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POIntent.getAction results in NULL
 

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  1. POIntent.getAction results in NULL
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    <p>I was trying to implement the sample code for the NFC viewer from android developers, but I'm not recieving any action from my intent, here is my code:</p> <pre><code>@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.tag_viewer); mTagContent = (LinearLayout) findViewById(R.id.list); mTitle = (TextView) findViewById(R.id.title); final Intent queryIntent = getIntent(); final String queryAction = queryIntent.getAction(); if (Intent.ACTION_SEARCH.equals(queryAction)) { onNewIntent(getIntent()); } else { //nothing } // resolveIntent(getIntent()); } void resolveIntent(Intent intent) { // Parse the intent final String action = intent.getAction(); if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(action)) { // When a tag is discovered we send it to the service to be save. We // include a PendingIntent for the service to call back onto. This // will cause this activity to be restarted with onNewIntent(). At // that time we ryead it from the database and view it. Parcelable[] rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES); NdefMessage[] msgs; if (rawMsgs != null) { msgs = new NdefMessage[rawMsgs.length]; for (int i = 0; i &lt; rawMsgs.length; i++) { msgs[i] = (NdefMessage) rawMsgs[i]; } } else { // Unknown tag type byte[] empty = new byte[] {}; NdefRecord record = new NdefRecord(NdefRecord.TNF_UNKNOWN, empty, empty, empty); NdefMessage msg = new NdefMessage(new NdefRecord[] {record}); msgs = new NdefMessage[] {msg}; } // Setup the views // setTitle(R.string.); buildTagViews(msgs); } else { Log.e(TAG, "Unknown intent " + intent); finish(); return; } } @Override public void onNewIntent(final Intent newIntent) { super.onNewIntent(newIntent); final Intent queryIntent = getIntent(); setIntent(queryIntent); resolveIntent(queryIntent); } </code></pre> <p>And the intent filter:</p> <pre><code> &lt;activity android:name="TagReader_BuiltIn" android:launchMode="singleTop"&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; </code></pre> <p>the intent.getAction(); Always results in NUll, any ideas? thanks in advance</p>
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    1. USuser1337210
    1. USuser1337210
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    2. PO
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    1. COthe code `onNewIntent(getIntent());` the `getIntent` will return the activity's intent who call your activity, so you need check who start your activity, it has action or not?
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      1. POIntent.getAction results in NULL
      1. USidiottiger
    2. COUnder what circumstances are you expecting the `Intent`? Is the app started by tapping an NFC tag? Or is the app already running (in the foreground) and are you then tapping an NFC tag?
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      1. POIntent.getAction results in NULL
      1. USNFC guy
 

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