Android Paging

1. Introduction

What you'll learn

• What the main components of Paging 3.0 are.
• How to add Paging 3.0 to your project.
• How to add a header or footer to your list using the Paging 3.0 API.
• How to add list separators using the Paging 3.0 API.
• How to page from network and database

What you'll build

In this codelab, you start with a sample app that already displays a list of GitHub repositories. Whenever the user scrolls to the end of the displayed list, a new network request is triggered and its result is displayed on the screen.

You will add code through a series of steps, to achieve the following:

• Migrate to the Paging library components.
• Add a loading status header and footer to your list.
• Show loading progress between every new repository search.
• Add separators in your list.
• Add database support for paging from network and database

Here's what your app will look like in the end:

What you'll need

• Android Studio 3.6 or higher.
• Familiarity with the following Architecture Components: LiveData, ViewModel, View Binding and with the architecture suggested in the " Guide to App Architecture".
• Familiarity with coroutines and Kotlin Flow.

For an introduction to Architecture Components, check out the Room with a View codelab. For an introduction to Flow, check out the Advanced Coroutines with Kotlin Flow and LiveData codelab.