如何在安卓系统中打开一个点击DrawerLayout navigationView项目的活动？

// 导入必要的类
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;

public class MainActivity extends AppCompatActivity {

    private DrawerLayout drawerLayout;
    private NavigationView navigationView;

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

        // 获取DrawerLayout和NavigationView的实例
        drawerLayout = findViewById(R.id.drawer_layout);
        navigationView = findViewById(R.id.navigation_view);

        // 设置菜单项的监听器
        navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(MenuItem menuItem) {
                // 根据菜单项的ID执行相应的操作
                switch (menuItem.getItemId()) {
                    case R.id.menu_item1:
                        // 打开活动1
                        Intent intent1 = new Intent(MainActivity.this, Activity1.class);
                        startActivity(intent1);
                        break;
                    case R.id.menu_item2:
                        // 打开活动2
                        Intent intent2 = new Intent(MainActivity.this, Activity2.class);
                        startActivity(intent2);
                        break;
                    // 其他菜单项的处理...
                }

                // 关闭导航菜单
                drawerLayout.closeDrawers();
                return true;
            }
        });
    }
}