如何禁用默認的UIMenuItem而不影響消息UIMenuItem？

Question

有一種方法來禁用默認UIMenuItem

在不影響消息UIMenuItem？

viewDidLoad中：

JSQMessagesCollectionViewCell.registerMenuAction(#selector(UIResponderStandardEditActions.delete(_:))) 
    UIMenuController.shared.menuItems = [UIMenuItem.init(title: "Delete", action: Selector(("delete")))] 

Answer 1

使用

cell.textView.selectable = false 在cellForRow方法

Answer 2

在這裏，你選擇長按messageBubble時會出現什麼。

override func collectionView(_ collectionView: UICollectionView, canPerformAction action: Selector, forItemAt indexPath: IndexPath, withSender sender: Any?) -> Bool { 

    if (action == #selector(UIResponderStandardEditActions.copy(_:))) { 

     if(messages[indexPath.row].isMediaMessage) { 
      return false 
     } else { 
      return true 
     } 
    } 
    if (action == #selector(UIResponderStandardEditActions.cut(_:))) { 

     if(messages[indexPath.row].isMediaMessage) { 
      return false 
     } else { 
      return false 
     } 
    } 
    if (action == #selector(UIResponderStandardEditActions.paste(_:))) { 

     if(messages[indexPath.row].isMediaMessage) { 
      return false 
     } else { 
      return false 
     } 
    } 

    if (action == #selector(UIResponderStandardEditActions.delete(_:))) { 

     if(messages[indexPath.row].isMediaMessage) { 
      return true 
     } else { 
      return true 
     } 
    } 

    return super.canPerformAction(action, withSender: sender) 
} 

然後你選擇你想要的物品後會發生什麼，

override func collectionView(_ collectionView: UICollectionView, performAction action: Selector, forItemAt indexPath: IndexPath, withSender sender: Any?) { 

    if (action == #selector(UIResponderStandardEditActions.delete(_:))) { 
     print("deleted") 
     print(indexPath.row) 

     let messageKey = messages[indexPath.row].keyID 

     print("messageKey") 
     print(messageKey!) 

     messages.remove(at: indexPath.row) 
     collectionView.reloadData() 
    } 
    if (action == #selector(UIResponderStandardEditActions.copy(_:))) { 
     // do stuff 
    } 
} 

}