在片段内显示底部导航栏

Question

我想在内部显示 Bottom Navigation View 片段，就像Instagram一样。首先是否可以在片段内添加底部导航视图？如果是，那又如何？

这是在onCreateView内：

private BottomNavigationView.OnNavigationItemSelectedListener
        mOnNavigationItemSelectedListener = new BottomNavigationView.OnNavigationItemSelectedListener() {
    @Override
    public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
        Fragment fragment;
        switch (menuItem.getItemId()){
            case R.id.navigation_home:
                toolbar.setTitle("Home");
                return true;
            case R.id.navigation_attend:
                toolbar.setTitle("Attendance");
                return true;
            case R.id.navigation_inquire:
                toolbar.setTitle("Inquiry");
                return true;
            case R.id.navigation_help:
                toolbar.setTitle("Help Desk");
                return true;
            case R.id.navigation_setting:
                toolbar.setTitle("Profile");
                return true;
        }

        return false;
    }
};

根据https://www.androidhive.info/2017/12/android-working-with-bottom-navigation/，我们必须使用：

ActionBar toolbar = getSupportActionBar();
toolbar.setTitle("Home");

但是我知道这不起作用... 预先感谢