Java Question Pass activity as parameter

public void SaveTag(ActivityWrapper activity) {
Activity act = activity.getObject(); //getObject() is a BALayout
}

public void EnableForeground(BA ba) throws IllegalStateException {
    Context thisActivityContext = ba.context;
    NfcAdapter nfcDefAdapter = NfcAdapter.getDefaultAdapter(thisActivityContext);
    // If NFC Adapter exists Then enable Foreground Dispatch
    if (nfcDefAdapter != null) {
        Activity thisActivity = ba.activity;
        Intent thisActivityIntent = new Intent(thisActivityContext, thisActivityContext.getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(thisActivityContext, 0, thisActivityIntent, 0);
        nfcDefAdapter.enableForegroundDispatch(thisActivity, pendingIntent, null, null);
    }
}