iOS Why is this code crashing my program

[cis4life]

I have this code snippet but its crashing the application.

- (void)viewDidLoad 
{
   BlueViewController *blueController = [[BlueViewController alloc]   initWithNibName:@"BlueView" bundle:nil];
   self.blueViewController = blueController;
   [self.view insertSubview:blueController.view atIndex:0];
   [blueController release];
}

This line in the code is making the app crash...
[self.view insertSubview:blueController.view atIndex:0];

if i commet it out, the app works, when I comment it back in, it breaks?

Why?

Cedric

 

[dejo]

Crashes how? Are you getting a run-time error? We need more details.

 

[cis4life]

the programs just stops and says it stopped unexpectedly. When I remove that line, the program loads up, but of course the view doesn't load (i commeted out that line)

Cedric

 

[robbieduncan]

Probably because you are trying to insert a UIViewController instead of a UIView. Check the documentation for UIView.

 

[Saladinos]

Try

[self.view insertSubview:[self.blueViewController view] atIndex:0];

 

[BlackWolf]

is that line you posted the exact line the app CRASHES or is it just the one causing your crash?

because I guess the release-line is the real bad guy. Because insertSubview probably sends a retain message to the VIEW, but not the viewController ... or so I guess. something like that.

 

[dejo]

the programs just stops and says it stopped unexpectedly.

No error messages or hints in the crash log?

 

[NeilBright]

Hi,

Did anyone find a solution to this?

Thanks.

 

[seepel]

Is it possible that in the nib the view controller isn't connected to the view?

 

[Thomas Harte]

Is it possible that in the nib the view controller isn't connected to the view?

I second this suggestion. I believe insertSubview:nil will crash.

A more useful thing to do would be to run in the simulator using GuardMalloc and post everything that appears on the console.