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Mastering Flutter UI Design Essential Guidelines for Stunning App Interfaces

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August 4, 2023


August 4, 2023

Flutter is the future! Do you agree with that?

Flutter, a modern application development framework, has completely transformed how developers design beautiful, responsive user interfaces.

It is a cross-platform, high-performance mobile app development framework allowing programmers to create Android and iOS apps. 

Google created Flutter, which is based on the Dart programming language. It is highly optimised for creating visually appealing and extremely effective mobile apps.

Developing mobile applications with the Flutter framework requires a detailed knowledge of  Flutter UI designs and their implementation guidelines. Flutter toolkit provides a comprehensive set of tools and widgets for creating stunning, responsive, and exciting user interfaces for mobile applications.

In this article, we will learn about Flutter UI design and the guidelines for creating stunning user interfaces with Flutter.

What is Flutter UI design?

Flutter UI Design is the graphical and interactive components of a Flutter application. These components include layouts, colours, widgets, typography, and animation effects. 

Flutter UI includes many UI widgets that can be customised to create visually attractive and responsive user interfaces. It also includes many animation and gesture graphics capabilities that can be used to improve the interactivity and aesthetic appeal of the UI.

What are the essential components of Flutter architecture?

It would help if you first mastered the basics of Flutter before tackling Flutter UI design. 

Let's learn about the Flutter architecture.


Everything you need to create an app is included in the Flutter framework. In Flutter, the Cupertino widget is linked to Android, whereas the Material widget is linked to iOS.

The Flutter App uses the GPU to update and improve the UI at 60 frames per second. The primary widgets combined with Dart were created in collaboration with the Native SDK. The Flutter app also uses native regulations to directly add widgets to Skia Canvas.

You'll have a permanent UI model you can modify, and Flutter will render it. Flutter provides powerful animation, gesture assistance, and painting and the capacity to customise the behavior of any widget you build.


Flutter offers a Shell that hosts the Dart VM at the platform level. The Shell is platform-specific, with access to native APIs and the ability to create a platform-specific canvas. Additionally, a built-in API allows you to use Flutter as a library rather than hosting and managing an application.


The Flutter application is built on widgets. Flutter draws the UI output on a Skia Canvas. Flutter's complexity is significantly reduced because it only includes Widgets. Widgets are user interface controls that you can add to your program. Most of your apps will be made up of Stateful or Stateless Widgets.


The pipeline is unrelated to how an app is developed, yet it may help explain why the Flutter UI is so flexible. When Dart-based application code interacts with UI-related components, the CPU and the specialised UI Thread continue to run.


On iOS, LLVM, and Android, NDK is used to assemble engine C and C++ code. AOT (Ahead-of-Time) Dart code feeds into the ARM library. The developed .ipa and .apk files and the second-place iOS/Android project contain this library. The library for the Flutter app will then be loaded.

👉Also read- Flutter App Architecture: How to choose the best one for your app development?

Guidelines for creating beautiful Flutter UI design

Flutter enables developers to create stunning and captivating user interfaces (UI) that work flawlessly on Android, iOS, Web, and Desktop platforms due to its flexible widgets and fluid animations. 

Here are some guidelines for Flutter developers on how to make stunning UI with Flutter.

Use Material Design guidelines

Designing stunning, attractive user interfaces can be made more accessible using Material Design, the fundamental design principles that Google and the Android operating system adhere to. 

You can ensure that your UI design is recognizable and consistent to your users by adhering to the Material Design principles, which can enhance their overall experience.

Utilize the Material components that Flutter design offers, such as app bars, cards, bottom navigation bars, and buttons, to make your UI design stand out.

Pay attention to colours

Colours can arouse emotions and set the tone for your UI design. Flutter's vast colour palette contains nearly every colour on the colour wheel. Mix and match these colours to create a palette that reflects your application's or brand's personality. Your UI design can benefit from the depth and dimension that gradients and shadows can give.

Use typography

Typography is essential to user interface design. It can effectively communicate information and establish a visual hierarchy. With Flutter, you can completely personalise the app's UI typography. To apply various styles to text elements, including headings, subheadings, body text, and captions in Flutter, use the TextStyle class.

Use custom widgets

Flutter's custom widgets are a potent tool for building UI components tailored to your requirements. You can reuse custom widgets you create to maintain a unified UI design across your application. Create unique, customizable, and reusable widgets with Flutter's design features.

Use animations

Animations are often used to engage users quickly. An enormous selection of animation widgets is available in Flutter design. You have many options, including AnimatedContainer, AnimatedOpacity, and AnimatedPadding

These widgets allow you to make slick, undetectable animations that improve user experience. The AnimationController class can make more intricate animations like keyframes and transition animations.


Use responsive designs

Responsiveness is essential because the software must work on various screens and devices. Since every Flutter design is responsive, you can create breathable user interfaces for many screen sizes. Flutter design can be used to create responsive UI designs that function flawlessly on various devices.

Consistency in design

Users can navigate your application more simply and understand how it works when the UI is consistent. Using the same font styles, design components, and colours throughout your application will help you show consistency in your UI design. To set a consistent navigation experience, you can also use widgets like BottomNavigationBar and Drawer.

Flutter UI designing best practices 

These practices will enable you to offer an engaging and scalable app user experience regardless of the niche while maximising the framework's capabilities in Flutter app development. Here, we briefly mention these practices.

  • As often as feasible, use stateless widgets. They are easy to test and manage because they are straightforward and have fewer adverse effects.
  • Keep widgets compact and reusable to increase code modularity and reduce duplication. It is possible to employ composition and inheritance to maximise widget reuse.
  • Use the widget tree to handle the state. Flutter offers a widget tree to manage the state of your app, which keeps your code organised and straightforward to understand.
  • The Business Logic Component (BLoC) pattern can divide business logic and view levels. In the end, this makes code testing and maintenance simpler.
  • Use as few third-party packages as are necessary for your app.
  • Use the dart analyze command line tool to make your code more readable and consistent. The Dart analyzer evaluates your code for common mistakes and formatting difficulties.  
  • You can keep your app responsive and lightweight by using lazy-loading for lists, limiting the number of widgets, and avoiding complex computations on the UI thread.
  • Poor coding often ruins a positive user experience. To boost your app's efficiency, eliminate extraneous loops, swap literals for constants, and create as few objects as possible.
  • Use async and await to increase responsiveness and prevent stopping the UI thread. It's crucial to provide smooth interactions free of performance issues.

The best practices for creating flutter apps listed above can all contribute to ensuring your app is productive, successful, and user-friendly.


Finally, Flutter UI designs are essential to developing high-performance, cross-platform mobile applications with the Flutter framework. Flutter offers a variety of customizable widgets and tools for creating responsive, visually appealing, and engaging user interfaces for mobile applications. 

Using these tools and design principles, developers may create intuitive, visually appealing, and highly performant mobile applications, making them a favorite choice among mobile app developers.

If you wish to make your app development faster, more sophisticated, and effortless, try DhiWise- A new edge mobile and web application development platform for developers.

Its Flutter Builder has everything to make your app development process more effective and effortless, from design to code and UI customization and more.

Find out more about DhiWise features and sign up for free to start developing your dream app. 

Frequently asked questions

Frequently asked questions

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