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?".
Related
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've separated my views into multiple storyboards to make managing the project as a team much easier. The only problem is that I want to have the navigation bar across all of my different view controllers. I embedded the first view controller in a navigation controller which added the navigation bar. In my second storyboard, I wanted to constrain a view to the navigation bar, however, since this view controller isn't embedded in a navigation controller, there isn't anything to constrain the view to. I put a navigation bar without a navigation controller to constrain to, however, when I perform the segue from the first storyboard, this results in two navigation bars. How do I make this so that I can constrain the view to the navigation bar without having two of them? Thanks in advance!
You can go from on view controller to another by three way:-
First using segue as you are already doing
second You can Present your view controller by
let storyboard = UIStoryboard(name: "MyStoryboardName", bundle: nil)
let controller = storyboard.instantiateViewController(withIdentifier: "someViewController")
self.present(controller, animated: true, completion: nil)
Third You can Navigate View controller by
let storyboard = UIStoryboard(name: "MyStoryboardName", bundle: nil)
let controller = storyboard.instantiateViewController(withIdentifier: "someViewController")
self.navigationController?.pushViewController(controller, animated: true)
I'm not sure your problem. I guess that you want to use ONE navigation bar to constrain many UIViewController in different Storyboard. Here is my answer.
Step 1: Set up Storyboard ID in each UIViewController
Step 2: push new UIViewController
func switchNextView() {
let storyboardName:String = "xxxxxx"
let storyboardId:String = "xxxxx"
let storyboard = UIStoryboard(name: storyboardName, bundle: nil)
let vc: UIViewController =
storyboard.instantiateViewController(withIdentifier: storyboardId) as!
UIViewController
self.navigationController?.pushViewController(vc, animated: true)
}
I got the problem is I cannot make go back previous ViewController of different storyboard from NavigationController in TabViewController.
I've already tried with
_ = navigationController?.popViewController(animated: true)
unfortunately, it does not work. And I know that it can be going back with segue but it's not good practice. Please let me know how to do it. Thanks. Following is my hierarchy.
I had the same issue. In this case I am on a different Storyboard and want to return to the Main Storyboard and present the first view controller. Since this controller is embedded in a Navigation Controller that is embedded in a Tab Bar controller, you must instantiate the Tab Bar Controller. Be sure to set the indentifier on the Tab Bar Controller as "TabBarController"... or whatever you like.
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let controller = storyboard.instantiateViewController(withIdentifier: "TabBarController") as! UITabBarController
self.present(controller, animated: true, completion: nil)
In my app I use side bar as in facebook. when the user slides out the side bar a uiimageview is displayed. when user taps on the image it takes hm to a different viewcontroller. the problem i am facing is that I have created sidebar programatically and the other view to which I want to navigate the user is created using storyboard. So my source view is created programatically and destination view is created using storyboard. So can someone explain me if there is any way of using "Segue" in this scenario. Since i can not create segue using storyboard I need to do it programatically but even after a lot of googling i could not find the answer.
Well, to get another instance of another storyboard programmatically you can use something like:
let newController = UIStoryboard(name: "MyStoryboard", bundle: nil).instantiateViewControllerWithIdentifier("MyIdentifier") as! MyViewController
and then you push to your navigation controller, or add as a child view controller or something...
If you don't wanna bother with identifiers you can just use the instantiateInitialViewController instead of instantiateViewControllerWithIdentifier
Might help
"userSB" is the viewcontroller storyboard identifier
#IBAction func tapSearchCriteria(_ sender: Any?) {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let aVC = storyboard.instantiateViewController(withIdentifier: "userSB") as? AViewController
aVC?.modalPresentationStyle = UIModalPresentationStyle.custom
aVC?.transitioningDelegate = self
aVC?.udelegate = self
self.present(aVC!, animated: true, completion: nil)
}
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.