If it's in the app delegate, it's easy to get it in the view controller - just get a handle to the app delegate and then request the ivar (assuming you have a property for your data ivar set up in the app delegate) - which means you'd move ImageStrings *theDataObject to be an IVar and setup a property for it

you would get it from something similar to...

then you would get the data..

self.localRetainOfData = appDelegate.theDataObject;

then you would just access the data from the local ivar of the class.

Keep in mind, passing data between view controllers (direct passing, not accessing through the app delegate) requires use of the segue methods where you can set data values in the destination view controllers (this is going from view A to view B, not from app launch to view a)