May 2022
Intermediate to advanced
688 pages
20h 12m
English
book
Android Programming: The Big Nerd Ranch Guide, 5th Edition
by Bryan Sills, Brian Gardner, Kristin Marsicano, Chris Stewart
Content preview from Android Programming: The Big Nerd Ranch Guide, 5th Edition
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Accessing the Database Using the Repository Pattern
To access your database, you will use the repository pattern recommended by Google in its Guide to App Architecture (developer.android.com/jetpack/guide).
A repository class encapsulates the logic for accessing data from a single source or a set of sources. It determines how to fetch and store a particular set of data, whether locally in a database or from a remote server. Your UI code will request all the data from the repository, because the UI does not care how the data is actually stored or fetched. Those are implementation details of the repository itself.
Because CriminalIntent is a simpler app, the repository will only handle fetching data from the database.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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