public void addFragmentToViewPager(Contact receiver) {
Bundle bundle = new Bundle();
bundle.putSerializable("data", receiver);
FragmentChatItem fci = new FragmentChatItem();
fci.setArguments(bundle);
adapter.addFrag(fci, receiver);
adapter.notifyDataSetChanged();
if (adapter.getCount() > 0) {
tabLayout.setupWithViewPager(viewPager);
}
viewPager.setCurrentItem(adapter.getCount() - 1);
setupTabLayout();
}
