I have one page as the first page with TabbarViews, the TabbarViews show some datas which were got form website, so when I finish sent some datas in the second page, the datas in TabbarViews also change. I need to get new datas in TabbarViews. The first page looks like,

import 'firstFloorView.dart';

class FirstFloorPage extends StatefulWidget {
  final String number;
  const FirstFloorPage({
    Key? key,
    required this.number,
  }) : super(key: key);

  @override
  _FirstFloorPageState createState() => _FirstFloorPageState();
}

class _FirstFloorPageState extends State<FirstFloorPage> with SingleTickerProviderStateMixin {

  /// tabbar
  late TabController _tabController;

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    _tabController = TabController(length: 2, vsync: this, initialIndex: 0);
    _tabController.addListener(() {});
  }

  @override
  void dispose() {
    _tabController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("First page"),
        actions: [
          RaisedButton(
            child: Text("Go to Second Page"),
            onPressed: (){
              Navigator.push(
                context,
                MaterialPageRoute(
                    builder: (context) => SecondPage(),
                ),
              );
            },
          ),
        ],
      ),
        body: Stack(
          children: [
            Column(
              children: [
                Container(
                  child: TabBar(
                    tabs: [
                      Tab(text: "view1",),
                      Tab(text: "view2",),
                    ],
                    controller: _tabController,
                  ),
                ),
                Divider(color: Colors.grey,height: 0,thickness: 1,),
                Expanded(child: TabBarView(
                  controller: _tabController,
                  children: [
                    FloorView(str:"1"),
                    FloorView(str:"2"),
                  ],
                ),)
              ],
            ),
          ],
        )
    );
  }
}

And my TabbarView is this:

class FloorView extends StatefulWidget {
  const FloorView({
    Key? key,
    required this.str
  }) : super(key: key);
  final String str;

  @override
  _FloorViewState createState() => _FloorViewState();
}

class _FloorViewState extends State<FloorView> {

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    print(widget.str);
  }

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Text("${widget.str}"),
    );
  }
}

The second page is:

import 'package:flutter/material.dart';

class SecondPage extends StatefulWidget {
  const SecondPage ({Key? key}) : super(key: key);

  @override
  _SecondPageState createState() => _SecondPageState();
}

class _SecondPageState extends State<SecondPage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Second Page"),
      ),
      body: Center(
        child: RaisedButton(
          child: Text("Pop back to First Page"),
          onPressed: (){
            Navigator.pop(context);
          },
        ),
      ),
    );
  }
}

Now I want to refresh all datas of first page(with all datas in Tabbarviews) when I pop from the second page. How to make it? Maybe, I need to rebuild the first page?

CodePudding user response：

I'd recommend using a State Management package like