flutter_provider_demo/lib/pages/home_page.dart

import 'package:flutter/material.dart';
import 'package:flutter_provider_demo/pages/addpage_page.dart';
import 'package:flutter_provider_demo/provider/car_provider.dart';
import 'package:flutter_provider_demo/views/all_cars.dart';
import 'package:flutter_provider_demo/views/ready_cars.dart';
import 'package:flutter_provider_demo/views/unready_cars.dart';
import 'package:provider/provider.dart';

/// Description: home page
/// Time       : 09/03/2023 Sunday
/// Author     : liuyuqi.gov@msn.cn
class HomePage extends StatefulWidget {
  const HomePage({super.key});
  static bool hasData = false;

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage>
    with SingleTickerProviderStateMixin {
  late TabController tabController;

  @override
  void initState() {
    super.initState();
    tabController = TabController(length: 3, vsync: this);
  }

  @override
  Widget build(BuildContext context) {
    Provider.of<CarProvider>(context).getCars();

    if (Provider.of<CarProvider>(context).count > 0) {
      HomePage.hasData = true;
    }

    return Scaffold(
      appBar: AppBar(
        title: const Text('Your Cars'),
        actions: <Widget>[
          IconButton(
            icon: const Icon(Icons.add),
            onPressed: () {
              Navigator.of(context).push(
                  MaterialPageRoute(builder: (context) => const AddcardPage()));
            },
          ),
        ],
        bottom: TabBar(
          controller: tabController,
          tabs: const <Widget>[
            Tab(text: 'UnReady'),
            Tab(text: 'All'),
            Tab(text: 'Ready'),
          ],
        ),
      ),
      body: Provider.of<CarProvider>(context).count > 0
          ? TabBarView(
              controller: tabController,
              children: const <Widget>[
                AllCarsTab(),
                UnReadyCarsTab(),
                ReadyCarsTab()
              ],
            )
          : const Center(
              child: Text(
                '',
                style: TextStyle(fontSize: 20.0),
              ),
            ),
    );
  }
}