Describe the bug Latest 4.1.2 in pub.dev analysis is showing the SpringDescription cannot be definded. I have tested on my local env with example project have not problem with it and running flutter analyze but show nothing. Since it only show the first 2 issues on pub.dev only, I can only wait for their update on the flutter analyze to get further information. If you get any further information about this issue, please feel free to leave it here to let everyone notice. Thank you!

Platform All

demo

code

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:horizontal_data_table/horizontal_data_table.dart';
import 'package:horizontal_data_table/refresh/pull_to_refresh/src/smart_refresher.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);
  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  HDTRefreshController _hdtRefreshController = HDTRefreshController();

  static const int sortName = 0;
  static const int sortStatus = 1;
  bool isAscending = true;
  int sortType = sortName;

  @override
  void initState() {
    user.initData(20);
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: _getBodyWidget(),
    );
  }

  Widget _getBodyWidget() {
    return Container(
      child: HorizontalDataTable(
        leftHandSideColumnWidth: 100,
        rightHandSideColumnWidth: 600,
        isFixedHeader: true,
        headerWidgets: _getTitleWidget(),
        leftSideItemBuilder: _generateFirstColumnRow,
        rightSideItemBuilder: _generateRightHandSideColumnRow,
        itemCount: user.userInfo.length,
        rowSeparatorWidget: const Divider(
          color: Colors.black54,
          height: 1.0,
          thickness: 0.0,
        ),
        leftHandSideColBackgroundColor: Color(0xFFFFFFFF),
        rightHandSideColBackgroundColor: Color(0xFFFFFFFF),
        verticalScrollbarStyle: const ScrollbarStyle(
          thumbColor: Colors.yellow,
          isAlwaysShown: true,
          thickness: 0.0,
          radius: Radius.circular(5.0),
        ),
        horizontalScrollbarStyle: const ScrollbarStyle(
          thumbColor: Colors.red,
          isAlwaysShown: true,
          thickness: 0.0,
          radius: Radius.circular(5.0),
        ),
        enablePullToRefresh: true,
        refreshIndicator:
            /*
        const WaterDropHeader(),
        */
            CustomHeader(
          builder: (context, mode) {
            Widget body = Text("");
            if (mode == RefreshStatus.idle) {
              body = Text("pull down refresh");
            } else if (mode == RefreshStatus.refreshing) {
              body = CupertinoActivityIndicator();
            } else if (mode == RefreshStatus.canRefresh) {
              body = Text("release to refresh");
            } else if (mode == RefreshStatus.completed) {
              body = Text("refreshCompleted!");
            }
            return Container(
              height: 60.0,
              child: Center(
                child: body,
              ),
            );
          },
        ),
        refreshIndicatorHeight: 60,
        onRefresh: () async {
          //Do sth
          await Future.delayed(const Duration(milliseconds: 500));
          _hdtRefreshController.refreshCompleted();
        },
        htdRefreshController: _hdtRefreshController,
      ),
      height: MediaQuery.of(context).size.height,
    );
  }

  List<Widget> _getTitleWidget() {
    return [
      TextButton(
        style: TextButton.styleFrom(
          padding: EdgeInsets.zero,
        ),
        child: _getTitleItemWidget(
            'Name' + (sortType == sortName ? (isAscending ? '↓' : '↑') : ''),
            100),
        onPressed: () {
          sortType = sortName;
          isAscending = !isAscending;
          user.sortName(isAscending);
          setState(() {});
        },
      ),
      TextButton(
        style: TextButton.styleFrom(
          padding: EdgeInsets.zero,
        ),
        child: _getTitleItemWidget(
            'Status' +
                (sortType == sortStatus ? (isAscending ? '↓' : '↑') : ''),
            100),
        onPressed: () {
          sortType = sortStatus;
          isAscending = !isAscending;
          user.sortStatus(isAscending);
          setState(() {});
        },
      ),
      _getTitleItemWidget('Phone', 200),
      _getTitleItemWidget('Register', 100),
      _getTitleItemWidget('Termination', 200),
    ];
  }

  Widget _getTitleItemWidget(String label, double width) {
    return Container(
      child: Text(label, style: TextStyle(fontWeight: FontWeight.bold)),
      width: width,
      height: 56,
      padding: EdgeInsets.fromLTRB(5, 0, 0, 0),
      alignment: Alignment.centerLeft,
    );
  }

