ios - 以编程方式循环 UIButton

Question

我正在创建按钮，我想循环 14 次，2 行，每行有 7 个按钮，每个按钮之间有一点空间，我该怎么做？

这是我的代码:

var tileButton = UIButton()
func createButton() {

            for i in 0...13 {

                tileButton.frame = CGRect(x: 20, y: 530, width: 50, height: 50)
                tileButton.layer.masksToBounds = true
                tileButton.layer.cornerRadius = 15
                tileButton.setImage( UIImage.init(named: "cell"), for: .normal)
                tileButton.addTarget(self, action: "tileButton", for: UIControlEvents.touchUpInside)
                tileButton.setTitle("\(String(i))", for: .normal)
                view.addSubview(tileButton)

            }
    }

当我运行此代码时，仅显示 1 个按钮!

Answer 1

let BUTTON_PADDING: CGFloat = 10
func createButton() {

        for i in 0...13 {
            let y: CGFloat = i < 7 ? 530 : 600

            let tileButton = UIButton(frame: .zero)

            tileButton.frame = CGRect(x: (50*i) + BUTTON_PADDING, y: y, width: 50, height: 50)
            tileButton.layer.masksToBounds = true
            tileButton.layer.cornerRadius = 15
            tileButton.setImage( UIImage.init(named: "cell"), for: .normal)
            tileButton.addTarget(self, action: "tileButton", for: UIControlEvents.touchUpInside)
            tileButton.setTitle("\(String(i))", for: .normal)
            view.addSubview(tileButton)

        }
}