In this blog, we will explore the Modal Bottom Sheet Widget In Flutter. We will also implement a demo of the Modal Bottom Sheet Widget, and describes its properties. and how to use them in your flutter applications.

Table Of Contents::

Flutter

Modal Bottom Sheet

Code Implement

Code File

Conclusion

Flutter :

“ Flutter is Google’s UI toolkit that helps you build beautiful and natively combined applications for mobile, web, and desktop in a single codebase in record time It means that you can use one programming language and one codebase to create two different apps (for iOS and Android)”.

Modal Bottom Sheet :

The bottom sheet material is a very good component given by design. It is like a dialog that is open from the bottom. We use the sheet below when we have to show some options for the user to proceed. And here you can use any widget as per your requirement.

Two Required Properties of the Modal Bottom Sheet :

BuildContext: The build context for a particular widget can change the location over time. Because it helps the creation method to determine which widget it is going to pull and it also helps in determining the position of the widget to be pulled in the widget tree.

WidgetBuilder: The builder widget needs to pass a widget, but only has a function that returns the widget.

Some Optional Properties of the Modal Bottom Sheet :

1. shape: Using shape properties, we can give a circular border and color of the border according to our own.
2. background: Using shape properties, we can give a circular border and color of the border according to our own.
3. elevation: The elevation property is used to raise the shadow of the bottom sheet and it is an optional property.

Demo Module :

Code Implementation :

Create a new dart file called modal_bottom_sheet.dart inside the lib folder.

First of all, we will create one button on the modal bottom sheet page screen. And we will open the sheet at the click.

Now, at the click of a button, we will show the bottom sheet in which the column has been taken inside the bottom sheet and used the List Tile widget inside the column widget, in which some images and titles are displayed.

Let us understand this with the help of a reference.

showModalBottomSheet(
    context: context,
    builder: (context) {
      return Column(
        mainAxisSize: MainAxisSize.min,
        children: <Widget>[
          ListTile(
            leading: new Icon(Icons.photo),
            title: new Text('Photo'),
            onTap: () {
              Navigator.pop(context);
            },
          ),
          ListTile(
            leading: new Icon(Icons.music_note),
            title: new Text('Music'),
            onTap: () {
              Navigator.pop(context);
            },
          ),
          ListTile(
            leading: new Icon(Icons.videocam),
            title: new Text('Video'),
            onTap: () {
              Navigator.pop(context);
            },
          ),
          ListTile(
            leading: new Icon(Icons.share),
            title: new Text('Share'),
            onTap: () {
              Navigator.pop(context);
            },
          ),
        ],
      );
    });

When we run the application, we ought to get the screen’s output like the underneath screen capture.

Code File:

import 'package:flutter/material.dart';

class ModalBottomSheet extends StatefulWidget {
  @override
  _ModalBottomSheetState createState() => _ModalBottomSheetState();
}

class _ModalBottomSheetState extends State<ModalBottomSheet> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(
          'Modal Bottom Sheet',
          style: TextStyle(color: Colors.white),
        ),
        centerTitle: true,
      ),
      body: Container(
        alignment: Alignment.center,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(
              "MODAL BOTTOM SHEET EXAMPLE",
              style: TextStyle(
                  fontStyle: FontStyle.italic,
                  letterSpacing: 0.4,
                  fontWeight: FontWeight.w600),
            ),
            SizedBox(
              height: 20,
            ),
            RaisedButton(
              shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.all(Radius.circular(10.0))),
              onPressed: () {
                showModalBottomSheet(
                    context: context,
                    builder: (context) {
                      return Column(
                        mainAxisSize: MainAxisSize.min,
                        children: <Widget>[
                          ListTile(
                            leading: new Icon(Icons.photo),
                            title: new Text('Photo'),
                            onTap: () {
                              Navigator.pop(context);
                            },
                          ),
                          ListTile(
                            leading: new Icon(Icons.music_note),
                            title: new Text('Music'),
                            onTap: () {
                              Navigator.pop(context);
                            },
                          ),
                          ListTile(
                            leading: new Icon(Icons.videocam),
                            title: new Text('Video'),
                            onTap: () {
                              Navigator.pop(context);
                            },
                          ),
                          ListTile(
                            leading: new Icon(Icons.share),
                            title: new Text('Share'),
                            onTap: () {
                              Navigator.pop(context);
                            },
                          ),
                        ],
                      );
                    });
              },
              padding:
                  EdgeInsets.only(left: 30, right: 30, top: 15, bottom: 15),
              color: Colors.pink,
              child: Text(
                'Click Me',
                style: TextStyle(
                    color: Colors.white,
                    fontWeight: FontWeight.w600,
                    letterSpacing: 0.6),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

Conclusion:

In this article, I have explained a Modal Bottom Sheet demo, which you can modify and experiment with according to your own. This little introduction was from the Modal Bottom Sheet widget from our side.

