Android Question NFC tag listener (near/far) in continuos for Android

[RenewMe]

I'm looking for a B4A application that listens for the presence of an NFC tag and signals both its arrival and departure.
A plus would be if the application could display a label on the screen that says TAG RECEIVED and TAG REMOVED.
Example: I place a tag near the tag and receive a "tag close" message, nothing happens until I move the tag away and receive a "tag removed" message.

 

[Erel]

Start here: https://www.b4x.com/android/forum/threads/reading-ndef-data-from-nfc-tags.14931/#content

 

[RenewMe]

Start here: https://www.b4x.com/android/forum/threads/reading-ndef-data-from-nfc-tags.14931/#content

Thank you Erel !