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Questions tagged [viewcontroller]

viewcontroller is a design pattern which is a hybrid of the view and controller components of the MVC architecture

A viewcontroller responds to events by dispatching calls to a mapping table which matches views and controllers with each event target. It is implemented as an object in many frameworks, including:

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Could not cast value of type 'AppName.AppDelegate'

I've a ViewController which is named mapViewController. Inside that controller I've a button which is a play button. If the button is clicked a boolean named "Play" will change from false to true. Let's jump to the point of this thread: Once I…
Putte
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I seem to have a retain cycle with a weak delegate

I'm using a networker inside of a view controller. The networker has a weak delegate reference to the view controller. After a view controller is dismissed I kick off a timer to check whether the vc has been released. I noticed that it's not being…
MichaelGofron
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Use of undeclared type 'PostTableViewCell'

Can't seem to figure out why I'm getting this error. I've attached two pieces of code below, any help is very appreciated private func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: IndexPath) -> UITableViewCell { var…
Tom
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Detect which viewController presented the SideMenu and implement proper functionality for its presentation

I'm using the following pod for my SideMenu functionality. Now, if I opened it from XYZ viewController and selected the row which again opens the XYZ viewController, the page is being pushed, but instead, I want the SideMenu to be dismissed, no to…
Emma V.
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Can't instantiate view controller Swift

My code worked well so far. I do not see what I could change to make it bug like that. When I want to return the user to the home page, it works, but a few seconds after the previous ViewController reappears on the screen. I've tried to change "as!…
itinous
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using TabBarController

I'm developing a TabBarController application in iPhone. In the First tab (Lets Say Tab1), I navigate the viewControllers for example (view1, view2, view3), now I'm on view3 of Tab1, then I switch the tab and do some work there. Now when I get back…
Arsalan
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How to show many view controllers without many xibs

Say I want to show 300 words, one in a page, connected by Swipe Gesture or Button. It is definitely feasible to create 300 view controllers in the storyboard and connect them together. But is there a better/faster way to do this without numerous…
Shuichi
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Add Information / Details to a TableView row

I have a TableView with items on the first ViewController. When I click on a row i perform a segue to display a second ViewController with a TextField on it. Now i want to write Informations to the TextField and link that information to the selected…
Winz
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Display a viewcontroller in Xcode/swift using if else for login

I want a to have a conditional if statement to be run when the button is clicked. Basically, it will be if CodigoError is different from 0000 i want to stay in the same view controller which is the login, but if it's correct i want to display the…
Melisa Bravo
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Using didSet causes function to be run multiple times

In order to obtain values from a previous viewController, I use a didSet on a structure. class ReviewViewController: UIViewController, UITextFieldDelegate { var detailBuilding: Building? { didSet { configureView() } } override…
RufusV
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Different view controllers loading same text

I am a beginner in swift and programming in general and I am trying to make a quiz app and I want the app to go from a start screen, to s selection menu, and then to the quiz screen. The problem is when I press the second category button, it brings…
Abdullah Bismil
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Present View within UITabBarController & UINavigationController Programmatically

We are working on an iOS app, which has a RootVC, where 4 TABs placed programmatically, each Tab has a separate ViewController. One of the Tabs responsible for search. When the user taps the search button on this specific ViewController, we'd like…
Attila Marosi
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How do I store a calculated result in UserDefaults to display in a "results" View controller

First time poster so sorry for the incorrect format/length of the question. I am building an app in Xcode that allows users to input various inputs among numerous view controllers and then have output in a single view controller with results…
kbalakumaran
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Can't set delegate between ViewController and SKScene

I want to set delegate between my GameViewController and SKScene file but facing error. My goal is to call method from SKScene file. Error is : Value of type 'GameScene' has no member 'gameViewControllerDelegate' What am i doing wrong ? Thanks in…
Emin Turk
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Please help: UINavigationController and view controllers memory management

I have a strange problem with a method is called each time a button is pressed: - (void)launcherView:(TTLauncherView*)lnchr didSelectItem:(TTLauncherItem*)itm { MyObject* obj = ... MyViewController* detailView = [[MyViewController alloc] init];…
Dmitri Sologoubenko
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