Kotlin Multiplatform UI Library - Composive¶

The Ultimate Kotlin Multiplatform UI Library for Modern Apps¶

Composive is the most comprehensive Kotlin Multiplatform UI library designed for developers who want to create stunning, responsive applications across all platforms with a single codebase.

Why Choose Composive as Your Kotlin Multiplatform UI Library?¶

🎯 Complete Cross-Platform Solution¶

Composive is the only Kotlin Multiplatform UI library you need:

✅ Android - Native Material 3 components
✅ iOS - Authentic Cupertino design system
✅ Desktop - Windows, macOS, Linux support
✅ Web - Kotlin/JS and Kotlin/Wasm ready

🚀 Unmatched Developer Experience¶

@Composable
fun App() {
    ComposiveTheme {
        // Automatically adapts to each platform!
        // Material 3 on Android, Cupertino on iOS
        ResponsiveLayout()
    }
}

📱 Built for Modern Multi-Platform Development¶

Unlike other Kotlin Multiplatform UI libraries, Composive provides:

Feature	Composive	Other Libraries
Automatic Theme Adaptation	✅ Material 3 + Cupertino	❌ Manual setup required
Responsive Design	✅ Built-in breakpoints	❌ Custom implementation
Zero Configuration	✅ Works out of the box	❌ Complex setup
Platform-Aware Components	✅ Smart defaults	❌ One-size-fits-all
Hot Reload Testing	✅ Desktop window resize	❌ Limited testing

Kotlin Multiplatform UI Library Comparison¶

Composive vs Other Solutions¶

Traditional Approach¶

// ❌ Complex, platform-specific code
when (platform) {
    Android -> MaterialTheme { AndroidUI() }
    iOS -> CupertinoTheme { IOSUI() }
    Desktop -> DesktopTheme { DesktopUI() }
}

Composive Approach¶

// ✅ Simple, unified approach
ComposiveTheme {
    // Automatically platform-appropriate!
    MyApp()
}

Installation via Maven Central¶

Add the following to your build.gradle.kts:

dependencies {
    implementation("io.github.gursimarsingh12:composive-responsive-adaptive:1.0.0")
}

Key Features of This Kotlin Multiplatform UI Library¶

1. Responsive Design System¶

val deviceConfig = rememberDeviceConfiguration()

when (deviceConfig) {
    DeviceConfiguration.MOBILE_PORTRAIT -> SingleColumnLayout()
    DeviceConfiguration.TABLET_LANDSCAPE -> MultiColumnLayout()
    DeviceConfiguration.DESKTOP -> DesktopLayout()
}

2. Platform-Smart Theming¶

// Automatic platform detection
ComposiveTheme {
    // Android → Material 3 automatically
    // iOS → Cupertino automatically  
    // Desktop → Platform-appropriate
    Button("Platform Native") {
        // Styled correctly for each platform
    }
}

3. Adaptive Typography¶

Text(
    text = "Scales Perfectly",
    style = AppTheme.materialTypography.headlineLarge,
    // Automatically adjusts for screen size
    fontWeight = AppTheme.fontWeights.heading
)

Real-World Kotlin Multiplatform UI Examples¶

E-commerce App with Adaptive Grid¶

@Composable
fun ProductGrid() {
    val columns = rememberDeviceConfiguration().getRecommendedColumns()

    LazyVerticalGrid(
        columns = GridCells.Fixed(columns),
        horizontalArrangement = Arrangement.spacedBy(AppTheme.dimensions.cardSpacing)
    ) {
        items(products) { product ->
            ProductCard(product) // Automatically responsive
        }
    }
}

@Composable
fun AdaptiveNavigation() {
    val deviceConfig = rememberDeviceConfiguration()

    when {
        deviceConfig.isMobile() -> NavigationBar { /* Bottom nav */ }
        deviceConfig.isTablet() -> NavigationRail { /* Side nav */ }
        deviceConfig.isDesktop() -> NavigationDrawer { /* Drawer nav */ }
    }
}

Performance Benefits¶

Optimized for Kotlin Multiplatform¶

⚡ Fast Compilation - Shared UI logic reduces build times
📦 Smaller App Size - Single codebase means less duplication
🔧 Easy Maintenance - One place to update UI across all platforms
🧪 Better Testing - Test once, works everywhere

Memory Efficiency¶

Composive is designed for optimal performance:

Lazy Loading - Components load only when needed
Smart Recomposition - Minimal UI updates
Platform Optimization - Native performance on each platform

Migration Guide¶

From Other Kotlin Multiplatform UI Libraries¶

Migrating to Composive is straightforward:

Before (Manual Platform Setup)¶

// Complex multi-platform setup
expect class PlatformTheme() {
    @Composable
    fun ProvideTheme(content: @Composable () -> Unit)
}

// Platform-specific implementations required

After (Composive)¶

// Simple unified approach
ComposiveTheme {
    // Everything just works!
    MyApp()
}

Success Stories¶

Companies Using Composive¶

"Composive reduced our development time by 60% while giving us native-quality UIs on all platforms." - Mobile Development Team

"The best Kotlin Multiplatform UI library we've used. Hot reload testing on desktop is a game-changer." - Senior Android Developer

Getting Started with Composive¶

Community & Support¶

Open Source & Free¶

Composive is completely free and open-source:

📜 MIT License - Use in any project
🤝 Community Driven - Contributions welcome
🐛 Issue Tracking - Quick bug fixes
📚 Comprehensive Docs - Everything you need

Join the Community¶

GitHub: Star the repository ⭐
Issues: Report bugs or request features
Discussions: Join developer conversations

Frequently Asked Questions¶

Q: Is Composive production-ready?¶

A: Yes! Composive is stable and used in production apps across multiple industries.

Q: Does it work with existing Compose Multiplatform projects?¶

A: Absolutely! You can gradually adopt Composive in existing projects.

Q: What's the learning curve?¶

A: If you know Compose, you already know Composive. The API is intuitive and familiar.

Q: How does it compare to Flutter?¶

A: Composive uses Kotlin and integrates with existing Android/iOS codebases. Native performance with true platform integration.

Next Steps¶

Ready to build amazing cross-platform apps?

Get Started Now → View Examples → API Docs →

Composive - The only Kotlin Multiplatform UI library you'll ever need. 🚀