Datasheet

Chapter 1: Introducing Xcode 4
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In the first release of Xcode 4, it’s no longer possible to customize this area with your own selec-
tion of build/run/stop/clean options, as it was in Xcode 3.
Working with tabs
Xcode 4 introduces tabs—editor sub-windows that work like the tabs in a browser, allowing
single-click switching between selected files, as shown in Figure 1.4. Tabs replace the file list
that appeared above the editor pane in Xcode 3. The file list was an inefficient way to select files
for editing. With tabs, you can add your choice of files to the tab bar as you work and then save
the tab bar with the project. You can also delete files from the tab bar when you are no longer
working on them.
Figure 1.4
The new tab bar replaces the project file list and appears under the main toolbar near the top
of the Xcode 4 window.
TIP
Tabs save the current cursor position, so you can use them to switch quickly between different sections of the same
file. It’s often useful to open multiple tabs that show the most significant methods or functions in a file.
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