我通过编程有一个自定义按钮设置,该设置更像是用UIButton包装uiview,当我触摸它时会显示一个名称列表。问题是当我尝试点击按钮时,在自定义按钮下的视图控制器中有一个uiview。我的名单在uiview后面。如何使列表在uiview上,这是我的UI和代码设置。
看到有一个hello和world列表,但是这个世界被uiview覆盖了。
这是我的代码设置
class AddScheduleViewController: UIViewController {
let containerTitle = GView(bgColor: .white, radius: 0)
let headerView = HeaderView()
let scrollView: UIScrollView = {
let scrollView = UIScrollView()
scrollView.backgroundColor = .white
scrollView.translatesAutoresizingMaskIntoConstraints = false
return scrollView
}()
var chooseScheduleDropDown = GDropdownSchedule(type: .system)
}
override func viewDidLoad() {
super.viewDidLoad()
chooseScheduleDropDown = GDropdownSchedule.init(frame: CGRect(x: 0, y: 0, width: 0, height: 0))
chooseScheduleDropDown.dropView.options = ["Hello", "World"]
configure()
}
private func configure() {
view.addSubview(containerTitle)
containerTitle.layer.cornerRadius = 10
containerTitle.clipsToBounds = true
containerTitle.anchor(top: view.safeAreaLayoutGuide.topAnchor, trailing: view.safeAreaLayoutGuide.trailingAnchor, bottom: view.safeAreaLayoutGuide.bottomAnchor, leading: view.safeAreaLayoutGuide.leadingAnchor, topPadding: 16, rightPadding: 19, bottomPadding: 16, leftPadding: 19, width: 0, height: 0)
containerTitle.addSubview(headerView)
headerView.anchor(top: containerTitle.topAnchor, trailing: containerTitle.trailingAnchor, bottom: nil, leading: containerTitle.leadingAnchor, topPadding: 0, rightPadding: 0, bottomPadding: 0, leftPadding: 0, width: 0, height: 53)
containerTitle.addSubview(scrollView)
scrollView.anchor(top: headerView.bottomAnchor, trailing: containerTitle.trailingAnchor, bottom: containerTitle.bottomAnchor, leading: containerTitle.leadingAnchor, topPadding: 8, rightPadding: 8, bottomPadding: 8, leftPadding: 8, width: 0, height: 0)
[chooseScheduleDropDown, entryView, chooseDateView, chooseClass, startTimeView, endTimeView, descriptionView, saveBtn].forEach {
v in
v.translatesAutoresizingMaskIntoConstraints = false
scrollView.addSubview(v)
}
NSLayoutConstraint.activate([
chooseScheduleDropDown.centerXAnchor.constraint(equalTo: scrollView.centerXAnchor),
chooseScheduleDropDown.topAnchor.constraint(equalTo: scrollView.topAnchor),
chooseScheduleDropDown.widthAnchor.constraint(equalToConstant: 285),
chooseScheduleDropDown.heightAnchor.constraint(equalToConstant: 60),
entryView.centerXAnchor.constraint(equalTo: scrollView.centerXAnchor),
entryView.topAnchor.constraint(equalTo: chooseScheduleDropDown.bottomAnchor, constant: topPadding),
entryView.widthAnchor.constraint(equalToConstant: 285),
entryView.heightAnchor.constraint(equalToConstant: 60)
])
}
[假设您的“列表”是UIView
的子类(或表视图,无论如何),它也已添加为scrollView
的子视图,您可以使用以下命令将其置于其他子视图的前面:] >
scrollView.bringSubviewToFront(entryView)
作为附注,有几点提示:
尝试从简单元素开始。
UIView
对象(为它们提供不同的背景颜色),因此您需要处理的代码更少。 在此处在StackOverflow上提问时,>>
GView
,HeaderView
和GDropdownSchedule
对象是什么。 .anchor()
扩展名之类的东西。要在所有参数中水平滚动(一行中的行长为308个字符),以了解所设置的约束是相当困难的。