Unit 5: Connect to the internet

• Unit 5 Pathway 1: Get data from the internet
  • Unit 5 Pathway 1 Activity 1: Connect to the internet
  • Unit 5 Pathway 1 Activity 2: Introduction to Coroutines in Kotlin Playground
    • Before you begin
      • Prerequisites
      • What you’ll build
      • What you’ll learn
      • What you’ll need
    • Synchronous code
      • Simple Program
      • Add a delay
      • Suspending functions
    • Asynchronous code
      • launch()
      • async()
      • Parallel Decomposition
    • Exceptions and cancellation
      • Introduction to exceptions
      • Exceptions with coroutines
      • Try-catch exceptions
      • Cancellation
    • Coroutine concepts
      • Job
      • Job hierarchy
      • CoroutineScope
      • CoroutineScope in Kotlin Playground
      • CoroutineScope in Android apps
      • Implementation Details of CoroutineScope
      • CoroutineContext
      • Dispatcher
    • Conclusion
      • Summary
  • Unit 5 Pathway 1 Activity 3: Introduction to Coroutines in Android Studio
    • Before you begin
      • Prerequisites
      • What you’ll build
      • What you’ll learn
      • What you’ll need
    • App overview
      • Get the starter code
      • Starter code walkthrough
    • Implement race progress
    • Start the race
    • Structured concurrency
    • Solution code
    • Conclusion
  • Unit 5 Pathway 1 Activity 4: Introduction to HTTP/REST
  • Unit 5 Pathway 1 Activity 5: Get data from the internet
    • Before you begin
      • Prerequisites
      • What you’ll learn
      • What you’ll do
      • What you need
    • App overview
    • Solution code
      • Solution code overview
    • Introduction to web services
    • Web services and Retrofit
      • Web service request
        • External Libraries
        • Retrofit Library
      • Retrofit dependencies
    • Connecting to the Internet
    • ViewModelScope
    • Internet permissions
    • Exception Handling
    • State UI
    • Parse JSON with kotlinx.serialization
      • JavaScript Object Notation
      • Structure of sample JSON response
      • kotlinx.serialization library dependencies
      • The Mars Photo data class
        • @SerialName Annotation
      • MarsApiService and MarsViewModel
    • Summary
      • REST web services
      • JSON parsing
• Unit 5 Pathway 2: Load and display images from the internet
  • Unit 5 Pathway 2 Activity 1: Architecture: The Data Layer
  • Unit 5 Pathway 2 Activity 2: Add repository and Manual Dependency Injection
    • Before you begin
      • Introduction
      • Prerequisites
      • What you’ll learn
      • What you’ll build
      • What you need
      • Get the starter code
    • Separate the UI layer and Data layer
      • Why different layers?
      • What is a data layer?
      • What is a repository?
    • Create Data layer
      • Create repository
    • Dependency injection
      • Create an Application Container
    • Attach application container to the app
    • Add repository to ViewModel
    • Solution code
    • Conclusion
  • Unit 5 Pathway 2 Activity 3: Load and display images from the internet
    • Before you begin
      • Introduction
      • Prerequisites
      • What you’ll learn
      • What you’ll build
      • What you’ll need
    • App overview
    • Solution code
    • Display a downloaded image
      • Coil dependency
      • The AsyncImage composable
      • Loading and error images
    • Display a grid of images with a LazyVerticalGrid
      • Lazy grids
      • Use LazyVerticalGrid
    • Conclusion
  • Unit 5 Pathway 2 Activity 4: Practice: Build amphibians app
    • Before you begin
      • Introduction
      • Prerequisites
      • What you’ll need
      • What you’ll build
    • Plan the app
    • Start with the solution code
    • Solution code
  • Unit 5 Pathway 2 Activity 5: Project: Create a Bookshelf app
    • Before you begin
      • Prerequisites
      • What you’ll build
      • What you’ll need
    • Overview
    • Plan your app
      • Plan your UI
      • Plan the network layer
        • Search for books
        • Request info for a specific book
        • Download book thumbnails
    • Build the Bookshelf app
• Unit 5 Quizzies