  Widget _generateFirstColumnRow(BuildContext context, int index) {
    return Container(
      child: Text(user.userInfo[index].name),
      width: 100,
      height: 52,
      padding: EdgeInsets.fromLTRB(5, 0, 0, 0),
      alignment: Alignment.centerLeft,
    );
  }

  Widget _generateRightHandSideColumnRow(BuildContext context, int index) {
    return Row(
      children: <Widget>[
        Container(
          child: Row(
            children: <Widget>[
              Icon(
                  user.userInfo[index].status
                      ? Icons.notifications_off
                      : Icons.notifications_active,
                  color:
                      user.userInfo[index].status ? Colors.red : Colors.green),
              Text(user.userInfo[index].status ? 'Disabled' : 'Active')
            ],
          ),
          width: 100,
          height: 52,
          padding: EdgeInsets.fromLTRB(5, 0, 0, 0),
          alignment: Alignment.centerLeft,
        ),
        Container(
          child: Text(user.userInfo[index].phone),
          width: 200,
          height: 52,
          padding: EdgeInsets.fromLTRB(5, 0, 0, 0),
          alignment: Alignment.centerLeft,
        ),
        Container(
          child: Text(user.userInfo[index].registerDate),
          width: 100,
          height: 52,
          padding: EdgeInsets.fromLTRB(5, 0, 0, 0),
          alignment: Alignment.centerLeft,
        ),
        Container(
          child: Text(user.userInfo[index].terminationDate),
          width: 200,
          height: 52,
          padding: EdgeInsets.fromLTRB(5, 0, 0, 0),
          alignment: Alignment.centerLeft,
        ),
      ],
    );
  }
}

User user = User();

class User {
  List<UserInfo> userInfo = [];

  void initData(int size) {
    for (int i = 0; i < size; i++) {
      userInfo.add(UserInfo(
          "User_$i", i % 3 == 0, '+001 9999 9999', '2019-01-01', 'N/A'));
    }
  }

  ///
  /// Single sort, sort Name's id
  void sortName(bool isAscending) {
    userInfo.sort((a, b) {
      int aId = int.tryParse(a.name.replaceFirst('User_', '')) ?? 0;
      int bId = int.tryParse(b.name.replaceFirst('User_', '')) ?? 0;
      return (aId - bId) * (isAscending ? 1 : -1);
    });
  }

  ///
  /// sort with Status and Name as the 2nd Sort
  void sortStatus(bool isAscending) {
    userInfo.sort((a, b) {
      if (a.status == b.status) {
        int aId = int.tryParse(a.name.replaceFirst('User_', '')) ?? 0;
        int bId = int.tryParse(b.name.replaceFirst('User_', '')) ?? 0;
        return (aId - bId);
      } else if (a.status) {
        return isAscending ? 1 : -1;
      } else {
        return isAscending ? -1 : 1;
      }
    });
  }
}

class UserInfo {
  String name;
  bool status;
  String phone;
  String registerDate;
  String terminationDate;

  UserInfo(this.name, this.status, this.phone, this.registerDate,
      this.terminationDate);
}

Describe the bug Description of what the bug is.

../flutter/.pub-cache/hosted/pub.dartlang.org/horizontal_data_table-4.1.1+1/lib/refresh/pull_to_refresh/src/smart_refresher.dart:412:24: Error: A value of type 'bool?' can't be assigned to a variable of type 'bool' because 'bool?' is nullable and 'bool' isn't. (childView.primary ? PrimaryScrollController.of(context) : null);

Flutter 3.1.0-0.0.pre.1376 • channel master • https://github.com/flutter/flutter.git Framework • revision 3598f20002 (9 days ago) • 2022-06-26 18:19:04 -0400 Engine • revision ee56813c14 Tools • Dart 2.18.0 (build 2.18.0-228.0.dev) • DevTools 2.14.1

Platform Please describe the affected platfrom(eg. IOS, Android, Web, Window, Mac, Linux)

Screen Captures or Debug Log If applicable, add screenshots or debug log to help explain your problem.

Additional context Add any other context about the problem here.

