In this chapter, we saw how to use other apps installed on our users' device to get data from them. Specifically, we learned to get an image from the camera app, but we also know that we can use similar techniques with many other apps; however, this is beyond the scope of this beginners guide.
In the next two chapters, you will first learn the necessary techniques and then we will implement a way to save the users' data using an SQLite database. Databases are a very efficient way to store data in our apps. Certainly, there would be nothing wrong with using JSON in this app, just as we did in Chapter 15, Android Intent and Persistence, but we will see some advantages of using a database as the project proceeds. The least of which will be the ability to easily sort our data, as well as upgrade/update the structure of the data.