• Operating System :
  • Linux (Ubuntu)
  • macOS
  • Windows
• IDE :
  • Android Studio
  • JDK
  • SDK/AVD
• Package Managers :
  • Gradle (Kotlin DSL)
  • SDKMAN!
  • Homebrew (macOS)
• Device :
  • Real Android phone for testing

1) 🌌 Kotlin Programming Language

Goal: Readable, idiomatic Kotlin.

• Basics :
  • Data Types
  • Variables
  • Operators
• Collections :
  • Array
  • List
  • Map
  • Set
  • Tree Map
• Control Flow :
  • If
  • For
  • While
  • When
  • Break/Continue
• Data + Exception Handling :
  • Null Safety
  • Try Catch
• Functions :
  • Defining Function
  • Lambda Expression
  • Extension Function
  • Infix Function
  • Default Parameter Values
  • Named Arguments
• Object Oriented Programming :
  • Classes + Objects
  • Constructor
  • Inheritance
  • Visibility Modifiers
  • Package Definition
  • Data Class
  • Abstract Class
  • Enum Class
  • Sealed Class
  • Interface
  • Nested + Inner Class
• Type System :
  • Safe Casts
  • Smart Casts
  • Type Checks
• Advanced Features :
  • Generics
  • Operator Overloading

2) 🤖 Android Fundamentals

Goal: Understand the platform lifecycle & app structure.

• App Components :
  • Activity
  • Fragment
    • Fragment Lifecycle
    • Fragment Manager
  • Foreground Services
  • Broadcast Receiver
  • Content Provider
  • Uri
  • Resource Qualifiers
• App Manifest
• Permissions
• Resources
• Intents (Explicit/Implicit)
• Pending Intents
• Deep Links
• App LifeCycle
• Process Death
• Saved State (ViewModel + SavedStateHandle)
• Static User Interface
  • View
    • Button, ImageView, TextView, EditText etc
  • ViewGroup
    • LinearLayout, RelativeLayout, FrameLayout, ConstraintLayout
• Dynamic User Interface
  • RecyclerView
  • ViewPager
  • Spinner
• CustomView
  • Canvas
  • Bitmap
  • Paint
• UI Resources
  • Drawables
  • String
  • Styles
• Support User Interface
  • ProgressBar
  • Dialogs
  • Toast & Snackbar
• Android Jetpack
  • Foundation Components
    • AppCompat
    • Android KTX
    • Multidex
  • Architecture Components
    • LiveData
    • ViewModel
    • DataBinding
    • Paging
    • Work Manager
    • Navigation
  • Behaviour Components
    • Download Manager
    • Media Playback
    • Notification
    • Permissions
    • Preference
    • Sharing
    • Slice
  • UI Component
    • Animation & Transition
    • Android Auto
    • Emoji
    • Palette

3) 💎 Jetpack Compose

Goal: Build modern, reactive UIs with Material 3.

• Composables
• Sate & Recomposition
• Remember/State Hoisting
• Layouts :
  • Row
  • Column
  • Box
  • Lazy Lists
  • Modifiers
• Navigation-Compose
• Argument Passing
• Backstack
• Animations :
  • Animate*AsState
  • Transitions
  • Animated Visibility
• Accessibility :
  • Content Description
  • Talkback
  • Semantics
• Large Screens & Foldables :
  • Adaptive Layouts (WindowSizeClass)
• Widgets (Glance)
• Notifications Styles
• Scaffold
  • Snackbar
  • Top Bar
  • Bottom Bar
  • Floating Action Button

4) 🏢 Architectures & State Management

Goal: Scalable, testable app structure.

• Architectures :
  • Model-View-ViewModel (MVVM)
  • Model-View-Intent (MVI)
  • Model-View-Presenter (MVP)
• Layers :
  • UI → ViewModel → UseCases → Repository → Data Source
• Unidirectional Data Flow (UDF)
• StateFlow/SharedFlow
• Modularization :
  • Feature
  • Core
  • Library Modules
  • Dynamic Feature Delivery
• Tools :
  • DI
    • Hilt (Dagger)
    • Koin
  • State
    • Kotlin Coroutines + Flow

5) 💉 Data & Persistence

Goal: Store and cache data safely.

• Preferences Replacement :
  • DataStore (Proto/Preference)
• SQL with Room :
  • Entities
  • DAOs
  • Relations
  • Migrations
• Offline-First Strategies :
  • Caching
  • Pagination
• Files
• MediaStore
• Scoped Storage
• Encryption :
  • EncryptionSharedPreference/SQLCipher/EncryptedFile

6) 🛜 Networking & APIs

Goal: Robust HTTP/WS serialization.

• HTTP Basics
• REST
• GraphQL
• WebSocket
• Error Handling
• Retries
• TimeOuts
• Offline Strategy
• Interceptors
• Logging
• Caching (OkHttp Cache)
• Tools :
  • Rest :
    • Retrofit + OkHttp
  • Serialization :
    • Kotlinx Serialization
    • Moshi/Gson
  • GraphQL :
    • Apollo Kotlin
  • WebSocket :
    • OkHttp WS
    • Ktor Client
  • Pagination :
    • Paging 3
  • Spring Boot
  • RxJava

7) 🪶 Concurrency — Coroutines & Flow

Goal: Efficient async programming.

• Suspend Functions
• CoroutineScope
• Dispatchers
• Builders :
  • Launch
  • Async
  • Structured Concurrency
• Cold vs Hot Streams :
  • Flow/StateFlow/SharedFlow
• Operators :
  • Map
  • FlatMapLatest
  • Debounce
  • Catch
  • Retry
• Lifecycle awareness with viewModelScope

8) 👾 Background Work & System APIs

Goal: Respect battery & system policies.

