Unit 4 Pathway 1: Architecture Components

• Unit 4 Pathway 1 Activity 1: Welcome to Unit 4
• Unit 4 Pathway 1 Activity 2: Stages of the Activity lifecycle
  • Before you begin
    • Prerequisites
    • What you’ll learn
    • What you’ll build
  • App Overview
    • Starter code
  • Explore the lifecycle methods and add basic logging
    • Step 1: Examine the onCreate() method and add logging
    • Step 2: Implement the onStart() method
    • Step 3: Add more log statements
  • Explore lifecycle use cases
    • Use case 1: Opening and closing the activity
    • Use case 2: Navigating away from and back to the activity
    • Use case 3: Partially hide the activity
  • Explore configuration changes
    • Configuration change causes onDestroy() to be called
    • Data loss on device rotation
    • Lifecycle of a composable
    • Use rememberSaveable to save values across configuration changes
  • Solution code
  • Summary
    • Activity lifecycle
    • Logging with Log
    • Configuration changes
• Unit 4 Pathway 1 Activity 3: Intro to App architecture
• Unit 4 Pathway 1 Activity 4: Architecture: The UI Layer
• Unit 4 Pathway 1 Activity 5: ViewModel and State in Compose
  • Before you begin
    • Prerequisites
    • What you’ll learn
    • What you’ll build
    • What you’ll need
  • App overview
    • Game overview
    • Solution code
  • Solution code overview
    • Solution code walkthrough
    • WordsData.kt
    • MainActivity.kt
    • GameScreen.kt
      • GameStatus
      • GameLayout
      • GameScreen
      • FinalScoreDialog
  • Learn about app architecture
    • Recommended app architecture
    • UI Layer
      • UI Elements + UI State = UI
      • UI Elements
      • UI State
      • The ViewModel state holder
  • Unscramble app architecture
  • GameViewModel
    • StateFlow
    • Backing property
  • Architecting your Compose UI
    • Unidirectional data flow
    • Pass the data
    • Display the guess word
  • Verify guess word
  • Update score and word count
    • Pass score and word count
  • Handle last round of game
    • Display game end dialog
    • Anatomy of alert dialog
  • State in device rotation
  • Conclusion
• Unit 4 Pathway 1 Activity 6: Write unit tests to test the ViewModel (optional)
  • Before you begin
    • Prerequisites
    • What you’ll learn
    • What you’ll build
    • What you’ll need
    • Get the starter code
  • Starter code overview
  • Add test dependencies
    • Compose Bill of Materials (BOM)
  • Test strategy
    • Create tests
    • Success path
    • Error path
    • Boundary case
    • Test instance lifecycle overview
  • Introduction to code coverage
    • Run test with coverage using Android Studio
    • Analyze test report
    • Improve coverage
  • Solution code
  • Conclusion
• Unit 4 Pathway 1 Activity 7: Practice: Add a ViewModel to Dessert Clicker
  • Before you begin
    • Introduction
    • Prerequisites
    • What you’ll need
    • What you’ll build
  • Starter code
  • Set up dependencies
  • Create a UI state class
  • Create a ViewModel
  • Relocate the app logic and data to the ViewModel
  • Call the ViewModel
  • Solution code