FoodDelivery+ Mobile App

Food Delivery Mobile App

Project Overview

Developed a feature-rich food delivery mobile application using React Native that connects customers with local restaurants. The app handles real-time order tracking, secure payments, and provides an exceptional user experience across both iOS and Android platforms.

The Challenge

The client wanted to compete with major food delivery services by offering:

  • Superior user experience with smooth animations
  • Real-time order tracking with live map updates
  • Complex restaurant filtering and search
  • Offline functionality for poor connectivity areas
  • Support for multiple payment methods
  • Scalable architecture for rapid growth

Technical Solution

Mobile Architecture

  • Cross-Platform: React Native with platform-specific optimizations
  • State Management: Redux with Redux Persist for offline support
  • Real-time Updates: WebSocket connections for live tracking
  • Maps Integration: Google Maps for Android, Apple Maps for iOS
  • Performance: Native modules for critical operations

Key Features

  1. Smart Restaurant Discovery

    • AI-powered recommendations
    • Multi-criteria filtering
    • Voice search integration
    • Saved preferences

  2. Real-time Order Tracking

    • Live GPS tracking
    • Push notifications at each stage
    • Estimated delivery time updates
    • In-app chat with delivery partner

  3. Seamless Payments

    • Multiple payment gateways
    • Saved payment methods
    • Split bill functionality
    • Automatic refunds

  4. Offline Mode

    • Browse cached restaurants
    • View order history
    • Save favorite items
    • Queue orders for later

Technologies Used

  • Mobile Framework: React Native 0.72
  • Navigation: React Navigation 6
  • State Management: Redux, Redux Toolkit, Redux Persist
  • Real-time: Socket.io-client, WebRTC
  • Maps: react-native-maps, Mapbox
  • Payments: Stripe, Razorpay SDKs
  • Analytics: Firebase Analytics, Mixpanel
  • Backend: Node.js, GraphQL, PostgreSQL

Performance Optimizations

Lazy Loading Implementation

// Virtualized restaurant list for smooth scrolling
const RestaurantList = () => {
  const renderItem = useCallback(({ item }) => (
    <RestaurantCard
      restaurant={item}
      onPress={() => navigateToDetails(item.id)}
    />
  ), []);

  return (
    <FlatList
      data={restaurants}
      renderItem={renderItem}
      keyExtractor={item => item.id}
      getItemLayout={getItemLayout}
      removeClippedSubviews={true}
      maxToRenderPerBatch={10}
      windowSize={10}
      initialNumToRender={5}
    />
  );
};

Real-time Order Tracking

// Live location updates with battery optimization
class DeliveryTracker {
  startTracking(orderId) {
    this.socket = io(SOCKET_URL);
    
    // Subscribe to order updates
    this.socket.on(`order:${orderId}`, (update) => {
      this.updateOrderStatus(update);
      this.updateMapMarker(update.location);
      this.updateETA(update.estimatedTime);
    });
    
    // Request location updates with adaptive frequency
    this.locationSubscription = Geolocation.watchPosition(
      (position) => this.handleLocationUpdate(position),
      (error) => this.handleLocationError(error),
      {
        enableHighAccuracy: true,
        distanceFilter: 10,
        interval: 5000,
        fastestInterval: 2000
      }
    );
  }
}

Native Module Integration

// iOS native module for haptic feedback
@implementation HapticFeedback
RCT_EXPORT_MODULE();

RCT_EXPORT_METHOD(impact:(NSString *)style) {
  dispatch_async(dispatch_get_main_queue(), ^{
    UIImpactFeedbackGenerator *generator;
    
    if ([style isEqualToString:@"light"]) {
      generator = [[UIImpactFeedbackGenerator alloc] 
        initWithStyle:UIImpactFeedbackStyleLight];
    } else if ([style isEqualToString:@"medium"]) {
      generator = [[UIImpactFeedbackGenerator alloc] 
        initWithStyle:UIImpactFeedbackStyleMedium];
    }
    
    [generator prepare];
    [generator impactOccurred];
  });
}
@end

Results

  • 📱 100K+ active users across iOS and Android
  • ⭐ 4.8 rating on App Store and Google Play
  • 🚀 60% faster than competitor apps
  • 📈 200% growth in first 6 months
  • 💰 $5M+ GMV processed monthly

User Experience Highlights

  1. App Launch: Cold start under 2 seconds
  2. Search: Instant results with smart caching
  3. Animations: 60 FPS smooth transitions
  4. Battery: Optimized location tracking
  5. Accessibility: Full VoiceOver/TalkBack support

Security Features

  • Biometric authentication
  • Encrypted local storage
  • Certificate pinning
  • Secure payment tokenization
  • GDPR compliant data handling

Client Testimonial

“Surendra delivered a world-class mobile app that exceeded our expectations. The performance is incredible, and our users love the smooth experience. We’ve seen tremendous growth since launch.”

— Founder & CEO

App Store Optimization

  • Achieved 40% organic install rate
  • A/B tested screenshots and descriptions
  • Localized for 10 languages
  • Regular updates with feature releases

This project demonstrates my ability to build high-performance, scalable mobile applications that compete with industry leaders while maintaining excellent user experience across platforms.

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