ios - 如何在SWIFT中将 View 添加到容器 View 中

现在，我在该视图中的ScrollView中有一个包含unoView的容器，但这在顶部保持静态。我想在ContainerView中使用围栏，希望有人可以帮助我。谢谢！

import UIKit

extension UIColor {
    static func fromUInt(rgbValue: UInt32) -> UIColor{
        let red = CGFloat((rgbValue & 0xFF0000) >> 16) / 256.0
        let green = CGFloat((rgbValue & 0xFF00) >> 8) / 256.0
        let blue = CGFloat(rgbValue & 0xFF) / 256.0
        return UIColor(red: red, green: green, blue: blue, alpha: 1.0)
    }
}

class ViewController: UIViewController, UIScrollViewDelegate {

    var scrollView = UIScrollView()
    var containerView = UIView()
    var unoView = UIView()

    override func viewDidLoad() {
        super.viewDidLoad()

        scrollView.delegate = self
        containerView.backgroundColor = UIColor.fromUInt(0x0099FF)
        unoView.backgroundColor = UIColor.purpleColor()

        containerView.setTranslatesAutoresizingMaskIntoConstraints(false)
        scrollView.setTranslatesAutoresizingMaskIntoConstraints(false)
        unoView.setTranslatesAutoresizingMaskIntoConstraints(false)

        view.addSubview(scrollView)
        scrollView.addSubview(containerView)
        view.addSubview(unoView)

        let viewsDictionary = ["scrollView": scrollView, "unoView": unoView]

        let view_constraint_H = NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[scrollView]-0-|",
            options: NSLayoutFormatOptions(0),
            metrics: nil,
            views: viewsDictionary)

        let view_constraint_V = NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[scrollView]-0-|",
            options: NSLayoutFormatOptions(0),
            metrics: nil,
            views: viewsDictionary)

        view.addConstraints(view_constraint_H)
        view.addConstraints(view_constraint_V)

        let view_constraintUno_H = NSLayoutConstraint.constraintsWithVisualFormat("H:|-[unoView]-|",
            options: NSLayoutFormatOptions(0),
            metrics: nil,
            views: viewsDictionary)

        let view_constraintUno_V = NSLayoutConstraint.constraintsWithVisualFormat("V:|-25-[unoView(200)]-|",
            options: NSLayoutFormatOptions(0),
            metrics: nil,
            views: viewsDictionary)

        view.addConstraints(view_constraintUno_H)
        view.addConstraints(view_constraintUno_V)





        containerView.frame = CGRectMake(0, 0,  view.frame.width, 2000)
        scrollView.contentSize = containerView.frame.size
    }
}

最佳答案

您说容器包含unoView，但是您被写为view.addSubview(unoView)，因此，它不是containerView.addSubview(unoView)吗？

我不确定“在ContainerView中围栏”是什么意思。您能否在这里详细说明要实现哪种布局？