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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Using Loaders in RunTracker
RunTracker currently loads three chunks of data: the list of runs (a RunCursor), an individual Run, and that run’s latest Location. Each of these comes from the SQLite database, and should therefore be moved to a Loader to create a smooth user experience.
In the following sections, you will create two abstract subclasses of AsyncTaskLoader. The first, SQLiteCursorLoader, is a simplified version of the framework’s CursorLoader that will work with a Cursor coming from any source. The second is DataLoader<D>, which is capable of loading any kind of data and simplifies the use of AsyncTaskLoader for subclasses.
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