@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scan);
ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
fragment = new MarshmallowBleScannerFragment();
fragment.setCallback(scanCallback);
fragmentTransaction.add(R.id.fragment_container, fragment);
fragmentTransaction.commit();
}
