others-how to add context menu with custom actions to tableview controller?

1. Purpose

In this post, I would demo how to add context menu with custom actions to tableview controller.

2. Environment

• Mac OS 10.15
• Swift 5
• Xcode 12

3. The solution

Here is the code:

override func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
        if let item = messages[indexPath.row] as? Message {
            return UIContextMenuConfiguration(identifier: nil, previewProvider: nil) { suggestedActions in

                // Create an action for sharing
                let star = UIAction(title: "star", image: UIImage(systemName: "star")) { action in
                    print("Staring \(item)")
                    self.performStar(msg: item)
                }

                return UIMenu(title: "", children: [star])
            }
        }
        return nil
    }

The key point is as follows:

                // Create an action for sharing
                let star = UIAction(title: "star", image: UIImage(systemName: "star")) { action in
                    print("Staring \(item)")
                    self.performStar(msg: item)
                }

                return UIMenu(title: "", children: [star])

Now it works!

4. Summary

In this post, I demonstrated how to add context menu with custom actions to tableview controller.