Adding User Profile Header

MainActivity.java

private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private View mHeaderView;

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

    Toolbar toolbar = (Toolbar) findViewById(R.id.main_toolbar);
    setSupportActionBar(toolbar);

    mHeaderView = getLayoutInflater().inflate(R.layout.user_header_layout, null);
    mFragmentManager = getSupportFragmentManager();

    mDrawerList = (ListView) findViewById(R.id.drawer_listview);
    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, toolbar,
            R.string.open, R.string.close);
    mDrawerToggle.setDrawerIndicatorEnabled(true);
    mDrawerLayout.setDrawerListener(mDrawerToggle);
    mDrawerList.addHeaderView(mHeaderView);

    //set adapter
    //set onitemclicklistener
}