title: How can I read the NFC ID of another Android device?
body: <p>I want to exchange (or only read) the NFC tag ID from one Android device to another but I don't know if I should use peer-to-peer mode or emulate an NFC tag with HCE.</p>
  
  <p>If I use HCE, is the emulated tag ID unique?</p>
  
  <p>What is the better option or is there a simpler one?</p>