Questions tagged [viewcontroller]
viewcontroller is a design pattern which is a hybrid of the view and controller components of the MVC architecture
viewcontroller
2,796
questions
649
votes
28
answers
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Presenting modal in iOS 13 fullscreen
In iOS 13 there is a new behaviour for modal view controller when being presented.
Now it's not fullscreen by default and when I try to slide down, the app just dismiss the View Controller ...
- 16.4k
244
votes
20
answers
407k
views
How to dismiss ViewController in Swift?
I am trying to dismiss a ViewController in swift by calling dismissViewController in an IBAction
@IBAction func cancel(sender: AnyObject) {
self.dismissViewControllerAnimated(false, completion: ...
- 3,075
107
votes
16
answers
95k
views
In iOS, how to drag down to dismiss a modal?
A common way to dismiss a modal is to swipe down - How do we allows the user to drag the modal down, if it's far enough, the modal's dismissed, otherwise it animates back to the original position?
...
- 11.2k
100
votes
8
answers
257k
views
Swift programmatically navigate to another view controller/scene
I'm using following code to programmatically navigate to another ViewController. It works fine, but it some how hides the navigation bar. How do I fix this? (the navigation bar is created by embeding ...
- 1,623
97
votes
3
answers
67k
views
iOS Nested View Controllers view inside UIViewController's view?
Is it typically bad programming practice in iOS to have a nested view controller's view inside UIViewController's view? Say for instance I wanted to have some kind of interactive element that responds ...
- 2,864
95
votes
11
answers
151k
views
Programmatically switching between tabs within Swift
I need write some code to switch the view to another tab when the iOS app starts (so, for example, the second tab is shown by default rather than the first).
I'm new to Swift, and have worked out the ...
- 2,021
93
votes
16
answers
309k
views
How to Navigate from one View Controller to another using Swift
I'd like to navigate from one view controller to another. How can I convert the following Objective-C code into Swift?
UIViewController *viewController = [[self storyboard] ...
- 1,180
88
votes
2
answers
111k
views
How do I create a view controller file after creating a new view controller?
I am developing a tabbed application.
When I create a new view controller and link it to the tab bar controller, unlike the other two default view controllers, this one has no viewcontroller.swift ...
- 1,818
84
votes
14
answers
219k
views
Swift presentViewController
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....
- 4,430
81
votes
5
answers
123k
views
presenting ViewController with NavigationViewController swift
I have system "NavigationViewController -> MyViewController", and I programmatically want to present MyViewController inside a third view controller. The problem is that I don't have navigation bar in ...
- 2,388
68
votes
14
answers
107k
views
Loading ViewController from xib file
I had a MyViewController.swift and a MyViewController.xib presenting the layout of MyViewController.
I tried different methods to load this view controller including:
//1
let myVC = UINib(nibName: "...
- 2,713
60
votes
7
answers
93k
views
Xcode - How to connect XIB to ViewController Class
I created first my TestViewController.h and *.m. Afterwards my TestView.xib.
Now I need to tell my xib: "Yes, please take the class TestViewController as my File's Owner".
I open up my xib, go to ...
- 843
51
votes
10
answers
47k
views
Dismiss more than one view controller simultaneously
I'm making a game using SpriteKit.
I have 3 viewControllers: selecting level vc, game vc, and win vc.
After the game is over, I want to show the win vc, then if I press OK button on the win vc, I want ...
- 674
47
votes
5
answers
49k
views
Only ONE VIEW landscape mode
I finished my iOS app but I need to set only ONE view to landscape mode, the rest of the views can only be seen in portrait mode.
I'm using Xcode 5.1 and I created all of my Views by dropping in my ...
- 1,103
47
votes
9
answers
172k
views
Swift: Reload a View Controller
I need to refresh a view controller when a certain button is tapped. Simply activating viewDidLoad() does not seem to be working for what I need to do. However, when I leave the view controller and ...
- 2,800
43
votes
7
answers
106k
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Cannot call value of non-function type 'String'
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 ...
- 1,108
33
votes
1
answer
26k
views
Equivalent of Fragment (Android) in iOS
I want to know if there is a way to use some view controllers within a view controller which provides the same functionality as Fragments in Android?
I want to use custom view controllers so I do not ...
