Android Development Essential Training: 4 Working with Data

Learn about packaging, retrieving, and displaying data through dealing with persistent data and complex databases.

Introduction

• Developing data-driven apps
• What you should know
• Following along with the course

1. Package Static Data in JSON Files

• Model an entity in a Kotlin data class
• Read files from resources
• Read files from assets
• Parse JSON strings with Moshi
• Map JSON and class property names
• Challenge: Show me the data!
• Solution: Show me the data!

2. Get Data from a Web Service

• Share data with LiveData objects
• Explore HTTP clients
• Add Retrofit dependencies
• Define a Retrofit interface
• Retrieve remote data with Retrofit

3. Display Data in a RecyclerView

• Explore RecyclerViews
• Add a RecyclerView to a fragment
• Create a RecyclerView item layout
• Create a RecyclerView adapter class
• Bind data in a RecyclerView ViewHolder
• Display images dynamically with Coil
• Challenge: Random pics
• Solution: Random pics

4. Display Selected Data Items

• Handle RecyclerView click events
• Navigate to a detail fragment
• Pass data in a shared ViewModel
• Challenge: Lights, camera, action
• Solution: Lights, camera, action

Conclusion

• Next steps