问Android条形码扫描仪和NFC

EN

// Called with the activity is first created.
@Override
public void onCreate(Bundle savedInstanceState) {             
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    MyApplication.getInstance().acquireWakeLock(this);
    mainScreen();
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

    // sound
    tg = new ToneGenerator(AudioManager.STREAM_MUSIC, ToneGenerator.MAX_VOLUME);
    chBeep.setChecked(beepMode);

}

// check if nfc is detected
@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    if (intent.getAction().equals(NfcAdapter.ACTION_TAG_DISCOVERED)) {
        ((TextView) findViewById(R.id.textDecode)).setText(
                                                    ByteArrayToHexString(intent.getByteArrayExtra(NfcAdapter.EXTRA_ID)));
       //THIS IS NOT WORKING AND CAUSE THE BARCODE TO STOP AFTER I RUN NFC
        /*isNFC = true*/            
    }
}

//Function to decode the NFC to String    
private String ByteArrayToHexString(byte[] inarray) {
    int i, j, in;
    String[] hex = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" };
    String out = "";

    for (j = inarray.length - 1; j >= 0; --j) {
        in = (int) inarray[j] & 0xff;
        i = (in >> 4) & 0x0f;
        out += hex[i];
        i = in & 0x0f;
        out += hex[i];

    }
    return out;

}

@Override
    protected void onPause() {
        super.onPause();
        // disabling foreground dispatch:
        NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
        nfcAdapter.disableForegroundDispatch(this);

        if (bcr != null) {
            setIdle();
            bcr.release();
            bcr = null;
        }
    }

// Called when the activity is about to start interacting with the user.
    @Override
    protected void onResume() {

        super.onResume();

        // creating pending intent:
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,
                                        new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
        // creating intent receiver for NFC events:
        IntentFilter filter = new IntentFilter();
        filter.addAction(NfcAdapter.ACTION_TAG_DISCOVERED);
        filter.addAction(NfcAdapter.ACTION_NDEF_DISCOVERED);
        filter.addAction(NfcAdapter.ACTION_TECH_DISCOVERED);
        // enabling foreground dispatch for getting intent from NFC event:
        NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
        nfcAdapter.enableForegroundDispatch(this, pendingIntent, new IntentFilter[] { filter }, this.techList);

        //THIS IS NOT WORKING AND CAUSE THE BARCODE TO STOP AFTER I RUN NFC
        /*if(isNFC)
            return;*/  

        // Bar code reader
        state = STATE_IDLE;

        try {
            dspStat(getResources().getString(R.string.app_name) + " v"
                                            + this.getPackageManager().getPackageInfo(this.getPackageName(), 0).versionName);

            if (android.os.Build.VERSION.SDK_INT >= 18)
                bcr = BarCodeReader.open(getApplicationContext()); // Android
            else
                bcr = BarCodeReader.open(); // Android 2.3

            if (bcr == null) {
                dspErr("open failed");
                return;
            }
            bcr.setDecodeCallback(this);
        } catch (Exception e) {
            dspErr("open excp:" + e);
        }

        bcr.setParameter(765, 0);
    }