How to disable Dragging in UITextView in iOS 11

Question

I am using UITextview in UITableview with copy and link detection for selection. Drag and drop is working without implementing Drag and drop feature on UITextview. So I want to disable UITextView drag and drop...

Answer 1

To disable the text dragging (where the text "pops out" and can be dragged across the screen), try the following:

if #available(iOS 11.0, *) { 
    textView.textDragInteraction?.isEnabled = false 
}

Answer 2

I had a similar problem and have found a solution suitable for me.

So, I had a TableView with a single TextView inside every cell. I wanted to enable drag/drop for TableView in order to be able to move cells. But when I was long-pressing a cell, I was actually pressing its TextView, starting the drag session for it either. And whenever I tried to move that cell to a new position in TableView, the app was trying to insert the text from that cell's TextView to a new cell's TextView, performing a "drag and drop text copy operation".

In order to disable such kind of interaction you can try the following:

1. Make an extension for your UITableViewCell object (in YourTableViewCell.swift file, linked to YourTableViewCell.xib):

extension YourTableViewCell: UITextDropDelegate {
  func textDroppableView(_ textDroppableView: UIView & UITextDroppable, proposalForDrop drop: UITextDropRequest) -> UITextDropProposal {
    return UITextDropProposal(operation: .cancel)
  }
}

2. Make YourTableViewCell a drop delegate for a TextView (also in YourTableViewCell.swift)

override func awakeFromNib() {
  super.awakeFromNib()
  YourTextView.textDropDelegate = self
}

Where YourTextView is an outlet for your cell's text view

This will help your app to stop trying to insert text inside UITextView in your TableView.
Hope it helps someone.