PROSAGA码农传奇-IOS-Swift游乐场UIButton无法正常工作

Swift游乐场UIButton无法正常工作

作者: 昵称不能为空
发布时间: 2024-12-19 08:57:16 (1月前)
转自：

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  <P>
    我看不到你的其余代码。我刚刚创建了一个，以便您可以与自己的代码进行比较。
  </p>
   <pre>
    <code>
      import UIKit
import PlaygroundSupport

class VC: UIViewController {

let startButton = UIButton(type: .system)

override func viewDidLoad() {
        super.viewDidLoad()

setupStartButton()
    }

func setupStartButton() {
        startButton.frame = CGRect(x: 15, y: 550, width: 125, height: 50)
        startButton.backgroundColor = UIColor(ciColor: CIColor(red: 255/255, green: 0/255, blue: 77/255, alpha: 1.0))
        startButton.layer.cornerRadius = 20
        startButton.setTitle("Start", for: .normal)
        startButton.setTitleColor(.white, for: .normal)
        startButton.addTarget(self, action: #selector(startButtonTapped), for: .touchUpInside)
        view.addSubview(startButton)
    }

@objc func startButtonTapped() {
        print("Hello")
    }
}

let vc = VC()
PlaygroundPage.current.liveView = vc

</code>
  </pre>
  <P>
    <a href="https://i.stack.imgur.com/Xk2f7.jpg" rel="nofollow noreferrer">
      <img src =“https://i.stack.imgur.com/Xk2f7.jpg”alt =“在此处输入图片说明”/>
    </A>
  </p>
</DIV>