iOS: how to understand the role of rootviewcontroller and its relationship with other objects

Posted by Anthony Kong on Stack Overflow See other posts from Stack Overflow or by Anthony Kong
Published on 2011-01-14T22:31:02Z Indexed on 2011/01/14 22:53 UTC
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Filed under:

ios

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ios4

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interface-builder

I have created a UISplitViewController based iOS app in XCode 3.2.5

Below is a screen shot of Interface builder showing the rootviewcontroller and how it is linked to other objects.

alt text

Being a beginner myself, I do not understand:

1) What is the role of the rootviewcontroller? Searched the documentation but what I found did not answer this question.

2) I thought a IBOutlet should only link to one corresponding object. Why in this case the rootviewcontroller is linked to two?

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