Ios – How to check if a view controller is presented modally or pushed on a navigation stack

iosobjective-cswiftuinavigationcontrolleruiviewcontroller

How can I, in my view controller code, differentiate between:

  • presented modally
  • pushed on navigation stack

Both presentingViewController and isMovingToParentViewController are YES in both cases, so are not very helpful.

What complicates things is that my parent view controller is sometimes modal, on which the to be checked view controller is pushed.

It turns out my issue is that I embed my HtmlViewController in a UINavigationController which is then presented. That's why my own attempts and the good answers below were not working.

HtmlViewController*     termsViewController = [[HtmlViewController alloc] initWithDictionary:dictionary];
UINavigationController* modalViewController;

modalViewController = [[UINavigationController alloc] initWithRootViewController:termsViewController];
modalViewController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self presentViewController:modalViewController
                   animated:YES
                 completion:nil];

I guess I'd better tell my view controller when it's modal, instead of trying to determine.

Best Solution

Take with a grain of salt, didn't test.

- (BOOL)isModal {
     if([self presentingViewController])
         return YES;
     if([[[self navigationController] presentingViewController] presentedViewController] == [self navigationController])
         return YES;
     if([[[self tabBarController] presentingViewController] isKindOfClass:[UITabBarController class]])
         return YES;

    return NO;
 }
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