pushviewcontroller

I am developing an app in Swift that, in gist, tells people the price of Bitcoin in various currencies. To select the currency, the user chooses from a list in a view controller with a UITableView. This is currencyViewController, and it is presented from my main screen, viewController. What I want to happen is that, when the user dismisses currencyViewController, it passes a string to a UIButton in the main viewController. Here's the prepareForSegue function that should pass the data: override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) { if (segue.identifier ==

I know that starting with iOS5 and the new UIViewController containment methods, you are supposed to call these methods together with addChildViewController: , removeFromParentViewController: and the transition method. I also know the proper order of calling them in the three scenarios. What I don't know is what exactly these methods do? If these were merely override points for subclasses of UIViewController I guess we wouldn't be required to call super when overriding. What can/will go wrong if I don't call willMoveToParentViewController: nil before removing a view controller or

Recently I updated my xcode project to work with iOS 7, but i faced a big problem. Because my whole application has only one background image (UIImageView added to key window) and all views are transparent, I face a problem when pushing UIViewController, because pushed view controller overlaps previous view (you can see it in the picture here: http://grab.by/qp0k ). I can predict that this is because in iOS 7 push transition has been changed, because now it slides half a screen. Maybe anyone knows how to fix this issue? This is how I set my key windows self.window = [[UIWindow alloc]

i have an navigation controller in my storyboard, but for one reason i have to make one segue programmatically, but how do i make a push segue programmatically? this is my code so far: - (IBAction)nextviewButton:(id)sender { HolesViewController *Holes = [self.storyboard instantiateViewControllerWithIdentifier:@"HolesViewController"]; Holes.nameString = self.NameField.text; [self presentViewController:Holes animated:YES completion:nil]; } Alternatively, I actually prefer to define a segue right in my storyboard, but rather than originating from the button, I have it originate from the view

In some of my application designs or for just some UIViews, following a navigationController's pushViewController, my new view will be shifted off the window by the height of the status bar. As a result, I will put this code stub in the viewDidLoad method. CGRect frameAt = [self.view frame]; CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame]; frameAt.origin.y += statusBarFrame.size.height; [self.view setFrame: frameAt]; It does not make sense to me that this is the intention of XCode and Interface Builder, so I suspect that I am doing something fundamentally wrong with

UINavigationController's documentation contains no pushViewController methods with a completion: parameter. I would go with @justMartin's answer . But below is another approach. push animation take 0.3 seconds.So, if you want to run some function here after completion use performSelector after 0.3 seconds of delay. [self performSelector:@selector(completedPushing:) withObject:nil afterDelay:.3]; OR After pushing the new viewController onto navigation stack ,the old viewController view is removed from view hierarchy.so this results in call of viewDidDisappear on old ViewController.You can write