Cannot push back to view controller embed in Navigation Controller - objective-c

Question

I have created ViewController A (a.k.a vcA) and vcB embed in Navigation View Controller ,mapping child view controller in storyboard as classes.m
When I try to construct this redirect of view controller A->B->A , or to create vcA from vcB , by using :
A :
PairViewController * sliderVC = [self.storyboard instantiateViewControllerWithIdentifier:#"PairViewController"];
sliderVC.modalPresentationStyle = UIModalPresentationCurrentContext;
[self presentViewController:sliderVC animated:NO completion:nil];
sliderVC.view.backgroundColor = [UIColor clearColor];
B : ViewController *destinationController = [self.storyboard instantiateViewControllerWithIdentifier:#"ViewController"];
[destinationController setBle:_ble];
[destinationController setLeDevice:selectedDevice];
destinationController.modalPresentationStyle = UIModalPresentationCurrentContext;
[self presentViewController:destinationController animated:NO completion: nil] ;
The new A is created without any navigation bar appeared.
When I use
[self.navigationController pushViewController:destinationController animated:nil];
The xCode said for the exception ;
Cannot call pushNavigationItem:animated: directly on a UINavigationBar managed by a controller.'
Would you please tell me the way to create vcA from vcB , with my custom navigation bar keeping intact , not missing ?
In A I try to construct the navigation bar in this method but navigation bar turns nil if creating vcA from vcB
-(void)viewWillLayoutSubviews{
navigationBar= [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 44)];
}
- (void)viewWillAppear:(BOOL)animated {
[self.navigationController setNavigationBarHidden:NO];
navigationBar = self.navigationController.navigationBar;
[navigationBar setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor], NSForegroundColorAttributeName,
[UIFont fontWithName:#"TitilliumText22L-Medium" size:22.0], NSFontAttributeName,
nil] ];
UINavigationItem *navigationItem = [[UINavigationItem alloc] initWithTitle:#"FPV Control"];
UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 40, 20)];
[button setImage:[UIImage imageNamed:#"menu_back.png"] forState:UIControlStateNormal];
[button addTarget:self action:#selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
// UIBarButtonItem *buttonItemA = [[UIBarButtonItem alloc] initWithCustomView:button];
UIBarButtonItem *leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd
target:self action:#selector(buttonClicked:)];
[leftBarButtonItem setCustomView:button];
navigationItem.leftBarButtonItem = leftBarButtonItem;
UIButton *buttonA = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 70, 20)];
[buttonA setImage:[UIImage imageNamed:#"rc_logo.png"] forState:UIControlStateNormal];
UIBarButtonItem *buttonItemB = [[UIBarButtonItem alloc] initWithCustomView:buttonA];
navigationItem.rightBarButtonItem = buttonItemB;
[navigationBar pushNavigationItem:navigationItem animated:NO];
NSLog(#" navigaytion item : %#" , navigationItem);
NSLog(#" navigaytion bar : %#" , navigationBar);

Answer 1

So present your ViewController with NavigationController as below.
MyViewController *myViewController = [[MyViewController alloc] initWithNibName:nil bundle:nil];
UINavigationController *navigationController =
[[UINavigationController alloc] initWithRootViewController:myViewController];
//now present this navigation controller modally
[self presentViewController:navigationController
animated:NO
completion:nil];