ios - How can a modal view controller be dismissed if the presenting view controller is changed? -


I am presenting a modal view controller on the iPad that changes the presented view controller during the presentation. For example:

  1. A visual controller VC presents the Model View Controller when the user selects a cell in the table view.
  2. The user has been designated a Model Model Controller and the second VC has been opened in the first place. Importantly, the visual controller is of the same type before changing the example.
  3. The modal view controller can not be dismissed or the exception EXC_BAD_ACCESS is generated.

    It is understandable to fail: Current view controller is no longer available. In fact, how would I reject this presented Model View Controller from a different Presented View Controller?

    I have already code:

    ViewController1.m 

      - (minus) showModalViewController: (UIViewController *) ViewController {UINavigationController * navigationController = [[UINavigationController alloc] initWithRootViewController: ViewController]; Navigation Controller Model Presentation Style = UIModal Presentation Form Sheet; ViewController.navigationItem.rightBarButton = [[UIBarButton alloc] initWithBarButtonSystemItem: UIBarButtonSystemItemDone Target: Self Operation: @selector (dismissModalViewController)]; [Self-present ViewController: Animation Navigation Controller: Yes Completed: Zero]; } - Dismiss (zero) Modelual controller {[Self-deleted view controller permission: Yes complete: zero]; [Unselect SelfTableViewValuePath: [SwavableView Index selected for text] Animated: Yes]; }    
     
     
     Thank you for your suggestions, but I used to solve this problem using the delegation The submitted view controller defines a delegate to inform when an action occurred  
     ChildViewControler.h:.  
      @protocol ChildViewControllerDelegate & LT; NSObject & gt; - (Zero) ChildView: (ChildViewController *) ChildView Selection ITM: (item *) items; @end   
     ChildViewController.m:  
      // interface @property (nonatomic, weak) id & lt; ChildViewControllerDelegate & gt; Representative; // In implementation - (zero) closeView: (item *) anItem {[self. Delegate childView: self didSelectItem: anItem]; }   
     ViewController1.m:  
      - (minus) showModalViewController: (UIViewController *) ViewController {UINavigationController * navigationController = [[UINavigationController alloc] initWithRootViewController: ViewController ]; Navigation Controller Model Presentation Style = UIModal Presentation Form Sheet; viewController.navigationItem.rightBarButton = [[UIBarButton alloc] initWithBarButtonSystemItem: UIBarButtonSystemItemDone goal: self action: @selector (dismissModalViewController)]; // different view controller types can be passed here so require Czech ... if (viewController.class == [ChildViewController square]) {((ChildViewController *) viewController) .delegate = self; [Self-present ViewController: Animation Navigation Controller: Yes Completed: Zero]; } - (zero) childview: (ChildViewController *) childView didelectItem: (item *) item {[self dismissViewControllerAnimated: Yes complete: zero]; [Unselect SelfTableViewValuePath: [SwavableView Index selected for text] Animated: Yes]; Take the necessary action with

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