:String)->Int)?;




//    var m :FuncTest?=nil;

//    var m = FuncTest;



    var testBlock:((_ kl:String)->(Int))?;



//    typealias funBlock = (_ number:Int)->Int;

    @IBOutlet weak var animateLabel: UILabel!

    func names(_ mg:(Int)){

        print("block====%@",mg);


    };


    var callBack = names;


    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.


        button = UIButton(frame: CGRect(x: 20, y: 40, width: 150, height: 200));

        button?.backgroundColor=UIColor.blue;

        button?.setTitle("60", for: UIControlState.normal)

        button?.addTarget(self, action: #selector(buttonClick(sender:)), for: UIControlEvents.touchUpInside)

        self.view.addSubview(button!)


        stop = self;

//        self.kj { (m) -> Int in
//
//
//            print("执行完成了")
//
//            return 2;
//        }



        var m = ms;


        let names = ["chris","alex","bkljk "];



        func sortFunc(numbers:String,numberw:String)->Bool
        {
            return numbers>numberw;
        }

        var sortm = names.sorted(by: sortFunc);

        print("刷选出来的结果是",sortm);


        print("===m",m);



//         self.kj { (name) -> Int in
//
//
//
//            print("name的值为====>%@\n",name);
//
//
//
//
//
//            return 2;
//
//        };




//        callBack = {(msgk)   in Int
//
//
//
//
//            return 20;
//
//        };










        testBlock = { (kkjj:String) -> Int in


            print("结果是lklanxm===%@",kkjj)

            return 50;

        }

      let result = testBlock!("新的发现哦");


        print("输出结果是",result)




    }

    func buttonClick(sender:UIButton) {

        if timer==nil {


            let weak = self;

            timer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true, block: { (t) in

                self.number -= 1;

                self.button?.setTitle(("\(self.number)"), for: UIControlState.normal);

                if self.number == 0
                {
                   self.timer?.invalidate()

                    self.timer=nil;



//                    if self.StopTimer != nil{

                    self.stop?.stopTimer();

//                    }

//                    if (.m != nil)
//                    {
////                        self.m = {( "hah") in Void
////
////                            return 20;
////                       }
//                    }




                }

            })


            RunLoop.current.add(timer!, forMode: RunLoopMode.commonModes)

            timer?.fire()
        }


    }

    func stopTimer()
    {
        print("停止操作了");
    }


    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

}

0 0