From you image it seems like you presented the ViewController using push The dismissViewControllerAnimated is used to close ViewControllers that presented using modal Swift 2 navigationController.popViewControllerAnimated(true) Swift 4 navigationController?.popViewController(animated: true) dismiss(animated: true, completion: nil)
I don’t understand at all why people are complaining that “Margins would cause an outright crash on anything prior to iOS 8.“ Setting your constraints relative to margin in a xib file or storyboard DOES NOT make your app crash on iOS7, and it DOES NOT make a UI difference on your iOS7 device neither, … Read more
It’s possible in iOS 6 and later: You have to implement the method – (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(id)sender In your view controller. You do your validation there, and if it’s OK then return YES; if it’s not then return NO; and the prepareForSegue is not called. Note that this method doesn’t get called automatically when triggering … Read more
Simply grab a reference to the target view controller in prepareForSegue: method and pass any objects you need to there. Here’s an example… – (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { // Make sure your segue name in storyboard is the same as this line if ([[segue identifier] isEqualToString:@”YOUR_SEGUE_NAME_HERE”]) { // Get reference to the destination view controller … Read more