Case Study: Converting Figma UI to Flutter Code

Figma UI by vanpavlovme 🙌

Introduction

• Overview: This project focused on translating a Banking UI Figma-designed interface into functional Flutter code. Challenges encompassed managing diverse system font sizes, light/dark theme adaptation, micro user interaction animations, adapting complex UI elements, and addressing variations in design elements, especially with custom components while ensuring cross-platform design consistency.
• Objective: To create a robust Flutter codebase faithfully representing the Figma UI, accommodating complexities of custom components, maintaining design consistency, and addressing diverse user preferences across platforms.

Problem Statement

• Different System Font Sizes: Managing font scaling without design compromise.
• Light and Dark Theme Adaptation: Seamless UI transition between themes while ensuring visual consistency.
• Micro User Interaction Animations: Implementing engaging, subtle animations.
• Adapting Complex UI Elements: Accurate translation of intricate design components.
• Addressing Variations in Design Elements: Ensuring consistency, especially with custom components.

Approach

• Methodology: Detailed analysis of Flutter's adaptability for diverse design elements.
• Tools & Techniques: Leveraged responsive design features, animation libraries, and custom widget creation in Flutter.

Implementation

Employed dynamic font sizing methods for legibility by:

• Using Flutter's MediaQuery class to access information about the current device size, enabling me to adapt font sizes based on the available space.
• Using the textScaleFactor property within text widgets as it allows for size adjustment based on the system's font scaling settings.

Configured Flutter's themes for UI consistency by:

• Defining a theme property with the ThemeData object which contains various attributes like background color and text theme for light & dark modes.
• Using Provider for state management so these theme changes can be applied on every screen of the app.

Integrated subtle animations for enhanced UX by:

• Using flutter animated widgets like AnimatedContainer and AnimatedCrossFade that can automatically animate changes in their properties.
• Using AnimationController with widgets like TweenAnimationBuilder and FadeTransition to create more complex animations by defining the animation behavior explicitly.
• Using simple flutter buttons such as ElevatedButton or IconButton to get a micro-interaction when tapped on.

Translated intricate Figma designs accurately into Flutter widgets by:

• Identifying flutter widgets that correspond to Figma design components.
• Using combinations of widgets, nesting them as necessary to replicate complex design layouts accurately.
• Paying attention to details like margins, padding, alignment, and spacing to replicate the design and achieve perfect pixel-level accuracy.

Ensured uniformity, especially with custom components by:

• Using clear and consistent naming for custom components to maintain coherence across the application.
• Defining reusable themes, styles, and text themes for custom components to ensure consistent appearances.
• Validating components in different states (loading, error, success) to ensure consistent behavior and appearance.

Results

• Achieved consistent legibility across devices.
• Seamless UI transitions, maintaining coherence.
• Subtle yet impactful interactions enhancing UX.
• Faithful representation across platforms.
• Consistency maintained, including custom components.

Impact

• User Experience: Improved accessibility, readability, and engagement through meticulous design translation.
• Project Outcome: Successfully provided a versatile Flutter codebase that maintains uniformity across various platforms, encompassing bespoke elements within its design framework.

Visual Representation

Banking UI Walkthrough

Banking UI Walkthrough

Watch a video walkthrough of the Banking App User Interface.





Banking App UI - Google Drive

Banking App UI - Google Drive

View images/screenshots of the Banking App User Interface.





Banking App UI KIT

Banking App UI KIT

Created with Figma by vanpavlovme



Conclusion

• Summary: Successfully managed challenges, delivering a Flutter codebase with design consistency and fidelity.
• Achievements: Enhanced user-centric design by ensuring consistency and accuracy in UI translation.