Cannot dismiss modally presented views by using setSelectedIndex - ios

Question

I am looking today for some insight into the issue that I am facing with my app.
I have a tab bar based application (3 tabs). In tab #2, here's the sequence of events.
"Add" button clicked in the rootView of tab #2.
Table View with navBar presented modally (PresentViewController).
Table Row touched.
New UINavigationController presented with it's rootViewController showing a few images
One of the images is selected
Present new view modally with navBar (presentViewController) with Image and details.
7 Upon clicking the image, I want to go back to the root view of tab # 2. (and I am using delegates for this)
My problem is that
=> Unless I dismiss each and every modal view, I am unable to go to the tab# 2.
=> If I am using delegate and setting the selectedTabIndex = 1 in the delegate the rootViewController of tab #2 should get displayed.
=> But In actuality that doesn't happen till i dismiss both modal view controllers. Why is that?
I read in the apple documentation that if you dismiss a modal view controller then all the subsequent view controllers would be dismissed as well. This however does not seem to be the case. I can get back to the root view controller of tab#2 only after I dismiss each and every modal view.
//AppDelegate :
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.tabBarController = [[UITabBarController alloc] init];
self.secondViewController = [[SecondViewController alloc] initWithNibName:nil bundle:nil];
self.navControllerTwo = [[UINavigationController alloc] initWithRootViewController:self.secondViewController];
//navControllerOne and viewControllerOne are also init'd here
NSArray *viewControllers = [NSArray arrayWithObjects:self.navControllerOne, self.navControllerTwo, self.viewControllerOne, nil];
[self.tabBarController setViewControllers:viewControllers];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
// Then => 1. "Add" button clicked in the rootView of tab #2.
- (void)addItemButtonClicked:(id)sender
{
UIBarButtonItem *btn = nil;
AddItemViewcontroller *addItemController = [[AddItemViewcontroller alloc] initWithNibName:nil bundle:nil];
addItemController.delegate = self;
UINavigationController *addItemNavController = [[UINavigationController alloc] initWithRootViewController:addItemController];
//leftBaButton
btn = [[UIBarButtonItem alloc] initWithTitle:#"Cancel"
style:UIBarButtonItemStylePlain
target:self
action:#selector(addItemCancelButtonPressed:)];
addItemNavController.navigationBar.topItem.leftBarButtonItem = btn;
[self presentViewController:addItemNavController animated:YES completion:nil]; // First Modal View presented
}
//Then: => 2. Table View with navBar presented modally (PresentViewController).
// 3. Table Row touched.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
IGViewController *gvc = [[IGViewController alloc] initWithItemType:itemType]; // pre-determined item type
[self. navigationController pushViewController:gvc animated:YES];
}
//Then: 4. New UINavigationController presented with it's rootViewController showing a few images
// 5. One of the images is selected
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath;
{
UIBarButtonItem *btn;
UINavigationItem *navItem = [[UINavigationItem alloc] init];
UINavigationBar *navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.view.frame), 44)];
SIViewController *siViewController = [[SIViewController alloc] initWithNibName:nil bundle:nil];
siViewController.delegate = self.appDelegate.secondViewController; // Init'd in the app delegate
btn = [[UIBarButtonItem alloc] initWithTitle:#"Add item" style:UIBarButtonItemStyleDone
target:selectedItemViewController
action:#selector(selectedItemViewAddItemButtonPressed)];
[navItem setLeftBarButtonItem:btn];
navBar.items = [NSArray arrayWithObject:navItem];
[navBar setAutoresizingMask:UIViewAutoresizingFlexibleWidth];
[selectedItemViewController.view addSubview:navBar];
[self presentViewController:selectedItemViewController animated:YES completion:nil]; //second modal view presentd here
}
//Then: 6. Present new view modally with navBar (presentViewController) with Image and details.
// 7 Upon clicking the image, I want to go back to the root view of tab # 2. (and I am using delegates for this)
-(void)siViewAddItemButtonPressed
{
[self.delegate selectedItemViewAddItemButtonPressedForItem:self.selectedItem];
}
//And: Here's what the method in the siViewControllers delegate looks like:
//In this routine setSelectedIndex = 2 does not work until i dismiss both modally presented views
- (void)siViewAddItemButtonPressedForItem:(Item *)item
{
[self.presentedViewController dismissViewControllerAnimated:NO completion:nil]; // Dismiss modal
[(UINavigationController*)(self.presentedViewController) popToRootViewControllerAnimated:NO];
[self.presentedViewController dismissViewControllerAnimated:NO completion:nil]; //Dismiss modal
}