UIとロジックをクラスで分離する - iOS

UIButtonのロジックの実装

ViewController.swift

/*

UIButtonのロジックの実装

*/

var sHeight:CGFloat?
var sWidth:CGFloat?

class ViewController: UIViewController {


    @objc func doButtonActioin(sender: Any) {
        print("ボタンが押された時の処理")
    }


    override func viewDidLoad() {
        super.viewDidLoad()

        sHeight = self.view.frame.width/2
        sWidth = self.view.frame.height/2

        //ボタンを画面に描画
        self.view.addSubview(myButton().myButtonFunc())

UIButtonのUIの実装

ButtonUI.swift

/*

UIButtonのUIの実装

*/

class myButton: UIButton {

    func myButtonFunc() -> UIButton {

        let myButton = UIButton()

        myButton.frame = myButtonView().myButtonViewFunc()
        myButton.backgroundColor = UIColor.cyan
        myButton.setTitle("tap me", for: .normal)
        myButton.addTarget(self, action: #selector(ViewController().doButtonActioin(sender: )), for: .touchUpInside)
        // buttonにイベントを追加
        return myButton
    }
}

UIButtonのレイアウトの実装

ButtonLayout.swift

/*

UIButtonのレイアウトの実装 

*/

class myButtonView: UIView {

    func myButtonViewFunc() -> CGRect{

        let rectx =  sWidth!/2
        let recty = sHeight!/2
        let rectWidth = sWidth!/2
        let rectHeight = sHeight!/2
        let buttonRect = CGRect(x:rectx,y:recty,width:rectWidth,height:rectHeight)

        return buttonRect
    }
}