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General Discussion

Posted by Liam Herbert
Liam Herbert
15,140 Points

AppDelegate issue

Hi After the modifications we mad in the Image Based Animation chapter the crystal ball app runs but it doesn't display any images. In the NSLog it says "There is no app delegate set. An app delegate class must be specified to use a main storyboard file." This is the code for main.m:

#import <UIKit/UIKit.h>

#import "BHAppDelegate.h"

int main(int argc, char * argv[])
{
    @autoreleasepool {
        return UIApplicationMain(argc, argv, nil, nil);
        NSStringFromClass([BHAppDelegate class]);    
    }
}

I have been trying to find what I should possibly be changing or weather I have missed a piece of syntax somewhere. Any help would be much appreciated.

Thanks, Liam

4 Answers

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

is you app delegate named BHAppDelegate? Did you rename your project or anything?

Liam Herbert
Liam Herbert
15,140 Points

No I have not renamed my project.

Liam Herbert
Liam Herbert
15,140 Points

What is the AppDelegate?

Stone Preston
Stone Preston
42,016 Points

you should have two files in your project, one named something similar to appDelegate.h and one named appDelegate.m In your case they should apparently be called BHAppDelegate.h and BHAppDelegate.m. The app delegate handles certain things like what happens when the app first finishes launching, when it enters the background, etc.

Liam Herbert
Liam Herbert
15,140 Points
Liam Herbert
Liam Herbert
15,140 Points

I have four:

  • BHViewController.h
  • BHViewController.m
  • BHCrystalBall.h
  • BHCrystalBall.m

As well as the Main.storyboard.

Stone Preston
Stone Preston
42,016 Points

So you are missing your app delegate files? That is the problem then. Are you sure they are gone? Not Anywhere in your project files? Maybe in the supporting files?

Liam Herbert
Liam Herbert
15,140 Points
Liam Herbert
Liam Herbert
15,140 Points

Oh yes they're under supporting files.

Stone Preston
Stone Preston
42,016 Points

and what are they named

Liam Herbert
Liam Herbert
15,140 Points

BHAppDelegate.h and BHAppDelegate.m

John W
John W
21,558 Points
John W
John W
21,558 Points

If this is still not resolved, feel free to zip your project up, upload it somewhere, and provide us the link to it. I can take a look at it for you.

Liam Herbert
Liam Herbert
15,140 Points

Thanks here is my project:

link

John W
John W
21,558 Points

that's just the project setting file, can you upload the entire project directory zipped as one file?

Liam Herbert
Liam Herbert
15,140 Points

No sorry. I tried to upload it to google drive but it moved the file from my mac to the google drive, and I without realizing this deleted the documents from google drive and so I have lost all my work.