Passing variables between Storyboards without Segues - Swift

问题

I'm passing data between two different UIViewControllers located within two different .storyboard files within Xcode. (It's quite a large project so I had to break it up into different storyboards.)

I have already established an "exercisePassed" variable (String) within the view I would like to Pass my data to, and I already know how to move between two views located within different storyboards. Like so.

var storyboard = UIStoryboard(name: "IDEInterface", bundle: nil)
var controller = storyboard.instantiateViewControllerWithIdentifier("IDENavController") as! UIViewController

//**************************************
var ex = //Stuck Here
ex.exercisedPassed = "Ex1"
//**************************************

self.presentViewController(controller, animated: true, completion: nil)

How can I pass the data without using a Segue/PrepareForSegue?

回答1:

I'm assuming that the viewController that you want to pass the data to is a custom viewController. In that case, use this amended code here:

var storyboard = UIStoryboard(name: "IDEInterface", bundle: nil)
var controller = storyboard.instantiateViewControllerWithIdentifier("IDENavController") as! MyCustomViewController

controller.exercisedPassed = "Ex1"

self.presentViewController(controller, animated: true, completion: nil)

回答2:

your question is not very clear, as far as i have understood

//1
//create a variable in "IDENavController"
//e.g 
var someVariable = @""

//2
var controller = storyboard.instantiateViewControllerWithIdentifier("IDENavController") as!       UIViewController
controller.someVariable = [assign your variable]

//3
self.presentViewController(controller, animated: true, completion: nil)

回答3:

Try this. This worked for me.

var storyboard = UIStoryboard(name: "IDEInterface", bundle: nil)
var controller = storyboard.instantiateViewControllerWithIdentifier("IDENavController") as! YourDestinationViewControllername
// Add your destination view controller name and Identifier

// For example consider that there is an variable xyz in your destination View Controller and you are passing "ABC" values from current viewController.

controller.xyz = "ABC"

self.presentViewController(controller, animated: true, completion: nil)

Hope this will be helpful.

回答4:

For those who are looking for the Swift 3/4 answer:

let storyboard = UIStoryboard(name: "IDEInterface", bundle: nil)
let controller = storyboard.instantiateViewController(withIdentifier: "IDENavController") as! CustomViewController

controller.yourVariable = "abc"

self.present(controller, animated: true, completion: nil)

来源：https://stackoverflow.com/questions/32051629/passing-variables-between-storyboards-without-segues-swift