viewcontroller

My program has a while-loop that runs some code, generating various text statements as it goes along. The problem is that the UILabel only prints the last line of text in the series (my understanding is because it iterates too quickly). How do I get the label to print all of the text encountered, like one would see in console output? I looked at this link but the example doesn't seem to match my situation and not sure how to implement the fix (if that's even the right one): Update Label In While Loop Swift class ViewController: UIViewController { var locationArray = ["Place A", "Place B",

I've read several posts on this issue but none of them solved my problem. I'm coding an app where I have to click on a button ("Prepare") to go to the following ViewController. When the button is clicked, it also passes data between the two view controller. The problem is, when I click the button, the following ViewController loads twice. Thus, if I want to go back I have to go back through two same ViewController. I've checked the segue, the class names and files names but nothing fixes it. I've also created a new project and rewritten all the code from the beginning but in the end, it still

First, I create a MainViewController. Then in MainViewController, I do [self presentViewController:modalViewController animated:YES completion:nil]; modalViewController.modalPresentationStyle = UIModalPresentationFormSheet; When I dismiss the modalViewController, On iPhones(except iPhone 6+), viewDidAppear of MainViewController is called. On iPads and iPhone 6+, viewDidAppear of MainViewController is not called. The logic is to called a function when the modalViewController is dismissed. How can I know when the modalViewController is dismissed. You can use a delegate to call your function in

I'm trying to pass the ILTItem variable into my ILTViewController, triggered by AppDelegate.swift when the user launches my app via a deeplink. The code I have errors with: Cannot call value of non-function type 'String' on the line where I define ilt . Here's the code I have at the moment: let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate var ilt = ILT(homeworkID: 1234, title: "History ILT", subject: "History", teacher: "Miss A Smith", teacherCode: "asmith", studentID: 12345, description: "Description....", due: 1450137600, status: "In Progress", hasAttachments:

I am using NSTimer to look for updates in my firebase database. I have put the code inside my viewDidLoad() . NSTimer.scheduledTimerWithTimeInterval(5.0, target: self, selector: #selector(DriversInterfaceViewController.CheckFormularChild), userInfo: nil, repeats: true) When the user has received a file in the database I want the user to goto another ViewController . The problem is that either the old ViewController is running in the background or the timer does not stop when changing View Controller . let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil) let nextViewController

Hii...i am new to iPhone programming..can anybody help me out please...!! I have multiple viewControllers..in First ViewController called HomeViewController i called the method [self presentModalViewController:aboutViewController animated:YES]; in a IBAction for aboutButton to move to AboutViewController and in the AboutViewController i called the method [self presentModalViewController:ContactUsViewController animated:YES]; to move to that view controller and one more method [self dismissModalViewControllerAnimated:YES]; to go back to HomeViewController. in the 3rd, ContactUSViewController i

I would like to ask some suggestion about how to restore a viewControllers state. Like in the app called "Pic Collage" when you create a card and save it and later restore it. If you really want to learn about state preservation, see WWDC 2012 video, Saving and Restoring Application State on iOS . But, it's also just as likely that the app in question is simply saving the model data (the object model that represents this card) in persistent storage, and when the app re-starts, it simply loads that model data again. There are a whole bunch of possible technologies for persistent storage ranging