/**
 * Constructs an intent filter from user input. This intent-filter is used for cross-profile
 * intent.
 *
 * @return a user constructed intent filter.
 */
private IntentFilter getIntentFilter() {
    if (mActions.isEmpty() && mCategories.isEmpty() && mDataSchemes.isEmpty()
            && mDataTypes.isEmpty()) {
        return null;
    }
    IntentFilter intentFilter = new IntentFilter();
    for (String action : mActions) {
        intentFilter.addAction(action);
    }
    for (String category : mCategories) {
        intentFilter.addCategory(category);
    }
    for (String dataScheme : mDataSchemes) {
        intentFilter.addDataScheme(dataScheme);
    }
    for (String dataType : mDataTypes) {
        try {
            intentFilter.addDataType(dataType);
        } catch (MalformedMimeTypeException e) {
            Log.e(TAG, "Malformed mime type: " + e);
            return null;
        }
    }
    return intentFilter;
}
 

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mNfcAdapter = NfcAdapter.getDefaultAdapter(this);

    setContentView(R.layout.main);
    findViewById(R.id.write_tag).setOnClickListener(mTagWriter);

    // Handle all of our received NFC intents in this activity.
    mNfcPendingIntent = PendingIntent.getActivity(this, 0,
            new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);

    // Intent filters for reading a note from a tag or exchanging over p2p.
    IntentFilter ndefDetected = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
    try {
        ndefDetected.addDataType("text/plain");
    } catch (MalformedMimeTypeException e) { }
    mNdefExchangeFilters = new IntentFilter[] { ndefDetected };

    // Intent filters for writing to a tag
    IntentFilter tagDetected = new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED);
    mWriteTagFilters = new IntentFilter[] { tagDetected };
}
 

/**
 * @return Registration id to use in unregister(regId) method
 */
public static synchronized int register(String receiverId, EventsListener listener) {
    check();

    if (listener == null) throw new NullPointerException("Listener cannot be null");

    EventsReceiver receiver = new EventsReceiver();
    receiver.mReceiverId = receiverId;
    receiver.mListener = listener;

    try {
        sAppContext.registerReceiver(receiver, new IntentFilter(sIntentAction, BASE_MIME_TYPE + "/*"));
    } catch (MalformedMimeTypeException e) {
        e.printStackTrace();
    }

    sReceiversMap.put(++sRegistrationId, receiver);

    for (Intent sticky : sStickyEventsMap.values()) {
        receiver.onReceive(sAppContext, sticky);
    }

    return sRegistrationId;
}
 

private static void addDataTypeUnchecked(IntentFilter filter, String type) {
    try {
        filter.addDataType(type);
    } catch (MalformedMimeTypeException ex) {
        throw new RuntimeException(ex);
    }
}
 

private static void addDataTypeUnchecked(IntentFilter filter, String type) {
    try {
        filter.addDataType(type);
    } catch (MalformedMimeTypeException ex) {
        throw new RuntimeException(ex);
    }
}
 

private static void addDataTypeUnchecked(IntentFilter filter, String type) {
    try {
        filter.addDataType(type);
    } catch (MalformedMimeTypeException ex) {
        throw new RuntimeException(ex);
    }
}
 

public IntentFilter buildFilter() {
    Log.i(TAG, "buildFilter()");
    IntentFilter filter = new IntentFilter(DispatchResponseReceiver.BROADCAST_RESPONSE);
    filter.addDataScheme(Encounters.CONTENT_URI.getScheme());
    try {

        filter.addDataType(Encounters.CONTENT_ITEM_TYPE);
    } catch (MalformedMimeTypeException e) {

    }
    return filter;
}
 

public IntentFilter buildFilter() {
    IntentFilter filter = new IntentFilter(Response.RESPONSE);
    try {
        filter.addDataType(EncounterTasks.CONTENT_TYPE);
        filter.addDataType(EncounterTasks.CONTENT_ITEM_TYPE);
        filter.addDataType(Subjects.CONTENT_TYPE);
    } catch (MalformedMimeTypeException e) {
    }
    return filter;
}
 

public static IntentFilter[] getIntentFilterArray() {
    IntentFilter ndef = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
    try {
        ndef.addDataType(SONY_MIME_TYPE);
    } catch (MalformedMimeTypeException e) {
        throw new RuntimeException("fail", e);
    }
    return new IntentFilter[]{ndef};
}
 

@Override
public void onCreate(Bundle savedState) {
    super.onCreate(savedState);

    setContentView(R.layout.foreground_dispatch);
    mText = (TextView) findViewById(R.id.text);
    mText.setText("Scan a tag");

    mAdapter = NfcAdapter.getDefaultAdapter(this);

    // Create a generic PendingIntent that will be deliver to this activity. The NFC stack
    // will fill in the intent with the details of the discovered tag before delivering to
    // this activity.
    mPendingIntent = PendingIntent.getActivity(this, 0,
            new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);

    // Setup an intent filter for all MIME based dispatches
    IntentFilter ndef = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
    try {
        ndef.addDataType("*/*");
    } catch (MalformedMimeTypeException e) {
        throw new RuntimeException("fail", e);
    }
    mFilters = new IntentFilter[] {
            ndef,
    };

    // Setup a tech list for all NfcF tags
    mTechLists = new String[][] { new String[] { NfcF.class.getName() } };
}