ios - Swift 2 - for 循环创建多个 UIButton

Question

我有一个 for 循环，它根据用户的注册方式创建多个按钮。

按钮创建得很好，我已经向需要打印哪个按钮被按下并传递值的按钮添加了一个目标。

到目前为止我有:

func loadUserVideos() {

        let userVideoNames = ["andrew", "john", "verya", "patry", "gabriy"]

        let countUserNames = userVideoNames.count - 1

        for index in 0...countUserNames {

            //print("\(index) times 5 is \(index * 5)")

            //UIBUTTON PLAY VIDEO USER
            let customButtonPlayVideoUser = UIButton(frame: CGRectMake(145, 32, 64, 64))
            let imageCustomUserBtn = UIImage(named: "video-play.png") as UIImage?
            customButtonPlayVideoUser.setImage(imageCustomUserBtn, forState: .Normal)
            customButtonPlayVideoUser.addTarget(self, action: "CustomUserVideobtnTouched:", forControlEvents:.TouchUpInside)
            customViewUser.addSubview(customButtonPlayVideoUser)


        }

    }

    func CustomUserVideobtnTouched(sender: UIButton, index: Int){

        print(index)
    }

如何将值传递给操作函数，以便应用可以看到按下了哪个按钮？

Answer 1

您可以使用标签值:

       for index in 0...countUserNames {

            //print("\(index) times 5 is \(index * 5)")

            //UIBUTTON PLAY VIDEO USER
            let customButtonPlayVideoUser = UIButton(frame: CGRectMake(145, 32, 64, 64))
            let imageCustomUserBtn = UIImage(named: "video-play.png") as UIImage?
            customButtonPlayVideoUser.setImage(imageCustomUserBtn, forState: .Normal)
            customButtonPlayVideoUser.addTarget(self, action: "CustomUserVideobtnTouched:", forControlEvents:.TouchUpInside)
            customViewUser.addSubview(customButtonPlayVideoUser) 

            /// set tag
            customButtonPlayVideoUser.tag = index
        }

然后

    func CustomUserVideobtnTouched(sender: UIButton){

        print(sender.tag)
    }