I hope this blog will provide you with sufficient information in Trying up the Modal Bottom Sheet widget in your flutter project. We will show you the Modal Bottom Sheet is?, and working on it in your flutter applications, So please try it.

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

If we got something wrong? Let me know in the comments. we would love to improve.

❤ ❤ Thanks for reading this article ❤❤

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

Hello friends, I will talk about my new blog on Expansion Tile Widget In Flutter. We will also implement a demo of the Expansion Tile Widget, and describes its properties, and how to use them in your flutter applications. So let’s get started.

Table of Contents :

Flutter

Expansion Tile Widget

Code Implementation

Code File

Conclusion

Flutter :

“ Flutter is Google’s UI toolkit that helps you build beautiful and natively combined applications for mobile, web, and desktop in a single codebase in record time ,Flutter offers great developer tools, with amazing hot reload”

Expansions Tile Widget :

The expansion tile widget is a very useful widget. This widget lets you create a detailed tile that can be used as part of a list view. We need to show some detailed information on the list for many applications, but for this, we do not have enough space to expand and collapse the list. Then we can create it with the extension tile widget.

Following Some Properties of the Expansions Tile :

• title — The Title property allows you to choose the title for the expansion tile widget. This will be an item that will always be visible to the user.
• children — The children’s property holds any number of widgets. It can be a card for a simple text. And the extension tiles will know this only by clicking on the title of the widget.
• leading — The leading property is used on the first left side of the title, just as the leading list tile widget uses leading, similarly this feature works here.
• trailing — Use the trailing property to the right after the title, you can use text and icons in this property.
• backgroundColor — Using the background property gives color to the background of the expanded tile. Note, it assigns a color to the extended tile, not the title.

Demo Module :

In this screen, we will create a list with the help of a list view builder in which the expansion tile widget will be used and initialize the list data into the

Code Implementation :

You need to implement it in your code respectively:

Create a new dart file called expansion_title_demo.dart inside the libfolder.

In this screen, we will create a list with the help of a list view builder in which the expansion tile widget will be used and initialize the list data into the expansion tile widget. Let’s understand it with the help of a reference.

ExpansionTile(
  title: Text(
    items.playerName,
    style: TextStyle(fontSize: 16.0, fontWeight: FontWeight.w500),
  ),
  children: <Widget>[
    ListTile(
      title: Text(
        items.description,
        style: TextStyle(fontWeight: FontWeight.w700),
      ),
    )
  ],
),

When we run the application, we ought to get the screen’s output like the underneath screen capture.

Code File:

import 'package:flutter/material.dart';
import 'package:flutter_expansion_tile_demo/Constants/Constants.dart';
import 'package:flutter_expansion_tile_demo/model/month_model.dart';

class ExpansionTileDemo extends StatefulWidget {
  @override
  _ExpansionTileDemoState createState() => _ExpansionTileDemoState();
}

class _ExpansionTileDemoState extends State<ExpansionTileDemo> {
  List<MonthModel> monthModel;

  @override
  void initState() {
    monthModel = Constants.getMonthModel();
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        centerTitle: true,
        title: Text('Expansion Tile Demo'),
      ),
      body: Padding(
        padding: const EdgeInsets.symmetric(horizontal: 0.0),
        child: ListView.builder(
          scrollDirection: Axis.vertical,
          shrinkWrap: true,
          physics: BouncingScrollPhysics(),
          itemCount: monthModel.length,
          itemBuilder: (BuildContext context, int index) {
            return _buildPlayerModelList(monthModel[index]);
          },
        ),
      ),
    );
  }

  Widget _buildPlayerModelList(MonthModel items) {
    return Card(
      child: ExpansionTile(
        title: Text(
          items.playerName,
          style: TextStyle(fontSize: 16.0, fontWeight: FontWeight.w500),
        ),
        children: <Widget>[
          ListTile(
            title: Text(
              items.description,
              style: TextStyle(fontWeight: FontWeight.w700),
            ),
          )
        ],
      ),
    );
  }
}

Conclusion:

In this article, I have explained an Expansion Tile in a flutter, which you can modify and experiment with according to your own, this little introduction was from the Expansion Tile demo from our side.

