sample/src/main/java/com/gordonwong/materialsheetfab/sample/MainActivity.java
private void setupDrawer() {
		drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
		drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.opendrawer,
				R.string.closedrawer);
		drawerLayout.setDrawerListener(drawerToggle);
	}
private void setupDrawer() {
		drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
		drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.opendrawer,
				R.string.closedrawer);
		drawerLayout.setDrawerListener(drawerToggle);
	}
Sets up the navigation drawer.