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January 10, 20267 min readBuilding UI for

Building UI for Humanitarian Aid: Providing Relief

R
Replay Team
Developer Advocates

TL;DR: This article explores how Replay, a video-to-code engine, can drastically accelerate the development of user interfaces for humanitarian aid applications by reconstructing working UI from screen recordings of existing systems or mockups.

The clock is ticking. In humanitarian crises, every second counts. Building effective UI for aid distribution, resource management, and communication is paramount. However, traditional UI development can be slow and resource-intensive – a luxury often unavailable in rapidly evolving disaster scenarios. Imagine needing to quickly deploy a system to track displaced persons, manage medical supplies, or coordinate volunteer efforts. Can you afford weeks of coding from scratch?

Replay changes the game.

From Video to Working UI: Behavior-Driven Reconstruction#

The traditional approach to building UI often involves wireframes, mockups, and iterative coding. This process, while valuable, can be significantly accelerated. What if you could simply record a video of the desired UI behavior – perhaps a walkthrough of an existing system or a demonstration of a new workflow – and have that video automatically translated into functional code?

That's the power of Replay. Unlike screenshot-to-code tools that merely capture visual elements, Replay leverages Gemini to analyze video, understanding the intent behind user actions. This "Behavior-Driven Reconstruction" allows for the creation of more robust and adaptable UI, especially crucial in the fluid and unpredictable context of humanitarian aid.

Understanding Behavior-Driven Reconstruction#

Replay interprets video as the source of truth. It analyzes user interactions, button clicks, form submissions, and navigation patterns to infer the underlying logic and generate corresponding code. This approach is particularly beneficial for:

  • Rapid Prototyping: Quickly create functional prototypes from video demonstrations.
  • Reverse Engineering: Reconstruct UI from recordings of existing, potentially undocumented, systems.
  • Workflow Automation: Automate the creation of UI based on demonstrated workflows.

Key Features for Humanitarian Aid UI Development#

Replay offers several features specifically valuable for building UI in the humanitarian sector:

  • Multi-page Generation: Construct entire applications from a single, comprehensive video recording. This is critical for complex workflows involving multiple screens and interactions.
  • Supabase Integration: Seamlessly integrate with Supabase for backend data management, authentication, and real-time updates. This is crucial for building scalable and secure aid management systems.
  • Style Injection: Customize the generated UI with custom CSS or styling libraries to match existing branding or design guidelines.
  • Product Flow Maps: Visualize the user flow and interaction patterns extracted from the video, providing valuable insights for UI optimization.

Replay vs. Traditional UI Development Tools#

FeatureTraditional CodingScreenshot-to-CodeReplay
Input MethodManual CodingStatic ImagesVideo Recording
Behavior AnalysisManual ImplementationLimitedComprehensive
Code GenerationManualBasic HTML/CSSFunctional Components (React, Vue, etc.)
Prototyping SpeedSlowFasterFastest
Understanding User IntentRequires Detailed SpecificationsLimitedHigh
ScalabilityDependent on Code QualityLimitedSupports Backend Integration (Supabase)

Building a Disaster Relief Dashboard with Replay: A Practical Example#

Let's imagine we need to build a UI for a disaster relief dashboard. We can use Replay to quickly generate the core components.

Step 1: Record a Demonstration Video#

Create a video demonstrating the desired functionality of the dashboard. This could involve:

  1. Navigating through different sections (e.g., "Resource Tracking," "Volunteer Management," "Emergency Contacts").
  2. Filtering and sorting data (e.g., displaying available medical supplies by location).
  3. Submitting forms (e.g., registering volunteers, requesting supplies).
  4. Interacting with maps (e.g., visualizing affected areas).

💡 Pro Tip: Speak clearly and deliberately during the recording, highlighting the purpose of each action. This helps Replay accurately interpret your intent.