I hope this blog will provide you with sufficient information in Trying up the Expansion Tile in your flutter project. We showed you what the Expansion Tile is and work on it in your flutter applications, So please try it.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter-related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

The flutter widget is built using a modern framework. It is like a reaction. In this, we start with the widget to create any application. Each component in the screen is a widget. The widget describes what his outlook should be given his present configuration and condition. Widget shows were similar to its idea and current setup and state. Flutter is a free and open-source tool to develop mobile, desktop, web applications with a single code base.

In this blog, we will explore the Vertical Card Pager In Flutter. We will also implement a demo of the Vertical Card Pager, and describes its properties. and how to use them in your flutter applications. So let’s get started.

Table of Contents :

Vertical Card Pager

Implementation

Code Implementation

Code File

Conclusion

Vertical Card Pager :

A vertical card pager displays an animated card list in the application by scrolling vertically. It is a very beautiful and dynamic card view pager. We can define the card pager list differently. Let us understand in detail about its properties

vertical_card_pager | Flutter Package
Add this to your package’s pubspec.yaml file: dependencies: vertical_card_pager: ^1.4.0 You can install packages from…pub.dev

The following are the basic properties of the Vertical Card Pager.

1. titles: The title property is used to display some of its details in the card, it is a type of list.
2. align: You can use the align property to arrange the list item, according to it according to left, centre and right.
3. images: We use the images property to display the image in the list item, it is a type of list.
4. textStyle: Using the text style property, we can reduce the size of the text of the title and change the color of the text.

Demo Module :

Implementation :

You need to implement it in your code respectively :

Step 1: Add dependencies.

Add dependencies to pubspec — yaml file.

dependencies:
vertical_card_pager: ^1.4.0

Step 2: import the package :

import 'package:vertical_card_pager/vertical_card_pager.dart';

Step 3: Run flutter package get

How to implement code in dart file :

Create a new dart file called vertical_card_pager_demo.dart inside the lib folder.

First of all, we have created a list of the titles in which we have named the tiles.

final List<String> titles = [
  "RED",
  "YELLOW",
  "CYAN",
  "BLUE",
  "GREY",
];

Before using this widget, an image variable has been defined which is list type. In this, we have given the color of the items which have been defined in the images property.

final List<Widget> images = [
  Container(
    decoration: BoxDecoration(
      color: Colors.red,
      borderRadius: BorderRadius.all(Radius.circular(10)),
    ),
  ),
  Container(
    decoration: BoxDecoration(
      color: Colors.yellow,
      borderRadius: BorderRadius.all(Radius.circular(10)),
    ),
  ),
  Container(
    decoration: BoxDecoration(
      color: Colors.cyan,
      borderRadius: BorderRadius.all(Radius.circular(10)),
    ),
  ),
  Container(
    decoration: BoxDecoration(
      color: Colors.blue,
      borderRadius: BorderRadius.all(Radius.circular(10)),
    ),
  ),
  Container(
    decoration: BoxDecoration(
      color: Colors.grey,
      borderRadius: BorderRadius.all(Radius.circular(10)),
    ),
  ),
];

Before using this widget, we have created a container inside which uses the vertical card widget, in this, we have given the color of the item which is of list type in its titles and image properties and centre the list item.

These are snapshots image after running the app.

Code File :

import 'package:flutter/material.dart';
import 'package:vertical_card_pager/vertical_card_pager.dart';

class VerticalCardPagerDemo extends StatefulWidget {
  @override
  _VerticalCardPagerDemoState createState() => _VerticalCardPagerDemoState();
}

class _VerticalCardPagerDemoState extends State<VerticalCardPagerDemo> {
  final List<String> titles = [
    "RED",
    "YELLOW",
    "CYAN",
    "BLUE",
    "GREY",
  ];

