Android Kotlin Development

1---2name: android-kotlin-development3description: >4  Develop native Android apps with Kotlin. Covers MVVM with Jetpack, Compose for5  modern UI, Retrofit for API calls, Room for local storage, and navigation6  architecture.7---8 9# Android Kotlin Development10 11## Table of Contents12 13- [Overview](#overview)14- [When to Use](#when-to-use)15- [Quick Start](#quick-start)16- [Reference Guides](#reference-guides)17- [Best Practices](#best-practices)18 19## Overview20 21Build robust native Android applications using Kotlin with modern architecture patterns, Jetpack libraries, and Compose for declarative UI.22 23## When to Use24 25- Creating native Android applications with best practices26- Using Kotlin for type-safe development27- Implementing MVVM architecture with Jetpack28- Building modern UIs with Jetpack Compose29- Integrating with Android platform APIs30 31## Quick Start32 33Minimal working example:34 35```kotlin36// Models37data class User(38  val id: String,39  val name: String,40  val email: String,41  val avatarUrl: String? = null42)43 44data class Item(45  val id: String,46  val title: String,47  val description: String,48  val imageUrl: String? = null,49  val price: Double50)51 52// API Service with Retrofit53interface ApiService {54  @GET("/users/{id}")55  suspend fun getUser(@Path("id") userId: String): User56 57  @PUT("/users/{id}")58  suspend fun updateUser(59    @Path("id") userId: String,60    @Body user: User61// ... (see reference guides for full implementation)62```63 64## Reference Guides65 66Detailed implementations in the `references/` directory:67 68| Guide | Contents |69|---|---|70| [Models & API Service](references/models-api-service.md) | Models & API Service |71| [MVVM ViewModels with Jetpack](references/mvvm-viewmodels-with-jetpack.md) | MVVM ViewModels with Jetpack |72| [Jetpack Compose UI](references/jetpack-compose-ui.md) | Jetpack Compose UI |73 74## Best Practices75 76### ✅ DO77 78- Use Kotlin for all new Android code79- Implement MVVM with Jetpack libraries80- Use Jetpack Compose for UI development81- Leverage coroutines for async operations82- Use Room for local data persistence83- Implement proper error handling84- Use Hilt for dependency injection85- Use StateFlow for reactive state86- Test on multiple device types87- Follow Android design guidelines88 89### ❌ DON'T90 91- Store tokens in SharedPreferences92- Make network calls on main thread93- Ignore lifecycle management94- Skip null safety checks95- Hardcode strings and resources96- Ignore configuration changes97- Store passwords in code98- Deploy without device testing99- Use deprecated APIs100- Accumulate memory leaks