Custom Keyboard extension with UITextField

Question

I have custom keyboard extension with UITextField in it. I am able switch to UITextField's text input, but cannot switch back to self.textDocumentProxy. Does anybody know, how to do something like [self.textDocumentProxy becomeFirstResponder]?

(By the way, it looks like "GIF Keyboard" app provides such possibility)

just a question: I guess it's not possible launch the 'default' iOS keyboard recursively from within the extension is it? .-. — thisIsTheFoxe, Dec 23 '19 at 15:56
Hello. I know this is old question but may I know how you switch `UITextField` input? — albilaga, Sep 07 '20 at 18:44

score 3 · Accepted Answer · edited May 23 '17 at 12:33

I've implemented next workaround for this:

My textFied inherits from UITextField. UserInteraction disabled to prevent it from becomeFirstResponder (because you are not able switch back to system input). I've added blinking UIView as cursor imitation (blinking animation). Change this cursor origin.x in overwrited setText: method by calculating length of current string (use boundingRectWithSize: method for this).
When user types something I am checking if textField is active (showed) and then adding/removing symbols to textField (with setText:) or self.textDocumentProxy insertText:/deleteBackward methods accordingly.

Custom Keyboard extension with UITextField

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