  @override
  Widget build(BuildContext context) {
    final List<Widget> images = [
      Container(
        decoration: BoxDecoration(
          color: Colors.red,
          borderRadius: BorderRadius.all(Radius.circular(10)),
        ),
      ),
      Container(
        decoration: BoxDecoration(
          color: Colors.yellow,
          borderRadius: BorderRadius.all(Radius.circular(10)),
        ),
      ),
      Container(
        decoration: BoxDecoration(
          color: Colors.cyan,
          borderRadius: BorderRadius.all(Radius.circular(10)),
        ),
      ),
      Container(
        decoration: BoxDecoration(
          color: Colors.blue,
          borderRadius: BorderRadius.all(Radius.circular(10)),
        ),
      ),
      Container(
        decoration: BoxDecoration(
          color: Colors.grey,
          borderRadius: BorderRadius.all(Radius.circular(10)),
        ),
      ),
    ];
    return Scaffold(
      appBar: AppBar(
        title: Text(
          'Vertical Card Pager',
          style: TextStyle(color: Colors.white),
        ),
        centerTitle: true,
      ),
      body: SafeArea(
        child: Expanded(
          child: Container(
            child: VerticalCardPager(
              textStyle:
                  TextStyle(color: Colors.white, fontWeight: FontWeight.bold),
              titles: titles,
              images: images,
              onPageChanged: (page) {},
              align: ALIGN.CENTER,
              onSelectedItem: (index) {},
            ),
          ),
        ),
      ),
    );
  }
}

Conclusion :

In the article, I have explained the basic structure of Vertical Card Pager in a flutter; you can modify this code according to your choice. This was a small introduction to Vertical Card Pager On User Interaction from my side, and it’s working using Flutter.

I hope this blog will provide you with sufficient information in Trying up the Vertical Card Pager in your flutter project. We will show you the Vertical Card Pager is?, and work on it in your flutter applications, So please try it.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

Flutter has made it quite easy to develop complex UIs for developers. Pulsation automated testing empowers you to meet high responsiveness in your application as it helps in discovering bugs and various issues in your application. Pulsation is a tool for developing mobile, desktop, web applications with a code & is a free and open-source tool.

In this blog, we will explore the Layout Builder In Flutter. We will also implement a demo of the Layout Builder. and how to use them in your flutter applications. So let’s get started.

Table of Contents :

Flutter

Layout Builder

Code Implementation

Code File

Conclusion

Flutter :

“ Flutter is Google’s UI toolkit that helps you build beautiful and natively combined applications for mobile, web, and desktop in a single codebase in record time ,Flutter offers great developer tools, with amazing hot reload”

Layout Builder :

LayoutBuilder helps to create a widget tree in the widget flutter which can depend on the size of the original widget. flutter can take the layout builder as a parameter. It has two parameters. build context and Boxconstrant. BuildContext refers to a widget. But box constraint is more important, it gives the width to the parent widget which is used to manage the child according to the size of the parent.

Note: The main difference between Media Query and LayoutBuilder is that Media Query uses the full context of the screen instead of the size of your particular widget. While the layout builder can determine the maximum width and height of any widget.

Demo Module :

Code Implementation :

You need to implement it in your code respectively:

Create a new dart file called layout_builder_demo.dart inside the libfolder.

Now, we will describe the LayoutBuilder() class.

Before using the LayoutBuilder class, we have taken a container widget in which the LayoutBuilder is used. The layout builder has three containers, all of which have different colors and text and has a condition. If the width of the device size given by the user is greater than 480 then two container boxes will appear which will be visible when the tablet or screen is rotated horizontally. otherwise, the normal container will be visible. Let us understand this in detail with the help of a reference.

LayoutBuilder(
  builder: (BuildContext ctx, BoxConstraints constraints) {
    // if the screen width >= 480 i.e Wide Screen
    if (constraints.maxWidth >= 480) {
      return Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: <Widget>[
          Container(
            padding:EdgeInsets.symmetric(horizontal: 8),
            alignment: Alignment.center,
            height: constraints.maxHeight * 0.3,
            margin: EdgeInsets.fromLTRB(10.0, 0.0,10.0,0.0),
            decoration: BoxDecoration(
              color: Colors.red,
              borderRadius: BorderRadius.all(Radius.circular(10)),
            ),
            child: Text(
              'Left Wide Screen',
              style: TextStyle(
                fontSize: 14,
                fontWeight: FontWeight.bold,
                color: Colors.white,
              ),
            ),
          ),
          Container(
            padding:EdgeInsets.symmetric(horizontal: 8),
            alignment: Alignment.center,
            height: constraints.maxHeight * 0.3,
            margin: EdgeInsets.fromLTRB(10.0, 0.0,10.0,0.0),
            decoration: BoxDecoration(
              color: Colors.orange,
              borderRadius: BorderRadius.all(Radius.circular(10)),
            ),
            child: Text(
              'Right Wide Screen',
              style: TextStyle(
                fontSize: 14,
                fontWeight: FontWeight.bold,
                color: Colors.white,
              ),
            ),
          ),
        ],
      );

