iOS 14 从 UIView 呈现 UIMenu

Question

iOS 14 的UIMenu 似乎可以从任何UIBarButtonItem 或UIButton / UIControl 呈现，但我将如何从通用UIView 呈现它？

Answer 1

添加交互：

let interaction = UIContextMenuInteraction(delegate: self)
menuView.addInteraction(interaction)

将 UIContextMenuInteractionDelegate 添加到您的控制器：

extension YourViewController: UIContextMenuInteractionDelegate {
               
      func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
        return UIContextMenuConfiguration(identifier: nil, previewProvider: nil) { suggestedActions in
            
            // Create an action for sharing
            let share = UIAction(title: "Share", image: UIImage(systemName: "square.and.arrow.up")) { action in
                // Show system share sheet
            }
    
            // Create an action for renaming
            let rename = UIAction(title: "Rename", image: UIImage(systemName: "square.and.pencil")) { action in
                // Perform renaming
            }
    
            // Here we specify the "destructive" attribute to show that it’s destructive in nature
            let delete = UIAction(title: "Delete", image: UIImage(systemName: "trash"), attributes: .destructive) { action in
                // Perform delete
            }
    
            // Create and return a UIMenu with all of the actions as children
            return UIMenu(title: "", children: [share, rename, delete])
        }
    }
}

现在，长按视图并查看您的菜单 :)

更多：https://kylebashour.com/posts/context-menu-guide