Swift - 以编程方式创建的按钮和标签相互链接

Posted 2023-02-26

【中文标题】Swift - 以编程方式创建的按钮和标签相互链接

【英文标题】：Swift - Linking programmatically created buttons and labels to each other

【发布时间】：2018-11-27 22:38:53

【问题描述】：

我正在以编程方式创建所有内容，但在链接多个按钮以对选定的自定义操作做出反应时遇到问题。

蓝色按钮是以编程方式创建的，我使用标签来跟踪按下了哪个按钮。选择蓝色按钮时，弹出动作菜单，可以通过按下添加图标将动作链接到按钮。

您可以通过单击“选择”来选择所需的操作，然后从“o”按钮中按下并拖动以创建连接器。

我将选定的操作以及与之连接的按钮存储在字典中

问题是当以编程方式创建它们时，如何将同一行中的“o”按钮、“选择”按钮和“名称”标签相互链接？我没有使用 tableview 来创建操作。那会更容易使用吗？

这将创建操作行

// MARK: - ACTION Input
func createAction()

    let actionTabContainer = UIView()
    actionTabContainer.frame = CGRect(x: 0, y: 0, width: 0, height: 0)
    actionTabContainer.translatesAutoresizingMaskIntoConstraints = false
    actionTabContainer.backgroundColor = UIColor.darkGray
    actionTabContainer.layer.borderWidth = 2
    actionTabContainer.layer.borderColor = UIColor(red: 29/255.0, green: 30/255.0, blue: 33/255.0, alpha: 1.0).cgColor

    actionScrollViewContainer.addSubview(actionTabContainer)

    actionTabContainer.widthAnchor.constraint(equalToConstant: actionScrollViewContainer.frame.width).isActive = true
    actionTabContainer.heightAnchor.constraint(equalToConstant: 50).isActive = true
    actionTabContainer.leftAnchor.constraint(equalTo: actionScrollViewContainer.leftAnchor, constant: 10).isActive = true
    actionTabContainer.topAnchor.constraint(equalTo: actionScrollViewContainer.topAnchor, constant: 2 + constantAdd).isActive = true
    constantAdd = constantAdd + 50

    let connectorBtn = UIButton()
    connectorBtn.createRectangleButton(buttonPositionX: 0, buttonPositionY: 0, buttonWidth: 0, buttonHeight: 0, buttonTitle: "O", buttonTag: 400)
    connectorBtn.translatesAutoresizingMaskIntoConstraints = false
    connectorBtn.backgroundColor = UIColor.gray

    actionTabContainer.addSubview(connectorBtn)

    connectorBtn.widthAnchor.constraint(equalToConstant: 30).isActive = true
    connectorBtn.heightAnchor.constraint(equalToConstant: 30).isActive = true
    connectorBtn.leftAnchor.constraint(equalTo: actionTabContainer.leftAnchor, constant: 10).isActive = true
    connectorBtn.centerYAnchor.constraint(equalTo: actionTabContainer.centerYAnchor, constant: 0).isActive = true
    connectorBtn.addTarget(self, action: #selector(addConnector(sender:)), for: .touchUpInside)

    addPanReconiser(view: connectorBtn)

    let chooseActionButton = UIButton()
    chooseActionButton.createRectangleButton(buttonPositionX: 0, buttonPositionY: 0, buttonWidth: 0, buttonHeight: 0, buttonTitle: "select", buttonTag: 700)
    chooseActionButton.translatesAutoresizingMaskIntoConstraints = false
    chooseActionButton.backgroundColor = UIColor.gray
    chooseActionButton.layer.cornerRadius = 0

    actionTabContainer.addSubview(chooseActionButton)

    chooseActionButton.widthAnchor.constraint(equalToConstant: 110).isActive = true
    chooseActionButton.heightAnchor.constraint(equalToConstant: 30).isActive = true
    chooseActionButton.leftAnchor.constraint(equalTo: connectorBtn.rightAnchor, constant: 10).isActive = true
    chooseActionButton.centerYAnchor.constraint(equalTo: connectorBtn.centerYAnchor, constant: 0).isActive = true
    chooseActionButton.addTarget(self, action: #selector(addConnector(sender:)), for: .touchUpInside)


    let actionMarkerConnectedLabel =  UILabel()
    actionMarkerConnectedLabel.createLabel(labelPositionX: 0, labelPositionY: 0, labelWidth: 0, labelHeight: 0, labelTitle: "name")
    actionMarkerConnectedLabel.backgroundColor = UIColor.gray
    actionMarkerConnectedLabel.translatesAutoresizingMaskIntoConstraints = false
    actionMarkerConnectedLabel.textAlignment = .center

    connectorBtn.addSubview(actionMarkerConnectedLabel)

    actionMarkerConnectedLabel.widthAnchor.constraint(equalToConstant: 100).isActive = true
    actionMarkerConnectedLabel.heightAnchor.constraint(equalToConstant: 32).isActive = true
    actionMarkerConnectedLabel.leftAnchor.constraint(equalTo: chooseActionButton.rightAnchor, constant: 10).isActive = true
    actionMarkerConnectedLabel.centerYAnchor.constraint(equalTo: connectorBtn.centerYAnchor, constant: 0).isActive = true

我有自己的扩展程序来创建可能看起来令人困惑的矩形和其他形状。

感谢您的任何建议

【参考方案1】：

我认为如果使用表格视图并通过 indexPath 控制它们会更好。如果没有，您可以创建一个变量来保持“计数”，然后在创建新时：

count += 1
button1.tag = count
button2.tag = count

【讨论】：

谢谢Lê Minh，我会试一试

嘿 Lê Minh，我使用了 tableview，但标签与我以编程方式创建的其他按钮重叠。你还能想到其他方法吗？谢谢

您是否通过 indexPath 设置了标签，例如：= indexpath.row 或者如果您使用 section 那么将是 indexPath.section

我将标签设置为默认值 700，它会停止重叠