#DevelopAppsForBillions

Infinum Android Handbook

Our handbook is based on 10 years of experience in Android development. Here are some numbers behind it:
50,000+
hours of coding
2.5M+
lines of code
50+
launched apps
25+
developers
Introduction
Android development has always been very chaotic. There are as many solutions to common issues in Android development as there are developers.
To help us with this clutter, we have developed the Android Handbook, a coding standard in which all developers can find something useful for themselves or their team. Having this set of guidelines helps us evolve as a collective, avoiding well-known issues, such as AsyncTask in Activity, variable names in languages other than English, and method names in snake case.
This handbook touches on the whole process—from creating a new project, through development and testing, to releasing it on Google Play. It's dangerous to go alone, so read this.
Chapters
  1. Project structure
    1. Project setup
    2. Package structure
    3. Gradle build system
    4. Kotlin Gradle DSL
    5. Polyglot
    6. Google Developers Console
  2. Project architecture
    1. Mobile app architecture
    2. MVVM
    3. MVP (deprecated)
  3. Common Android
    1. Kotlin extensions
    2. View styles
    3. System permissions
    4. Keystore management
    5. App re-signing
    6. Room migrations
  4. Dependency injection
    1. General
    2. Hilt
    3. Dagger
  5. Building quality apps
    1. Using git
    2. Pull requests
    3. Code quality
    4. Project readme
    5. Naming
    6. Commenting code
    7. Unit tests
  6. Deployment
    1. Android App Bundles
    2. Play Store
    3. Release practices
  7. Security
    1. Certificate pinning
  8. Useful tools & utilities
    1. Libraries
    2. In-house libraries
    3. Logging
    4. Charles
    5. Figma
    9. Start reading