如何从Firebase获取孩子的名字到listview Android？

dependencies {
    // 其他依赖...
    implementation 'com.google.firebase:firebase-database:20.0.0'
}

public class ChildrenAdapter extends BaseAdapter {
    private List<String> childrenNames;
    private Context context;

    public ChildrenAdapter(List<String> childrenNames, Context context) {
        this.childrenNames = childrenNames;
        this.context = context;
    }

    @Override
    public int getCount() {
        return childrenNames.size();
    }

    @Override
    public Object getItem(int position) {
        return childrenNames.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(android.R.layout.simple_list_item_1, parent, false);
        }

        TextView textView = convertView.findViewById(android.R.id.text1);
        textView.setText(childrenNames.get(position));

        return convertView;
    }
}

public class MainActivity extends AppCompatActivity {
    private ListView listView;
    private DatabaseReference databaseReference;

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

        listView = findViewById(R.id.listView);

        // 初始化Firebase
        FirebaseApp.initializeApp(this);
        databaseReference = FirebaseDatabase.getInstance().getReference("children");

        // 从Firebase数据库中获取孩子的名字数据
        databaseReference.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                List<String> childrenNames = new ArrayList<>();
                for (DataSnapshot childSnapshot : dataSnapshot.getChildren()) {
                    String childName = childSnapshot.getValue(String.class);
                    childrenNames.add(childName);
                }

                // 将孩子的名字数据绑定到ListView上
                ChildrenAdapter adapter = new ChildrenAdapter(childrenNames, MainActivity.this);
                listView.setAdapter(adapter);
            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError) {
                // 处理取消操作的逻辑
            }
        });
    }
}