UINavigationBar/Status Bar issue in IOS7

Question

Final EDIT

(Rather than having an overly long question with edits making a final edit for clarification, please see other edits if needed).

Controller Setup

I have an application that is setup as follows:

InitialViewController (subclass of ECSlidingViewController)

Main Navigation Controller (subclass of UINavigationController)

Main Home View Controller (subclass of UIViewController)

---

In the viewDidLoad of the initialViewController I load the main navigation controller in with the Home View Controller as its root.

self.topViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"MainNavVC"]; 

---

The Issue

On the first load of the application the status bar and navigation bar are seperated.

This is the desired effect.

However, I then load a modal view controller and close it, using the standard methods:

[self performSegueWithIdentifier:@"LoadSelectOpponentVC" sender:self]; 

Then close with:

[self dismissViewControllerAnimated:YES completion:nil]; 

This in turn causes the main navigation controller (holding the home view controller) to display the status bar incorrectly and overlapping:

Testing

1. The plist setting is set to YES - View controller-based status bar appearance
2. I have tried setting the edgesForExtendedLayout to the relevant none, but no change.

Logging

I have tried to log out some frames to see where the issue occurs:

On first Load:

Main Nav VC - View Frame - {{0, 0}, {320, 480}}

Main Nav VC - Nav Bar Frame - {{0, 0}, {320, 44}}  Initial VC - View Frame - {{0, 0}, {320, 480}}  Home VC - View Frame - {{0, 0}, {320, 480}} -- viewDidLoad Home VC  Home VC - View Frame - {{0, 64}, {320, 416}} -- viewWillAppear Home VC  --- After Modal is opened/closed ----  Home VC - View Frame - {{0, 64}, {320, 416}} -- viewWillAppear Home VC  Main Nav VC - View Frame - {{0, 0}, {320, 480}} -- viewWillAppear Main Nav  Main Nav VC - Nav Bar Frame - {{0, 20}, {320, 44}} -- viewWillAppear Main Nav  Home VC - View Frame - {{0, 44}, {320, 436}} -- viewDidAppear Home VC 

Answer 1

Did you try Apple recommendation about "Preventing the Status Bar from Covering Your Views": https://developer.apple.com/library/content/qa/qa1797/_index.html

And did you have a look at "UIBarPositioningDelegate": https://developer.apple.com/documentation/uikit/uibarpositioningdelegate

Answer 2

In iOS 7.0 UIViewController works by default this way. View will be full screen if you are using UIViewController inside UINavigationController and the navigationBar is visible.

If navigationBar is visible do following. ==>

self.edgesForExtendedLayout = UIRectEdgeNone 

if navigationBar is hidden do following . ==>

Adjust all the UIView elements by shifting 20 points

If you use Interface builder, you can use iOS6/7 deltas: First, "view as iOS 6.0", then set a delta of "20" to achieve the +20 offset in iOS 7