In this blog, we will explore the Animated Align Widget in a flutter. We will be using some core functions available in a flutter. We will implement a demo of the Animated Align Widget in your flutter applications. So let’s get started.

---

Table of Contents :

Flutter

Animated Align Widget

Demo Module

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 ”.

Animated Align Widget:

The Animated Align Widget align that automatically positions the child’s position in a given period in a given alignment. And you can choose a period with a curve for the animation. And the widget will animate the alignment to the new target.

Let’s talk about some main constructors of the animated Align Widget. This widget has 3 properties. which do this work in our entire animation. As follows.

alignment(Alignment): where initially the child widget is placed.

curve(Curve): Easy curves are used to adjust the rate of changes in curve animation. This allows the speed to be slow and fast. there are some different-different types of options available.

duration(Duration): the Duration we can decide the time taken for a change of alignment according to ourselves.

Demo Module :

Code Implementation:

Create a new dart file calledanimated_align_demo inside the lib folder.

AnimatedAlign(
  alignment: _alignment,
  duration: Duration(seconds: 2),
  curve: Curves.easeInOutBack,
  child: SizedBox(
      width: 100.0,
      height: 100.0,
      child: Image.asset(
        'assets/images/pluginIcon.png',
        height: 40,
      )),
),

As I have understood above about the animated align widget. I have considered this as a demo in this screen. And a little code of this widget has been given above. As this screen has an image whose arrangement will go from Alignment.topRight to Alignment.bottomLeft. The duration time is also set as per our It has the option of the curve. There are many types of the curve. We have used the curves (Curves.easeInOutBack).

Code File :

import 'package:flutter/material.dart';
import 'dart:math' as math;

import 'package:flutter/painting.dart';

class AnimatedAlignDemo extends StatefulWidget {
  @override
  _AnimatedAlignDemoState createState() => _AnimatedAlignDemoState();
}

class _AnimatedAlignDemoState extends State<AnimatedAlignDemo> {
  static const _alignments = [
    // Alignment.topLeft,
    Alignment.topRight,
    Alignment.bottomLeft,
    //   Alignment.bottomRight,
  ];

  var _index = 0;

  AlignmentGeometry get _alignment => _alignments[_index % _alignments.length];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        elevation: 0.0,
        backgroundColor: Colors.white,
        title: Text(
          'Animated Align',
          style: TextStyle(
            color: Colors.black,
          ),
        ),
        centerTitle: true,
      ),
      body: Container(
        padding: EdgeInsets.all(15),
        child: Stack(
          alignment: Alignment.bottomCenter,
          children: <Widget>[
            AnimatedAlign(
              alignment: _alignment,
              duration: Duration(seconds: 2),
              curve: Curves.easeInOutBack,
              child: SizedBox(
                  width: 100.0,
                  height: 100.0,
                  child: Image.asset(
                    'assets/images/pluginIcon.png',
                    height: 40,
                  )),
            ),
            ButtonTheme(
              minWidth: 100,
              height: 50,
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.circular(30),
              ),
              child: RaisedButton(
                color: Colors.purple.withOpacity(0.6),
                onPressed: () {
                  setState(() {
                    _index++;
                  });
                },
                child: Text(
                  'Click Me',
                  style: TextStyle(
                      fontFamily: 'Roboto Medium',
                      fontSize: 15.0,
                      fontWeight: FontWeight.w600,
                      letterSpacing: 0.3,
                      color: Colors.white),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

Conclusion :

In this article, I have explained an Animated Align Widget demo, you can modify and experiment according to your own, this little introduction was from the Animated Align Widget our side.

I hope this blog will provide you with sufficient information in Trying up the Animated Align Widget in your flutter project. 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 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.

Today mobile users expect their apps should have a beautiful UI design, smooth animations, and great performance. To achieve this developer needs to create a new feature without compromising on quality and performance. That’s why Google build Flutter.

In this article, I’ll explain how to use the IgnorePointer widget in Flutter 

---

Table of Contents :

Flutter — Introduction

Widgets — Introduction

IgnorePointer

Code Implementation

Code File

Conclusion

---

What is Flutter?

Flutter is Google’s open-source UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.

Widgets

Widget is a way to declare UI in a flutter. Flutter provides several widgets that help you build apps that follow Material Design that takes inspiration from React. The central idea is that you build your UI out of widgets. Widgets describe what their view should look like given their current configuration and state.

IgnorePoiner

IgnorePointer is a built-in widget that prevents their children’s widget from pointer-events like tapping, dragging, scrolling, and hover. This widget ignores the pointer-events without terminating them.

