Task: I transfer a picture from one view of the controller to another. The picture is passed to the variable.

Question: Xcode asks to use the Navigator Controller before each ViewController. Therefore, we must somehow reformulate the line for getting the controller view (1 in the code)

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override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { //1 получаю вью контроллер, но ругается. **Could not cast value of type NavigationController to "Имя Вью контроллера"** let destinationVC: SaveAfterFilterScreen = segue.destinationViewController as! SaveAfterFilterScreen destinationVC.tempImage = imageFromCamera!.image! }
  • familiar picture :) - Max Mikheyenko
  • nav controller should be one, and not one for each VC, something you messed up - Max Mikheyenko

2 answers 2

In general, I was spinning around Segue, and received the message that "UINavigationController."

After I fixed the segue Push view on modal, it worked.

  • and if you need to put another controller on top, then you will put two modal ones one by one? - Max Mikheyenko
  1. Take destinationViewController as UINavigationController.
  2. Then from this navController take topViewController as!
  3. SaveAfterFilterScreen. This will be your destinationVC

PS: exactly, instead of rootViewController you need to take topViewController. Thank you for your comment

  • And there is no such rootViewController property for UINavigationController. There are topViewController - Anatoly
  • Yes, there is no rootViewController , instead you should use .viewControllers [0] - Denis
  • it is better to take firstObject from an array - when working with an index, it is advisable to check the size of the array. PS: fixed prop on topViewController - Valentine