我有一个带有程序化 UI 的应用程序（没有故事板）。我将上下文菜单添加到我的视图控制器的按钮。打开此菜单时（点击并按住按钮），我在控制台中收到 LayoutConstraints 警告/错误（否则菜单可以正常工作：
(
"<NSAutoresizingMaskLayoutConstraint:0x600001c9ed50 h=--& v=--& UIInterfaceActionGroupView:0x7f9d4478ceb0.height == 0 (active)>",
"<NSLayoutConstraint:0x600001cd7c50 groupView.actionsSequence....height >= 66 (active, names: groupView.actionsSequence...:0x7f9d4610ee00 )>",
"<NSLayoutConstraint:0x600001cb3de0 UIInterfaceActionGroupView:0x7f9d4478ceb0.top == _UIContentConstraintsLayoutGuide:0x7f9d4478bba0''.top (active)>",
"<NSLayoutConstraint:0x600001cb3e80 V:[_UIContentConstraintsLayoutGuide:0x7f9d4478bba0'']-(0)-| (active, names: '|':UIInterfaceActionGroupView:0x7f9d4478ceb0 )>",
"<NSLayoutConstraint:0x600001cad090 groupView.actionsSequence....top == _UIContentConstraintsLayoutGuide:0x7f9d4478bba0''.top (active, names: groupView.actionsSequence...:0x7f9d4610ee00 )>",
"<NSLayoutConstraint:0x600001cad130 groupView.actionsSequence....bottom == _UIContentConstraintsLayoutGuide:0x7f9d4478bba0''.bottom (active, names: groupView.actionsSequence...:0x7f9d4610ee00 )>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x600001cd7c50 groupView.actionsSequence....height >= 66 (active, names: groupView.actionsSequence...:0x7f9d4610ee00 )>
这个groupView不是我的视图！我已经设置translatesAutoresizingMaskIntoConstraints = false了我所有的自定义控件（标签、字段等）。我想我需要将它设置为某个地方的上下文菜单，但我不知道如何或在哪里。
相关代码：
在我的视图控制器中：
let interaction = UIContextMenuInteraction(delegate: self)
annotationTypeButton.addInteraction(interaction)
代理扩展：
//MARK: - UIContextMenuInteractionDelegate
extension AnnotationDetailsViewController: UIContextMenuInteractionDelegate {
func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
return UIContextMenuConfiguration(identifier: "annotationTypeMenu" as NSCopying, previewProvider: nil) { _ in
let children: [UIMenuElement] = self.makeAnnotationTypeActions()
return UIMenu(title: "", children: children)
}
}
func makeAnnotationTypeActions() -> [UIAction] {
var actions = [UIAction]()
for type in AnnotationType.allCases {
actions.append( UIAction(title: type.rawValue, image: type.image, identifier: nil, attributes: []) { _ in
let annotationType = AnnotationType(rawValue: type.rawValue) ?? AnnotationType.tips
self.annotation.type = annotationType
self.configureAnnotationTypeButton(with: annotationType)
})
}
return actions
}
}
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