Android Developer Roadmap

A complete roadmap to learn Android App Development. This roadmap will help you in becoming a complete Android Developer.

Note: All the resources to learn all of the concepts in the roadmap will be provided on:

About me

Hi, I am Amit Shekhar, I have mentored many developers, and their efforts landed them high-paying tech jobs, helped many tech companies in solving their unique problems, and created many open-source libraries being used by top companies. I am passionate about sharing knowledge through open-source, blogs, and videos.

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Roadmap to learn Android App Development

Programming
- Java
- Kotlin
Android Studio
- Android Studio IDE Overview
- Project Structure
  - Java/Kotlin
  - XML
  - .gradle files
Android Component
- Activity
  - Activity Lifecycle
  - Tasks & Back Stack
- Service
- Broadcast Receiver
- Content Provider
Intents
- Types of Intent
  - Implicit
  - Explicit
- Intent Filter
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
Fragments
- Fragment Lifecycle
- Fragment Manager
Support User Interface
- ProgressBar
- Dialogs
- Toast & Snackbar
Storage
- Shared Preferences
- File Systems
- Database
  - RoomDB
Build
- Gradle
- Debug / Release Configuration
Threading
- Thread
- Handler/Looper
- ThreadPoolExecutor
- RxJava
- Coroutines/Flow
- WorkManager
Debugging
- Memory profiling
- Logging
- Systrace
- Exceptions
- Error Handling
Memory Leak
- Detecting and Fixing Memory Leaks
- Context
3rd Party Library
- Image Loading
  - Glide
  - Picasso
- Dependency Injection
  - Dagger
- Networking
  - Fast Android Networking Library
  - Retrofit
- MultiThreading
  - RxJava
  - Coroutines
  - Kotlin Flow API
Coroutines - You can learn these topics here: Master Kotlin Coroutines
- coroutines
- suspend
- launch, async-await, withContext
- dispatchers
- scope, context, job
- lifecycleScope, viewModelScope, GlobalScope
- suspendCoroutine, suspendCancellableCoroutine
- coroutineScope, supervisorScope
Kotlin Flow API - You can learn these topics here: Kotlin Flow API
- Flow Builder, Operator, Collector
- flowOn, dispatchers
- Operators such as filter, map, zip, flatMapConcat, retry, debounce, distinctUntilChanged, flatMapLatest
- Terminal operators
- Cold Flow vs Hot Flow: Cold Flow vs Hot Flow
- StateFlow, SharedFlow, callbackFlow, channelFlow
Data Format
- JSON
  - GSON
- Flat Buffer
- Protocol Buffer
Networking
- GET/POST/DELETE/PUT/PATCH
- OkHttp, Interceptor
- Caching
- Retrofit with Coroutines/Flow
- Multipart request
- Read, Write Timeout
- OAuth 2.0 - Refresh and Access Token
- HTTP Status Codes
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
  - Android TV
  - Android Wear
Compose
- State: remember, rememberSaveable, MutableState
- Recomposition
- State hoisting
- Side-effects
- Modifier
- Theme
- Layout, List
- Gestures, Animation
- CompositionLocal
Common Design Patterns and Architecture
- Builder Pattern
- Singleton
- Dependency Injection
- Factory
- Observer
- Repository
- MVVM
- MVP
- MVI
- Clean architecture
Unit Testing
- Local Unit Testing
- Instrumentation Testing
Firebase
- FCM
- Crashlytics
- Analytics
- Remote Config
- App Indexing
- Dynamic Link
Security
- Encrypt / Decrypt
- Proguard
- R8
App Release
- .keystore file
- App Bundle
- Playstore
Keep Learning and Improving

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License

   Copyright (C) 2022 Amit Shekhar

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

Contributing to Android Developer Roadmap

Just make a pull request. You are in!

anoopmaddasseri/android-developer-roadmap