public class MainActivity extends AppCompatActivity {
    private DrawerLayout mDrawerLayout;
    private ActionBarDrawerToggle mDrawerToggle;
    private FragmentManager fragmentManager;
    private NavigationView nvDrawer;
    private Toolbar toolbar;
    private String userId, personName;
    private TextView emailProfile;
    static final String STATE_SELECTED_POSITION = "orientation";
    private int mCurrentSelectedPosition = 0;
    private SharedPreferences settings;
    private Firebase peopleRef;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        peopleRef = new Firebase("https://beartracks.firebaseio.com/0");

        if (savedInstanceState != null) {
            mCurrentSelectedPosition =
                    savedInstanceState.getInt(STATE_SELECTED_POSITION);
        }
        setupToolbar();
        setupNavDrawer();
        setupNavDrawerHeader();

        settings = getSharedPreferences(welcome_screen.PREFS_NAME, MODE_PRIVATE);

        fragmentManager = getSupportFragmentManager();
        //setup default fragment
        Home_Fragment home_fragment = new Home_Fragment();
        fragmentManager.beginTransaction().replace(R.id.content_holder, home_fragment).commit();

    }

    private void makeToast(String name){
        Toast.makeText(this, name + "hiiiiii", Toast.LENGTH_SHORT).show();
    }

    private void setupNavDrawer(){
        if(toolbar != null){
            mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
            // Find and setup drawerview
            nvDrawer = (NavigationView) findViewById(R.id.nvView);
            setupDrawerContent(nvDrawer);

            mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                    R.string.drawer_open, R.string.drawer_close);

            mDrawerLayout.setDrawerListener(mDrawerToggle);
        }
    }

    private void setupNavDrawerHeader(){

        peopleRef.addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                for (DataSnapshot child : dataSnapshot.getChildren()) {
                    //Nothing in here is being called
                    String name = (String) child.child("name").getValue();
                    makeToast(name);
                }
            }

            @Override
            public void onCancelled(FirebaseError firebaseError) {
                makeToast("error");
            }
        });

        emailProfile = (TextView) findViewById(R.id.userEmailDisplay);
        emailProfile.setText(personName);
    }