What is Flutter and Why Use Flutter for App Development - NullClass

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What is Flutter and Why Use Flutter for App Development

There was no Flutter in 2015, but there was a “browser war.” Chrome’s developers were pondering how to improve their browser. As a result, the team decided to remove CSS from the browser engine, which resulted in a significant performance boost.

The realisation that it had to be used led to the creation of Flutter. In this tutorial, we’ll go over what Flutter is and when and how to utilise it to create attractive apps in a short amount of time.


What is Flutter?

Google released Flutter as an open-source framework for coding and developing native Android and iOS apps. Flutter is a relatively new framework, having been unveiled as the first stable version 1.0 at the Flutter Live event in December 2018.

Flutter offers the simplicity of programming with native-like performance, all while retaining visual consistency across platforms. Dart, Flutter’s programming language, was designed to be a replacement for JavaScript. Flutter is, above all, open-source and absolutely free.

On GitHub and Stack Overflow, Flutter is now tied with React Native in terms of popularity. In a recent article, we compared the benefits and drawbacks of Flutter vs React Native using nine criteria.

Flutter is used by Google for a number of Google Assistant modules as well as the Google Home Hub user interface. Furthermore, there are currently 50,000 Flutter apps available in the Google Play Store, with the number rapidly increasing. Flutter is used by Alibaba Group, eBay, Groupon, and other well-known e-commerce companies to provide their web and mobile applications with a consistent aesthetic.

“Our aim for Flutter is something that many of us have been dreaming of for years – a strong, general-purpose, open UI toolkit for designing amazing experiences on any device-embedded, mobile, desktop, or beyond,” says Tim Sneath, Group Product Manager at Google.


How Flutter Works: Widget Strategy and Dart Programming Language

The Flutter engine, Foundation library, and widgets are all part of the Flutter framework, which is built in the Dart programming language. Flutter’s approach to development varies from others in that it uses declarative UI writing.

There is a need to start from the end here, which means that before beginning to design any piece, the user must have a complete idea of what sort of UI it will be. Many developers consider this UI writing to be more straightforward, however, it does provide some challenges for developers at first.

What is Flutter and Why to Use Flutter for App Development

Flutter’s main notion is that developers may create a whole user interface by just merging several widgets. The application interface is made up of nested widgets that can be any type of object. This applies to everything from buttons to padding, and the developer can drastically alter the programme by combining widgets.

Widgets can interact with one another and respond to external changes in the state using built-in functions. Widgets are crucial parts of the user interface that adhere to the design guidelines for Android, iOS, and traditional web apps.

Developers can use Flutter to create bespoke widgets that can be integrated with existing ones. There are no OEM widgets, but Flutter Gallery gives developers their own ready-made widgets — a collection of application examples that demonstrate how to use standard widgets — that look like native Android and iOS design languages (Material and Cupertino).

Flutter also allows developers to see widgets in a reactive fashion. Flutter isn’t the first to do this, but it is the first mobile SDK that does so without the use of a JavaScript bridge.

Dart also has a repository of software packages that can be used to extend the functionality of apps. For example, it provides a number of packages that make it easier for developers to connect to Firebase and build serverless applications. Another package grants access to the Redux data warehouse or makes platform services and equipment, such as cameras, more accessible.

Benefits of Flutter

Developers aren’t limited to a single cross-platform mobile framework when it comes to creating apps. In fact, while the majority of developers (42 per cent) prefer React Native, Flutter usage in 2020 (39 per cent) has increased significantly from Flutter usage in 2019. (30 per cent).
Let’s take a closer look at why developing Flutter applications can be a better option.

1. Quick code development

Flutter’s founders sought to create a technology that would allow them to quickly deliver a high-performing, cross-platform mobile app. This is made possible by the following features:

Hot reload

Flutter’s hot reloading helps developers save time by allowing them to view the changes they’ve made in real-time. This feature allows developers to be much more efficient and productive. Hot reload in Flutter is superior to similar capabilities in competitors. It enables the developer to pause code execution, make changes, and resume the code from the same location. This significantly accelerates development and allows for greater experimentation.


Flutter’s ability to employ pre-made widgets is one of its most appealing features. As a result, Flutter provides a consistent development and design model. Widgets are Google-based, which means they have higher code quality and outperform other open-source frameworks. They save developers’ time like no other framework because most of them are incredibly flexible. Flutter widgets, in addition to the core layout widgets, follow both the Material and Cupertino styles, which is a great benefit.

Minimal code and access to native features

Flutter allows developers to use Dart, which is compiled straight into the ARM code of mobile devices and helps applications not only run faster but also launch faster.
Flutter’s third-party integrations and native codebase make life easier for developers. Flutter allows developers to use native functionality.
That is what allows for speedy code creation, making the entire process faster, easier, and less stressful.


2. Great UI

Beautiful, custom design

Skia, the open-source, high-performance graphics engine utilised by Adobe, Chrome, and Amazon Kindle, is the most powerful feature of Flutter. Flutter enables users to create apps with bespoke designs that look great on both iOS and Android devices. Unlike its competitors, Flutter applications do not face the danger of UI problems when the programme is updated.

Same business logic and UI

Possibility Flutter allows developers to create a seamless experience across Android and Apple devices by sharing the UI and business logic. This is especially significant for brands that have a distinct corporate style.

UI customization potential

Flutter’s ability to personalise anything you see on screen, regardless of how complex the element is, is a significant plus. The effort required is far less than that necessary for developing software for native systems.

Why Choose Flutter on Your Next Project


Platform stability, performance, a guarantee of successful support, and technological and product improvement are all factors that are extremely important to the business. Any issues or flaws in any of these areas can result in hazards, such as direct and indirect financial losses.

With this in mind, Flutter reduces your company’s risk due to the following factors:

1. The best in class (cross-platform) performance and resource consumption

2. Better developer productivity

3. Quicker time to market

4. Low-cost app development


As you can see, Flutter is one of the most cutting-edge mobile technologies available today. Flutter is a wonderful alternative for organisations wishing to create apps for both iOS and Android. Flutter is also the ideal solution if you’re looking for apps with a great user interface and fast performance. Flutter is not a universal remedy for everything, but it is a 100% promising framework, considering the breadth of coverage and speed of implementation.


The blog concludes here but you can always find us at Nullclass.com to ask anything about source code, Kava and Kotlin app development and check out courses focused on app development in real time.

Have a nice day.


November 10, 2021

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