title: Getting the NFC Tag Serial Number
body: <p>This is my first project working with NFC. I would like to simply get the ID for the NFC Tag. I have been following the response from this <a href="https://stackoverflow.com/questions/4815718/getting-the-nfc-hardware-id-in-android">post</a>. Here is the code:</p>
  
  <pre><code>public void onResume() {
          super.onResume();
  
      if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(getIntent().getAction())) {
  
          Toast.makeText(this,"NFC on resume working",Toast.LENGTH_LONG).show();
          byte[] tagId = getIntent().getByteArrayExtra(NfcAdapter.EXTRA_ID);
          Log.i("EHEHEHEHEHE",tagId + "");
      }
  //process the msgs array
  }
  </code></pre>
  
  <p>This is the response of the code:</p>
  
  <pre><code>07-06 22:07:29.804  16729-16729/za.co.bookbay.nfcplay I/EHEHEHEHEHE﹕ [B@423a1e18
  07-06 22:08:08.644  16729-16729/za.co.bookbay.nfcplay I/EHEHEHEHEHE﹕ [B@423bfde0
  07-06 22:08:09.574  16729-16729/za.co.bookbay.nfcplay I/EHEHEHEHEHE﹕ [B@423d6ec8
  </code></pre>
  
  <p>Now this number keeps changing, hence this leads me to believe that the above code is not getting the Tag's serial number or is this correct. If so, what is the reason for the number changing?</p>