Ios Snapkit和UILabel'；s旋转

我有：

UIView（容器）

尤维尤。（1）的子视图-下图中为深蓝色

尤维尤。（1）的子视图-下图中的紫色

UILabel。edges.equalToSuperview（）

我正在努力实现的目标：

问题是，我希望UILabel旋转3pi/2（270°）。一旦我完成了旋转，它就没有正确放置

这是通过设置edges.equalToSuperview（）和270°旋转的效果：

我尝试过这个（但它导致崩溃）：

事故描述：

*** Terminating app due to uncaught exception 'NSInvalidLayoutConstraintException', reason: 'Constraint improperly relates anchors of incompatible types: <SnapKit.LayoutConstraint:0x6100000ad8c0@MyClass.swift#250 MyProject.MyLabel:0x7fcc2201ca80.top == UIView:0x7fcc2201bd30.left>'

***由于未捕获异常“NSInvalidLayoutConstraintException”而终止应用程序，原因：“约束与不兼容类型的锚不正确关联：”

---

你知道我可以在这里做什么吗？

我已经用默认的自动布局完成了，我也很喜欢。：）

这是函数。

func makeLabel() {
        //Creating stackview
        let stackView = UIStackView()
        view.addSubview(stackView)
        stackView.translatesAutoresizingMaskIntoConstraints = false
        stackView.alignment = .fill
        stackView.distribution = .fillEqually
        stackView.axis = .vertical

        //Creating blueView
        let blueView = UIView()
        blueView.backgroundColor = UIColor.darkGray
        blueView.translatesAutoresizingMaskIntoConstraints = false
        stackView.addArrangedSubview(blueView)
        blueView.widthAnchor.constraint(equalToConstant: 100).isActive = true

        //Creating purpleView
        let purpleView = UIView()
        purpleView.backgroundColor = UIColor.purple
        purpleView.translatesAutoresizingMaskIntoConstraints = false
        stackView.addArrangedSubview(purpleView)

        stackView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 0).isActive = true
        stackView.topAnchor.constraint(equalTo: view.topAnchor, constant: 0).isActive = true
        stackView.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 0).isActive = true

        //Creating rotated label
        let label = UILabel()
        view.addSubview(label)
        label.transform = CGAffineTransform.init(rotationAngle: -CGFloat.pi/2)
        label.textColor = UIColor.white
        label.text = "This is my Rotated Text"
        label.font = UIFont.systemFont(ofSize: 25)
        label.translatesAutoresizingMaskIntoConstraints = false
        label.centerXAnchor.constraint(equalTo: stackView.centerXAnchor, constant: 0).isActive = true
        label.centerYAnchor.constraint(equalTo: stackView.centerYAnchor, constant: 0).isActive = true


    }

这是输出。

func makeLabel() {
        //Creating stackview
        let stackView = UIStackView()
        view.addSubview(stackView)
        stackView.translatesAutoresizingMaskIntoConstraints = false
        stackView.alignment = .fill
        stackView.distribution = .fillEqually
        stackView.axis = .vertical

        //Creating blueView
        let blueView = UIView()
        blueView.backgroundColor = UIColor.darkGray
        blueView.translatesAutoresizingMaskIntoConstraints = false
        stackView.addArrangedSubview(blueView)
        blueView.widthAnchor.constraint(equalToConstant: 100).isActive = true

        //Creating purpleView
        let purpleView = UIView()
        purpleView.backgroundColor = UIColor.purple
        purpleView.translatesAutoresizingMaskIntoConstraints = false
        stackView.addArrangedSubview(purpleView)

        stackView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 0).isActive = true
        stackView.topAnchor.constraint(equalTo: view.topAnchor, constant: 0).isActive = true
        stackView.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 0).isActive = true

        //Creating rotated label
        let label = UILabel()
        view.addSubview(label)
        label.transform = CGAffineTransform.init(rotationAngle: -CGFloat.pi/2)
        label.textColor = UIColor.white
        label.text = "This is my Rotated Text"
        label.font = UIFont.systemFont(ofSize: 25)
        label.translatesAutoresizingMaskIntoConstraints = false
        label.centerXAnchor.constraint(equalTo: stackView.centerXAnchor, constant: 0).isActive = true
        label.centerYAnchor.constraint(equalTo: stackView.centerYAnchor, constant: 0).isActive = true


