Question

Simple question…

Why does this release crash my app when I click on a button that is on the overlayController view?

    OverlayViewController* overlayController = [[OverlayViewController alloc]
                                                initWithNibName:@"Overlay"
                                                         bundle:nil];
    self.picker.cameraOverlayView = overlayController.view;
    [overlayController release];

Said another way, how can the OverlayViewController methods be called outside of this viewDidLoad method?

Strange… I do not understand why my app is working 🙂

Answer 1

Well, I can answer the second question easily enough:

How can the OverlayViewController methods be called outside of this viewDidLoad method?

Simply add a property to your viewController:

MyViewController.h:

@interface MyViewController : UIViewController {
    OverlayViewController* overlayController;
}
@property (nonatomic, retain) OverlayViewController* overlayController;
@end

MyViewController.m:

@implementation MyViewController
@synthesize overlayController;

- (void)viewDidLoad {
    OverlayViewController* ovc = [[OverlayViewController alloc]
                                   initWithNibName:@"Overlay" bundle:nil];
    self.overlayController = ovc;
    [ovc release];
    self.picker.cameraOverlayView = self.overlayController.view;
}

- (void)someOtherMethod {
    [self.overlayController someMethod];
}

- (void)dealloc {
    [overlayController release];
    [super dealloc];
}

@end