presentviewcontroller

I am getting following warning when I try to present a ActivityController on navigation controller, Attempt to present <UIActivityViewController: 0x15be1d60> on <UINavigationController: 0x14608e80> whose view is not in the window hierarchy! I have tried to present view controller by following code, UIActivityViewController * activityController = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:applicationActivities]; activityController.excludedActivityTypes = excludeActivities; UIViewController *vc = self.view.window.rootViewController; [vc

I'm using the presentViewController:animated:completion: method to go to another view controller. This is my code: AddTaskViewController *add = [[AddTaskViewController alloc] init]; [self presentViewController:add animated:YES completion:nil]; This code goes to the other UIViewController but the other controller is empty. I've always been using storyboards but now I need this to be done in code. If you're using a storyboard, you probably shouldn't be using alloc and init to create a new view controller. Instead, look at your storyboard and find the segue that you want to perform; it should

I want to present a UIViewController programmatically which should show up (or not, rather) with transparent background. I want it for iOS 7.0 and above. I've find myself many questions (and answers) but they weren't able to help me. Here's the view hierarchy of my app. I'm using a side menu controller (RESideMenu). I have a rootView (base from RESideMenu) -> Showing a Center controller (along with a left view controller) in UINavigationController . In requirements, I'd like to present a view controller From a pushed view controller (in navigational hierarchy) From a presented view controller

I programatically have multiple View Controllers in an iOS Swift Project. I do not have the storyboards and would like to avoid them if possible. Is there a way to switch to another viewcontroller.swift file (We will call it view2.swift ) and have it be part of a function that a button calls? I have tried the following: let storyboard: UIStoryboard = UIStoryboard(name: "myTabBarName", bundle: nil) let vc: UIViewController = storyboard.instantiateViewControllerWithIdentifier("myVCID") as UIViewController self.presentViewController(vc, animated: true, completion: nil) The above works with

I have looked at all the tutorials I can find on this one, and I still don't have the answer. I need to call another view from the code. I am using UIStoryboards . I have changed the view many times by control-dragging from UIButtons , but now it must be from the code. I am trying to call the info page from the main menu if it is the first time the user has opened the app. I cannot seem to find a way to change the views from the code, however. All my views are controlled by the same files ( ViewController2 ). The identifier of my main menu is ViewControllerMain , and the identifier of the info

I'm trying to present a ViewController if there is any saved data in the data model. But I get the following error: Warning: Attempt to present * on *whose view is not in the window hierarchy" Relevant code: override func viewDidLoad() { super.viewDidLoad() loginButton.backgroundColor = UIColor.orangeColor() var request = NSFetchRequest(entityName: "UserData") request.returnsObjectsAsFaults = false var appDel:AppDelegate = (UIApplication.sharedApplication().delegate as AppDelegate) var context:NSManagedObjectContext = appDel.managedObjectContext! var results:NSArray = context