Android NFC: enable and disable the NFC detected sounds

Question

I am dealing with NFC tags. My problem is that I cannot turn off the sound when NFC tags are detected. I started my research and also started getting confused:

• Turn off device's NFC sound
• Prevent alert tone when scanning / identifying an NFC intent
• How do I disable/change the NFC sounds?

Some say that we can and some that we can't disable those sounds.

Can we disable and enable the NFC sound programmatically?

Gwin

Answer 1

Starting with API level 19 (Android 4.4) you can disable the NFC sounds while your app is in the foreground by using the newer reader-mode API to listen for NFC tags. The reader-mode API has a flag FLAG_READER_NO_PLATFORM_SOUNDS that can be used to disable the NFC discovery sounds.

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

    NfcAdapter adapter = NfcAdapter.getDefaultAdapter(this);
    adapter.enableReaderMode(this,
            new NfcAdapter.ReaderCallback() {
                @Override
                public void onTagDiscovered(final Tag tag) {
                    // do something
                }
            },
            NfcAdapter.FLAG_READER_NFC_A |
            NfcAdapter.FLAG_READER_NFC_B |
            NfcAdapter.FLAG_READER_NFC_F |
            NfcAdapter.FLAG_READER_NFC_V |
            NfcAdapter.FLAG_READER_NFC_BARCODE |
            NfcAdapter.FLAG_READER_NO_PLATFORM_SOUNDS,
            null);
}

Woodsy

thank you for your answer, this is exactly what i am looking for. – Gwin

For some strange reason this didn't work. But putting the FLAG_READER_NO_PLATFORM_SOUNDS first on tags seemed to do the trick :) – Underbid

perfect solution i was looking for. thanks – Sisyphean

Thank you for your answer Michael. How can I transact APDUs from/to card using this code? IsoDep is not working for me! – Dorene