How to transition to a new view controller with code only using Swift

Question

I want to transition from ViewController to secondViewController  when the user presses a UIButton  using code only in Swift      Function to transition func transition Sender  UIButton              Current Code  default colour is black     let secondViewController UIViewController   UIViewController       self presentViewController secondViewController  animated  true  completion  nil

User · Answer

In Swift 2 0 you can use this method       let registrationView   LMRegistration       self presentViewController registrationView  animated  true  completion  nil

User · Answer

SWIFT  Usually for normal transition we use   let next SecondViewController   SecondViewController   self presentViewController next  animated  true  completion  nil    But sometimes when using navigation controller  you might face a black screen  In that case  you need to use like   let next ThirdViewController   storyboard  instantiateViewControllerWithIdentifier  ThirdViewController   as  ThirdViewController self navigationController  pushViewController next  animated  true    Moreover none of the above solution preserves navigationbar when you call from storyboard or single xib to another xib  If you use nav bar and want to preserve it just like normal push  you have to use   Let s say   MyViewController  is identifier for MyViewController  let viewController   MyViewController nibName   MyViewController   bundle  nil  self navigationController  pushViewController viewController  animated  true

User · Answer

Always use nibName file otherwise your preloaded content of Xib will not show    vc   ViewController    ViewController nibName   ViewController   bundle  nil    change this to your class name   self presentViewController vc  animated  true  completion  nil

User · Answer

This worked perfectly for me   func switchScreen         let mainStoryboard   UIStoryboard name   Main   bundle  Bundle main      if let viewController   mainStoryboard instantiateViewController withIdentifier   yourVcName   as  UIViewController           self present viewController  animated  true  completion  nil

User · Answer

Updated for Swift 3  some of these answers are a bit outdated   let mainStoryboard   UIStoryboard name   Main   bundle  Bundle main          let vc   UIViewController   mainStoryboard instantiateViewController withIdentifier   myStoryboardID   as UIViewController         self present vc  animated  true  completion  nil

User · Answer

Your code is just fine  The reason you re getting a black screen is because there s nothing on your second view controller   Try something like   secondViewController view backgroundColor   UIColor redColor      Now the view controller it shows should be red   To actually do something with secondViewController  create a subclass of UIViewController and instead of  let secondViewController UIViewController   UIViewController     create an instance of your second view controller     If using code let secondViewController   MyCustomViewController alloc      If using storyboard  assuming you have a view controller with storyboard ID  MyCustomViewController  let secondViewController   self storyboard instantiateViewControllerWithIdentifier  MyCustomViewController   as UIViewController

User · Answer

The problem is that your code is creating a blank UIViewController  not a SecondViewController  You need to create an instance of your subclass  not a UIViewController   func transition Sender  UIButton            let secondViewController SecondViewController   SecondViewController        self presentViewController secondViewController  animated  true  completion  nil        If you ve overridden init nibName nibName  String  bundle nibBundle  NSBundle   in your SecondViewController class  then you need to change the code to    let sec  SecondViewController   SecondViewController nibName  nil  bundle  nil

User · Answer

For anyone doing this on iOS8  this is what I had to do   I have a swift class file titled SettingsView swift and a  xib file named SettingsView xib  I run this in MasterViewController swift  or any view controller really to open a second view controller    IBAction func openSettings sender  AnyObject            var mySettings  SettingsView   SettingsView nibName   SettingsView   bundle  nil    lt --- Notice this  nibName           var modalStyle  UIModalTransitionStyle   UIModalTransitionStyle CoverVertical         mySettings modalTransitionStyle   modalStyle         self presentViewController mySettings  animated  true  completion  nil

User · Answer

For those using a second view controller with a storyboard in a  xib file  you will want to use the name of the  xib file in your constructor  without the xib suffix    let settings dialog SettingsViewController   SettingsViewController nibName   SettingsViewController   bundle  nil  self presentViewController settings dialog  animated  true  completion  nil

[ios] How to transition to a new view controller with code only using Swift

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