Data management

  • Android apps often need to store and retrieve user information that outlasts the app's active session.

  • Developers preparing for the Associate Android Developer certification should understand key concepts like Room entities, DAOs, LiveData, Repositories, and persistent Preferences to manage data effectively.

  • The provided resources, including codelabs and course content, offer hands-on learning experiences for mastering these data persistence techniques.

  • Achieving competency in these areas is crucial for building robust and user-friendly Android applications.

Many Android apps store and retrieve user information that persists beyond the life of the app.

To prepare for the Associate Android Developer certification exam, developers should:

  • Understand how to define data using Room entities
  • Be able to access Room database with data access object (DAO)
  • Know how to observe and respond to changing data using LiveData
  • Understand how to use a Repository to mediate data operations
  • Be able to read and parse raw resources or asset files
  • Be able to create persistent Preference data from user input
  • Understand how to change the behavior of the app based on user preferences

Other Resources