private PickRingtone pickRingtone = new PickRingtone();

    public static class PickRingtone extends ActivityResultContract<Integer, Uri> {
        @NonNull
        @Override
        public Intent createIntent(@NonNull Context context, @NonNull Integer ringtoneType) {
            Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);
            intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE, RingtoneManager.TYPE_RINGTONE);
            intent.putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_DEFAULT, true);
            intent.putExtra(RingtoneManager.EXTRA_RINGTONE_DEFAULT_URI,
                    Settings.System.DEFAULT_RINGTONE_URI);
            intent.putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_SILENT, false);
            intent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI,
                    RingtoneManager.getActualDefaultRingtoneUri(PanelApp.app(),
                            RingtoneManager.TYPE_RINGTONE));
            return intent;
        }

        @Override
        public Uri parseResult(int resultCode, @Nullable Intent result) {
            if (resultCode != Activity.RESULT_OK || result == null) {
                return null;
            }
            return result.getParcelableExtra(RingtoneManager.EXTRA_RINGTONE_PICKED_URI);
        }
    }

 ActivityResultLauncher<Integer> mStartForResult = registerForActivityResult(pickRingtone,
            result -> {
                if (result != null) {
                    viewModel.setCallRingtone(result.toString());
                    Preference callRingtonePreference = findPreference(AppConstants.PROPERTY_CALL_RINGTONE);
                    if (callRingtonePreference != null)
                        callRingtonePreference.callChangeListener(null);
                }
            });

  mStartForResult.launch(requestCode);