I have 2 view controller ,and I disabled the initial view controller of first view controller ,and enabled the second view controller,but when start the project,the initial view controller is still the first view controller ,what should I do? Thanks!
Tap the second view controller, and select "Is initial View Controller" in Attributes inspector.
Alternatively you can do this with code too.
In your AppDelegate class's didFinishLaunchingWithOptions method you can write
let storyBoard = UIStoryboard(name: "Main", bundle: nil)
let secondVC = storyBoard.instantiateViewControllerWithIdentifier("SecondViewController") as! SecondViewController
self.window?.rootViewController = secondVC
Edit Swift 3.0
let storyBoard = UIStoryboard(name: "Main", bundle: nil)
let secondVC = storyBoard.instantiateViewController(withIdentifier: "SecondViewController") as! SecondViewController
self.window?.rootViewController = secondVC
Assuming that your storyboard name is Main.Storyboard and your SecondViewController Storyboard ID and Restoration ID is also set in Identity Inspector and use Storyboard ID is checked.
If you are starter like me ( both iOS and OSX mechine ) and you wanted to change the entry point within same storyboard, then,
-> long press on the entry point arrow.
-> drag it to the view controller you wish to make the starting point, the arrow will now move to your new screen.
Related
Sorry, if it is an essential question.
The scheme is the following:
enter image description here
I want the following:
User taps last Tab
User goes to some ViewController (different from ViewController, actually connected with last Tab)
How to do this (without using segue)?
Thanks a lot in advance!
You can go with instantiateViewController with push when load your tab and push one viewController to another like below:
let next = self.storyboard?.instantiateViewController(withIdentifier: "nextVC")as! nextVC
self.navigationController?.pushViewController(next, animated: true)
You can assign ViewController in you UITabBarController
let storyboard = UIStoryboard(name: "Main", bundle: nil)
// create view controllers from storyboard
// Make sure you set Storyboard ID for both the viewcontrollers in
// Interface Builder -> Identitiy Inspector -> Storyboard ID
let clockViewController = storyboard.instantiateViewControllerWithIdentifier("ClockViewController")
let stopWatchViewController = storyboard.instantiateViewControllerWithIdentifier("StopWatchViewController")
// Set up the Tab Bar Controller to have two tabs
let tabBarController = UITabBarController()
tabBarController.viewControllers = [clockViewController, stopWatchViewController]
// Make the Tab Bar Controller the root view controller
window?.rootViewController = tabBarController
the thing is im new to ios development this is my second application while working on the first one i mainly used a theme and then worked over it but this one im working from scratch.
My main problem is going from one screen to another
When i use this code it works
let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let nextViewController = storyBoard.instantiateViewController(withIdentifier: "servicesScreen") as! ServiceViewController
nextViewController.modalPresentationStyle = .fullScreen
self.present(nextViewController, animated:true, completion:nil)
But i need to use this one so i can go back too but this wont do anything
let storyBoard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let newViewController = storyBoard.instantiateViewController(withIdentifier: "servicesScreen") as! ServiceViewController
self.navigationController?.pushViewController(newViewController, animated: true)
My question is, am i doing anything wrong here or do i need to add something in scenedeligate?
try
select Main.storyboard
select initial view Controller
select editor -> Embed in -> navigation controller.
For this, you need to add navigation controller to initial storyboards.
If you are using navigationController you need to add a navigation controller first on storyboard or programmatically.
Programmatically add navigation controller check this link:-
Creating a navigationController programmatically (Swift)
or
To add navigation controller on storyboard you should follow this link:-
https://developer.apple.com/library/archive/referencelibrary/GettingStarted/DevelopiOSAppsSwift/ImplementNavigation.html
If you have added navigation controller to your app then make sure your intialViewController is set to navigation controller or your navigation controller is added to the stack when you run your application.
Also check for "Is the identifier correct? Did you reference the correct storyboard?".
I am working with UISplitViewController. I have UISplitViewController which contain UITabBarController. So I want to display tab bar in all the screen through out the application (Even in detail screen of UISplitViewController for iPhone). Please see the approach:
use segue to move from one controller to another controller or move via navigation so in the next controller your tabbar will be show
just like if u want to move from A to B Controller set stroyboard id ie "SecondVc"
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc = storyboard.instantiateViewController(withIdentifier: "SecondVc")
self.navigationController?.pushViewController(vc, animated: true)
or just make connection using storyboard
I have a TabBarController with two tabs Cases & Settings
I would like to take the user to CaseSummaryTVC which is nested like this
TabBarController > Cases (NavigationController, Storyboard Id = 'tvcNav' ) > CasesTVC (TableViewController) > CaseSummaryTVC (TableViewController, Storyboard Id = 'CaseSummaryTVC').
I am using the below code in AppDelegate, which takes me to the 'CaseSummaryTVC' but doesn't show the TabBar on the bottom.
let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let navController = mainStoryboard.instantiateViewController(withIdentifier: "tvcNav") as! UINavigationController
let caseSummaryTVC = mainStoryboard.instantiateViewController(withIdentifier: "CaseSummaryTVC") as! CaseSummaryTVC
navController.pushViewController(caseSummaryTVC, animated: true)
self.window?.rootViewController = navController
self.window?.makeKeyAndVisible()
It looks like you're setting your window's rootViewController to be 'navController', which doesn't seem to be wrapped in a UITabBarController.
I'm not sure what your storyboard looks like, but it sounds like you have the view hierarchy setup correctly there.
You could do one of the following:
1) Remove the programmatic view controller instantiation and have the storyboard take care of setting the rootViewController to the UITabBarController.
2) Instantiate the UITabBarController programmatically like you have done here with the other view controllers, and make sure it's set up to have the navController as one of it's tabs.
I'm working with a single view app but also I'm using Tab View controller at one case , but the Tab view Controller must be put as initial view controller to work so how I can use Tab view controller without make it as initial view Controller?
#SamahAhmed
let storyboard = UIStoryboard.init(name: "Main", bundle: nil)
let diallerTBC = storyboard.instantiateViewControllerWithIdentifier("tabBarStoryboardId") as! MyTabbarController
//create a variable for e.g : data at MyTabbarController and set like
diallerTBC.data = "testing"
When you are clicking on button to move tabbar controller
Provide a storyboard id to tabbar and use below code
Write this as a class method in appdelegate and call it on button click
let storyboard = UIStoryboard.init(name: "Main", bundle: nil)
let diallerTBC = storyboard.instantiateViewControllerWithIdentifier("tabBarStoryboardId") as! UITabBarController
self.window?.rootViewController = diallerTBC
self.window?.makeKeyAndVisible()
}
I hope this will work
Thanks