I have two views like this in Story Board:
[View1] -> [Navigation Controller] -> [View2]
To go from View1(has tableview) to View 2, i do this on click of a row on View1:
self.performSegueWithIdentifier("showmyview2", sender:self)
This works.
Now i have a button on View 2, which when clicked should take me back to previous view i.e View 1.
I tried this:
navigationController!.popViewControllerAnimated(true)
But this does not work. How do i go back to first view?
First Add a navigation controller to your First view1 through storyboard.(Editor->Embed Navigation controller), If navigation is not present.
OR
self.dismissViewControllerAnimated(true, completion: nil);
Call this function and try instead of navigation popviewcontroller
Use this code to present first view in your button action:
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc = storyboard.instantiateViewControllerWithIdentifier("FirstView") as! TableViewController
self.presentViewController(vc, animated: true, completion: nil)
And don't forget to give Id to your First view.
Select your firstView into storyBoard and then click on Identity Inspector and you can assign StoryBoard ID like show into below Image.
self.dismiss(animated: true, completion: nil);
this will work in swift 3
Related
I have two view controllers, first view controller and the second view controller, when the user segue from the first view controller to the second view controller, the first view controller still visible and sits behind the second view controller. The user can swipe the first view controller and see the entire first view controller and then they got stuck there. I noticed that this only happens after the launch of iOS 13.
performSegue(withIdentifier: "showSecond", sender: self)
Follow these two steps:
Click on the segue you created on the Storyboard
Go to Attributes Inspector
Set the Presentation to "Full Screen"
#Maysam is 100% right! But you can also do it programmatically through this:
// Go to next View Controller
#IBAction func nextTextVC(_ sender: UIButton) {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextInfo = storyboard.instantiateViewController(identifier: "socialOptionsIntroViewController")
self.navigationController?.pushViewController(nextInfo, animated: true)
}
There is a more detail thread could answer this question.
The follow solution from Pratik Sodha
let controller = UIViewController()
let navigationController = UINavigationController(rootViewController: controller)
navigationController.modalPresentationStyle = .overCurrentContext
self.navigationController?.present(navigationController, animated: true, completion: nil)
I want to segue to a new ViewController programatically but when I do my tabBar disappears.
if user == usernameStored && pass == passwordStored{
print("Good")
let vc = self.storyboard?.instantiateViewController(withIdentifier: "home")
self.present(vc!, animated: true, completion: nil)
}
From your code, this is not segue by programmatically. You actually present a viewController on top of whatever you have. Therefore the tabBarController is cover.
To use segue in code, it should be something like this. - homeSegueID is the identifier you give when you created the segue in storyboard.
performSegue(withIdentifier: "homeSegueID", sender: nil)
If you just want to do it programatically without segue, you could do this instead. (This assume your current ViewController is in a UINavigationController stack.
navigationController?.pushViewController(vc, animated: true)
Is the navigation controller wrapping your view controllers a tab bar controller, or did you just add the tab bar to your view controller? This is what you should be doing:
I'm using MZFormSheetPresentationController to show as "pop-up" a ViewController2 (embedded in a Navigation controller as suggested) over a ViewController1.
My ViewController1 has a searchbar, a UISegmentedControl and a tableview:
When user clicks on the searchbar bookmark button, pop-up is shown.
I'd like to close the pop-up when user clicks on the done button and it works great using self.dismissViewControllerAnimated(true, completion: nil) method but I'm looking for more. I'd like to present again ViewController1 so tableView will reload data.
I tried with:
self.dismissViewControllerAnimated(true, completion: nil)
print("Dismissed")
//goToTickets
let next = self.storyboard?.instantiateViewControllerWithIdentifier("myTabBar") as! UITabBarController
self.presentViewController(next, animated: true, completion: nil)
but I get this error:
Warning: Attempt to present on whose view is not in the window hierarchy!
Pop-up disappears but I can't present ViewController.
How can I do?
Thanks in advance.
Edit
This is my ViewController2 with identifier "navigationFilter"
and my tabBar:
When you are in the middle of dismissing you are trying to present next ViewController, you have to wait for completion handler and then present next view controller like this:
self.dismissViewControllerAnimated(true, completion: {
let next = self.storyboard?.instantiateViewControllerWithIdentifier("myTabBar") as! UITabBarController
self.presentViewController(next, animated: true, completion: nil)
})
I want to navigate between view controllers as it is shown. I do not want to use segues.
When I try to navigate form FirstViewController to SecondViewController by clicking a button:
let next = self.storyboard?.instantiateViewControllerWithIdentifier("secondViewController") as! SecondViewController
self.presentViewController(next, animated: true, completion: nil)
I get:
Warning: Attempt to present SecondViewController on FirstViewController whose view is not in the window hierarchy!
Any ideas how to insert Navigation Controllers in-between?
Edit: It is TabBarController not TabViewController on the figure.
I navigate from First Scene's controller named "A-Controller" to First View Controller with :
#IBAction func navigateToFirstViewController(sender: AnyObject) {
let next = self.storyboard?.instantiateViewControllerWithIdentifier("firstViewController") as! FirstViewController
self.presentViewController(next, animated: true, completion: nil)
}
It is not shown on the figure.
