How to differentiate between user-typed text vs programmatic calls to insertText(_:) in UITextView subclass?

Question

vipulgupta012 OP

Created 3w

Replies 1

Boosts 0

Participants 2

Hi all,

I’m subclassing UITextView and overriding insertText(_:) to intercept and log input:


class TWTextView: UITextView {
    override func insertText(_ text: String) {
        print("insertText() : \(text)")
        super.insertText(text)
    }
}

This works fine, but I’ve noticed that insertText(_:) is invoked both when:

The user types something in the text view (via hardware/software keyboard).
I programmatically call myTextView.insertText("Hello") from my own code.

I’d like to be able to distinguish between these two cases — i.e., know whether the call was triggered by the user or by my own programmatic insert.

Is there any recommended way or system-provided signal to differentiate this?

Thanks in advance!

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Answer 1

Claude31 OP

3w

Just an idea, but I didn't try yet.

create a Bool stat var userTyped
in insert, test for userTyped
Each time you set text programmatically, userTyped = false
add a modifier to the TextField

      TextField(/* parameters*/)
        .onKeyPress(action: {keyPress in
          userTyped = true
        })

Please tell if it works.

0