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Re: Hang when Nib is loaded
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Re: Hang when Nib is loaded


  • Subject: Re: Hang when Nib is loaded
  • From: Manfred Schwind <email@hidden>
  • Date: Fri, 11 May 2007 17:30:49 +0200

Controller init look like this..


- (id) init { self = [super init];

NSApplicationLoad(); // Needed for Carbon based applications which call into Cocoa

        if (! [NSBundle loadNibNamed:@"CampaignWindow" owner:self]) {
                NSLog(@"failed to load CampaignWindow nib");
        }

        sharedController = self;
        return self;
}


When I activate C-source [*] via menu in my Carbon application it hangs.. I've looked up this from the GDB being attached to the process..
Shocking endless loop..

Most probably you have an instance of your Controller inside the nib. This would explain the endless loop:


You start instantiating a Controller in code; init is called for that Controller.
In the init method, you load the CompaignWindow.nib (with your Controller as file's owner).
When Cocoa loads the nib, it instantiates another Controller (because you created an instance with Interface Builder in that nib).
The init method of this second Controller (just loaded from the nib) is also called ...
and so the second Controller also loads a nib that has a third Controller within ... and so forth and so forth ...


The solution:
Open the nib in Interface builder and remove all Controller instances you may have created in the nib.
Instead, click on the File's Owner icon and change the "Custom Class" of that thing to "Controller".
Every connection you have made to your Controller instance then has to be made to the File's Owner.


Regards,
Mani
--
http://www.mani.de
iVolume - Loudness adjustment for iTunes.
LittleSecrets - The encrypted notepad.


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  • Follow-Ups:
    • Re: Hang when Nib is loaded
      • From: Yakov Zaytsev <email@hidden>
    • Re: Hang when Nib is loaded
      • From: Yakov Zaytsev <email@hidden>
References: 
 >Hang when Nib is loaded (From: Yakov Zaytsev <email@hidden>)

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