      // If screen size is < 480
    } else {
      return Container(
        alignment: Alignment.center,
        height: constraints.maxHeight * 0.3,
        margin: EdgeInsets.fromLTRB(10.0, 0.0,10.0,0.0),
        decoration: BoxDecoration(
          color: Colors.cyan,
          borderRadius: BorderRadius.all(Radius.circular(10)),
        ),
        child: Text(
          'Normal Screen',
          style: TextStyle(
            fontSize: 18,
            fontWeight: FontWeight.bold,
            color: Colors.white,
          ),
        ),
      );
    }
  },
)

When we run the application, we ought to get the screen’s output like the underneath screen capture.

When the screen size larger than 480 then the result will the image is given on rotating the device.

Code File :

import 'package:flutter/material.dart';
import 'package:flutter_layout_builder_demo/themes/device_size.dart';

class LayoutBuilderDemo extends StatefulWidget {
  @override
  _LayoutBuilderDemoState createState() => _LayoutBuilderDemoState();
}

class _LayoutBuilderDemoState extends State<LayoutBuilderDemo> {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        appBar: AppBar(
          title: Text('LayoutBuilder Demo'),
          centerTitle: true,
        ),
        body: Container(
          /// Giving dimensions to parent Container
          /// using MediaQuery
          height: DeviceSize.height(context),
          width: DeviceSize.width(context),
          alignment: Alignment.center,

          child: LayoutBuilder(
            builder: (BuildContext ctx, BoxConstraints constraints) {
              // if the screen width >= 480 i.e Wide Screen
              if (constraints.maxWidth >= 480) {
                return Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: <Widget>[
                    Container(
                      padding:EdgeInsets.symmetric(horizontal: 8),
                      alignment: Alignment.center,
                      height: constraints.maxHeight * 0.3,
                      margin: EdgeInsets.fromLTRB(10.0, 0.0,10.0,0.0),
                      decoration: BoxDecoration(
                        color: Colors.red,
                        borderRadius: BorderRadius.all(Radius.circular(10)),
                      ),
                      child: Text(
                        'Left Wide Screen',
                        style: TextStyle(
                          fontSize: 14,
                          fontWeight: FontWeight.bold,
                          color: Colors.white,
                        ),
                      ),
                    ),
                    Container(
                      padding:EdgeInsets.symmetric(horizontal: 8),
                      alignment: Alignment.center,
                      height: constraints.maxHeight * 0.3,
                      margin: EdgeInsets.fromLTRB(10.0, 0.0,10.0,0.0),
                      decoration: BoxDecoration(
                        color: Colors.orange,
                        borderRadius: BorderRadius.all(Radius.circular(10)),
                      ),
                      child: Text(
                        'Right Wide Screen',
                        style: TextStyle(
                          fontSize: 14,
                          fontWeight: FontWeight.bold,
                          color: Colors.white,
                        ),
                      ),
                    ),
                  ],
                );

                // If screen size is < 480
              } else {
                return Container(
                  alignment: Alignment.center,
                  height: constraints.maxHeight * 0.3,
                  margin: EdgeInsets.fromLTRB(10.0, 0.0,10.0,0.0),
                  decoration: BoxDecoration(
                    color: Colors.cyan,
                    borderRadius: BorderRadius.all(Radius.circular(10)),
                  ),
                  child: Text(
                    'Normal Screen',
                    style: TextStyle(
                      fontSize: 18,
                      fontWeight: FontWeight.bold,
                      color: Colors.white,
                    ),
                  ),
                );
              }
            },
          ),
        ),
      ),
    );
  }
}

Conclusion :

In this article, I have explained a LayoutBuilder in a flutter, which you can modify and experiment with according to your own, this little introduction was from the LayoutBuilder demo from our side.

