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POListening for credit card info with NFC
 

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  1. POListening for credit card info with NFC
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    <p>Is there any working sample on how to create sample app listening for credit card presence?</p> <p>I tried this piece of code from Android samples but nothing happens when I scan the card (<code>NFC</code> is working I hear the beep sound)</p> <pre><code> public class MainActivity extends Activity { private NfcAdapter mAdapter; private PendingIntent mPendingIntent; private IntentFilter[] mFilters; private String[][] mTechLists; private TextView mText; private int mCount = 0; @Override public void onCreate(Bundle savedState) { super.onCreate(savedState); setContentView(R.layout.activity_main); mAdapter = NfcAdapter.getDefaultAdapter(this); mPendingIntent = PendingIntent.getActivity(this, 0, new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0); IntentFilter ndef = new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED); try { ndef.addDataType("*/*"); } catch (MalformedMimeTypeException e) { throw new RuntimeException("fail", e); } mFilters = new IntentFilter[] { ndef, }; mTechLists = new String[][] { new String[] { NfcF.class.getName() } }; } @Override public void onResume() { super.onResume(); mAdapter.enableForegroundDispatch(this, mPendingIntent, mFilters, mTechLists); String action = getIntent().getAction(); //allways MAIN, even after scanning a card Parcelable[] msg1 = getIntent().getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES); //allways null Parcelable[] msg2 = getIntent().getParcelableArrayExtra(NfcAdapter.EXTRA_TAG); //allways null } @Override public void onNewIntent(Intent intent) { Log.i("Foreground dispatch", "Discovered tag with intent: " + intent); mText.setText("Discovered tag " + ++mCount + " with intent: " + intent); } @Override public void onPause() { super.onPause(); mAdapter.disableForegroundDispatch(this); } } </code></pre> <p>Maybe there is something wrong with my <code>Manifest</code> file:</p> <p> </p> <pre><code>&lt;uses-sdk android:minSdkVersion="16" android:targetSdkVersion="17" /&gt; &lt;uses-permission android:name="android.permission.NFC" /&gt; &lt;uses-feature android:name="android.hardware.nfc" android:required="true" /&gt; &lt;application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" &gt; &lt;activity android:name="pl.aprilapps.nfcreader.MainActivity" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;intent-filter&gt; &lt;action android:name="android.nfc.action.TAG_DISCOVERED" /&gt; &lt;category android:name="android.intent.category.DEFAULT" /&gt; &lt;/intent-filter&gt; &lt;intent-filter&gt; &lt;action android:name="android.nfc.action.NDEF_DISCOVERED" /&gt; &lt;category android:name="android.intent.category.DEFAULT" /&gt; &lt;data android:mimeType="text/plain" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;/application&gt; </code></pre> <p></p>
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    1. PTQuestion
    1. USNeha Shukla
    1. USJacek Kwiecień
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    1. COHere a nice answer: http://stackoverflow.com/questions/9648224/reading-visa-paywave-credit-card-details-via-nfc-on-android
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      1. USartemiygrn
    2. CONot really, all answers link to sdks, and I want to create my own
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      1. USJacek Kwiecień
    3. COIf you are refering to EMV-compliant credit cards, you might want to make your app sensitive to IsoDep tech instead of NfcF (which is certainly not used by EMV credit cards). Also your credit card will typically not contain an NDEF message, so skip those intent filters.
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      1. USMichael Roland
 

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