CODEWITHSUNDEEP
swiftuitableviewuitextview
jz_
jz_

Reputation: 358

Need to edit a UITextView inside an expanding UITableViewCell

I have a dynamic cell inside a TableView that automatically sizes based the info in a TextView. This happens inside a tableView: didSelectRowAt function. A simplified version is below:

 override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    guard let cell = tableView.cellForRow(at: indexPath) as? cell else { return }

if cell.textViewOutlet.attributedText.length != 12 {
cell.textViewOutlet.attributedText = NSMutableAttributedString(
    string: "Expand:\n\n\n " +  String(indexPath.row)
)
} else {
    cell.textViewOutlet.attributedText = NSMutableAttributedString(
        string: "Cell: " +  String(indexPath.row)
    )
}

This shows as on the following image: enter image description here

In the image Cell 1 is expanded, Cell 0 and 2 are compressed. With this setup I can have the user alternate between expanding and compressing the cell (and the message) by selecting the cell.

My problem is I want to give the user the ability to edit the text. Of course, when the user clicks to edit the "didSelectRowAt" function is entered.

What is the best way to differentiate the edit action from the expand action? Can I make the action some multi-touch or long touch action?

One constraint is that whatever touch method that would work in the textView would also have to be used in other cells on the app that do not have these expand capabilities. Therefore, it would be cleaner if I can use another technique to expand.

Upvotes: 1

Views: 249

Answers (1)

jz_
jz_

Reputation: 358

I solved this problem by replacing the didSelectRowAt actions with a pinch gesture to expand the cell or to contract it. Therefore, the textView editing could proceed as normal.

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
...
 let pinch = UIPinchGestureRecognizer(target: self,
                                             action: #selector(pinchResponse(recognizer:)))

        cell.addGestureRecognizer(pinch)
           cell.isUserInteractionEnabled = true
 return cell
}

@objc  func pinchResponse(recognizer: UIPinchGestureRecognizer)  {
    print("in pinchResponse  recognizer.scale: \(recognizer.scale)")
    if recognizer.state == UIGestureRecognizer.State.ended {
        let pinchLocation = recognizer.location(in: tableView)
        if let pinchIndexPath = tableView.indexPathForRow(at: pinchLocation) {
            if let pinchedCell = tableView.cellForRow(at: pinchIndexPath) as? StepTableViewCell {

                // 2
                if recognizer.scale > 1.0 {
                    print("Expand pinchIndexPart.count: \(pinchIndexPath.count)")
                    // Add expand actions
                    print("pinchedCell: \(String(describing: pinchedCell.recipeNbrLabel.text))")


                } else {
                    print("Contract pinchIndexPart.count: \(pinchIndexPath.count)")
                    // Add contract actions
                    print("pinchedCell: \(String(describing: pinchedCell.recipeNbrLabel.text))")


                }

                tableUpdate()
            }
        }
    }
}

Upvotes: 1

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