I hope this blog will provide you with sufficient information in Trying up the LayoutBuilder in your flutter project. We showed you what the LayoutBuilder is and work on it in your flutter applications, So please try it.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us
And read more articles from FlutterDevs.com.

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While creating Flutter applications, now and again, we might need to give a choice to the user to sort the items in the ListView based on explicit models. This sortable ListView provides an easy-to-understand method for a survey and sorting the information in the application, making it more straightforward and quicker for them to find the data they need.

This article will explore the Sortable ListView In Flutter. We will perceive how to execute a demo program and we are going to learn about how we can create it in your Flutter applications without using any third-party packages.

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Table Of Contents::

Introduction

Implementation

Code File

Conclusion

Introduction:

The below demo video tells the best way to make a Sortable ListView in a flutter. It shows how the Sortable ListView will function in your Flutter applications. It shows when the user can sort the items in the ListView by value low to high, and high to low by tapping the price label in the header of the ListView.

Demo Module :

How to implement code in dart file :

You need to implement it in your code respectively:

Create a new dart file called main.dart inside the lib folder.

Our demo application has a ListView that shows a list of fiction items with 3 attributes: id, name, and price. The header will likewise show an up or down bolt symbol demonstrating whether the items are arranged in ascending or descending request.

First, we will create a new HomePage() class. In this class, we will add the sort order. We will add a bool variable was _sortAscending is equal to true.

bool _sortAscending = true;

Now, we will add the list of products. We will add a list map of the string, dynamics, and the variable was _products.

final List<Map<String, dynamic>> _products = [
  {'id': 1, 'name': 'Flutter Course', 'price': 23.99},
  {'id': 2, 'name': 'ReactNative Course', 'price': 19.99},
  {'id': 3, 'name': 'Python Course', 'price': 16.99},
  {'id': 4, 'name': 'Swiftic Course', 'price': 35.99},
  {'id': 5, 'name': 'Xamarin Course', 'price': 25.99},
];

Now, we will add the _sortProducts() method. In this method, we will add the setState() function. In this function, we sort the list of products. This function is called when the user taps the sort button.

void _sortProducts(bool ascending) {
  setState(() {
    _sortAscending = ascending;
    _products.sort((a, b) => ascending
        ? a['price'].compareTo(b['price'])
        : b['price'].compareTo(a['price']));
  });
}

In the body, we will add a Container widget. In this widget, we will add the Row Widget. Inside the widget, we will add the header of the list that was text ‘Price Low to High’ else ‘Price High to Low’. Now, we will add the sort button for the user. We will add the InkWell widget. In this widget, we will add onTap was navigate _sortProducts(!_sortAscending), add a row widget inside a text and icons was arrow up and down.

Container(
  padding: const EdgeInsets.symmetric(vertical: 29, horizontal: 8),
  child: Row(
    mainAxisAlignment: MainAxisAlignment.spaceBetween,
    children: [
      Text(
        _sortAscending ? 'Price Low to High' : 'Price High to Low',
        style: const TextStyle(
          fontSize: 20.0,
          fontWeight: FontWeight.bold,
        ),
      ),
      // the sort button
      InkWell(
        onTap: () => _sortProducts(!_sortAscending),
        child: Row(
          children: [
             Text(
              'Price',
              style: TextStyle(
                fontSize: 16.0,
                fontWeight: FontWeight.bold,
                color: Colors.blue.shade500,
              ),
            ),
            // the up/down arrow that indicates the sort order
            Icon(
              _sortAscending
                  ? Icons.arrow_drop_down
                  : Icons.arrow_drop_up,
              color: Colors.blue,
            ),
          ],
        ),
      ),
    ],
  ),
),

Now, we will add the list of products. We will add the Expanded widget. In this widget, we will add ListView.builder() method. In this method, we will add the itemCount as products. length, itemBuilder was the list item- product. We will return a Container widget. In this widget, we will add a row widget. Inside the widget, we will add three texts id, name, and price.