If you try to present modal view over TabBarController, then :
let next = self.storyboard?.instantiateViewControllerWithIdentifier("secondViewController") as! UIViewController
self.tabBarController.presentViewController(next, animated: true, completion: nil)
Warning: Attempt to present SecondViewController on FirstViewController whose view is not in the window hierarchy!
Turns out this error meant I have to do the navigation from First View to Second View after my First View appears and is ready.
Putting the navigation lines inside viewDidAppear() function solved the issue.
I have an existing UITableViewController that I've embedded in a NavigationController. However, the Navigation Bar is not showing when I present the view.
Presenting the TableViewController (its Storyboard id is: SelectServicesController) :
if let selectServicesController = self.storyboard?.instantiateViewControllerWithIdentifier("SelectServicesController") as? UITableViewController {
self.navigationController?.presentViewController(selectServicesController, animated: true, completion: nil)
}
This is what it looks like when I build (nav bar does not show):
So I just did this and at fist could not get it to show up at all. Then Figured it out, You just need to select the navigation controller and set it to be the ✅is initial View Controller
This is what your storyboard should look like
Then to make everything show up I added this to my viewDidLoad of the view the Navigation controller is presenting. This step is more optional.
self.navigationController?.navigationBar.barTintColor = UIColor.redColor()
self.navigationController?.navigationBar.tintColor = UIColor.blackColor()
self.navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName:UIColor.blackColor()]
navigationController?.navigationBar.hidden = false
And this is what it looks like
mmmm Red on black 🤓 Hope that helps you.
You're presenting a UITableViewController, which doesn't have a navigation controller as a parent (even though your Storyboard has it first, you're not actually using it).
You can fix this by doing something like this:
if let selectServicesController = self.storyboard?.instantiateViewControllerWithIdentifier("SelectServicesController") as? UITableViewController {
let navigationController = UINavigationController(rootViewController: selectServicesController)
self.navigationController?.presentViewController(navigationController, animated: true, completion: nil)
}
Or by setting the navigation controller as the initial view controller of the storyboard and then calling it like this:
if let selectServicesController = self.storyboard?.instantiateInitialViewController() {
self.navigationController?.presentViewController(selectServicesController, animated: true, completion: nil)
}
I encountered the same problem. I solved it by Changing the segue to the navigation controller that embeds the View Controller I want to display.
Hopefully it would work for you.
Let me know if it is a bad practice.
let storyboard = UIStoryboard(name: "Expense", bundle: Bundle(for: PTCAddExpenseViewController.self))
let controller = storyboard.instantiateViewController(withIdentifier:"AddExpense") as! PTCAddExpenseViewController
let navigationController = UINavigationController(rootViewController: controller)
self.present(navigationController, animated: true, completion: nil)
Adding this works for me:
self.navigationController?.isNavigationBarHidden = false
You're presenting the table view controller directly, not its navigation controller. If you mark the nav controller as the initial view controller (tick the "Is initial view controller" box in the attributes inspector), then you can instantiate and show it by:
if let selectServicesNavController = self.storyboard?.instantiateInitialViewController() as? UINavigationController {
// if you're pushing it onto an existing nav controller
self.navigationController?.presentViewController(selectServicesNavController, animated: true, completion: nil)
// if not (and this is probably the case), set the nav controller as your window's rootViewController
UIApplication.sharedApplication().keyWindow.rootViewController = selectServicesNavController
}
My guess is Xcode is ignoring the fact that your table view controller is embedded in navigation controller when presenting your table view controller with the following code:
if let selectServicesController = self.storyboard?.instantiateViewControllerWithIdentifier("SelectServicesController") as? UITableViewController {
self.navigationController?.presentViewController(selectServicesController, animated: true, completion: nil)
}
Instead, I would suggest you modify the Top Bar setting under Simulated Metrics to suit your needs or instantiate your navigation controller instead (the latter is preferred and recommended)
In your code, change this line
self.navigationController?.presentViewController(selectServicesController, animated: true, completion: nil)
to this
self.presentViewController(selectServicesController, animated: true, completion: nil)
I read in one of your comments you want to present the table view controller modally, with the navigation bar showing. We can do this using the Storyboard. From the view controller that should display this table view controller modally, Ctrl+Drag from the view controller to the Navigation Controller of the Table View Controller. Then, select Present Modally. Set an Identifier for the segue. Then, in your code for the view controller that is presenting the table view controller modally, call:
self.performSegueWithIdentifier("YourSegueIdentifier", sender: nil)
Another way to do this without having to use any code is if the modal presentation is being triggered by something like a button. Then, you can Ctrl+Drag from that button to the Navigation Controller and select Present Modally.
Or it might be this!!
I had the same problem: the navigation bar was showing on the root view in Storyboard, but when running the Simulator - there was no navigation bar at the top of the views. This solved it:
Navigation Controller > Navigation Bar > UNCHECK Translucent (it is checked by default). This did two things:
My Navigation Bar shows on all subsequent views.
The topmost subview is now at Y=0, and not Y=64.