Android 9 Development Cookbook - Third Edition

Storing simple data

It's a common requirement to store simple data, and Android makes it simple using the Preferences API. It's not limited to just user preferences either; you can store any of the primitive data types using a name/value pair.

We'll demonstrate saving a name from an EditText and displaying it when the application starts. The following screenshots shows how the application looks the first time with no saved name:

This is an example of how it looks after saving a name: