Renaming A View Controller

See here

Renaming A Set Of View Files

Rename the .h, .m and .xib files

Update the name in the following places:

In #ViewController.h update @interface

In #ViewController.m update

#import

@implementation

In #ViewController.xib update

Select the Files Owner icon on the left, then the Identity Inspector tab and rename the Class in Custom Class to the new name.

Finally update any files that use the ViewController.