title: Intent.getAction results in NULL
body: <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>