How to set a different entry point on first app launch?

Question

I have a Main.storyboard containing the root view controller of my app. However, I would like to display an onboarding view (without a navigation controller) on first app launch in order for the user to fill some data that's needed only once. So I was thinking about creating an Onboarding.storyboard, but I don't know how to choose which storyboard to set, where to do it (AppDelegate?) and when data is filled, how to change the current storyboard.

Thanks for your help.

ohh why two entry point. Just create a view (say IntroView) & check for the launch of the app. If user open for the first time then show IntroView otherwise show nextview. — Gagan_iOS, Jun 05 '17 at 08:06
This has been asked many many times on Stack Overflow in Objective-C and Swift. You should be able to find an answer on one of the already existing questions :D — Fogmeister, Jun 05 '17 at 08:09
This should be -somehow- a useful Q/A when using Swift 3: https://stackoverflow.com/questions/41811070/show-a-view-on-first-launch-only-swift-3 — Ahmad F, Jun 05 '17 at 08:23
Also, for Objective C: https://stackoverflow.com/questions/12878162/how-can-i-show-a-view-on-the-first-launch-only — Ahmad F, Jun 05 '17 at 08:26

score 8 · Answer 1 · answered Jun 05 '17 at 08:07

Try this for Swift 3.x, make sure you're setting Initial View Controller in both the storyboards. In your AppDelegate.swift file, application:didFinishLaunchingWithOptions

var storyboardName:String?
if someCondition {
    storyboardName = "Onboarding"
}else{
    storyboardName = "Main"
}

let storyboard = UIStoryboard(name: storyboardName, bundle: nil)

let intialVC = storyboard.instantiateInitialViewController()

self.window?.rootViewController = intialVC

score 1 · Answer 2 · edited May 29 '18 at 09:39

You need to change this in AppDelegate's didFinishLaunchingWithOptions method.This method call's during app launch every time.

How:

Consider this example. Store the values in NSUserdefaults and retrieve it during app launch.

Example

Objective C:

BOOL isCompletedSetupWizard =[[NSUserDefaults standardUserDefaults] boolForKey:@"isCompletedSetupWizard"];

if (isCompletedSetupWizard) 
{ 
   //Your code goes here
   //....
   //....
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    viewController = [storyboard instantiateViewControllerWithIdentifier:@"yourFirstView"];
    self.window.rootViewController = viewController;
}
else  
{
  //Your code goes here for another view controller.
  //....
  //....
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"onBoarding" bundle:nil];
    viewController = [storyboard instantiateViewControllerWithIdentifier:@"yourSecondView"];
    self.window.rootViewController = viewController;
}

How to set a different entry point on first app launch?

2 Answers2