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January 4, 20267 min readHow to Convert

How to Convert A Figma Mobile App Video Into A React Native Expo Go Application With Replay

R
Replay Team
Developer Advocates

TL;DR: Learn how to leverage Replay to transform a Figma mobile app video into a functional React Native Expo Go application, bypassing traditional design-to-code workflows.

From Figma Design to React Native App: A Replay Story#

Creating a mobile application often involves a tedious handoff process between designers and developers. Figma designs need to be translated into code, a process prone to errors and misinterpretations. But what if you could simply show a video of the desired app behavior and have the code generated for you? That's the power of Replay.

Replay utilizes video as the source of truth, employing Behavior-Driven Reconstruction to understand user intent and generate functional UI code. This approach drastically reduces the time and effort required to bring your mobile app ideas to life. In this guide, we'll walk through how to convert a Figma mobile app video into a React Native Expo Go application using Replay.

The Problem: The Traditional Design-to-Code Bottleneck#

Traditional methods of converting designs into code are often fraught with challenges:

  • Misinterpretation: Designers and developers may have different understandings of the intended user experience.
  • Manual Translation: Converting design specs into code is a manual, time-consuming process.
  • Inconsistencies: Discrepancies can arise between the design and the final implementation.
  • Maintenance Overhead: Keeping the codebase synchronized with design changes requires ongoing effort.

These issues contribute to project delays, increased costs, and potential frustration for both designers and developers.

The Solution: Behavior-Driven Code Generation with Replay#

Replay offers a revolutionary approach by analyzing video recordings of the desired application behavior. This allows Replay to understand the underlying user intent and generate functional code that accurately reflects the intended experience.

FeatureScreenshot-to-CodeTraditional Design-to-CodeReplay
InputScreenshotsDesign SpecsVideo
Behavior AnalysisLimited
Code AccuracyLowerMediumHigh
Iteration SpeedSlowerMediumFaster
Multi-Page SupportLimitedManual
Supabase IntegrationManual

Preparing Your Figma Mobile App Video#

Before using Replay, you'll need to create a video recording of your Figma mobile app design in action. Here are some tips for creating an effective video:

  • Showcase Key Flows: Focus on demonstrating the core user flows and interactions within your app.
  • Clear Navigation: Ensure that the navigation between screens is clear and easy to follow.
  • Highlight Interactions: Clearly demonstrate button presses, form inputs, and other interactive elements.
  • Consistent Speed: Maintain a consistent pace throughout the recording to avoid confusing the AI.
  • High Resolution: Use the highest possible resolution for optimal analysis.

Step-by-Step Guide: Converting Your Figma Video to a React Native App#

Here's how to use Replay to convert your Figma mobile app video into a functional React Native Expo Go application:

Step 1: Upload Your Video to Replay#

  1. Create an account or log in to Replay.
  2. Click the "Upload Video" button and select your Figma mobile app video file.
  3. Replay will begin processing the video and analyzing the user behavior.

📝 Note: Processing time may vary depending on the length and complexity of your video.

Step 2: Review and Refine the Generated Code#

Once the processing is complete, Replay will present you with the generated React Native code.

  1. Review the code to ensure that it accurately reflects the intended behavior.
  2. Use Replay's editing tools to make any necessary adjustments. You can modify styles, component structure, and event handlers directly within the Replay interface.

💡 Pro Tip: Pay close attention to the generated component structure and styling. Refine these aspects to match your desired aesthetic.

Step 3: Integrate with Supabase (Optional)#

If your Figma design includes data interactions, you can seamlessly integrate with Supabase.

  1. Configure your Supabase connection within Replay.
  2. Replay will automatically generate the necessary API calls and data bindings to connect your app to your Supabase database.
typescript
// Example of a generated Supabase function import { supabase } from './supabaseClient'; const fetchItems = async () => { const { data, error } = await supabase .from('items') .select('*'); if (error) { console.error('Error fetching items:', error); return []; } return data; };

Step 4: Download and Run Your React Native Expo Go Application#

  1. Download the generated React Native project from Replay.
  2. Install the necessary dependencies using
    text
    npm install
    or
    text
    yarn install
    .
  3. Start the Expo development server using
    text
    expo start
    .
  4. Use the Expo Go app on your mobile device to scan the QR code and run your application.

⚠️ Warning: Ensure that you have Expo CLI installed globally on your machine before running

text
expo start
.

Benefits of Using Replay#

  • Increased Speed: Drastically reduce the time required to convert designs into code.
  • Improved Accuracy: Generate code that accurately reflects the intended user behavior.
  • Reduced Errors: Minimize the risk of misinterpretations and inconsistencies.
  • Enhanced Collaboration: Facilitate seamless collaboration between designers and developers.
  • Simplified Maintenance: Easily update the codebase to reflect design changes.

Style Injection: Making Your App Look Just Right#

Replay allows for style injection, meaning you can bring your existing CSS or styling libraries into the generated code. This ensures consistency with your brand and design system.

For example, you can inject Tailwind CSS classes directly into the generated components. Replay understands and applies these styles, resulting in a visually polished application.

javascript
// Example of a styled component with injected Tailwind CSS classes const StyledButton = styled.TouchableOpacity` background-color: #4F46E5; color: white; padding: 12px 24px; border-radius: 6px; font-weight: bold; text-align: center; margin-top: 16px; `;

Product Flow Maps: Visualizing User Journeys#

Replay automatically generates product flow maps from your video. These maps visually represent the user journeys within your application, providing valuable insights into user behavior and potential areas for improvement.

These flow maps can be used to:

  • Identify bottlenecks in the user experience.
  • Optimize navigation paths.
  • Improve conversion rates.

Frequently Asked Questions#

Is Replay free to use?#

Replay offers a free tier with limited features. Paid plans are available for more advanced functionality and usage.

How is Replay different from v0.dev?#

While both tools aim to generate code, Replay analyzes video of application behavior, understanding user intent. v0.dev primarily relies on text prompts and existing codebases. Replay's behavior-driven approach results in more accurate and functional code generation.

What types of videos can Replay process?#

Replay can process videos of various screen recordings, including Figma prototypes, mobile app demos, and web application walkthroughs.

What frameworks does Replay support?#

Currently, Replay supports React Native, React, and Vue.js. Support for additional frameworks is planned for future releases.

How accurate is the generated code?#

Replay's code generation accuracy is generally high, but the quality of the input video plays a significant role. Clear, well-defined videos will result in more accurate code.

Can I customize the generated code?#

Yes, Replay provides tools for editing and customizing the generated code. You can modify styles, component structure, and event handlers to meet your specific needs.


Ready to try behavior-driven code generation? Get started with Replay - transform any video into working code in seconds.

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