Hey :) after starting my app in flutter-debug-mode after a while, this error appears:

/C:/Users/AppData/Local/flutter/.pub-cache/hosted/pub.dartlang.org/horizontal_data_table-4.1.2+2/lib/refresh/pull_to_refresh/src/smart_refresher.dart(828,9): error G5FE39F1E: Type 'SpringDescription' not found. [D:\software\build\windows\flutter\flutter_assemble.vcxproj] /C:/Users/AppData/Local/flutter/.pub-cache/hosted/pub.dartlang.org/horizontal_data_table-4.1.2+2/lib/refresh/pull_to_refresh/src/smart_refresher.dart(946,5): error G5FE39F1E: Type 'SpringDescription' not found. [D:\software\build\windows\flutter\flutter_assemble.vcxproj] /C:/Users/AppData/Local/flutter/.pub-cache/hosted/pub.dartlang.org/horizontal_data_table-4.1.2+2/lib/refresh/pull_to_refresh/src/internals/refresh_physics.dart(28,9): error G5FE39F1E: Type 'SpringDescription' not found. [D:\software\build\windows\flutter\flutter_assemble.vcxproj] /C:/Users/AppData/Local/flutter/.pub-cache/hosted/pub.dartlang.org/horizontal_data_table-4.1.2+2/lib/refresh/pull_to_refresh/src/smart_refresher.dart(903,37): error GF7CA4DBF: Couldn't find constructor 'SpringDescription'. [D:\software\build\windows\flutter\flutter_assemble.vcxproj] /C:/Users/AppData/Local/flutter/.pub-cache/hosted/pub.dartlang.org/horizontal_data_table-4.1.2+2/lib/refresh/pull_to_refresh/src/smart_refresher.dart(347,23): error GF7CA4DBF: Couldn't find constructor 'SpringDescription'. [D:\software\build\windows\flutter\flutter_assemble.vcxproj] /C:/Users/AppData/Local/flutter/.pub-cache/hosted/pub.dartlang.org/horizontal_data_table-4.1.2+2/lib/refresh/pull_to_refresh/src/smart_refresher.dart(828,9): error G104F1F23: 'SpringDescription' isn't a type. [D:\software\build\windows\flutter\flutter_assemble.vcxproj] /C:/Users/AppData/Local/flutter/.pub-cache/hosted/pub.dartlang.org/horizontal_data_table-4.1.2+2/lib/refresh/pull_to_refresh/src/smart_refresher.dart(946,5): error G104F1F23: 'SpringDescription' isn't a type. [D:\software\build\windows\flutter\flutter_assemble.vcxproj] /C:/Users/AppData/Local/flutter/.pub-cache/hosted/pub.dartlang.org/horizontal_data_table-4.1.2+2/lib/refresh/pull_to_refresh/src/internals/refresh_physics.dart(28,9): error G104F1F23: 'SpringDescription' isn't a type. [D:\software\build\windows\flutter\flutter_assemble.vcxproj]

Do you know, how to handle this error?

Describe the Problem Can't change the background color of the vertical scrolling.

Using the default bouncing physics, a white background appears when you scroll too far up or down. Is there any way to change this to a different color? I have a dark UI and the white looks awful when you scroll past, yet I would like to keep the bouncing physics.

Describe the Problem Please tell me about the setting of "scrollPhysics". "BouncingScrollPhysics" is set in "scrollPhysics". However, when scrolling the line, the positions of "leftSideItemBuilder" and "rightSideItemBuilder" are misaligned. "RightSideItemBuilder" returns to its initial position while scrolling "leftSideItemBuilder". Is there a way to link "leftSideItemBuilder" and "rightSideItemBuilder"?

[1.Initial position]

[2.Scrolling]

[3.Stop scrolling]

Hi I try to workaround with the example in Readme. And I got error'isAlwaysShown' was called on null. As you can see in below image.

I use Mac with below version:

• Flutter 1.22.6 • channel stable
• Dart 2.10.5

Are there any problems with the keyboard scrolling to the top when it is activated?

HorizontalDataTable(
    // Expected behavior in previous versions
    // verticalScrollController: ref.read(appProvider.notifier).scrollController,

    // If I modify it this way, it scrolls to the top every time I open the keyboard
    onScrollControllerReady: (vertical, _) {
      ref.read(appProvider.notifier).scrollController = vertical;
    },
);

Describe the bug I am using horizontal_data_table: ^ 3.5.0. I am quite confused because I have not get to remove an Extra Padding that is putting the Widget just before displaying the Header (see Graph 1). A proof that this extra padding is specifically due to Horizontal_Data_Table, is that if I change this function to a simple text that says 'Hello' that padding stops appearing. How can I remove this padding?

