amitshekhariitbhu/android-developer-roadmap

Android Developer Roadmap - A complete roadmap to learn Android App Development

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:

• Blog by Amit Shekhar
• YouTube Channel by Amit Shekhar

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!

android-developer-roadmap's Issues

Developer

https://github.com/public-apis/public-apis/actions/runs/1920212595/workflow

Joshua Verdin

https://developers.appbrain.com/dev_dashboard

Design Pattern (scope: android-dev)

why is there no "Design Pattern" section here? such as:

• Builder Pattern
• Starter Pattern
• etc.

I think it is a good thing and should to introduce to everyone who getting started on android development :)

Software

mlcommons/policies@bab9284

License

https://github.com/telegramdesktop/tdesktop/blob/dev/LICENSE

Considering Compose

this roadmap before 3 years
can you update it with the emerge of jetpack compose ?

Adding data communication protocols

Hello,

This is I guess a nice road map for complete android development, Though there are some suggestions by me for adding some sections.

1.)Communication protocols

1. • BLE
2. • Wi-fi
3. • Nfc

2.)Socket programming

1. Xmpp
2. Mqtt
3. Web Socket programming

3.) IOT

1. Android Things
   2.Arduino

-Thanks

Suggestions

I have 2 suggestions

First:- I think "Static User Interface" should come before "Intents" as in order to implement intents you need knowledge of views and ViewGroups.

Second:- Can you also include sample project ideas that can be implemented after certain levels. Like for eg- after learning till "Static User interface" one can make a "TicTacToe".

App dev

Dependency Injection - Koin

Consider adding Koin - Dependency Injection solution in Kotlin Android projects.

Joshua Verdin

few notes

here are just a few thoughts:

• Security // how does proguard/r8 increase security? (obfuscation is not security) i'd put it under build

instead i'd put oauth / keystore here (arguably could be also under storage)

• Unit testing -> robolectric / mokk

• Data format -> json -> kotlin serialisation, parcable

• 3rd party libs -> rather aim for where to find them: github, android arsenal or android lib hunt and potentially how to create one yourself or fork one (maven, bintray, jitpack)

• Memory leaks -> leakcanary

• Logging -> monitoring vs crash reporting vs tracking

• Threading -> rx vs coroutines vs java threads vs flow

• Build -> CI, merge strategy of resource folder and manifest

• Viewbinding / data binding is missing

• Dynamic user interface : Motionlayout / jetpack compose, bottom navigation bar

Developer

adb shell pm grant com.arumcomm.androiddevinfo android.permission.PACKAGE_USAGE_STATS
adb shell pm grant com.arumcomm.androiddevinfo android.permission.READ_LOGS