Constructor: Creates a widget that is invisible to hit testing.

Properties

ignoring -> takes bool value and decides whether to ignore pointer event or not

ignoringSemantics -> Whether the semantics of this widget is ignored when compiling the semantics tree

Code Implementation

Let’s move on the coding part

This widget is used to prevent unnecessary touch of UI. It is very simple just wrap your widget inside the IgnorePointer widget.

First, we create a widget and wrap it into the IgnorePointer widget.

In this snippet, we are using a button that is wrapped with the IgnorePointer widget. When ignoring is true RaisedButton can’t perform any action. So, IgnorePointer ignoring all the pointer-events. The code is shown below.

Code File

import 'package:flutter/material.dart';

class MyIgnorePointer extends StatefulWidget {
  @override
  _MyIgnorePointerState createState() => _MyIgnorePointerState();
}

class _MyIgnorePointerState extends State<MyIgnorePointer> {
  bool _isIgnore = false;
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text('Ignore Pointer Demo'),
        ),
      body: Builder(
        builder: (context) => Center(
          child: Padding(
            padding: EdgeInsets.all(15.0),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                IgnorePointer(
                  ignoring: _isIgnore,
                  child: Column(
                    children: <Widget>[

                      Container(
                        width:  MediaQuery.of(context).size.width,
                        height: 55,
                        child: RaisedButton(
                          child: Text('Click me',style: TextStyle(
                            color: Colors.white,
                            fontSize: 20,
                            fontWeight: FontWeight.bold
                          ),),
                          onPressed: (){
                         
                            showAlertDialog(context);
                          },
                          shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.all(
                                Radius.circular(8)),
                          ),
                          color: Colors.blue,

                        ),
                      ),
                    ],
                  ),
                ),
                Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: <Widget>[
                    Text('Enable Ignore Pointer?'),
                    Switch(
                        value: _isIgnore,
                        onChanged: (bool value) {
                          setState(() {
                            _isIgnore = value;
                          });
                        }),
                  ],
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }

  showAlertDialog(BuildContext context) {

    // set up the button
    Widget okButton = FlatButton(
      child: Text("OK"),
      onPressed: () {
        Navigator.pop(context);
      },
    );

    // set up the AlertDialog
    AlertDialog alert = AlertDialog(
      title: Text("Message"),
      content: Text("Button is pressed."),
      actions: [
        okButton,
      ],
    );

    // show the dialog
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return alert;
      },
    );
  }}

Conclusion

In this article, I have explained the IgnorePointer widget demo, which you can modify and experiment with according to your own. This little introduction was about to prevent user touch of UI.

I hope this blog will provide you with sufficient information in trying up IgnorePointer Widgets in your flutter projects. We will show to prevent the UI from user interaction, some properties using in “ignoring”, and make a demo program for working IgnoringPointer 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 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.

In this blog, We are going to discuss about the TabBar. How the TabBar works. And why we use Tabbar. and we will discuss how to display a horizontal row of tabs and display a widget that corresponds to the currently selected tab. We will explain all these in a demo. Now let’s start.

---

Table of Contents :

Flutter

TabBar

Demo Module

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 code base in record time ”

TabBar:

The TabBar is used mainly to navigate different screens in one screen. This is what you need first to build the TabBarController. There are two ways to do this. By using the DefaultTabbarController or by creating a TabController.

We mainly need 3 components to create this TabBar.

1. Create a TabController.
2. Create the tabs.
3. TabBarView.

TabController: The TabController is used to control the movement between created tabs.

TabController(length: list.length, vsync: this);

Create Tabs: We need a scaffold to create a TabBar. It should have a bottom attribute. Tabs are a list of forms. This means that it is necessary to have as many tabs as you are making.

bottom: new TabBar(
  tabs: <Widget>[
    Tab(icon: Icon(Icons.cake)),
    Tab(icon: Icon(Icons.android)),
    Tab(icon: Icon(Icons.phone_android)),
  ],
),

TabView: When we press any TabBar using the TabView, we see a new page.

For Example, We can see the WhatsApp App as if we click any tab, then a different page appears on the different tabs.

Demo Module:

Code Implementation:

There are two buttons in this screen, which on clicking will navigate us to the result of the tabbar on the screen.

DefaultTabBarController:

In this screen, we have used the DefaultTabBarController for TabBar. The TabBar DefaultTabBarController is an inherited widget. It is used to share a TabController with a TabBar or TabBarView.If you are using the stateless widget. The best approach is to use DefaultTabController.And in TabBar we have used 3 different icons. On Tap its icon, we have shown different view in TabbarView.

