How to Recreate a React Native Navigation Bar from Video with Replay in 2026

TL;DR: Recreate a fully functional React Native navigation bar from a video recording using Replay's behavior-driven code generation, leveraging its multi-page analysis and style injection capabilities.

The promise of AI-powered code generation has been around for years, but the reality often falls short. Many tools generate code snippets or static UI based on screenshots, missing the crucial element of user interaction and behavior. This is where Replay changes the game. We don't just see pixels; we understand intent.

The Problem: From Video to Usable Code#

Imagine you've recorded a user flow demonstrating a complex navigation bar in a React Native application. Manually recreating this navigation bar, pixel-perfect and with all the intended interactions, is a tedious and time-consuming process. Screenshot-to-code tools might offer a static representation, but they fail to capture the dynamic behavior and underlying logic.

The Solution: Behavior-Driven Reconstruction with Replay#

Replay utilizes advanced video analysis and Gemini's powerful reasoning to reconstruct working UI directly from screen recordings. Our "Behavior-Driven Reconstruction" approach treats the video as the source of truth, extracting not just visual elements but also the user's intent behind each interaction. This allows Replay to generate code that accurately reflects the intended functionality and user experience.

Key Features for Navigation Bar Recreation#

• •Multi-page Generation: Replay can analyze multi-page flows, understanding how the navigation bar behaves across different screens and contexts.
• •Style Injection: Replay identifies and extracts styling information from the video, allowing you to inject consistent styles into the generated code.
• •Supabase Integration: Seamlessly integrate your generated navigation bar with your existing Supabase backend.
• •Product Flow Maps: Visualize the user flow captured in the video, providing a clear understanding of the navigation logic.

Replay vs. Traditional Methods#

Let's compare Replay to traditional methods and screenshot-to-code tools:

Step-by-Step Guide: Recreating a React Native Navigation Bar from Video#

Here's how you can recreate a React Native navigation bar from a video using Replay:

Step 1: Upload Your Video#

Start by uploading the video recording of the React Native application's navigation bar interaction to the Replay platform. Ensure the video clearly captures all the intended behaviors and transitions.

Step 2: Replay Analyzes the Video#

Replay's AI engine analyzes the video, identifying UI elements, user interactions (taps, swipes, etc.), and state changes. This process leverages Gemini to understand the intent behind each action.

💡 Pro Tip: For best results, ensure the video quality is high and the navigation bar interactions are clearly visible.

Step 3: Code Generation and Customization#

Replay generates React Native code for the navigation bar, including components, styles, and event handlers. You can then customize the generated code to fit your specific project requirements.

Here's a sample of the generated code:

typescript
// Generated by Replay
import React from 'react';
import { View, Text, TouchableOpacity, StyleSheet } from 'react-native';

interface NavigationBarProps {
  currentPage: string;
  onNavigate: (page: string) => void;
}

const NavigationBar: React.FC<NavigationBarProps> = ({ currentPage, onNavigate }) => {
  return (
    <View style={styles.container}>
      <TouchableOpacity onPress={() => onNavigate('Home')}>
        <Text style={[styles.navItem, currentPage === 'Home' && styles.activeNavItem]}>Home</Text>
      </TouchableOpacity>
      <TouchableOpacity onPress={() => onNavigate('Settings')}>
        <Text style={[styles.navItem, currentPage === 'Settings' && styles.activeNavItem]}>Settings</Text>
      </TouchableOpacity>
      <TouchableOpacity onPress={() => onNavigate('Profile')}>
        <Text style={[styles.navItem, currentPage === 'Profile' && styles.activeNavItem]}>Profile</Text>
      </TouchableOpacity>
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flexDirection: 'row',
    justifyContent: 'space-around',
    backgroundColor: '#f0f0f0',
    paddingVertical: 15,
  },
  navItem: {
    fontSize: 16,
    fontWeight: 'bold',
    color: '#333',
  },
  activeNavItem: {
    color: '#007bff',
  },
});

export default NavigationBar;

Step 4: Style Injection and Integration#

Replay automatically extracts styling information from the video and injects it into the generated code. This ensures visual consistency with the original design. You can further refine the styles using CSS or React Native styling.

📝 Note: Replay's style injection feature supports a wide range of styling techniques, including CSS-in-JS libraries like Styled Components and Emotion.

Step 5: Integrate with Supabase (Optional)#

If your application uses Supabase, you can seamlessly integrate the generated navigation bar with your backend. Replay can generate code that interacts with your Supabase database, allowing you to fetch and display dynamic data in the navigation bar.

typescript
// Example of Supabase integration
import { createClient } from '@supabase/supabase-js';

const supabaseUrl = 'YOUR_SUPABASE_URL';
const supabaseKey = 'YOUR_SUPABASE_ANON_KEY';
const supabase = createClient(supabaseUrl, supabaseKey);

const fetchUserProfile = async () => {
  const { data, error } = await supabase
    .from('profiles')
    .select('*')
    .eq('id', userId);

  if (error) {
    console.error('Error fetching profile:', error);
    return null;
  }

  return data ? data[0] : null;
};

Step 6: Test and Refine#

Thoroughly test the generated navigation bar to ensure it functions as expected. Use Replay's Product Flow maps to visualize the user flow and identify any potential issues. Refine the code and styles as needed to achieve the desired result.

⚠️ Warning: Always test the generated code in a production-like environment to ensure compatibility and performance.

Benefits of Using Replay#

• •Accelerated Development: Replay significantly reduces the time required to recreate complex UI elements.
• •Improved Accuracy: Behavior-Driven Reconstruction ensures the generated code accurately reflects the intended functionality.
• •Enhanced Collaboration: Replay facilitates collaboration between designers and developers by providing a shared understanding of user behavior.
• •Reduced Errors: Automated code generation minimizes the risk of human error.

Frequently Asked Questions#

Is Replay free to use?#

Replay offers a free tier with limited features. Paid plans are available for advanced features and higher usage limits. Check our pricing page for the latest details.

How is Replay different from v0.dev?#

While v0.dev focuses on generating UI components based on text prompts, Replay analyzes video recordings to understand user behavior and reconstruct working UI based on actual interactions. Replay excels at capturing dynamic behavior and multi-page flows, offering a more comprehensive solution for recreating complex UI elements.

What types of applications does Replay support?#

Replay supports a wide range of applications, including React Native, React, Vue.js, and more. We are constantly expanding our support to cover more frameworks and platforms.

What if the video quality is poor?#

While Replay can handle some degree of video noise, better video quality leads to more accurate code generation. Ensure your video is well-lit and the UI elements are clearly visible.

Can I edit the generated code?#

Yes, the generated code is fully editable. Replay provides a starting point, but you have complete control over the final result.

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