Step 2: Upload and Process the Video in Replay#

Upload the video to Replay. The engine will analyze the video and generate a working UI based on the demonstrated behavior. This process typically takes a few minutes, depending on the length and complexity of the video.

Step 3: Review and Customize the Generated Code#

Once the code is generated, you can review and customize it as needed. Replay typically generates React or Vue components, which can be easily integrated into existing projects.

Here's an example of code Replay might generate for a component displaying available medical supplies:

typescript
// Generated by Replay import React, { useState, useEffect } from 'react'; import supabase from './supabaseClient'; // Assuming Supabase is used for data storage interface SupplyItem { id: number; name: string; quantity: number; location: string; } const MedicalSupplies: React.FC = () => { const [supplies, setSupplies] = useState<SupplyItem[]>([]); useEffect(() => { const fetchSupplies = async () => { const { data, error } = await supabase .from('medical_supplies') .select('*'); if (error) { console.error('Error fetching supplies:', error); } else { setSupplies(data || []); } }; fetchSupplies(); }, []); return ( <div> <h2>Available Medical Supplies</h2> <ul> {supplies.map(supply => ( <li key={supply.id}> {supply.name} - Quantity: {supply.quantity} - Location: {supply.location} </li> ))} </ul> </div> ); }; export default MedicalSupplies;

📝 Note: This code snippet is a simplified example. Replay can generate more complex components with advanced features like filtering, sorting, and pagination.

Step 4: Integrate with Supabase (Optional)#

To connect the UI to a backend database, you can leverage Replay's Supabase integration. This allows you to easily store and retrieve data, manage user authentication, and implement real-time updates.

⚠️ Warning: Ensure you have properly configured your Supabase project and have the necessary credentials before integrating with Replay.

For instance, the code above already assumes a Supabase client

text
supabase
is set up. The generated code will automatically include the necessary data fetching logic based on the demonstrated behavior in the video. If you showed how to add a new supply item via a form, Replay would generate the necessary
text
POST
request code to update the Supabase database.

Step 5: Style Injection and Customization#

Use CSS or styling libraries to customize the look and feel of the UI. Replay allows you to inject custom styles to match your branding or design guidelines.

For example:

css
/* Custom styles for the MedicalSupplies component */ .medical-supplies { background-color: #f0f0f0; padding: 20px; border-radius: 5px; } .medical-supplies h2 { color: #333; margin-bottom: 10px; } .medical-supplies ul { list-style: none; padding: 0; } .medical-supplies li { margin-bottom: 5px; }

The Benefits of Replay for Humanitarian Organizations#

  • Speed and Efficiency: Rapidly prototype and deploy UI for critical applications.
  • Reduced Development Costs: Minimize the need for extensive manual coding.
  • Improved Collaboration: Easily share and iterate on UI designs using video demonstrations.
  • Enhanced Accessibility: Create UI that is accessible to users with varying levels of technical expertise.
  • Flexibility and Adaptability: Quickly adapt UI to changing needs and requirements.

Frequently Asked Questions#

Is Replay free to use?#

Replay offers a free tier with limited usage. Paid plans are available for more extensive use and advanced features. Check the Replay pricing page for details.

How is Replay different from v0.dev?#

While both Replay and v0.dev aim to accelerate UI development, they differ in their approach. v0.dev primarily relies on text prompts to generate code, whereas Replay analyzes video recordings of user behavior. Replay's behavior-driven reconstruction allows for a more nuanced understanding of user intent and the generation of more functional and adaptable UI. Essentially, v0.dev creates from text description, Replay creates from demonstration.

What types of applications can I build with Replay?#

Replay can be used to build a wide range of applications, including:

  • Dashboards
  • Mobile apps
  • Web applications
  • E-commerce platforms
  • Internal tools

What front-end frameworks are supported?#

Currently, Replay primarily generates React and Vue components. Support for other frameworks may be added in the future.

How secure is Replay?#

Replay employs industry-standard security measures to protect user data. Video recordings are securely stored and processed.


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