How to switch to other view controller programmatically in Swift 4?
original source : https://stackoverflow.com/questions/48799481/how-to-switch-to-other-view-controller-programmatically-in-swift-4
There are couple of ways to switch to another ViewController.
- Navigation
- Present
If you have created the controllers in storyboard then you have to first get the instance of storyboard in case of multiple storyboards.
In case of multiple storyboard you need to mention the name of the storyboard.
let sampleStoryBoard : UIStoryboard = UIStoryboard(name: "UserBoard", bundle:nil)Then get the instance of the view controller you wish to switch.
* Make sure you set the correct Identifier in ViewController.
let homeView = sampleStoryBoard.instantiateViewController(withIdentifier: "HomeViewController") as! HomeViewControllerif you wish to present the view controller:
self.present(homeView, animated: true, completion: nil)if you wish to push the view controller:
self.navigationController?.pushViewController(homeView, animated: true)if you want to Switch to another Controller which you created as Xib
let homeView = HomeViewController(nibName: "HomeViewController", bundle: nil)If you want to push:
self.navigationController?.pushViewController(homeView, animated: true)Present the Controller:
present(homeView, animated: true, completion: nil)Other ways to Switch between Controllers.
Wiring up the Segues
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.
or you can CTLR + Drag from View controller to other controller to create segue and write below code on click of button action and switch to another view controller.
performSegue(withIdentifier: “mySegueID”, sender: nil)
make sure you set the correct identifier of segue.
Details of different segues
Show — When the View Controllers are in a UINavigationController, this pushes the next View Controller onto the navigation stack. This allows the user to click the back button to return to the previous screen through the back button on the top left of the Navigation Bar.
Present modally — This presents the next view controller in a modal fashion over the current View Controller. This one doesn’t need to be part of a UINavigationController or a UISplitViewController. It just shows the destination View Controller in front of the previous one. This is usually used when the user has to either Finish or Cancel .
Custom — Exactly what it sounds like. You can make your own segue style and transitions and use
참조
https://stackoverflow.com/a/39340844/3151712
You need to create an instance of the next view controller and then either present or push that view controller
To present modally
func goToNextViewController() {
let nextVC = NextViewController() {
//you can set properties of the nextVC here
self.presentViewController(nextVC, animated: true, completion: nil)or to push:
self.navigationController.pushViewController(nextVC, animated: true)all that stuff with segues apply to storyboards
Cheers!
