Anxiety over Android data persistence with SQL?

Announcing New Course: Saving Data on Android!

Saving data is a crucial part of every modern app because it allows users to use the app even if they don't have a stable Internet connection.

Learn about different ways to save data on Android in our new Saving Data on Android course!

Keep reading to hear more about it from course instructor Filip Babić:

Why should I take your Saving Data on Android course?

"Saving data is especially important because you want your users to be able to see data even if they restart the app.

In my course, you'll learn how to maximize the potential of such features as Using SharedPreferences, Files, and SQL based databases to let you save data locally and store meaningful objects that you can create, read, update and delete."

How do you save data on Android in your job?

"I use data persistence in every single project I work on either to supplement Remote servers or to build local-data-only applications, which don't rely on any external servers or APIs.

In doing so, I can support powerful data relations and encryption and I can also build offline-first apps that work well with remote servers, with extra synchronization options."

Can you please share a cool saving data on Android tip with us?

"When working with SharedPreferences, Files, SQLite or any other data-consuming entity in Android, make sure to wrap such entities in Repositories or DataSource interface abstractions to keep your app decoupled and abstract and to be able to switch between different types of implementations when it comes to specific entities.

You can prepare interfaces such as:

And then have different implementation depending on the source of data, such as `RemoteRepository`, `InMemoryRepository`, `LocalRepository` and similar."

Is there anything else we should know about your Saving Data on Android course?

"If you're not that keen on writing a lot of SQL, using the SQLite Open Helper Database on Android or using the File System to store complex data, make sure to check out Room, which is a powerful and easy to use SQL database wrapper in Android that greatly improves the experience of storing complex data in your apps."

Filip's Saving Data on Android course is available for subscribers now!

Hey — the new Ultimate Subscription gets you access to both videos and books, all in the same subscription. Interested? Click here to learn more ➜

— Ray