I have two view controllers and a Navigation contoller in a storyboard. In the first view controller I have two buttons.
Both buttons segue to the second view which contains a map and opens the map with different info. They are both of the kind show.
The first button when clicked opens the map with the navigation bar at the top (it loads from the side).
The second button loads the map without the navigation bar (it loads from the bottom).
I want both buttons to load the map with the navigation bar.
I am using xcode 7.3 swift and storyboards
Also using prepare for segue
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if(segue.identifier == "lav"){
let DestViewController = segue.destinationViewController as! MapView
DestViewController.type = typeLav
}
if(segue.identifier == "cam"){
let DestViewController = segue.destinationViewController as! MapView
DestViewController.type = typeCam
}
}
Set the segue action
Present Modally
Show Up from bottom, and without navigation controller, so there is no navbar too.
Push
Push the view controller to current navigation stack, so the navigation bar is shown
btw, method prepareForSegue was used to setup data transfered between view controllers;
Related
I have a popover view which is simply a stack of UIButtons.
The popover is presented from a view controller (Records) which is itself inside a NavigationController.
I need the buttons in popover view to be able to push other views on top of the navigation stack.
Here's how I prepare the segue for the popover in the Records view controller:
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "popoverSegue" {
let dest = segue.destination as! PopoverViewController
dest.navController = navigationController
dest.modalPresentationStyle = .popover
dest.popoverPresentationController?.barButtonItem = addButton
dest.popoverPresentationController?.delegate = self
}
}
Then inside the popoverViewController I got a bunch of IBAction functions where I need to push other views on top of the navController that was set above.
let editor = EditorViewController(nibName: "EditorViewController", bundle: nil)
navController?.pushViewController(editor, animated: true)
This kina works and the editor view shows up with a nav bar and all, but as soon as I tap on the view or try to scroll, it just gets dismissed.
How can I prevent that dismiss thing? I did try setting isModalInPresentation. It didn't work for me.
Answering, as per OP's comments...
The proper approach is to have your "popover" controller tell the presenting controller to push a new VC onto the navigation stack.
This can be done in a few different ways, but most commonly by using either the protocol/delegate pattern or with closures.
In my iOS app, in a viewController I try to open a specific view in Tab Bar Controller.
I use a performSegue.
First I try to navigate straight to the specific view , but in this case the tab bar disappear
So I try to navigate to the tabViewController, and this lead me to the defult view (the first)
any idea how to navigate to a specific view in TabBarController ?
the performSegue I use:
self.performSegue(withIdentifier: "goToMain", sender: self)
//"goToMain" is my indentipier to the storyboard Segue
I use swift 4
with this code, you don't need segues, you can use when you push some button
let VC1 = self.storyboard!.instantiateViewController(withIdentifier: "tabBarController") as! tabBarLoginViewController
VC1.selectedIndex = 2 //this line says that the view that appears will be third of you tab bar controller
self.navigationController!.pushViewController(VC1, animated: true)
if you want to use segue use this, the segue needs to point of tab bar controller, not a view of tab bar controller
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if (segue.identifier == "goToMain") {
let vc = segue.destination as! TabBarController
vc.selectedIndex = 2
}
}
This question already has answers here:
Tab Bar controller disappearing when moving to another view (iOS SDK, Using storyboards)
(2 answers)
Closed 2 years ago.
I have a tab bar controller, then a navigation controller, then a first view controller. This view controller has a tab bar as expected. However, when I segue from this view I lose the tab bar. I want it to retain its position on the other VC's stemming from this first view. Here is my IB:
I want the tab bar to also appear on the left VC after it is loaded via segue from the right VC,
How is this achieved as currently it disappears regardless of me setting the tab section at the bottom of the VC as shown above.
From storyboard you establish a segue from starting view controller to Tab Bar Root View Controller. Then you use segue to pass the data to the specific item view controller
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let vc = segue.destination as! TabBarRootViewController
let vc1 = vc.viewControllers?[0] as! specificItemViewController
vc1.destinationVariable = self.startingControllerVariable
I just ported my project over to Swift 2, and everything is working great - except that even the most simple segues have no back button. Here is the prepare for segue function that I am using:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
if segue.identifier == "showExercise" {
if let nav = segue.destinationViewController as? UINavigationController {
if let exercisesController = nav.topViewController as? ExercisesController {
let cell = sender as! WorkoutCell
if let workout = cell.name!.text {
exercisesController.exercises = Workouts[workout]!
exercisesController.navigationItem.title = workout
}
}
}
}
}
Before, the back button to the parent segue used to automatically populate. Now, all I get is the title in the child navigation vc
Are you using show or show detail segue? It seems like you are using a modal segue. Destination view controller for show or show segue is usually the second view controller itself, and not embedded in another UINavigationController.
If your destination view controller for the show segue is really a UINavigationController, the new navigation controller's navigation bar settings may override the old one (the navigation controller of the source view controller). Try not embedding your destination view controller in another UINavigationController.
I have a set of view controllers linked to a tab controller.
When a image is selected on one of these tabbed views a segue is executed and a detail viewocntroller not linked to the tab controlled is opened.
Pronblem is when I navigate back to the tabbed view controller via segue from the detail view, the tabs are no longer visible.
Before segue executed on tabbed vc:
Same vc with no tab after segue from vc not linked to tab controller
Question is how to ensure tab will be visible on vc when called via the non tabbed vc?
Just to add the tabbed view connected to tab controller is a collection view, the detail view segue is excited when user sects an image:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
println(segue.identifier)
println(sender)
println("SEGUE SELECTED: \(segue.identifier)");
if(segue.identifier == "segueToDetailScrollView"){
// pass the cell
let cell = sender as CollectionViewCell;
let indexPath = collectionView?.indexPathForCell(cell);
let vc = segue.destinationViewController as ScrollView;
var image = arrayOfIUmages[indexPath!.row];
var imageTitle = titles[indexPath!.row];
println("Image to segue name : \(image) and the title : \(imageTitle)");
println("The vew controller \(vc)");
vc.currImage = UIImage(named: arrayOfIUmages[indexPath!.row]);
vc.textHeading = self.titles[indexPath!.row];
}
}
You will need to create a segue to the tabcontroller and let tab controllers set the inner view. Onload you can check for a shared default or something similar to find which tab should be shown.
Need to use unwind method in target view controller to allow navigation back to the same instance navigated from, good example here http://www.raywenderlich.com/81880/storyboards-tutorial-swift-part-2