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How do I turn my view controller back on?

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How do I turn my view controller back on?

“go back to specific view controller swift” Code Answer

  1. let viewControllers: [UIViewController] = self. navigationController!. viewControllers.
  2. for aViewController in viewControllers {
  3. if aViewController is YourViewController {
  4. self. navigationController!. popToViewController(aViewController, animated: true)

How do I revert to a previous view controller in Swift?

there’s two ways to return/back to the previous ViewController :

  1. First case : if you used : self. navigationController?.
  2. Second case : if you used : self. present(yourViewController, animated: true, completion: nil) in this case you need to use self.

Why does Viewwillappear not get called when an app comes back from the background?

In other words, if someone looks at another application or takes a phone call, then switches back to your app which was earlier on backgrounded, your UIViewController which was already visible when you left your app ‘doesn’t care’ so to speak — as far as it is concerned, it’s never disappeared and it’s still visible …

How do I switch between view controllers?

How to switch between View Controllers Programmatically IOS Development

  1. Create a new Xcode project.
  2. Embed Navigation Controller.
  3. Add new View Controllers to Main.
  4. Create New Swift Files.
  5. Storyboard ID under Identity Inspector.
  6. Buttons, Labels, and Backgrounds.
  7. IBActions of Buttons.
  8. Push View Controller.

How do I pop a view controller in Swift?

You can do it by selecting the View Controller in Storyboard editor and clicking Editor -> Embed In -> Navigation Controller. Also make sure that you have your Storyboard Entry Point (the arrow that indicates which view controller is presented first) either pointing to Navigation Controller or before it.

How can you reload a ViewController after dismissing a modally presented view controller in Swift?

You can access the presenting ViewController (presentingViewController) property and use it to reload the table view when the view will disappear. When you dismiss the SecondViewController, the tableview of the FirstViewController will reload.

How do I dismiss a view controller in Swift?

Show activity on this post.

  1. embed the View you want to dismiss in a NavigationController.
  2. add a BarButton with “Done” as Identifier.
  3. invoke the Assistant Editor with the Done button selected.
  4. create an IBAction for this button.
  5. add this line into the brackets: self.dismissViewControllerAnimated(true, completion: nil)

What is the difference between viewDidLoad and viewWillAppear?

viewDidLoad ONLY gets called when the view is constructed – so for example after a view controller initFromNibNamed call when the view is accessed. viewWillAppear is called anytime your view controller was not in view but comes into view – so when your view controller is pushed, viewWillAppear is called.

How many times is viewWillAppear called?

The methods ViewDidAppear and ViewWillAppear as they sound to you, called every time the view Appear on the screen.

How do I navigate to another screen in iOS Swift?

“how to navigate to another screen in swift” Code Answer

  1. let storyBoard : UIStoryboard = UIStoryboard(name: “Main”, bundle:nil)
  2. let nextViewController = storyBoard. instantiateViewController(withIdentifier: “nextView”) as! NextViewController.
  3. self. present(nextViewController, animated:true, completion:nil)

How do I switch between views in Xcode?

The easiest way to switch between screens in iOS is. Add a button on the current screen. Then press control and drag the button to the target screen. Then select push.

How do I pop a specific view controller?

“swift pop to specific view controller” Code Answer’s

  1. let viewControllers: [UIViewController] = self. navigationController!. viewControllers.
  2. for aViewController in viewControllers {
  3. if aViewController is YourViewController {
  4. self. navigationController!. popToViewController(aViewController, animated: true)

How do I change the view controller in programmatically in Swift?

Ctrl+Drag from the “View Controller” button, to somewhere in the second View Controller(HomeViewController). It can be anywhere in the main box of the second view controller. When you release, it will show you a box like the one below. in this you don’t need any code to switch, it will switch on click of a button.

How can you reload a Viewcontroller after dismissing a modally presented view controller in Swift?\?

After you have set your delegate, just add a call to the delegate method right before calling the dismissViewControllerAnimated in your Table2VC instance. This will give you precise control over when the table will get reloaded.

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 dismiss a presented view controller?

When it comes time to dismiss a presented view controller, the preferred approach is to let the presenting view controller dismiss it. In other words, whenever possible, the same view controller that presented the view controller should also take responsibility for dismissing it.

Does viewDidLoad get called before viewWillAppear?

viewWillAppear(_:) Always called after viewDidLoad (for obvious reasons, if you think about it), and just before the view appears on the screen to the user, viewWillAppear is called.

What is the purpose of viewDidLoad?

viewDidLoad is called when the ViewController has loaded its view hierarchy into memory. This is the point where you can perform your customized initialisation for your view controller. For instance, if your view controller has a UILabel and you want to set a custom text to it, this is the point where you do that.

What is difference between viewWillAppear and viewDidAppear?

As the name suggests the viewWillAppear is called before the view is about to appear and viewDidAppear is called when view did appear.