Expanded(
  child: ListView.builder(
    itemCount: _products.length,
    itemBuilder: (context, index) {
      // the list item - product
      return Container(
        padding: const EdgeInsets.all(16),
        margin: const EdgeInsets.only(bottom: 3),
        decoration: BoxDecoration(
          border: Border.all(color: Colors.grey),
          borderRadius: BorderRadius.circular(5.0),
        ),
        child: Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
            Text(
              '${_products[index]['id']}',
              style: const TextStyle(
                fontSize: 16.0,
                fontWeight: FontWeight.bold,
              ),
            ),
            Text(
              '${_products[index]['name']}',
              style: const TextStyle(
                fontSize: 16.0,
              ),
            ),
            Text(
              '\$${_products[index]['price']}',
              style: const TextStyle(
                fontSize: 16.0,
                fontWeight: FontWeight.bold,
                color: Colors.green,
              ),
            ),
          ],
        ),
      );
    },
  ),
),

When we run the application, we ought to get the screen’s output like the underneath screen capture.

Code File:

import 'package:flutter/material.dart';
import 'package:flutter_sortable_listview_demo/splash_screen.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Splash(),
    );
  }
}

class HomePage extends StatefulWidget {
  const HomePage({super.key});

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

class _HomePageState extends State<HomePage> {

  bool _sortAscending = true;

  final List<Map<String, dynamic>> _products = [
    {'id': 1, 'name': 'Flutter Course', 'price': 23.99},
    {'id': 2, 'name': 'ReactNative Course', 'price': 19.99},
    {'id': 3, 'name': 'Python Course', 'price': 16.99},
    {'id': 4, 'name': 'Swiftic Course', 'price': 35.99},
    {'id': 5, 'name': 'Xamarin Course', 'price': 25.99},
  ];

// the function that sorts the list of products
// this function is called when the user taps the sort button
  void _sortProducts(bool ascending) {
    setState(() {
      _sortAscending = ascending;
      _products.sort((a, b) => ascending
          ? a['price'].compareTo(b['price'])
          : b['price'].compareTo(a['price']));
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Flutter Sortable Listview Demo'),
        automaticallyImplyLeading: false,
        centerTitle: true,
        backgroundColor: Colors.red.shade300,
      ),
      body: Column(
        children: [
          Container(
            padding: const EdgeInsets.symmetric(vertical: 29, horizontal: 8),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                Text(
                  _sortAscending ? 'Price Low to High' : 'Price High to Low',
                  style: const TextStyle(
                    fontSize: 20.0,
                    fontWeight: FontWeight.bold,
                  ),
                ),
                InkWell(
                  onTap: () => _sortProducts(!_sortAscending),
                  child: Row(
                    children: [
                       Text(
                        'Price',
                        style: TextStyle(
                          fontSize: 16.0,
                          fontWeight: FontWeight.bold,
                          color: Colors.blue.shade500,
                        ),
                      ),
                      Icon(
                        _sortAscending
                            ? Icons.arrow_drop_down
                            : Icons.arrow_drop_up,
                        color: Colors.blue,
                      ),
                    ],
                  ),
                ),
              ],
            ),
          ),
          Expanded(
            child: ListView.builder(
              itemCount: _products.length,
              itemBuilder: (context, index) {
                // the list item - product
                return Container(
                  padding: const EdgeInsets.all(16),
                  margin: const EdgeInsets.only(bottom: 3),
                  decoration: BoxDecoration(
                    border: Border.all(color: Colors.grey),
                    borderRadius: BorderRadius.circular(5.0),
                  ),
                  child: Row(
                    mainAxisAlignment: MainAxisAlignment.spaceBetween,
                    children: [
                      Text(
                        '${_products[index]['id']}',
                        style: const TextStyle(
                          fontSize: 16.0,
                          fontWeight: FontWeight.bold,
                        ),
                      ),
                      Text(
                        '${_products[index]['name']}',
                        style: const TextStyle(
                          fontSize: 16.0,
                        ),
                      ),
                      Text(
                        '\$${_products[index]['price']}',
                        style: const TextStyle(
                          fontSize: 16.0,
                          fontWeight: FontWeight.bold,
                          color: Colors.green,
                        ),
                      ),
                    ],
                  ),
                );
              },
            ),
          ),
        ],
      ),
    );
  }
}

Conclusion:

In the article, I have explained the Sortable ListView basic structure in a flutter; you can modify this code according to your choice. This was a small introduction to Sortable ListView On User Interaction from my side, and it’s working using Flutter.

I hope this blog will provide you with sufficient information on Trying the Sortable ListView in your Flutter projects. We will show you what the Introduction is. Make a demo program for a working Length Converter in your Flutter applications. So please try it.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

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We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy how you use Flutter to build beautiful, interactive web experiences.