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Does Flutter Let You Design UI/UX For Your App?

Written by Jayla Martin
Last modified Jan. 28 2022

If your business website doesn’t have an attention-grabbing design, you miss out on potential customers every day. Whether it is a website or app, it should be convenient enough for your audience to browse.


The design and functionality of your website should entice visitors to stay on your site. As a result, businesses are constantly investing in enhancing their user experience. Among various designing platforms, flutter is the fastest growing in the market.

Many people aren’t aware that besides building cross-platform apps, flutter ensures UI/UX design looks flawless and consistent across multiple devices.

This article covers all the essential aspects of designing with flutter to help you design your user interface effectively and quickly.

Table of Contents


  • Google's Flutter is an open-source user interface software development kit. From a single codebase, it's possible to create apps for Android, iOS, Linux, Mac, Windows, Google Fuchsia, and the web. You can develop applications for multiple platforms by writing a single project with only minor modifications.
  • Besides developing cross-platform apps, flutter facilitates UI/UX design. Flutter provides attractive and customizable widgets that enhance the look and feel of flutter apps.

What Is Flutter?

Flutter has evolved into an industry-leading framework for creating engaging mobile apps. Flutter allows you to quickly create visually appealing apps for operating systems, desktop computers, and the web from a single codebase. Google actively promotes and uses it, and it will become widely used shortly.

flutter homepage
Source: flutter.dev

The components of Flutter include:

  • Dart (programming language)
  • Flutter Engine
  • A rendering support layer
  • Foundation Library (for fundamental app operations)
  • Widgets (app’s visual blocks)

The main goal of Flutter is to provide a framework that allows you to create apps that look and feel great on any platform while using a single codebase.

What Are The Primary Components Of Flutter?

Before developing an app or starting a design, you have to learn the basics of flutter. Here is a list of primary components of Flutter:

flutter architecture
Source: royex.ae


Flutter provides a Shell that hosts the Dart VM at the platform level. The Shell is platform-specific, providing access to native platform APIs and facilitating the creation of platform-specific canvas. If you want to use Flutter as a library rather than hosting and running an app, there is also an embedded API.


Engine C and C++ code is assembled using LLVM on iOS and the NDK on Android. AOT (Ahead-of-Time) Dart code leads into the ARM library. This library can be found in the runner-up iOS/Android project and created.ipa and.apk files. At that point, the Flutter app's library will be loaded.


The Flutter framework comes with everything you'll need to make an app. Flutter is very similar to other apps that are commonly found on Android or iOS. Material is associated with Android, while Cupertino is associated with iOS.

The Flutter App updates and upgrades the UI at 60 frames per second using GPU. The primary widgets are combined with the Dart widgets already written in conjunction with the Native SDK. The Flutter app also uses native principles to directly contribute widgets to Skia Canvas.


Pipeline As the UI evolves, it is built and rendered on a Skia Canvas. While this has no bearing on how you build an app, it does explain why the Flutter UI is so smooth.

When Dart-based application code interacts with UI-related components, it will continue to run on the CPU and the specialized UI Thread.


Widgets are the fundamental components of the Flutter app. Flutter has no built-in controls or features. It draws the UI output on a Skia Canvas. Because Flutter only has Widgets, the complexity is drastically reduced. Widgets are user interface controls that you can incorporate into your app. Stateless or Stateful Widgets will make up the majority of your app.

You'll have an eternal UI model that you can continue to generate as needed, and Flutter will render it for you. The Flutter framework includes advanced animation, painting, and gesture assistance, with the ability to customize the behavior of any widget you create.

How Flutter Facilitates Designing?

Flutter was built on the foundations of two powerful things: an excellent programming language (Dart) and a fast, high-performance rendering engine (Skia). This was a well-thought-out solution that saved users from having to conduct additional lengthy searches.

UI design
Source: freepik.com

As a result, an excellent platform has been created that assists developers of all skill levels in creating applications that follow appropriate design patterns and best practices. You can forget about standards inconsistencies or technical flaws caused by programming language flaws.

Here are a few reasons why you should choose flutter for designing:

All platforms have the same user interface and business logic

Experts know that virtually every cross-platform framework allows code to be shared between target platforms. However, apart from Flutter, there are no other application frameworks that enable you to share both the UI code and the UI itself.

To render its UI, Flutter does not require any platform-specific UI components. Flutter only requires a canvas to draw on to display the application's UI.

Flutter's rendering style distinguishes the framework from the competition, removing any concerns about UI consistency across platforms. Sharing the UI and business logic, which is possible with Flutter, saves time and effort. In addition, it has no impact on the end product's performance.

