March 2013
Beginner to intermediate
580 pages
16h 11m
English
Content preview from Android Programming: The Big Nerd Ranch GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Model-View-Controller and Android
Notice that the objects in Figure 2.4 are separated into three sections labeled Model, Controller, and View. Android applications are designed around an architecture called Model-View-Controller, or MVC for short. MVC states that any object in your application must be a model object, a view object, or a controller object.
A model object holds the application’s data and “business logic.” Model classes are typically designed to model the things your app is concerned with, such as a user, a product in a store, a photo on a server, or a television show. Or a true-false question. Model objects have no knowledge of the user interface; their sole purpose is holding and managing data.
In Android applications, model ...
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