Alternate NIB file for root view controller.

[shnaps]

I am adding the paid-functionality in my lite-version of the app....and need some help.

I had incorporated iAds in the lite version - so the NIB file for the root VC has the banner view and such that go along w/ iAds. For the paid version, I have conditionally compiled out the iAd code with #ifdefs. Both versions of the app compile fine; but only the lite version runs in the Simulator.

When I run the paid version, i get crash w/ the following stack trace.

2011-05-26 08:33:44.453 GoalBuggerFull[78022:207] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<SPAppViewController 0x63393c0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key ivPatAppText.'
*** Call stack at first throw:
(
	0   CoreFoundation                      0x00e8fbe9 __exceptionPreprocess + 185
	1   libobjc.A.dylib                     0x00fe45c2 objc_exception_throw + 47
	2   CoreFoundation                      0x00e8fb21 -[NSException raise] + 17
	3   Foundation                          0x0004d6cf _NSSetUsingKeyValueSetter + 135
	4   Foundation                          0x0004d63d -[NSObject(NSKeyValueCoding) setValue:forKey:] + 285
	5   UIKit                               0x004cc8d6 -[UIRuntimeOutletConnection connect] + 112
	6   CoreFoundation                      0x00e062cf -[NSArray makeObjectsPerformSelector:] + 239
	7   UIKit                               0x004cb2ed -[UINib instantiateWithOwner:options:] + 1041
	8   UIKit                               0x004cd081 -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 168
	9   UIKit                               0x00385a94 -[UIViewController _loadViewFromNibNamed:bundle:] + 70
	10  UIKit                               0x00383709 -[UIViewController loadView] + 120
	11  UIKit                               0x003835e3 -[UIViewController view] + 56
	12  GoalBuggerFull                      0x00002a52 -[SPAppAppDelegate application:didFinishLaunchingWithOptions:] + 572
	13  UIKit                               0x002d61fa -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1163
	14  UIKit                               0x002d855e -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 439
	15  UIKit                               0x002e2db2 -[UIApplication handleEvent:withNewEvent:] + 1533
	16  UIKit                               0x002db202 -[UIApplication sendEvent:] + 71
	17  UIKit                               0x002e0732 _UIApplicationHandleEvent + 7576
	18  GraphicsServices                    0x01732a36 PurpleEventCallback + 1550
	19  CoreFoundation                      0x00e71064 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
	20  CoreFoundation                      0x00dd16f7 __CFRunLoopDoSource1 + 215
	21  CoreFoundation                      0x00dce983 __CFRunLoopRun + 979
	22  CoreFoundation                      0x00dce240 CFRunLoopRunSpecific + 208
	23  CoreFoundation                      0x00dce161 CFRunLoopRunInMode + 97
	24  UIKit                               0x002d7fa8 -[UIApplication _run] + 636
	25  UIKit                               0x002e442e UIApplicationMain + 1160
	26  GoalBuggerFull                      0x0000ad96 main + 102
	27  GoalBuggerFull                      0x0000280d start + 53
	28  ???                                 0x00000001 0x0 + 1
)
terminate called after throwing an instance of 'NSException'

I think it is because of the fact that the NIB file still refers to the outlets for the iAd (because I don't have two versions of the NIB file).....

Now comes my question:

Is there a way to specify an alternate NIB file for the root view controller? If not, how can I get around the problem?

BTW, for the other NIB files, I am planning to have alternate versions - and since the code refer to them explicitly, I can put them in #ifdefs. I just don't know how to deal w/ the root VC's NIB file.

[Nikh]

While loading nib file all outlets are resolved and if there is no corresponding property/selector it raises the error. If the difference with paid version in 1-2 outlets i'd recommend to set them programmatically, in applicationDidFinishLoading.

[shnaps]

Originally Posted by Nikh

While loading nib file all outlets are resolved and if there is no corresponding property/selector it raises the error. If the difference with paid version in 1-2 outlets i'd recommend to set them programmatically, in applicationDidFinishLoading.

Thanks for the suggestion....

Actually, that's what I am trying to do by having the alternate nib file in which the IBOutlets for the iAd are not present. The nib file is ready to go - however, I can't figure out how to select the root nib file for the appropriate version of the app.

[Nikh]

If you mean MainWindow.nib, you can try to use defines in info.plist, as it is preprocessed.

[shnaps]

Originally Posted by Nikh

If you mean MainWindow.nib, you can try to use defines in info.plist, as it is preprocessed.

Thanks - and i found the same suggestion at

iphone - how do i change the default ViewController in xcode - Stack Overflow