Enhances Time-to-Market Speed

Without interacting with a native application counterpart, any 2D-based UI can be implemented in Flutter.

Aside from that, Flutter provides a declarative API for UI development, which significantly improves performance. When it comes to visual adjustments, this is certainly relevant.

Performance of Native Apps is similar

For a good user experience, application performance is critical. Unfortunately, exact figures are difficult to come by. But it's safe to say that Flutter application performance will be indistinguishable from native app performance in the majority of cases. Most importantly, it is even better in complex UI animation scenarios.

Customized, animated user interfaces of any complexity are available

One of Flutter's most powerful features is the ability to customize anything you see on the screen, no matter how complicated it is. It is possible to create a highly customized UI on native platforms.

Flutter adds flexibility and versatility to the process without adding to the workload. Flutter makes it simple to perform shared element transitions, shape/color/shadow manipulations, clipping, and transformations.

Specific Rendering Engine

Flutter uses Skia to render itself onto a canvas provided by the platform. Flutter UI can be launched on virtually any platform, thanks to the engine. To put it another way, you don't have to change the UI to transfer it to a platform. Thus, it greatly simplifies the development process.

Implementation of Simple Platform-Specific Logic

Aside from the user interface, many real-world mobile applications rely on advanced OS-level features like fetching GPS coordinates, Bluetooth communication, sensor data collection, permission handling, credential management, and so on. Many of these are available when developing a Flutter application using a Google-supported ready-to-use plugin.

What Are The Steps To Do UI Design In Flutter?

Now that you know how flutter facilitates the UI designing process, it’s time for you to learn how to do that. Let’s have a quick overview of UI designing in Flutter in the following steps:

Set Your Flutter Environment

For setting up the environment, you will need two software.

  • Flutter SDK, which you have to download.
  • An editor which you have to configure.

You can use Codelab to help you write flutter code in the Android Studio IDE. One of these Codelab teaches you how to write Flutter code in Android Studio. If you'd rather skip the IDE instructions, the code runs in DartPad.

You can use the flutter app design on both mobile and web.

Start a Flutter Project

Figmafy Screenshot2022 02 08at2 26 40AM 8f724430f75b9dd3bf3765ff3a8f9575 800

The steps of the process are:

  • Launch your android studio.
  • Go to the homepage and select Start a new Flutter app. Otherwise, choose File > New > New Flutter Project.
  • Check your installed plugins for Flutter and Dart if any of these don’t work.
  • Select the type of your project and click next.
  • Make sure the Flutter SDK path refers to the SDK's location.
  • Enter the name for your UI design in Flutter and click next.
  • Wait for Android Studio to install the SDK and create the flutter UI design project after finishing.

Build The Main UI Design In Flutter

In this step, modify the default sample app. The goal is to create a friendly chat, a simple, highly configurable chat app with the following features using Flutter:

  • The app shows real-time text messages.
  • Users can type a message in a text string and send it by pressing the Return key or the Send button.
  • The user interface is available for Android and iOS devices and the web.

Add A Message-Creation User Interface

A soft keyboard appears when you click the text field on a device. By typing a non-empty string and pressing the Return key on the soft keyboard, users can send chat messages. Users can also press the graphical Send button next to the input field to send their typed messages.

The UI for creating messages is currently at the top of the chat screen. Next, add an interactive text field using StatefulWidget.

Debug Your App

You can debug your app by using IDE directly to specify the breakpoints. You can also use Dart DevTools for debugging.

Add User Interface To Display Messages

In the app, specify the area where chat messages will be displayed. Implement chat message lists using multiple widgets.

Animate Your UI Design App

You can insert animation into your widgets to improve the flexibility and responsiveness of your app's user experience.

Flutter animations are contained in Animation objects, which have a typed value and a status. An animation object can be attached to a widget, or you can listen for changes to the animation object. The framework can change the widget’s appearance and restore the widget tree based on the animation object's attributes.

Final Touch

You can choose to add more sophisticated details to your app design, such as device customization options.

Wrapping Up

Flutter is the most efficient way to create a high-performing cross-platform mobile app. However, it is only a matter of time before futter is recognized as the ultimate cross-platform UI framework.

However, if you are new to designing and looking for a reliable solution to convert your figma designs to flutter, go for FigmaFy. As a development company, our main goal is to assist other businesses in outsourcing their web development tasks, regardless of the design tool they use.

We’re a passionate bunch of UI designers and web developers with over 5 years of experience in Figma and web development.

Over the years, we have accumulated the knowledge, experience, and expertise it requires to convert your Figma design into clean and bug-free Flutter codes and bring it to life in the form of a fully functional application.

So, what are you waiting for? Contact us today and get a free quote!

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