onResume method for the NFC Reader tutorial

OnResume.java

@Override
protected void onResume() {
    super.onResume();

    if (nfcAdapter != null) {
        if (!nfcAdapter.isEnabled())
            showWirelessSettings();

        nfcAdapter.enableForegroundDispatch(this, pendingIntent, null, null);
    }
}

private void showWirelessSettings() {
  Toast.makeText(this, "You need to enable NFC", Toast.LENGTH_SHORT).show();
  Intent intent = new Intent(Settings.ACTION_WIRELESS_SETTINGS);
  startActivity(intent);
}