Let us understand this with the help of a reference.

DefaultTabController(
  length: 3,
  child: new Scaffold(
    appBar: new AppBar(
      title: new Text("TabBar Widget"),
      bottom: new TabBar(
        tabs: <Widget>[
          Tab(icon: Icon(Icons.cake)),
          Tab(icon: Icon(Icons.android)),
          Tab(icon: Icon(Icons.phone_android)),
        ],
      ),
    ),
    body: new TabBarView(
      children: <Widget>[
        Container(
          color: Colors.deepOrangeAccent,
          child: new Center(
            child: new Text(
              "Cake",
              style: textStyle(),
            ),
          ),
        ),
      ],
    ),
  ),
)

The DefaultTabController results can be seen in the image.

Custom TabController:

In this screen, a custom TabController is used in the TabBar. For This stateful widget is used.

Let us understand this with the help of a reference.

First of all create a Stateful Widget.which should be SingleTickerProviderStateMixin.

class CustomTabBarDemo extends StatefulWidget {
  @override
  _CustomTabBarDemoState createState() => _CustomTabBarDemoState();
}

class _CustomTabBarDemoState extends State<CustomTabBarDemo> with SingleTickerProviderStateMixin {

}

To create a tab in it, create a tab list and create an object of its TabController.

List<Widget> list = [
  Tab(icon: Icon(Icons.android)),
  Tab(icon: Icon(Icons.add_shopping_cart)),
  Tab(icon: Icon(Icons.card_giftcard)),
  Tab(icon: Icon(Icons.phone_android)),
];

//////////////////////////////////////////////
TabController _tabController;

Initalize the TabController inside the initState() method and also override it in the dispose() method.

@override
void initState() {
  super.initState();
  _tabController =
      TabController(length:list.length, vsync: this);// initialise it here
}

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

The CustomTabBar results can be seen in the image.

Code File:

I am posting the code of both examples. Which I have created as a demo in this blog.

DefaultTabBarController Code File:

import 'package:flutter/material.dart';
class TabBarDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    textStyle() {
      return TextStyle(color: Colors.white, fontSize: 30.0);
    }
    return new DefaultTabController(
      length: 3,
      child: Scaffold(
        appBar: AppBar(
          title:Text("TabBar Widget"),
          bottom:TabBar(
            tabs: <Widget>[
              Tab(icon: Icon(Icons.cake)),
              Tab(icon: Icon(Icons.android)),
              Tab(icon: Icon(Icons.phone_android)),
            ],
          ),
        ),
        body:TabBarView(
          children: <Widget>[
            Container(
              color: Colors.deepOrangeAccent,
              child:Center(
                child:Text(
                  "Cake",
                  style: textStyle(),
                ),
              ),
            ),
            Container(
              color: Colors.blueGrey,
              child:Center(
                child:Text(
                  "Android",
                  style: textStyle(),
                ),
              ),
            ),
            Container(
              color: Colors.teal,
              child:Center(
                child:Text(
                  "Mobile",
                  style: textStyle(),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

Custom TabBarController Code File:

import 'package:flutter/material.dart';
class CustomTabBarDemo extends StatefulWidget {
  @override
  _CustomTabBarDemoState createState() => _CustomTabBarDemoState();
}

class _CustomTabBarDemoState extends State<CustomTabBarDemo> with SingleTickerProviderStateMixin {
  TabController _tabController;
  @override
  void initState() {
    super.initState();
    _tabController =
        TabController(length:list.length, vsync: this);// initialise it here
  }

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

  List<Widget> list = [
    Tab(icon: Icon(Icons.android)),
    Tab(icon: Icon(Icons.add_shopping_cart)),
    Tab(icon: Icon(Icons.card_giftcard)),
    Tab(icon: Icon(Icons.phone_android)),
  ];

  textStyle() {
    return TextStyle(color: Colors.black, fontSize:20.0);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        bottom: TabBar(
          controller: _tabController,
          isScrollable: true,
          tabs:list,
          indicator: UnderlineTabIndicator(
              borderSide: BorderSide(width: 2.0,color:Colors.white),
              insets: EdgeInsets.symmetric(horizontal:0.0)
          ),


//        /  indicatorPadding: EdgeInsets.all(0.0),
          indicatorWeight: 4.0,
          labelPadding: EdgeInsets.only(left:30.0, right:30.0),
        ),
        title: Text('tabBar'),

      ),

      body: TabBarView(
        controller: _tabController,
        children: [
          Center(
              child: Text(
                'Cake',
                style: textStyle(),
              )),
          Center(
              child: Text(
                'Cart',
                style: textStyle(),
              )),
          Center(
              child: Text(
                'GiftCard',
                style: textStyle(),
              )),
          Center(
              child: Text(
                'Phone',
                style: textStyle(),
              )),
        ],
      ),

    );
  }
}

Conclusion :

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

I hope this blog helps will provide you with sufficient information in Trying up the TabBar List widget in your flutter project. In this demo explain the TaBar widget in flutter. So please try it.