- 3,839
31
votes
6
answers
21k
views
How to Sign Out of Google After Being Authenticated
So my app has the option to sign in with Google. Upon clicking the button that Google provides, a web view opens and has the user input their credentials. After allowing the app to access their ...
- 681
28
votes
2
answers
37k
views
Adding swift file to new view controller in xCode? (easy)
I'm just starting out in xCode 6, and I can't seem to figure out how to add a new swift-file to the new view controllers I add in the interface builder.
Any tips on how to proceed would be ...
- 1,934
27
votes
1
answer
11k
views
Difference between a Scene and a View in iOS
I'm new to iOS I'm having trouble understanding the difference between scene and a view. Unfortunately Apple's documentation isn't helping me. I read that a scene is what you see on the screen. But ...
- 754
26
votes
5
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19k
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UIScrollView prevents touchesBegan, touchesMoved, touchesEnded on view controller
I am handling touches for a couple of my UI components in my view controller (custom subclass of UIViewController). It has methods touchesBegan:withEvent:, touchesMoved:withEvent:, and touchesEnded:...
- 9,078
25
votes
2
answers
25k
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Difference between presentModalViewController and presentViewController?
In iOS 5 SDK, there're two methods of UIViewController, presentModalViewController:animated: and presentViewController:animated:completion:.
What's the difference between these two method?
The ...
- 1,427
21
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12
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views
setValue:forUndefinedKey:]:
FinalViewWithSending *newView = [[FinalViewWithSending alloc]initWithNibName:@"FinalViewWithSending" bundle:nil];
newView.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self ...
- 364
21
votes
3
answers
44k
views
Open Specific View when Opening App from Notification
I have just added push notifications to my app. I'm wanting to have so that when a user opens the app from a notification, it will open a specific view controller and not my rootViewController. Here ...
- 3,600
21
votes
4
answers
36k
views
Swift: How to access in AppDelegate variable from the View controller?
I would like to write in the text or csv (prefer) file the variable from the view controller.
Indeed I am doing a drawing app and I would like to write in the file the current position of the finger....
- 211
19
votes
3
answers
5k
views
Deleted class drops error message unknown>:0: error: no such file or directory:
So me and some friends working on a bitbucket project and already realized that bitbucket sometimes doesn't sync all the files. But here is what happened:
I continued working and created an class, I ...
- 1,257
18
votes
4
answers
26k
views
iOS - Toolbar not showing
Using the storyboard I created a new screen for a second View controller and added a Toolbar at the bottom. But when the view is shown, the toolbar doesn't appear. I'm using Segue to change views.
...
- 695
18
votes
2
answers
25k
views
How to create a confirmation Pop Up when pushing Back button in iOS?
I want to add a pop up when someone pushes the "Back" button of my iOS App, to ask the user if he really wants to come back. Then, depending on the user's response, I would like to undo the action or ...
- 331
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votes
2
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22k
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Class has no initializers: Swift Error
I have a problem with my ViewController.
My code has an error about initializers and I can't understand why.
Please, take a moment to look at my code:
import UIKit
class ViewController: ...
- 181
17
votes
3
answers
14k
views
Understanding View Controller Nesting in iOS
Ive been tearing my hair out over the last couple of days trying to understand this one seemingly basic concept of iOS development:
If I want to have two or more View Controllers displayed and usable ...
- 1,444
16
votes
4
answers
37k
views
Swift 3, Xcode 8 Instantiate View Controller is not working
Xcode 8 when it compiles says to change instantiate viewcontroller with identifier to simply, instantiate view controller. I did that, why does it give two errors?
I'm working with Swift 3. I want ...
- 301
15
votes
6
answers
8k
views
Why do my files keep disappearing from xcode's project navigator?
The project I'm working on started as a single view application with storyboard, and I've added 2 more view controllers, each with a .m and a .h file. However, every time I save, quit, and then ...
15
votes
2
answers
17k
views
Dismiss pushed view controller
So I have a view controller which I display as follows:
func showProfileForTrainer(trainer: Trainers) {
let viewPTProfileVC = ViewPTProfileVC()
viewPTProfileVC.trainer = trainer
self....
- 695
15
votes
2
answers
47k
views
How to dismiss the current ViewController and go to another View in Swift
I am new to Swift and I want to know how to dismiss the current view controller and go to another view.
My storyboard is like the following: MainMenuView -> GameViewController -> GameOverView. I want ...