ExtraPadding - Graph 1

The code I am using in Horizontal Data Table is as follows:

StreamBuilder(
        stream: estanquesBloc.estanqueLoteStream,
        builder: (BuildContext context, AsyncSnapshot<List<LoteModel>> snapshot){
          if (snapshot.hasData) {
            loteList = snapshot.data;
            if (loteList!.isEmpty) return _imagenInicial(context);
            return HorizontalDataTable(
              leftHandSideColumnWidth: _size.width*(0.13+0.045), 
              rightHandSideColumnWidth: _size.width*(0.1*7+0.15),
              isFixedHeader: true,
              headerWidgets: _titulos(),
              leftSideItemBuilder: (context, i) =>_crearItemsPrimeraColumna(context, loteList![i]),
              rightSideItemBuilder: (context, i) =>_crearItemsSiguientesColumnas(context, loteList![i]),
              itemCount: loteList!.length,
              rowSeparatorWidget: Container(
                height: 10.0,
                color: Colors.grey[200],
              ),
              htdRefreshController: _hdtRefreshController,
            );
          } else if (snapshot.hasError) {
            return Text(snapshot.error.toString());
          } 
            return const Center (child: Image(image: AssetImage('assets/Aplians-fish-Preloader.gif'), height: 100.0,));
        }
    );

If I change HorizontalDataTable by a Hello Text the result is as follows:

No Extra Padding - Graph 2

The code to demonstrate that the Padding is due to HorizontalDataTable Widget is as follows:

StreamBuilder(
        stream: estanquesBloc.estanqueLoteStream,
        builder: (BuildContext context, AsyncSnapshot<List<LoteModel>> snapshot){
          if (snapshot.hasData) {
            loteList = snapshot.data;
            if (loteList!.isEmpty) return _imagenInicial(context);
            return Text('Hello');
          } else if (snapshot.hasError) {
            return Text(snapshot.error.toString());
          } 
            return const Center (child: Image(image: AssetImage('assets/Aplians-fish-Preloader.gif'), height: 100.0,));
        }
    );

Platform I'm testing on IOS and Android

Screen Captures or Debug Log It was included

Additional context It was included

On flutter web if the right side scrollbar will only show if the user scrolls all the way to the right side. If both the width and height dimensions are offscreen. This fix will always show both scrollbars on screen.

To reproduce:

1. Make a table with data that is too big for the screen both width and height
2. Scroll the height of the table noticed the vertical scroll bar doesn't show.
3. To see the vertical scroll bar scroll all the way to the right

 return Container(
      height: ((contentList.length + 1) * 46).toDouble(),
      padding: EdgeInsets.zero,
      child: HorizontalDataTable(
        leftHandSideColumnWidth: 100,
        rightHandSideColumnWidth: ((titleList.length - 1) * 100).toDouble(),
        isFixedHeader: true,
        headerWidgets: _getTitleWidget(titleList),
        leftSideItemBuilder: _generateFirstColumnRow,
        rightSideItemBuilder: _generateRightSideColumnRow,
        itemCount: contentList.length,
        rowSeparatorWidget: const Divider(
          color: Colors.transparent,
          height: 0.0,
          thickness: 0.0,
        ),
        leftHandSideColBackgroundColor: Colors.white,
        rightHandSideColBackgroundColor: Colors.white,
        enablePullToRefresh: false,
      ),
    );

Describe the Feature A small icon or button that will let the user download a csv file of the data displayed by the view.

Describe the Solution Not really sure how to go about it.

At some point in my app I recall the request -that builds the table columns and rows- with extra parameters so the table will have more width, the app works fine even with the exception but I hope to solve it.

Important note : I'm trying to recall the request automatically after editing the sent parameters, if I change the parameters then recalled the request manually not automatically the exception won't be thrown!

Exception : **The following assertion was thrown during a scheduler callback: The Scrollbar's ScrollController has no ScrollPosition attached.

A Scrollbar cannot be painted without a ScrollPosition.

The Scrollbar attempted to use the provided ScrollController. This ScrollController should be associated with the ScrollView that the Scrollbar is being applied to. When providing your own ScrollController, ensure both the Scrollbar and the Scrollable widget use the same one.**

Right now, the line showing the first column is frozen/sticky only appears when you scroll horizontally. Two questions.

1. Is there a way to always have that line appear?
2. Is there a way to customize (size and/or color) of this line?

We have screen where multiple types of widgets are shown like table, pie chart, bar chart etc. All these widgets are added in ListView. Problem is that when i scroll inside table and reached to top or bottom then scroll in listview is not worked. I have to scroll outside of table to get scroll in ListView worked. Any solution for this? I have attached use case below.