I am trying to connect a new empty View(homeScreen) from a ViewController (loginScreen) using Xcode 6 Beta 4 and Swift. A button triggers the segue to the homeScreen View. The problem is that when I add the segue, my blank/empty homeScreen View magically gets a Navigation Item Bar on top of the view.
You can see that without the segue my homeScreen View its empty:
After the segue it looks like this:
As you can see, Xcode inserts the Navigation Item Bar on top (grey rectangle). I would like to know how to get rid of it or how to create an empty View that remains empty even after assigning a segue to it.
Thank you so much for your help!
Cheers!
UPDATE: My goal is to create a navigation bar kind of like the one Facebook implements in its' iOS app. On top have the search bar and maybe some more icons. Does anybody know how to do that? I tried to hide the Navigation bar by selecting my view controller and in the Attributes inspector setting the "Top Bar" attribute to none, but it does not work. Any suggestions?
Thanks again.
Does loginScreen is inside a UINavigationController? If it is, the new showed view controller (homeScreen) is supposed to be in the navigation controller too, and thus it has a navigation bar by default.
You can hide it if you want, but then you have to find an alternative way to navigate in your navigation controller.
Otherwise you can present the homeScreen modally changing the type of segue to "Present Modally".
For more details on view controller presentation see this document plus some updates in iOS8 (WWDC session: View Controller Advancement in iOS8).
EDIT: To implement the FB-like navigation bar I would customize the UINavigationController bar:
read this AppCoda tutorial about customizing the bar
to add a search bar use the code like:
let searchBar = UISearchBar()
...
self.navigationItem.titleView = self.searchBar
This is because the segue is a "push" segue ("Show (e.g. push)") from a View controller that is already included in a Navigation controller. Therefore, it is put in the stack of views of this Navigation Controller, and therefore receives a navigation bar.
If you don't want a navigation bar, then use either a modal segue ("Present modally"), or a custom segue.
Same thing if you need a different navigation Bar (not linked to the first Navigation Controller). You can perfectly have a modal segue leading to a UIViewController, which is embedded in its OWN navigation controller (or having only a navigation bar). Have a look in the menu: "Edit / Embed / Navigation controller".
Related
I'm trying to add UINavigationItem to my UIViewController as mentioned this answer. However the Navigation bar is not showing in my view. I tried even adding an outlet and setting the title programmatically and also adding the NavigationItem in two different places. Still it doesn't show. This view controller is embedded in a TabBarController. WHat am I missing here?
Thanks is advance.
This view controller is embedded in a TabBarController
But is it embedded, first and foremost, in a UINavigationController? If not, there will be no navigation bar that automatically appears and that automatically uses your view controller's navigation item.
If you don't want to use a UINavigationController (because you have no navigation to do), then you can add a navigation bar manually. But in that case your view controller's navigation item will not be used automatically to populate the navigation bar; you must populate it manually.
Typically, people do use a UINavigationController, even if there is no navigation to do, just to get this automatic behavior - to show the navigation bar and to populate it automatically.
[NOTE: The fact that you have told Interface Builder to show a navigation bar for this view controller, as if it were in a navigation controller, is irrelevant; that won't cause you to get any navigation bar when the app runs.]
I'm making a custom navigation bar for my navigation controller based app, which has the default navigationBar hidden property set to true. Using the default navigation bar is out of the question because it was causing a lot of issues due to the degree in which I need to customize it (complex animations, changes in height, etc).
I'm currently adding my "navigation bar", which is just a UIView, to the view of the UIViewController. So of course, when I transition to a new view, the old navigation bar falls away and the next view controller doesn't have any navigation bar. What I'd like to do is make my navigation bar behave more like the default UINavigationController navigation bar, where it stays fixed to the top and the new and old elements cross-fade during the VC transition. How can I accomplish this effect without using a UINavigationBar?
Thanks so much!
You should use a custom container controller with your custom navigation bar at the top, and a view below to which you add a child view controller's view. That child view controller could be a navigation controller with its navigation bar hidden to handle the transitions. You would have to have the incoming controller (or outgoing I guess) send a message to the container controller to tell it to do the cross fade of its navigation bar.
Reference layout via storyboard:
http://i.imgur.com/M7AmdP2.png
Reference landing page:
http://i.imgur.com/Y3g45uy.png
I am trying to use the bottom bar as displayed in picture 2 to control my app. When I select my option on the first page (Such as the songs tab), but when I go to the next page my navigation bar at the bottom disappears. I am using segues to direct my applications view flow.
I have tried making various controllers subclassed to a UITabBarController & pushing as modal. Neither of those kept the navigation controller
You shouldn't have that navigation controller as the initial controller, the tab bar controller should be first. Then, in each of the three tabs, the root view controller should be a navigation controller, followed by the ones you show in your image.
I want to add a Back button to a Navigation Controller. This is how my storyboard looks like:
I have a ProgViewController for the main screen. The TableView is embedded into the Navigation Controller. I also have a ProgPlayersViewController for the TableView.
My question is how can I add a Back button to the Navigation Controller?
Thanks for your help.
ProgViewController needs to be in the navigation stack so that you can go back (ie. 'pop') to that view controller.
The actual button itself is created by the navigation controller assuming that there is a view controller to actually go back to.
The navigation controller, as you have it in your diagram, needs to be before the ProgViewController and not after it.
Note if you don't want the navigation bar to be visible in the ProgViewController you can set it to hidden.
I create a new XIB file, drag a UITabBarController in it, and then try to set the Top Bar to Navigation Bar.
No matter what I do, it goes back to Unspecified.
I think I should be able to set the Top Bar to Navigation Bar so I can lay out my views assuming I've got both a tab bar and a navigation bar, shouldn't I?
Is this intended behaviour???
I think this is an Apple way to remind you that UITabBarController is not supposed to be pushed in UINavigationController. Related question - Tab bar controller inside a navigation controller, or sharing a navigation root view.