Adding a Split View
Like a tab bar controller, a split view controller should be added to the top level of your view hierarchy. As in the navigation and tab bar controller chapters, you will initialize and set the split view controller in the app delegate.
Add a reference to the split view controller by editing TweetPadAppDelegate.h to match the following:
The split view is then initialized in the app delegate’s application:didFinishLaunchingWithOptions: method. Edit TweetPadAppDelegate.m so it matches the following:
A few notes about the ...