if I convert many words（more than 50 words），it take too long.so I want to show a progress bar to the user or provide a button to cancel the task ?
There is currently no way of retrieving a progress indication of the recognition.
You can however determine whether the recognition is ongoing or not by checking `editor.isIdle()`.
I hope this helps,
We don't have a way to cancel an ongoing recognition yet, we are considering adding this capability in a future release.