Hi, I am new to android, and got one nexus s, so while trying to play with NFC Capabilities, when i try to write to a mifare classic 1k card , Ndef.get(tag) returns null, upon searching, i find that tag is not listed in tech list. but when i issue getTechList() command, i am able to find MifareClassic , NdefA and Ndefformatable are listed, so where am i missing.
here is my code public void onClick(View v) { IntentFilter ndef=new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED ); try{ ndef.addDataType("*/*"); }catch(MalformedMimeTypeException e){ throw new RuntimeException("fail",e); } mFilters=new IntentFilter[]{ndef,}; showMessage( mFilters.toString()); // Setup a tech list for all NfcF tags mTechLists = new String[][] { new String[] { MifareClassic.class .getName() } }; Intent intent=getIntent(); String action=intent.getAction(); if(NfcAdapter.ACTION_TECH_DISCOVERED.equals(action) ){ String msg="Discovered Tag with Intent " + intent; status_Data.setText(msg); Tag tagFromintent=intent.getParcelableExtra(NfcAdapter.EXTRA_TAG); MifareClassic mfc=MifareClassic.get(tagFromintent); boolean auth=false; try { String[] ttype=tagFromintent.getTechList(); // Ndef ndef1=Ndef.get(tagFromintent); [here i am getting null] mfc.connect(); auth = mfc.authenticateSectorWithKeyA(0, MifareClassic.KEY_DEFAULT); } catch (IOException e1) { status_Data.setText("Authentication of Block 1 Failed"); } try { if (auth){ write(tagFromintent);} } catch (IOException e) { status_Data.setText(e.toString()); } catch (FormatException e) { status_Data.setText(e.toString()); //e.printStackTrace(); } }else{ showMessage("Nothing to read"); } } }; any help will be greatly appriciated. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en