Swift Multiple Storyboard - How to access specific one - ios

Question

I had split a couple profiles into multiple storyboards to try to help with my freeze time because I heard to many storyboards can be the cause of why Xcode would just "freeze" for up to 10 mins sometimes causing a crash in my flow of work. So, I need to access each specific storyboard, yet don't know how. This current code accesses the "Main.Storyboard" file yet, I need to call other storyboard files. Here I am checking if a specific profile is signed in and pushing them to the profile. I had all the profiles in one storyboard but now I separated them. Just need to know how to push to other storyboards. Thanks
func checkIfBusinessLoggedIn() {
Auth.auth().addStateDidChangeListener({ (auth, user) in
if (user != nil) {
Database.database().reference().child("Businesses").child((user?.uid)!).observeSingleEvent(of: .value, with: { snapshot in
if snapshot.exists() {
print("Business is Signed In")
let vc = self.storyboard?.instantiateViewController(withIdentifier: "Business Profile")
self.present(vc!, animated: true, completion: nil)
}
})
}
})
}

Answer 1

let storyboard = UIStoryboard(name: "your_storyboard_name", bundle: nil)
vc = storyboard.instantiateViewController(withIdentifier: "your_view_controller_name")
//to push that controller on the stack
self.navigationController?.pushViewController(vc, animated: true)
If your storyboard file is "Business.storyboard", "your_storyboard_name" name should be "Business".

Answer 2

If you want to access other storyboards you need to give that name.
self.storyboard will always point to your default storyboard. Instead do this :
let VC = UIStoryboard(name: "VCStoryBoardName", bundle: nil).instantiateViewController(withIdentifier: "InstructionScreenController") as! VC

Answer 3

Use below code for multipe storybord and create ENUM for storyboard name that is easy to specify storyboard name.
//MARK:- Enum_StoryBoard
enum enumStoryBoard:String {
case main = "Main"
case home = "HomeSB"
}
let storyBoard = UIStoryboard.init(name: enumStoryBoard. home.rawValue, bundle: nil)
let objLocationSearch = storyBoard.instantiateViewController(withIdentifier: "LocationSearch") as? LocationSearch
self.navigationController?.pushViewController(objLocationSearch!, animated: true)

Answer 4

Using enum and generic method to return the required object.
enum AppStoryboard : String {
case First, Second
var instance : UIStoryboard {
return UIStoryboard(name: self.rawValue, bundle: Bundle.main)
}
func instantiateVC<T : UIViewController>(viewControllerClass : T.Type) throws -> T {
let storyboardID = (viewControllerClass as UIViewController.Type).storyboardID
guard let viewObj = instance.instantiateViewController(withIdentifier: storyboardID) as? T else {
throw ExcpectedError.intantiationErro(msg:"ViewController with identifier \(storyboardID)")
}
return viewObj
}
}
use this code to instantiate your viewController
let second = try! AppStoryboard.Second.viewController(viewControllerClass: SecondViewController.self) self.present(second, animated: true, completion: nil)