Using Documentation - Xcode 4 - page 132

Select Help⇒Developer Documentation.
Use the Quick Help feature to highlight and search for a symbol in a code listing.
Use option/alt clicks on symbols to load it directly from your code.
CAUTION
The Search feature in the Help menu doesn't search the documentation. In fact, it only provides help for Xcode
features. You can't use it to search the rest of the developer library.
Confusingly, the Xcode browser shows two different documentation sets in the same window. The view at the
right is a standard web view showing the information that appears when you access the documentation using a
web browser. The view at the left is an independent set of quick access links. There are three icons above the
list:
Explore: Use this to browse the document hierarchy.
Search: Perform a word-match search.
Bookmark: Create your own list of bookmarks.
There's some overlap between the documents listed in the web view, and in the hierarchical list. For example,
both include links to the same class references.
But the two collections aren't identical, even though they're both grouped into similar topics. As shown in Fig-
ure 6.17, there are significant differences between the topic list at the left and the web view at the right.
Although this design seems counterintuitive, it eliminates some of the redundancy and irrelevance of the web
help, and it creates a more focused environment for searching and browsing. These are the key differences:
Different versions of each OS have separate documentation files.
There are fewer optional and tangential elements such as Technical Q&As. When these elements are in-
cluded, they're more likely to be relevant and useful for a specific topic.
Class references, functions, and constants are listed alphabetically under section headers. This makes it
easier to review and browse the class references.
The documentation includes code snippets, short code examples that illustrate classes and features but
aren't part of a complete project.
The search features display a wider selection of sample code and are generally more likely to produce
useful hits.
FIGURE 6.17
Both of these lists show the documentation for the Audio & Video topic. But the list of items in the left pane differs
substantially from the list in the web view on the right.