Instead of push segue how to replace view controller (or remove from navigation stack)?

Question

I have a small iPhone app, which uses a navigation controller to display 3 views (here fullscreen):

Answer 1

Use below code last view controller You can use other button or put it your own instead of cancel button i have used

- (void)viewDidLoad
{
 [super viewDidLoad];

 [self.navigationController setNavigationBarHidden:YES];

 UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(dismiss:)];

self.navigationItemSetting.leftBarButtonItem = cancelButton;

}

- (IBAction)dismissSettings:(id)sender
{

// your logout code for social media selected
[self.navigationController popToRootViewControllerAnimated:YES];

}