Swift-Inherit UIView implement custom visualization components (with Scoreboard sample)

In iOS development, if you create a custom component, you can usually implement it by inheriting UIView. The following is an example of a scoreboard component that demonstrates the creation and use of components, as well as learning about enumerations, protocols, and other related knowledge.as follows:Component code: Scoreview.swift

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import UIKitenum ScoreType{    case Common//普通分数面板    case Best//最高分面板}protocol ScoreViewProtocol{        func changeScore(value s:Int)}class ScoreView:UIView, ScoreViewProtocol{    var label:UILabel!        let defaultFrame = CGRectMake(0,0,100,30)    var stype:String!  //显示”最高分“还是”分数“    var score:Int = 0{        didSet{            //分数变化，标签内容也要变化            label.text = "\(stype):\(score)"        }    }        //传入分数面板的类型，用于控制标签的显示    init(stype:ScoreType)    {        label = UILabel(frame:defaultFrame)        label.textAlignment = NSTextAlignment.Center                super.init(frame:defaultFrame)                self.stype = (stype == ScoreType.Common ? "分数":"最高分")                backgroundColor = UIColor.orangeColor()        label.font = UIFont(name:"微软雅黑", size:16)        label.textColor = UIColor.whiteColor()        self.addSubview(label)    }        required init(coder aDecoder: NSCoder) {        super.init(coder: aDecoder)    }        //实现协议中的方法    func changeScore(value s:Int)    {        score = s    }}

Component use:

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import UIKitclass ViewController: UIViewController {         var score:ScoreView!    var bestscore:ScoreView!        override func viewDidLoad() {        super.viewDidLoad()        // Do any additional setup after loading the view, typically from a nib.        setupScoreLabels();    }        func setupScoreLabels()    {        score = ScoreView(stype: ScoreType.Common)        score.frame.origin = CGPointMake(50, 80)        score.changeScore(value: 0)        self.view.addSubview(score)                        bestscore = ScoreView(stype: ScoreType.Best)        bestscore.frame.origin.x = 170        bestscore.frame.origin.y = 80        bestscore.changeScore(value: 99)        self.view.addSubview(bestscore)            }        override func didReceiveMemoryWarning() {        super.didReceiveMemoryWarning()        // Dispose of any resources that can be recreated.    }}

Swift-Inherit UIView implement custom visualization components (with Scoreboard sample)