Flutter development often involves designing clean, maintainable, and reusable code. One of the key tools in achieving that is abstract classes. In this article, we’ll explore how abstract classes work in Dart using a brand-new example focused on different modes of transport, with added clarity and use-case driven explanations. 🔍 What Are Abstract Classes? An abstract class is a… Read More »
Below are the 5 Best uses of FutureBuilder in Flutter with code in one simple code with comments
Here are the 30 common SQL queries with examples. These cover a wide range of database operations from basic to more advanced. Basic SELECT Queries Filtering and Conditions Aggregations and Grouping Joins Subqueries Data Modification Advanced Queries These queries cover the most common operations you’ll need when working with SQL databases. Each example can be… Read More »
In this example, we use the Draggable widget to create a draggable square-shaped container with a touch_app icon. Here’s a breakdown of the code: You can run this code in a Flutter project to see the draggable widget in action.
Theme extensions were introduced in Flutter 3. But what are Theme Extensions? As the name says, it helps to extend the inbuilt themes with our own extensions. Let’s jump into an example So when you create a flutter app, your basic root widget will look like this return MaterialApp( title: ‘Flutter Theme Extensions’, theme: ThemeData(… Read More »
1. Avoid Functional Widgets We usually have a situation where we need to separate out UI code from the widget, But we avoid creating a separate widget and use function which returns Widget. This practice have some benefits, like you don’t need to pass all parameters in your new widget, You have less code and less files.… Read More »
1. Placeholder Widgets Use SizedBox instead of Container as Placeholder widgets. Take a look at the below use-case return _loaded ? Container() : YourWidget(); The SizedBox is a const constructor and creates a fixed-size box. The width and height parameters can be null to indicate that the size of the box should not be constrained in the corresponding dimension.… Read More »
In this article I am showing a useful plugin to debug network calls in Flutter. Alice! You can find the alice package here. Alice is an HTTP Inspector tool for Flutter which helps debugging http requests. It catches and stores http requests and responses, which can be viewed via simple UI. It is simple to… Read More »
Questions How can we create dynamic forms in Flutter? How can we access data from dynamic Forms? Watch Video Tutorial So let’s create a simple dynamic layout We are gonna create a dynamic layout with one TexField when we tap on a plus button in the AppBar. So this is how our AppBar is going… Read More »
In this article, we will see how we can use BLoc to Theme your app in Flutter. To understand BLoC with a real world example, you can refer to my previous post on BLoC here. Part 1 Part 1 For this demo also we will need the below plugins If you follow my previous tutorial,… Read More »
In this article we will learn BLoc pattern in flutter for State Management with a simple real world example. Watch Video Tutorial For this example, we will try to consume a web service. The service we are going to use is https://jsonplaceholder.typicode.com/albums What BLoc does? BLoc helps to separate you presentation and business logic. So… Read More »
In this article we are gonna talk about how to use YouTube API’s and play YouTube videos in Flutter. Watch Video Tutorial Add Dependencies Open pubspec.yaml file in your Flutter project and add below dependencies Now, Let’s create two screens Home Screen Video Player Screen In the HomeScreen we will show the list of videos.… Read More »
Hello everyone, In this article we will learn how to show local notifications in Flutter. What we are going to learn? Show Simple notifications Show Repeated Notifications Show Scheduled Notifications Show Notifications at a particular time and day of a week Show Notification with an attachment Show Notifications with HTML content Cancel a Notification. Cancel… Read More »
We all at sometime have played audio in our apps, correct? But we may not have created a complete music player that will run even if the application is not running in the foreground, yes? Watch Video Tutorial So in this article we will see how we can easily create such a music player. Our… Read More »
In this article, we will how to select an image by capturing from camera or gallery, then we will save the image in app’s temporary directory in a separate thread and then load it from there. Watch Video Tutorial For this demo we need three packages. Add Dependencies Open pubspec.yaml file and then add the… Read More »
In this article we will see how we can create a chat application in flutter using Socket IO node js server. For this we need to have a server installed with Node js Socket IO and related dependencies So let’ start with Flutter. Here we need three screens Login screen Chat Users List screen Chat… Read More »
Hi, This article might be an important one for people who are new into Flutter and others too. I am going to explain about a simple thing here. How do you parse complex JSON in Flutter into Dart classes. Of-course there are libraries in Dart to do that. But that requires an extra bit of… Read More »
With Providers and MultiProviders we can do easy StateManagement in Flutter. State Management in Flutter Watch Video Tutorial Add Dependencies First Go to your pubspec.yaml file add the below dependency, I would recommend to add the latest dependency version, at this moment it is 4.0.4 provider: ^4.0.4 The Providers will have Change Notifiers Consumers The Basic… Read More »
Today’s video will let you know how to create sockets in Flutter to make bi-directional communication possible. First we will go with the ‘IOWebSocketChannel‘ class. Watch Video Tutorial You can read about IOWebSocketChannel by following this link. Let’s use the Official Sample first. Create a new file SocketDemo.dart and add the below code into it.… Read More »
Wrap widget is such a useful widget in many circumstances. Watch Video Tutorial First Let’s create a Chip Widget. The above code creates a Chip widget and you can add it to the UI as you want. If we add it inside a row…then this happens… But we want the chips that overflow to be… Read More »
This article will show how to send push notifications in Flutter using Firebase. We will start with Android. Add Dependency For sending push notifications we use a plugin called firebase_messaging… https://pub.dev/packages/firebase_messaging Open your pubspec.yaml file and add this dependency Firebase Account Make sure you have a firebase account before proceeding. Once you have created your… Read More »
This article will help you to understand what are extension methods and what is the use of extension methods. Extension functions can be added to classes which are already compiled. So if you want to extend a library which is already added in your app, you can make use of Extension methods. Watch Video Tutorial… Read More »
In this article, we will see how to theme our apps in Flutter. As you know Google and Apple has released Dark Mode and Light Modes in their latest OS releases in Android 10 and iOS 13. So we have to make sure that our apps works perfectly when the user switch modes in their… Read More »
Today we will see how we can properly handle errors and exceptions in Flutter. Watch Video Tutorial For this example we will be doing a service call and handle exceptions related to that. We will create a sample service here In the above example we are catching all exceptions using a simple try catch block… Read More »
Watch Video Tutorial Navigate using Push Normally if we want to navigate from one screen to another we would use Navigate.push, like in the code below And if we want to send parameters, then one of the way to do this is like below Here SecondScreen is another screen that extends StatelessWidget or StatefulWidget which… Read More »