Swift presentViewController

Question

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 swift file  We will call it view2 swift  and have it be part of a function that a button calls I have tried the following   let storyboard  UIStoryboard   UIStoryboard name   myTabBarName   bundle  nil  let vc  UIViewController   storyboard instantiateViewControllerWithIdentifier  myVCID   as UIViewController self presentViewController vc  animated  true  completion  nil    The above works with storyboards  but I want another view2 swift to be called  Can this be done

User · Answer

For me  I had two views in two separate nav controllers  I had to use a combination of the above   var vc   self storyboard  instantiateViewControllerWithIdentifier  WelcomeViewController   as  WelcomeViewController     var navigationController   UINavigationController rootViewController  vc      self presentViewController navigationController  animated  true  completion  nil    Swift 3 x          let secondVC   self storyboard  instantiateViewController withIdentifier   VC-ID  as  yourViewController         let navigationVC   UINavigationController rootViewController  secondVC          self present navigationVC  animated  true  completion  nil

User · Answer

For those getting blank black screens this code worked for me       let vc   self storyboard  instantiateViewController withIdentifier  myVCID  as  myVCName     self present vc  animated  true  completion  nil    To set the  Identifier  to your VC just go to identity inspector for the VC in the storyboard  Set the  Storyboard ID  to what ever you want to identifier to be  Look at the image below for reference

User · Answer

I had a similar issue but in my case  the solution was to dispatch the action as an async task in the main queue DispatchQueue main async       let vc   self storyboard  instantiateViewController withIdentifier  myVCID  as  myVCName     self present vc  animated  true  completion  nil

User · Answer

Using Swift 2 1    let vc   self storyboard  instantiateViewControllerWithIdentifier  settingsVC   as  SettingsViewController  self presentViewController vc  animated  true  completion  nil

User · Answer

Swift 3 and Swift 4  let vc   self storyboard  instantiateViewController withIdentifier   idMyViewControllerName   as  MyViewControllerName self present vc  animated  true  completion  nil

User · Answer

For reference  because this question is one of the first Google result   Breaking change in Swift 3   The method presentViewController is replaced by the method present   You can use it like the old one   self present viewControllerToPresent  animated  true  completion  nil    Example to open the camera   let imagePicker   UIImagePickerController   imagePicker delegate   self imagePicker sourceType   UIImagePickerControllerSourceType camera imagePicker allowsEditing   false self present imagePicker  animated  true  completion  nil

User · Answer

You don t need to instantiate the ViewController in Storyboard just to get present   ViewController to work  That s a hackish solution    If you see a black blank screen when presenting a VC  it might be because you re calling present   from viewDidLoad   in the First RootViewController  but the first View isn t ready yet   Call present   from viewDidAppear to fix this  i e    override func viewDidAppear   animated  Bool        super viewDidAppear animated       let yourVC   YourViewController       self present yourVC  animated  true  completion  nil      Once any  View  has appeared in your App  you can start calling present   from viewDidLoad        Using UINavigationController  as suggested in an answer  is another option  but it might be an overkill to solve this issue  You might end up complicating the user flow  Use the UINavigationController based solution only if you want to have a NavigatonBar or want to return to the previous view controller

User · Answer

You can use below code     var vc   self storyboard  instantiateViewControllerWithIdentifier  YourViewController   as  YourViewController              vc mode Player   1             self presentViewController vc  animated  true  completion  nil

User · Answer

You can use code   if let vc   self storyboard  instantiateViewController withIdentifier   secondViewController   as  secondViewController      let appDelegate   UIApplication shared delegate as  AppDelegate    appDelegate window  rootViewController   vc

User · Answer

Just use this   Make sure using nibName otherwise preloaded views of xib will not show    var vc   ViewController    ViewController nibName   ViewController   bundle  nil    change this to your class name   self presentViewController vc  animated  true  completion  nil

User · Answer

Another possibility is that you do not have the XIB included in your Build target  which is what happened to me    This could happen if you have a different target for Dev  Test  amp  Release Builds  which you should have anyway

User · Answer

Try this   let vc   ViewController     change this to your class name self presentViewController vc  animated  true  completion  nil    With Swift3   self present vc  animated  true  completion  nil

User · Answer

Solved the black screen by adding a navigation controller and setting the second view controller as rootVC   let vc   ViewController          var navigationController   UINavigationController rootViewController  vc  self presentViewController navigationController  animated  true  completion  nil

[swift] Swift presentViewController

Swift 3.x

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