UITextView with custom NSUndoManager breaks auto-enabling of software keyboard undo button

Question

Created Sep ’22

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I have a custom UITextView where entering text causes the undo button in the software keyboard to be enabled. When I override the undo manager like this:

class TextView: UITextView {

    let _undoManager = UndoManager()

    override var undoManager: UndoManager? {
        return _undoManager
    }

}

the auto-enabling of the undo button doesn't work anymore. What is the correct way of providing my own undo manager?

Boost

Answer 1

James from San Diego OP

Aug ’24

I also want to set the UITextView's undoManager because I need to share undo/redo across multiple views on iPad. Any suggestions?

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