Swift 编程 UI UIContextMenuInteraction 打开上下文菜单时自动布局错误（groupView）答案

【问题标题】：Swift programmatic UI UIContextMenuInteraction Auto layout error (groupView) on opening context menuSwift 编程 UI UIContextMenuInteraction 打开上下文菜单时自动布局错误（groupView）
【发布时间】：2020-10-21 00:15:58
【问题描述】：

我有一个带有程序化 UI（无情节提要）的应用。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！我在所有自定义控件（标签、字段等）上设置了translatesAutoresizingMaskIntoConstraints = false。我想我需要在某处为上下文菜单设置它，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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【问题讨论】：

标签： autolayout constraints swift5 uicontextmenuinteraction

【解决方案1】：

我在苹果开发者论坛上得到一个回答，说布局警告是一个已知问题，将在iOS14中解决！

https://developer.apple.com/forums/thread/652622?login=true&page=1#618265022

【讨论】：