Android Kotlin Development Skill

Android Kotlin Development

Overview
When to Use
Quick Start
Reference Guides
Best Practices

Overview

Build robust native Android applications using Kotlin with modern architecture patterns, Jetpack libraries, and Compose for declarative UI.

When to Use

Creating native Android applications with best practices
Using Kotlin for type-safe development
Implementing MVVM architecture with Jetpack
Building modern UIs with Jetpack Compose
Integrating with Android platform APIs

Quick Start

Minimal working example:

// Models
data class User(
  val id: String,
  val name: String,
  val email: String,
  val avatarUrl: String? = null
)

data class Item(
  val id: String,
  val title: String,
  val description: String,
  val imageUrl: String? = null,
  val price: Double
)

// API Service with Retrofit
interface ApiService {
  @GET("/users/{id}")
  suspend fun getUser(@Path("id") userId: String): User

  @PUT("/users/{id}")
  suspend fun updateUser(
    @Path("id") userId: String,
    @Body user: User
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

| Guide | Contents | |---|---| | Models & API Service | Models & API Service | | MVVM ViewModels with Jetpack | MVVM ViewModels with Jetpack | | Jetpack Compose UI | Jetpack Compose UI |

Best Practices

✅ DO

Use Kotlin for all new Android code
Implement MVVM with Jetpack libraries
Use Jetpack Compose for UI development
Leverage coroutines for async operations
Use Room for local data persistence
Implement proper error handling
Use Hilt for dependency injection
Use StateFlow for reactive state
Test on multiple device types
Follow Android design guidelines

❌ DON'T

Store tokens in SharedPreferences
Make network calls on main thread
Ignore lifecycle management
Skip null safety checks
Hardcode strings and resources
Ignore configuration changes
Store passwords in code
Deploy without device testing
Use deprecated APIs
Accumulate memory leaks

Agent Skills: Android Kotlin Development

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