Copyable UILabel

SRCopyableLabel.swift

//
//  SRCopyableLabel.swift
//
//  Created by Stephen Radford on 08/09/2015.
//  Copyright (c) 2015 Cocoon Development Ltd. All rights reserved.
//

import UIKit

class SRCopyableLabel: UILabel {

    override public var canBecomeFirstResponder: Bool {
        get {
            return true
        }
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        sharedInit()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        sharedInit()
    }

    func sharedInit() {
        isUserInteractionEnabled = true
        addGestureRecognizer(UILongPressGestureRecognizer(
            target: self,
            action: #selector(showMenu(sender:))
        ))
    }

    override func copy(_ sender: Any?) {
        UIPasteboard.general.string = text
        UIMenuController.shared.setMenuVisible(false, animated: true)
    }

    func showMenu(sender: Any?) {
        becomeFirstResponder()
        let menu = UIMenuController.shared
        if !menu.isMenuVisible {
            menu.setTargetRect(bounds, in: self)
            menu.setMenuVisible(true, animated: true)
        }
    }

    override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
        return (action == #selector(copy(_:))
    }
}

Updated for Swift 2.3

swift 3
error : Method does not override any method from its superclass

?!

Swift 3 version:

import UIKit

class CopyableLabel: UILabel {

    override public var canBecomeFirstResponder: Bool {
        get {
            return true
        }
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        sharedInit()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        sharedInit()
    }

    func sharedInit() {
        isUserInteractionEnabled = true
        addGestureRecognizer(UILongPressGestureRecognizer(
            target: self,
            action: #selector(showMenu(sender:))
        ))
    }

    override func copy(_ sender: Any?) {
        UIPasteboard.general.string = text
        UIMenuController.shared.setMenuVisible(false, animated: true)
    }

    func showMenu(sender: Any?) {
        becomeFirstResponder()
        let menu = UIMenuController.shared
        if !menu.isMenuVisible {
            menu.setTargetRect(bounds, in: self)
            menu.setMenuVisible(true, animated: true)
        }
    }

    override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
        if action == #selector(copy(_:)) {
            return true
        }

        return false
    }
}

Thanks for the reply, this is a great one

Just found @ehamberg's comment with the Swift 3 version and it would be great if you updated the original so it reflects on your blog post!

Do you know of some limitations, when using CopyableLabel in the Today widget? I can see, that the functions canBecomeFirstResponder and canPerformAction are called, but menu is not shown... Thanks!

Updated for iOS 13+

class CopyableLabel: UILabel {

    override public var canBecomeFirstResponder: Bool {
        get { 
            return true 
        }
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        sharedInit()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        sharedInit()
    }

    func sharedInit() {
        isUserInteractionEnabled = true
        addGestureRecognizer(UILongPressGestureRecognizer(
            target: self,
            action: #selector(showMenu(sender:))
        ))
    }

    override func copy(_ sender: Any?) {
        UIPasteboard.general.string = text
        UIMenuController.shared.hideMenu(from: self)
    }

    @objc func showMenu(sender: Any?) {
        becomeFirstResponder()
        let menu = UIMenuController.shared
        if !menu.isMenuVisible {
            UIMenuController.shared.showMenu(from: self, rect: bounds)
        }
    }

    override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
        if action == #selector(copy(_:)) {
            return true
        }

        return false
    }
}