Ios 以编程方式编辑视图

我目前正在尝试制作一个简单的应用程序，它将根据用户的输入显示少量的内容。目前，我的屏幕上有一个堆栈视图，其中有一个UIView。我试图使它，一旦按下一个按钮，UIView将消失，然后当另一个按钮被按下时，一个新的将出现。按钮可以一直按下，更多视图将被放入堆栈视图中

这是我目前拥有的，它不起作用，在搜索了一段时间的答案后，我不知道如何让它起作用：

import UIKit

class ViewController: UIViewController {
    
    @IBAction func deleteButtonPressed(_ button: PushButton) {
        
        @IBOutlet weak var containerStackView: UIStackView!
        containerStackView = UIStackView(arrangedSubviews: [removeIcons()])
    }

    func removeIcons() -> UIView {
        let newView = UIView(frame: CGRect(x: 0, y:0, width: 100, height: 100))
        return newView
    }
}

有没有办法引用堆栈视图，然后对其进行更改

--编辑

我现在有了这个代码：

class ViewController: UIViewController {
    @IBOutlet var containerStackView: UIStackView!

    @IBAction func deleteButtonPressed(_ sender: Any) {
        let newView = UIView(frame: CGRect(x: 0, y:0, width: 100, height: 100))
        newView.backgroundColor = UIColor.black
    
        containerStackView = UIStackView(arrangedSubviews: [newView])
    }
}

这似乎完美地代表了堆栈视图，但是，当我按下按钮时，堆栈视图似乎没有发生任何变化。理论上，当前存在的UIView应该被创建为“newView”的黑色小正方形所取代。虽然这似乎没有发生-有什么明显的我错过了

---

对于这些问题，我深表歉意，我是swift和xcode的新手。

在类范围外声明函数的出口

class ViewController: UIViewController {
    @IBOutlet weak var containerStackView: UIStackView! // here

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }

    @IBAction func deleteButtonPressed(_ button: PushButton) {
        containerStackView.subviews.forEach { $0.removeFromsuperView() }
    }

    @IBAction func daddButtonPressed(_ button: UIButton) {
        containerStackView = UIStackView(arrangedSubviews: [removeIcons()])
    }

    func removeIcons() -> UIView {
        let newView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))

        return newView
    }
}

---

在类作用域外部声明函数外部的出口

class ViewController: UIViewController {
    @IBOutlet weak var containerStackView: UIStackView! // here

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }

    @IBAction func deleteButtonPressed(_ button: PushButton) {
        containerStackView.subviews.forEach { $0.removeFromsuperView() }
    }

    @IBAction func daddButtonPressed(_ button: UIButton) {
        containerStackView = UIStackView(arrangedSubviews: [removeIcons()])
    }

    func removeIcons() -> UIView {
        let newView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))

        return newView
    }
}

试试这个：

class ViewController: UIViewController {
    //...
    @IBOutlet weak var containerStackView: UIStackView!
    //...
    @IBAction func deleteButtonPressed(_ button: PushButton) {
        let newView = UIView(frame: CGRect(x: 0, y:0, width: 100, height: 100))
        containerStackView.addArrangedSubview(newView)
    }
}

试试这个：

class ViewController: UIViewController {
    //...
    @IBOutlet weak var containerStackView: UIStackView!
    //...
    @IBAction func deleteButtonPressed(_ button: PushButton) {
        let newView = UIView(frame: CGRect(x: 0, y:0, width: 100, height: 100))
        containerStackView.addArrangedSubview(newView)
    }
}

---

首先，您的门店应位于顶层：

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var containerStackView: UIStackView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }

    @IBAction func deleteButtonPressed(_ button: PushButton) {
        containerStackView = UIStackView(arrangedSubviews: [removeIcons()])
    }

    func removeIcons() -> UIView {
        let newView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))

        return newView
    }
}

---

首先，您的门店应位于顶层：

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var containerStackView: UIStackView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }

    @IBAction func deleteButtonPressed(_ button: PushButton) {
        containerStackView = UIStackView(arrangedSubviews: [removeIcons()])
    }

    func removeIcons() -> UIView {
        let newView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))

        return newView
    }
}