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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