How do I turn off view controller?

How do I turn off view controller?

You can do this through Storyboard only.

1. Open Storyboard.
2. Right click on Cancel button and drag it to previous view controller, where you want to move back to previous controller.
3. Now release the right click and you can see some actions which performs on cancel button.
4. Now choose “popover present” option from list.

How do I remove ViewController from memory?

You can’t remove a view controller from within itself (i.e. viewDidDisappear) – what you need to do is to remove all references to it, at which point ARC will deallocate it.

What is UIViewController in iOS?

A UIViewController is an object which manages the view hierarchy of the UIKit application. The UIViewController defines the shared behavior and properties for all types of ViewController that are used in the iOS application. The UIViewController class inherits the UIResponder class.

How do I dismiss all view controllers in Swift?

“swift dismiss all presented view controllers” Code Answer’s

1. if let first = presentingViewController,
2. let second = first. presentingViewController{
3. first. view. isHidden = true.
4. second. dismiss(animated: true)

How do I dismiss a specific view controller in Swift?

Use unwind segue instead of using RootViewController. Using unwind you can go back to any ViewController. DismissViewController always send the controller out from NavigationController. Show activity on this post.

How do I delete a Subview in Swift?

Linked

1. iOS Swift 3 – Remove Overlay UIView after Panel Tap.
2. Detect UIGestureRecognizer tap and release to show and remove UIView.

What is memory leak in iOS?

As per Apple, a memory leak is: Memory that was allocated at some point, but was never released and is no longer referenced by your app. Since there are no references to it, there’s now no way to release it and the memory can’t be used again.

What is retain cycle in iOS?

That is called a retain cycle. Memory leak occurs when an amount of allocated memory space cannot be deallocated for some reason in iOS applications, the usage of memory for that application always grows while the app is running.

What is loadView in iOS?

loadView() When using Storyboards, this is the method that will load your nib and attach it to the view , but when instantiating view controllers manually, all this method does is create an empty UIView . You can override it to change this behaviour and add any kind of view to the view controller’s view property.

What is the purpose of a view controller?

A view controller acts as an intermediary between the views it manages and the data of your app. The methods and properties of the UIViewController class let you manage the visual presentation of your app.

How do I dismiss all presented view controllers?

How do I remove a view in Swift?

How do I dismiss a two view controller in Swift?

“dismiss two view controllers at once swift” Code Answer’s

1. if let first = presentingViewController,
2. let second = first. presentingViewController{
3. first. view. isHidden = true.
4. second. dismiss(animated: true)

How do I dismiss all modal view controllers in Swift?

Navigate to the view controller that initiates the unwind action.

1. Control-click the button (or other object) that should initiate the unwind segue. This element should be in the view controller you want to dismiss.
2. Drag to the Exit object at the top of the view controller scene.