• WorkManager (Deferrable)
• Foreground Service (only when required)
• Alarms/Exact Alarms
• Doze/App Standby
• Battery Optimization
• Broadcasts
• JobScheduler Basics
• Foreground Service Notification & User-Visible Tasks

9) 💽 Device Capabilities

Goal: Integrate hardware/services.

• Location (FusedLocationProvider)
• Geofencing
• Google Maps
• CameraX (Photo/Video)
• Media Capture & Playback
• Bluetooth LE
• NFC
• Biometrics
• WIFI
• Sensors (Accelerometer, Gyroscope)
• Permissions UX

10) 🔥 Firebase/Backend Integrations

Goal: ship faster with managed services.

• Auth (Email/OAuth)
• Firestore/Realtime DB
• Storage
• Crashlytics
• Analytics
• Remote Config
• A/B Testing
• Firebase Cloud Messaging (Push)
• App Distribution

11) 🧪 Testing Strategy

Goal: Confident changes with fast feedback

• Unit Tests (JUnit4/5)
• Fakes/Mocks (MockK)
• Instrumentation & UI Tests :
  • Espresso
  • Compose UI Testing
• Robolectric for fast JVM tests of Android code
• Snapshot testing :
  • Paparazzi (Optional)
• API tests with MockWebServer
• Contract Tests For DTOs

12) 🫁 Performance & Quality

Goal: Smooth UX. small APKs, no leaks

• Profilers
  • CPU
  • Memory
  • Network
  • Startup tracing
• ANRs & StrictMode
• Choreographer Frame Drops
• Lint
• Ktlint/Detekt
• Spotless
• Static Analysis In CI
• R8/ProGuard Rules
• Resource Shrinking
• Baseline Profiles

13) 🔐 Security & Privacy

Goal: Protect users & comply with play policies

• HTTP/TLS
• Networking Security Config
• Certificate Pinning
• Safe Storage :
  • EncryptedFile
  • Tink/SQLCipher
• Biometric Prompt
• Device Credentials
• Play Integrity API
• Tamper/Root Checks (As Needed)
• Permissions Best Practices
• Data Safety Form
• Privacy Notices

14) 🛒 Build, Release & Play Console

Goal: Ship confidently & Iteratively.

• Gradle Kotlin DSL
• Build Variants
• Product Flavors
• Versioning (SemVer)
• Changelogs
• Release Notes
• App bundled (AAB)
• Singing Configs
• Play Console Tracks
• In-App Updates
• Play Billing (Subs/One-Time)
• Feature Flags / Remote Config for safe launches

15) 🎡 CI/CD Automation

Goal: Repeatable builds. instant feedback

• GitHub Actions/Bitrise/CircleCI
• Pipelines :
  • Assemble
  • Test
  • Lint
  • Static Analysis
  • Artifact Upload
• Fastlane (Optional)
• Firebase App Distribution
• Caching Cradle & Node Modules
• build Scans

16) 🔭 Monitoring & Observability

Goal: Know when things break — before users do.

• Crash Reporting :
  • Crashlytics
  • Sentry
• Logs :
  • Timber
  • Structured Logs
  • Log Sampling
• Performance Monitoring :
  • Firebase Perf
  • OpenTelemetry (Advanced)

17) 🍕 Kotlin Multiplatform

Goal: Build apps that share business logic across Android, iOS, Desktop and web, while keeping native UI for each platform.

• Development Setup
  • Install Kotlin Multiplatform plugin
  • Configure Gradle for Multiplatform projects
• Kotlin Foundations
• Understand the KMP Philosophy
  • What is Kotlin Multiplatform (KMP)
  • What can be shared (logic) vs what stays platform-specific (UI)
  • How Kotlin code compiles to JVM (Android), Native (iOS), JS (Web)
• Learn KMP Project Structure
  • shared module → common Kotlin code
  • androidApp → Android-specific UI (Compose or XML)
  • iosApp → iOS-specific UI (SwiftUI or UIKit)
• Understand how Gradle targets work
  • jvm(), ios(), iosSimulatorArm64(), js(), etc.
  • How expect / actual declarations bridge platform differences
• Shared Code & Business Logic
  • Models & data classes
  • Networking (Ktor)
  • JSON parsing (Kotlinx.serialization)
  • Database (SQLDelight or Realm)
  • Dependency Injection (Koin or Kodein)
• Coroutines & Flows in KMP
  • Learn how to use Coroutines for background tasks
  • Flow for reactive data streams
  • Use libraries like kotlinx. Coroutines (work across platforms)
• Platform Integration
  • Use expect and actual to handle platform-specific APIs (like File I/O, Bluetooth, etc.)
  • Learn to call shared code from Swift and Kotlin
  • Manage platform dependencies via Gradle
• Testing & Debugging
  • Unit tests with kotlinTest / Kotest
  • Run tests across platforms
  • Debug shared code and platform code in IDE
• Advanced Topics
  • Compose Multiplatform (for shared UI)
  • Kotlin/Wasm (for Web)
  • Build pipelines (Gradle & Ci/CD for KMP)
  • KMP libraries development
  • Performance optimization

18) 🍻 Compose Multiplatform

Goal: Build cross-platform UIs (Android, Desktop, iOS. Web) using one kotlin codebase, powered by Jetpack Compose

• kotlin Foundations
• Understand Jetpack Compose (Android-first)
• Get familiar Compose Multiplatform
  • What CMP is
  • How it connects Kotlin targets (Desktop, iOS, Web)
  • Difference between KMP and CMP
  • Supported targets (Android, Desktop, iOS. Web)
• Setup Development Environment
  • Install Kotlin Multiplatform plugin
  • Setup Gradle with Compose Multiplatfor