1. 首先，在布局文件（比如activity_main.xml）中，定义一个DrawerLayout和NavigationView。将DrawerLayout作为根布局，同时将NavigationView作为DrawerLayout的第一个子视图。

示例代码：

2. 创建一个NavController，在Activity（或者Fragment）中使用Navigation.findNavController()方法。

示例代码：

public class MainActivity extends AppCompatActivity {

    private NavController navController;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);
        navController = Navigation.findNavController(this, R.id.main_fragment_container);

        NavigationView navigationView = findViewById(R.id.navigation_view);
        navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
                menuItem.setChecked(true);
                drawerLayout.closeDrawers();

                switch(menuItem.getItemId()) {
                    case R.id.nav_first_fragment:
                        navController.navigate(R.id.firstFragment);
                        break;
                    case R.id.nav_second_fragment:
                        navController.navigate(R.id.secondFragment);
                        break;
                    case R.id.nav_third_fragment:
                        navController.navigate(R.id.thirdFragment);
                        break;
                }

                return true;
            }
        });
    }
}

3. 在ActionBar或者ToolBar中添加一个按钮，用于打开或者关闭导航栏。

示例代码：

public class MainActivity extends AppCompatActivity {

    private DrawerLayout drawerLayout;
    private NavController navController;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);
        navController = Navigation.findNavController(this, R.id.main_fragment_container);

        NavigationView navigationView = findViewById(R.id.navigation_view);
        navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem menuItem