Ios 如何以编程方式将UIStackview放入Swift中的UIView中
我想在UIView中放置5个图像的Stackview。基本上我想要的是做一个带阴影的圆形按钮,在按钮内水平放置5个不同的小图像 我已经有了一个viewcontroller,每个都有一个声明和设置功能。我能使你的视野开阔 以下是我试图实现的目标: 我如何解决这个问题 我已经有了一些代码:Ios 如何以编程方式将UIStackview放入Swift中的UIView中,ios,swift,Ios,Swift,我想在UIView中放置5个图像的Stackview。基本上我想要的是做一个带阴影的圆形按钮,在按钮内水平放置5个不同的小图像 我已经有了一个viewcontroller,每个都有一个声明和设置功能。我能使你的视野开阔 以下是我试图实现的目标: 我如何解决这个问题 我已经有了一些代码: private let btnUIView: UIView = { let btnUIView = UIView(frame: CGRect(x: 50, y: 50, width: 343,
private let btnUIView: UIView = {
let btnUIView = UIView(frame: CGRect(x: 50, y: 50, width: 343, height: 77))
btnUIView.layer.shadowColor = UIColor.black.cgColor
btnUIView.layer.shadowOpacity = 0.5
btnUIView.layer.shadowOffset = .zero
btnUIView.layer.shadowRadius = 3
btnUIView.backgroundColor = .white
btnUIView.translatesAutoresizingMaskIntoConstraints = false
btnUIView.layer.borderWidth = 0
btnUIView.layer.borderColor = UIColor.gray.cgColor
return btnUIView
}()
private let btnStackView: UIStackView = {
let image = UIStackView()
image.translatesAutoresizingMaskIntoConstraints = false
image.distribution = .fillEqually
// image.spacing = 60
return image
}()
func setupBtnView(){
view.addSubview(btnUIView)
btnUIView.addSubview(btnStackView)
NSLayoutConstraint.activate([
btnUIView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
btnUIView.topAnchor.constraint(equalTo: btnText.bottomAnchor, constant: 15),
btnUIView.heightAnchor.constraint(equalToConstant: btnUIView.frame.height),
btnUIView.widthAnchor.constraint(equalToConstant: btnUIView.frame.width),
])
let imgone = UIImageView(image: #imageLiteral(resourceName: "imgtest1"))
let imgtwo = UIImageView(image: #imageLiteral(resourceName: "imgtest1"))
let imgthree = UIImageView(image: #imageLiteral(resourceName: "imgtest1"))
let imgfour = UIImageView(image: #imageLiteral(resourceName: "imgtst1"))
let imgfive = UIImageView(image: #imageLiteral(resourceName: "imgtest1"))
btnStackView.addArrangedSubview(imgone)
btnStackView.addArrangedSubview(imgtwo)
btnStackView.addArrangedSubview(imgthree)
btnStackView.addArrangedSubview(imgfour)
btnStackView.addArrangedSubview(imgfive)
imgone.contentMode = .scaleAspectFill
imgtwo.contentMode = .scaleAspectFill
imgthree.contentMode = .scaleAspectFill
imgfour.contentMode = .scaleAspectFill
imgfive.contentMode = .scaleAspectFill
imgone.clipsToBounds = true
imgtwo.clipsToBounds = true
imgthree.clipsToBounds = true
imgfour.clipsToBounds = true
imgfive.clipsToBounds = true
}
func setupImages(){
view.addSubview(btnStackView)
NSLayoutConstraint.activate([
btnStackView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
btnStackView.topAnchor.constraint(equalTo: btnUIView.bottomAnchor, constant: 20),
btnStackView.widthAnchor.constraint(equalToConstant: btnStackView.frame.width)
])
我在应用程序中看到的是一个空的UIView:
这似乎很简单。我花了大约两分钟的时间编写代码,让我们了解到: 这只是对你所追求的东西的一个粗略的描述,但它表明基本的想法是足够简单的。我所做的只是:
viewDidLoad
中只有11行代码
至于您的代码(您现在已经展示了),主要的问题可能是约束没有意义。以下是我对代码的更正(出于测试目的,替换我自己的圆圈图像);这是我的测试应用程序视图控制器的全部代码:
private let btnUIView: UIView = {
let btnUIView = UIView()
btnUIView.layer.shadowColor = UIColor.black.cgColor
btnUIView.layer.shadowOpacity = 0.5
btnUIView.layer.shadowOffset = .zero
btnUIView.layer.shadowRadius = 3
btnUIView.backgroundColor = .white
btnUIView.translatesAutoresizingMaskIntoConstraints = false
btnUIView.layer.borderWidth = 0
btnUIView.layer.borderColor = UIColor.gray.cgColor
return btnUIView
}()
private let btnStackView: UIStackView = {
let image = UIStackView()
image.translatesAutoresizingMaskIntoConstraints = false
image.distribution = .fillEqually
image.alignment = .center
return image
}()
override func viewDidLoad() {
super.viewDidLoad()
let r = UIGraphicsImageRenderer(size: CGSize(width: 30, height: 30))
let im = r.image { _ in UIBezierPath.init(ovalIn: CGRect(x: 1, y: 1, width: 28, height: 28)).stroke() }
let imgone = UIImageView(image: im)
let imgtwo = UIImageView(image: im)
let imgthree = UIImageView(image: im)
let imgfour = UIImageView(image: im)
let imgfive = UIImageView(image: im)
btnStackView.addArrangedSubview(imgone)
btnStackView.addArrangedSubview(imgtwo)
btnStackView.addArrangedSubview(imgthree)
btnStackView.addArrangedSubview(imgfour)
btnStackView.addArrangedSubview(imgfive)
setupBtnView()
}
func setupBtnView(){
view.addSubview(btnUIView)
btnUIView.addSubview(btnStackView)
NSLayoutConstraint.activate([
btnUIView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
btnUIView.topAnchor.constraint(equalTo: view.topAnchor, constant: 40),
btnUIView.heightAnchor.constraint(equalToConstant: 100),
btnUIView.widthAnchor.constraint(equalToConstant: 300),
])
NSLayoutConstraint.activate([
btnStackView.leadingAnchor.constraint(equalTo: btnUIView.leadingAnchor),
btnStackView.trailingAnchor.constraint(equalTo: btnUIView.trailingAnchor),
btnStackView.topAnchor.constraint(equalTo: btnUIView.topAnchor),
btnStackView.bottomAnchor.constraint(equalTo: btnUIView.bottomAnchor),
])
}
结果:
我在编辑中添加了代码。你能看一下吗?我在寻找一个解决方案,但主要是人们在StackView中以另一种方式询问UIView。好吧,你有一些垃圾约束,比如
btnUIView.heightAnchor.constraint(equalToConstant:btnUIView.frame.height)
(不要在约束中谈论某个东西的框架,这些概念是相互对立的),但主要问题是空堆栈视图是不可见的,而堆栈视图是空的:其中的五个图像在哪里?此外,在代码中,您似乎已经忘记了哪个视图是哪个视图。:)您似乎多次添加与子视图相同的堆栈视图,这毫无意义。我已经指定了下面的图像。我可以在里面放一个UILabel,没有问题,但是它不会显示图像。“我已经指定了下面的图像。”在你给我看的代码中没有,你没有。现在它应该显示在编辑中,我很抱歉。