    }

肖像：

景观

---

我已经使用默认的自动布局完成了，我也非常喜欢它。：）

这是函数。

func makeLabel() {
        //Creating stackview
        let stackView = UIStackView()
        view.addSubview(stackView)
        stackView.translatesAutoresizingMaskIntoConstraints = false
        stackView.alignment = .fill
        stackView.distribution = .fillEqually
        stackView.axis = .vertical

        //Creating blueView
        let blueView = UIView()
        blueView.backgroundColor = UIColor.darkGray
        blueView.translatesAutoresizingMaskIntoConstraints = false
        stackView.addArrangedSubview(blueView)
        blueView.widthAnchor.constraint(equalToConstant: 100).isActive = true

        //Creating purpleView
        let purpleView = UIView()
        purpleView.backgroundColor = UIColor.purple
        purpleView.translatesAutoresizingMaskIntoConstraints = false
        stackView.addArrangedSubview(purpleView)

        stackView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 0).isActive = true
        stackView.topAnchor.constraint(equalTo: view.topAnchor, constant: 0).isActive = true
        stackView.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 0).isActive = true

        //Creating rotated label
        let label = UILabel()
        view.addSubview(label)
        label.transform = CGAffineTransform.init(rotationAngle: -CGFloat.pi/2)
        label.textColor = UIColor.white
        label.text = "This is my Rotated Text"
        label.font = UIFont.systemFont(ofSize: 25)
        label.translatesAutoresizingMaskIntoConstraints = false
        label.centerXAnchor.constraint(equalTo: stackView.centerXAnchor, constant: 0).isActive = true
        label.centerYAnchor.constraint(equalTo: stackView.centerYAnchor, constant: 0).isActive = true


    }

这是输出。

func makeLabel() {
        //Creating stackview
        let stackView = UIStackView()
        view.addSubview(stackView)
        stackView.translatesAutoresizingMaskIntoConstraints = false
        stackView.alignment = .fill
        stackView.distribution = .fillEqually
        stackView.axis = .vertical

        //Creating blueView
        let blueView = UIView()
        blueView.backgroundColor = UIColor.darkGray
        blueView.translatesAutoresizingMaskIntoConstraints = false
        stackView.addArrangedSubview(blueView)
        blueView.widthAnchor.constraint(equalToConstant: 100).isActive = true

        //Creating purpleView
        let purpleView = UIView()
        purpleView.backgroundColor = UIColor.purple
        purpleView.translatesAutoresizingMaskIntoConstraints = false
        stackView.addArrangedSubview(purpleView)

        stackView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 0).isActive = true
        stackView.topAnchor.constraint(equalTo: view.topAnchor, constant: 0).isActive = true
        stackView.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 0).isActive = true

        //Creating rotated label
        let label = UILabel()
        view.addSubview(label)
        label.transform = CGAffineTransform.init(rotationAngle: -CGFloat.pi/2)
        label.textColor = UIColor.white
        label.text = "This is my Rotated Text"
        label.font = UIFont.systemFont(ofSize: 25)
        label.translatesAutoresizingMaskIntoConstraints = false
        label.centerXAnchor.constraint(equalTo: stackView.centerXAnchor, constant: 0).isActive = true
        label.centerYAnchor.constraint(equalTo: stackView.centerYAnchor, constant: 0).isActive = true


    }

肖像：

景观

---

对于任何对麋鹿克隆人使用Snapkit的答案感兴趣的人：

myLabel.snp.makeConstraints { make in
    make.centerX.equalTo(containerView.snp.centerX)
    make.centerY.equalTo(containerView.snp.centerY)
}

---

对于任何对使用Snapkit的elk_cloner答案感兴趣的人：

myLabel.snp.makeConstraints { make in
    make.centerX.equalTo(containerView.snp.centerX)
    make.centerY.equalTo(containerView.snp.centerY)
}

---

非常感谢你！非常感谢你！