flutter Firestore数据检查并导航到新屏幕

dependencies:
  cloud_firestore: ^2.5.3

import 'package:cloud_firestore/cloud_firestore.dart';

void listenToDataChanges() {
  FirebaseFirestore.instance
      .collection('collectionName')
      .doc('documentId')
      .snapshots()
      .listen((DocumentSnapshot snapshot) {
    // 在这里处理数据变化的逻辑
    // 可以根据数据的变化进行相应的操作，比如导航到新屏幕
    // 使用Navigator.push()方法将新的屏幕推入导航栈中
  });
}

import 'package:flutter/material.dart';

void navigateToNewScreen(BuildContext context) {
  Navigator.push(
    context,
    MaterialPageRoute(builder: (context) => NewScreen()),
  );
}

class NewScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('New Screen'),
      ),
      body: Center(
        child: Text('This is a new screen.'),
      ),
    );
  }
}