Detection of Keyboard Closing

[Michael Doub]

Is there a way to detect that the user has closed the keyboard on Android?

Maybe someone can point out an appropriate technique to solve my problem.  I have a card with one editable field on it.  When I go to that card currently the focus immediately go to that field and the keyboard pops up.   I would like the field to remain editable, but only if it is selected by the user.  I would like to be notified upon completion.