Information Technology Reference
In-Depth Information
CAUTION
Some items appear under more than one heading. For example the MapKit Constants Reference appears under the
MapKit subtopic in the Cocoa Touch layer and also in the User Experience topic. The duplication seems arbitrary.
Generally, topic browsing is most useful if you already have a basic understanding of a topic and need quick ac-
cess to reference material about specific features. The topics include the same introductory guides that are avail-
able online, with the same limitations: They can be useful reminders, but they're heavy going if you're looking
for a good, practical hands-on introduction to entry-level coding techniques. Otherwise, the organization is
slightly haphazard. You can use browsing to discover and explore OS features that may be lost online, but you
need to explore the code samples, code snippets, and independent developer discussions to develop a good
working knowledge in practice.
TIP
The viewer includes a hierarchical menu navigation tree in the space above the document window. It's very simil-
ar to the hierarchical project view in the main Xcode editor. In theory, you can navigate to any document directly.
In practice, some menu levels include hundreds of documents, and the extra scrolling needed to reach them
makes this feature less useful than it might be.
Searching the documentation
