https://github.com/codenameone/cn1-codescan
https://github.com/shannah/cn1-filechooser
https://github.com/codenameone/FingerprintScanner
https://github.com/rwanghk/QRMaker
https://github.com/littlemonkeyltd/QRScanner
All guis must extends FORMBASE. Thank u