gistfile1.java

    @Override
    protected void onResume() {
        super.onResume();
        Log.d(TAG, "enableForegroundMode");

        // foreground mode gives the current active application priority for reading scanned tags
        IntentFilter tagDetected = new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED); // filter for tags
        IntentFilter[] writeTagFilters = new IntentFilter[] {tagDetected};
        nfcAdapter.enableForegroundDispatch(this, nfcPendingIntent, writeTagFilters, null);
    }