Summary

In this chapter, we looked at the concept of data sources and the different types of data sources we have available in an Android application. We started with remote data sources and saw some examples of how we can build a data source and combine it with libraries such as Retrofit and OkHttp. The local data source followed similar principles as the remote one, and here, we have used libraries such as Room and Data Store to implement this.

In the exercises, we implemented the data sources as part of different modules. This was to avoid creating any unnecessary dependencies between the other layers of the application and the specific frameworks we have used for the data sources. In the next chapter, we will look at how we can build the presentation layer and show data to the user. We will also explore how we can split the presentation layer into separate modules and navigate from a screen in one module to a screen in another module, through the introduction of modules that...