Question

i’ve got some segue created in storyboard. It has some identifier. I configure destinationViewController and assign some object as property of this destinationViewController in method prepareForSegue:sender:. This object is also property of my controller which called segue. In destinationViewController i’ve got BarButtonItem and when i press it, I call other segue and i go back to previous view. And when I’m in this viewController, property with this object which was passed to destinationViewController is equal to nil. Is possible to do something like this? :

1. When i’m in SourceViewController which has someProperty I set property of DestinationViewController.
2. When i’m back from DestinationViewController my property someProperty in SourceViewController isn’t null – it should be the same as before switching viewController.

It’s possible?

Now i’ve got to pass someObject from A to B and when I’m switching views I have to pass someObject from B to A – the same object.

Thank you for response and help.

Answer 1

Try not using another segue when you return to another view. You should be able to dismiss the current view whether its using a navigation controller or in a modal. As for you needing the same object, keep a reference to the object in controller A when you pass it to controller B. Both controllers will have a reference to the same object so making a change to it in controller B will show up in your object reference in controller A automatically.