❤ ❤ 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 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 widget is built using a modern framework. It is like a react. In this, we start with the widget to create any application. Each component in the screen is a widget. The widget describes this. of what his outlook should be given his present configuration and condition. Widget shows were similar to its idea and current setup and state.

In this article, we will Explore Dismissble Widget In Flutter. We will also implement a demo of the Dismissble, and describes his properties. and how to use them in your flutter applications. So let’s get started.

---

Table Of Contents:

Disimissble Widget

Code Implementation

Code File

Conclusion

---

Disimissble Widget:

A widget that we can drag and dismiss in the indicative direction. So you can wrap the widget as a child of unacceptable. The separable is usually used to wrap a list item so that it can be ruled out horizontally or vertically.

The Disimissble class provides some properties which we have described below.

1. Background — At the time of dismissal in the background, you can set the background color of its item.
2. Direction —The direction allows us to specify direction.
3. onDismissed — OnDisimissed (onDismissed) is based on the important property.it is the callback function. It accepts one parameter of the design direction.

Demo Module:

In this demo module, we have a list item which contains some data. when we swipe the item. So the item gets deleted from the list.

Code Implementation:

In this screen, we have a list of items that we have done with the ItemBuilder method. And in this, we have used the Flutter Dismissible widget. It receives a method under onDismissed along with the DismissDirection.

Let us understand this with the help of a reference.

ListView.builder(
    itemCount: data.length,
    itemBuilder: (BuildContext context, int index) {
      return Dismissible(
        onDismissed: (DismissDirection direction) {
          setState(() {
            data.removeAt(index);
          });
        },
        secondaryBackground: Container(
          child: Center(
            child: Text(
              'Delete',
              style: TextStyle(color: Colors.white),
            ),
          ),
          color: Colors.red,
        ),
        background: Container(),
        child: DissmbleLayoutCard(movie: data[index]),
        key: UniqueKey(),
        direction: DismissDirection.endToStart,
      );
    },
  )

We have set the color for the background color. The Item which is red color visible in delete time.

Dismissible(
  key: ValueKey(item),
  background: Container(
    color: Colors.red,
  ),
  secondaryBackground: Container(
          child: Center(
            child: Text(
              'Delete',
              style: TextStyle(color: Colors.white),
            ),
          ),
          color: Colors.red,
        ),
  ...
)

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_dissmble_demo/data.dart';
import 'package:flutter_dissmble_demo/dissimble_layout_card.dart';
import 'package:flutter_dissmble_demo/model/shopping_item.dart';

class DissmbleDemo extends StatefulWidget {
  @override
  _DissmbleDemoState createState() => _DissmbleDemoState();
}

class _DissmbleDemoState extends State<DissmbleDemo> {
  final List<Dissimble_Item_Model> data = Data.getShoppingItem();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.white,
        title: Text(
          'Dismissible',
          style: TextStyle(
              fontSize: 16,
              fontWeight: FontWeight.w500,
              letterSpacing: 0.4,
              color: Colors.black),
        ),
        centerTitle: true,
      ),
      body: Container(
        child: data.length > 0
            ? ListView.builder(
                itemCount: data.length,
                itemBuilder: (BuildContext context, int index) {
                  return Dismissible(
                    onDismissed: (DismissDirection direction) {
                      setState(() {
                        data.removeAt(index);
                      });
                    },
                    secondaryBackground: Container(
                      child: Center(
                        child: Text(
                          'Delete',
                          style: TextStyle(color: Colors.white),
                        ),
                      ),
                      color: Colors.red,
                    ),
                    background: Container(),
                    child: DissmbleLayoutCard(movie: data[index]),
                    key: UniqueKey(),
                    direction: DismissDirection.endToStart,
                  );
                },
              )
            : Center(child: Text('No Items')),
      ),
    );
  }
}

Conclusion:

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

I hope this blog will provide you with sufficient information in Trying up the Dismissble widget in your flutter project. We will show you the Dismissble widget 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.

---

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 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.