Detect Return From Mobile Keyboard Without Native Field?

[Scott Rossi]

On Android...  I have values in some standard fields (not native) that I
need to send to a handler.  How can I trap the return key event on the
mobile keyboard without having focus on a native field?  Neither
inputReturnKey or returnInField appears to get triggered.

Thanks for any suggestions.

Regards,

Scott Rossi
Creative Director
Tactile Media, UX/UI Design