- 2,931
15
votes
2
answers
52k
views
Presenting a view controller programmatically in swift
Hi I am trying to convert the following objective C code into swift to navigate from one view controller to another view controller when a button is clicked. any help would be much appreciated
This ...
- 277
15
votes
3
answers
12k
views
Set rounded corners on UIimage in UICollectionViewCell in swift
I have a simple problem that I cannot find a solution to on google, the docs or here.
I have a Collectionview in my view controller. I have created a custom cell, DescriptionCell, that contains a ...
- 183
14
votes
3
answers
20k
views
Difference between AppDelegate.m and View Controller.m
Could anyone tell me when we use the AppDelegate.m and AppDelegate.h during iPhone programming? I have used only the ViewController.m and ViewController.h for basic learning. I just want to know when ...
- 12.2k
14
votes
2
answers
8k
views
dismiss share extension custom viewcontroller
I am trying to create a custom view controller to be used with a share extension. Everything works, but I don't know how to dismiss the custom view controller. Basically I launch my share extension ...
- 369
14
votes
5
answers
17k
views
Presenting view controllers on detached view controllers
I have sideViewController with a button and Action, which present new view controller by clicking this button.
class sideViewController: UIViewController {
@IBOutlet var buttonVC1 : UIButton!
...
- 2,388
13
votes
4
answers
23k
views
Swift - Present another view controller with its navigation bar
I have two ViewControllers -- one with storyboard and one without. Both of those view controllers have their own Navigation Bar at the top. Now when I use self.presentViewController(...
- 450
13
votes
1
answer
8k
views
ios: how to dismiss a modal view controller and then pop a pushed view controller
I have a view controller B that is pushed onto the navigation stack by root view controller A and this view controller B needs to display an alternative view if its model is in a certain state so it ...
- 1,319
13
votes
6
answers
19k
views
Memory: object not release after view controller dismiss, with ARC
I have 2 view controller,
FirstViewController - > SecondViewController via
[self presentViewController:SVC animated:YES completion:nil];
on SecondViewContrller when I do
[self ...
- 2,810
12
votes
2
answers
26k
views
Getting appdelegate value from viewcontroller
In Appdelegate.h
I imported the playerviewcontroller in both Appdelegate.h and Appdelegate.m files.
@class PlayerViewController;
@property(nonatomic)float volumeDelegate;
In Appdelegate....
- 1,706
12
votes
6
answers
16k
views
What is better place for loading data from API- viewDidLoad, viewWillAppear or viewDidAppear?
I am making an IOS app where i am calling an API in viewDidLoad method of view controller. Now i want to reload the same view controller with the data that comes from server. How many ways are there ...
- 583
12
votes
2
answers
12k
views
ios - Navigation between multiple NavigationControllers
I'm trying to understand a behavior of navigating between ViewControllers with (and without) using a NavigationController and I'm misunderstanding some things while reading articles and docs so I ...
- 444
11
votes
3
answers
10k
views
Pass data from ViewController to Representable SwiftUI
I am doing an object detection and used UIViewControllerRepresentable to add my view controller. The thing is that I can't pass data from my ViewController to my SwiftUI view. I can print it tho.
Can ...
- 233
11
votes
4
answers
18k
views
Swift passing calculated data back to previous view controller
I am creating my first simple budgeting app. Basically, I take a few user inputs like monthly income & savings goal. Then they click "start", & the app calculates stuff such as, their daily ...
11
votes
5
answers
12k
views
How to reference the current Viewcontroller from a Sprite Kit Scene
I'm having a hard time finding the answer to this question I assume is not that hard.
How can I reference methods and properties defined on a viewcontroller from a SKScene ?
And building on that: ...
- 1,148
11
votes
5
answers
18k
views
How can I remove a view from navigation controller
I want to call a new view controller and remove the current view controller from the navigation controller stack.
For example. I am in view controller A and I call B.
Now I have in the stack A , B.
...
- 10.2k
11
votes
2
answers
18k
views
How to access ObjectAtIndex in tabBarController with Swift?
i used to say in obj-c
[self.tabBarController.viewControllers objectAtIndex:1];
but now in swift no ObjectAtIndex any more
self.tabBarController.viewControllers.ObjectAtIndex
Update
ok i am ...
- 2,340