You want to have a clipboard and simply communicating without using your data plan? Or you want to share the text with another person lying next to you but you do not have the latest contactless technology and NFC?
So PasteQR is the application you need. It allows you to share, copy and paste text between your smartphone and tablets.
Sample application for library-Form Validator. You can find more information on http://www.throrinstudio.com.
If you want to use this library, you can find the source code at this address: https://github.com/throrin19/Android-Validator