Examples with ReaderWriterManager net.rim.device.api.io.nfc.readerwriter.ReaderWriterManager used on opensource projects

Example 1 with ReaderWriterManager

use of net.rim.device.api.io.nfc.readerwriter.ReaderWriterManager in project Samples-for-Java by blackberry.

the class NdefListenerManager method registerListener.

/*
     * This registers with the NFC Reader Writer Manager indicating our interest in receiving notification when Smart Tags come
     * within range of the NFC antenna
     */
public void registerListener(NfcReadNdefSmartTagListener listener) {
    ReaderWriterManager nfcManager;
    Utilities.log("XXXX NfcReadNdefSmartTag about to add NDEF Message Listener");
    try {
        nfcManager = ReaderWriterManager.getInstance();
        /*
             * An NDEF record always contains:
             * 
             * * 3-bit TNF (Type Name Format) field: Indicates how to
             *   interpret the type field 
             * * Variable length type: Describes
             *   the record format 
             * * Variable length ID: A unique identifier
             *   for the record 
             * * Variable length payload: The actual data
             *   payload
             * 
             * The underlying record representation may be chunked across
             * several NDEF records when the payload is large.
             * 
             * NDEFRecord.TNF_WELL_KNOWN - indicates that we are interested
             * in NDEF records of Type Name Format (TNF): "WELL_KNOWN"
             * 
             * TNF_WELL_KNOWN included NFC RTD (Record Type Definitions)
             * types such as RTD_TEXT and RTD_URI meaning that they will
             * contain URIs or TEXT suitably encoded according to the NFC
             * RTD specification
             * 
             * "Sp" identifies the record type as Smart Poster - so we're
             * only interested in being notified of Smart Poster records
             * that contain plain text or URIs
             * 
             * The final parameter "true" identifies that the application
             * will be auto-started if it is not currently running when a
             * smart tag is brought within range of the NFC antenna.
             * 
             * This setting is persistent across device power resets.
             * 
             * When the application is restarted automatically on
             * presentation of a suitable smart tag to the device the
             * application will be re-started but it is necessary to
             * re-establish the NDEFMessageListener.
             * 
             * Upon registering the listener again the tag that caused the
             * application to be re-started is immediately presented to the
             * listener making what is really a two stage process seem
             * seamless.
             * 
             * It is important to re-start the listener within about 15 seconds
             * of the application being autostarted. Failure to do so will
             * result in the queued message being lost.
             * 
             * There is also no way to determine if the application was 
             * autostarted should you wish to automatically restart the 
             * listener in this case. Of course you could always leave your
             * own tracks in the sand using the Persistent Store.
             * 
             * This behaviour suggests that using the autostart option whilst
             * managing the setting up of the listener via the UI is a combination
             * that can lead to unexpected behaviour.
             * 
             */
        nfcManager.addNDEFMessageListener(listener, NDEFRecord.TNF_WELL_KNOWN, "Sp", true);
        Utilities.log("XXXX NfcReadNdefSmartTag add NDEF Message Listener success");
        rts.replace(Constants.LISTENER_STATE_TOKEN, new Boolean(true));
        ListenerControlScreen.getInstance().setLed();
    } catch (NFCException e) {
        e.printStackTrace();
        Utilities.log("XXXX NfcReadNdefSmartTag NFCException on register");
    }
}

Example 2 with ReaderWriterManager

use of net.rim.device.api.io.nfc.readerwriter.ReaderWriterManager in project Samples-for-Java by blackberry.

the class NdefListenerManager method unRegisterListener.

/*
     * This unregisters with the NFC Reader Writer Manager We no longer want to be notified of Smart Tag events
     */
public void unRegisterListener() {
    ReaderWriterManager nfcManager;
    Utilities.log("XXXX NfcReadNdefSmartTag about to remove NDEF Message Listener");
    try {
        nfcManager = ReaderWriterManager.getInstance();
        /*
             * This is the converse of the call to register our interest in tags of a certain type. It should identify the same
             * TNF and record type as when it was registered.
             */
        nfcManager.removeNDEFMessageListener(NDEFRecord.TNF_WELL_KNOWN, "Sp");
        Utilities.log("XXXX NfcReadNdefSmartTag remove NDEF Message Listener success");
        rts.replace(Constants.LISTENER_STATE_TOKEN, new Boolean(false));
        ListenerControlScreen.getInstance().setLed();
    } catch (NFCException e) {
        e.printStackTrace();
        Utilities.log("XXXX NfcReadNdefSmartTag NFCException on unregister");
    }
}

Example 3 with ReaderWriterManager

use of net.rim.device.api.io.nfc.readerwriter.ReaderWriterManager in project Samples-for-Java by blackberry.

the class NfcVirtTargScreen method stopDetectionListener.

protected void stopDetectionListener(NfcVirtDetectionListener detectionListener) {
    ReaderWriterManager nfcManager;
    Utilities.log("XXXX NfcVirtTarg about to remove Detection Listener");
    try {
        nfcManager = ReaderWriterManager.getInstance();
        /*
             * This is the converse of the call to register our interest in tags of a certain type.
             */
        nfcManager.removeDetectionListener(detectionListener);
        Utilities.log("XXXX NfcVirtTarg remove Detection Listener success");
        _screen.logEvent("info:Detection Listener removed");
    } catch (NFCException e) {
        e.printStackTrace();
        Utilities.log("XXXX NfcVirtTarg NFCException on unregister");
        _screen.logEvent("info:Detection Listener remove failed");
    }
}

Example 4 with ReaderWriterManager

use of net.rim.device.api.io.nfc.readerwriter.ReaderWriterManager in project Samples-for-Java by blackberry.

the class DetectionListenerManager method unRegisterListener.

public void unRegisterListener(NfcWriteNdefSmartTagListener nfcWriteNdefSmartTagListener) {
    ReaderWriterManager nfcManager;
    Utilities.log("XXXX NfcWriteNdefSmartTag about to remove Detection Listener");
    try {
        nfcManager = ReaderWriterManager.getInstance();
        /*
             * This is the converse of the call to register our interest in
             * tags of a certain type.
            */
        nfcManager.removeDetectionListener(nfcWriteNdefSmartTagListener);
        Utilities.log("XXXX NfcWriteNdefSmartTag remove Detcetion Listener success");
        logEvent("Detection Listener removed");
        rts.replace(Constants.LISTENER_STATE_TOKEN, new Boolean(false));
    } catch (NFCException e) {
        e.printStackTrace();
        Utilities.log("XXXX NfcWriteNdefSmartTag NFCException on unregister");
        logEvent("Detection Listener remove failed");
    }
}

Example 5 with ReaderWriterManager

use of net.rim.device.api.io.nfc.readerwriter.ReaderWriterManager in project Samples-for-Java by blackberry.

the class NfcVirtTargScreen method startDetectionListener.

protected void startDetectionListener(NfcVirtDetectionListener detectionListener) {
    ReaderWriterManager nfcManager;
    Utilities.log("XXXX NfcVirtTarg about to add Detection Listener");
    try {
        nfcManager = ReaderWriterManager.getInstance();
        nfcManager.addDetectionListener(detectionListener);
        Utilities.log("XXXX NfcVirtTarg add Detection Listener success");
        _screen.logEvent("info:Detection Listener added");
    } catch (NFCException e) {
        e.printStackTrace();
        Utilities.log("XXXX NfcVirtTarg NFCException on register");
        _screen.logEvent("info:Detection Listener add failed");
    }
}