I have implemented a right item button in the navigation bar. I use the storyboard, no code. But now the back button is not displayed. What's the good way to show it again without boilerplate code ?
Thank you!
You can not see the back button on the rootViewController of the NavigationController
NavigationController automatically add the back button once you push some other ViewController to it.
It will display if you have not hides it explicitly.
If you have drag and drop the BarButtonItem as shown in the attached image, Just run the code and back button will automatically get added if it was not your RootViewController.
If it is RootViewController as displayed in images, try to push some ViewController on it, you will get the back button added.
If you add the left bar button item from Interface Builder, you will not get the back button displayed. Then you have to do it manually
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I am new in iOS development and in Swift. I have a question. I added in one of the ViewController NavigationController. But I have some problems with back button cause it doesn't appear on other Views. I tried with self.pushViewController() and with self.present() but it doesn't work. If I mark in NavigationController Is Initial View Controller then everything is fine but I don't want it because then app starts with this screen(where I have NavigationController).
Please help me, what I should to add or to write?
This is an image of my storyboard
And this is what I have if I run and go to another ViewController, as you can see I don't have navigation bar and back button.
You got 2 options :
1) Add a navigation controller in the root ViewController, Hide throughout except the last one. Make sure you push the last VC so Back option will be there by default
self.navigationController.pushToViewController(BarCodeViewController)
2) Use a custom View on top of last viewController add a custom button to that view. But this time present it from previous ViewController
self.present(BarCodeViewController)
when back button clicked dismiss it by adding target to the button. self.dismiss()
I have an app that has a toolbar, but I don't want the bar at the top, in order to free more viewing space. Therefore I have decided not to use a navigation controller. I'd like to add a back button to the toolbar. How would I go about this?
Adding the button is easy enough, and setting the action to performSegueWithIdentifier is all fine, but what happens is that the previous view just gets loaded again, rather than show it as it was, like a true back button. So if I tap on the 10th row on a tableView and go to a new page, when I press the back button it loads the view from the top again, instead of showing it as where I scrolled down to last.
Even though you don't want a UINavigationBar, you do want a UINavigationController in this case, because it manages the 'back stack' exactly the way you want it. Just hide its navigation bar by setting its navigationBarHidden property to true (in the Storyboard or in the viewDidLoad function of the root view controller).
You can then use navigationController.popViewController(true) as normal, in response to the user clicking your custom back button.
I would like to know how I can add a back button to my UINavigationBar, I know that If I embed in a Navigation Controller in my main view, that all of this would happen automatically, but that is not what I am trying to do, in fact, the back button could go to any other view I connect the segue to, doesn't even have to be the back.
The back button needs to be the system navigation "back" button, I don't want to have to set image files for my buttons.
I tried dragging in a bar button item in storyboard but nothing shows up, doesn't seem to be doing the trick. The navigation bar was dragged to the view in storyboard (not created programmatically) and it shows up just fine.
I looked at the following similarly asked questions:
-> How do i add a 'back' button to a UINavigationBar manually?
-> How to add a button to UINavigationBar?
-> How to programmatically add a UINavigationBar and a back button on it
but they all point to just embedding the view in a navigation controller, which again, is not what I am trying to do.
If someone can please help me out, provide some sample code I would greatly appreciate it.
Try drag-drop a UIButton object. I have always added manual back button (hardly took the in-built one)
I'm making an app with multiple views, using a Navigation Controller. I can easily change views by ctrl-dragging from a button to another view, but it doesn't work by doing the same thing, but with a button in the Navigation Bar.
At first, I had a warning about the style of the button, so I changed it from Plain to Bordered. I have no warning now, but when I click on the button, nothing happens.
Thanks for your help!
Try it again but using a UIBarButton, then link the push action to it and it should work.
Right-click the button and drag the circle next to "Push" under Storyboard Segues over to the view you want the button to navigation to.
I have an existing ios5/xcode 4.2 app, and I want a button to open a view that will display a list of items, and have a back button and an add new button.
I thought I could achieve this by adding a button to the main view controller, then dragging in to the storyboard a new UITableViewController, then embed a UINavigationController (editor->Embed In->Navigation Controller).
Then i right clicked on the button, dragged it to the navigation controller, and thought, ok this should work.
However, there is no back button, and xcode will not let me drag one in, nor will it allow me to drag in the button bar item "[+]" for the link to add new.
When I run the app, the list shows, of course I have no way to go back to the view controller with the button on it.
What am i doing wrong? - thanks.
(my question is similar to this
but for xcode 4.2)
Embed the main view controller, not the new one, in a UINavigationController. This should add a simulated UINavigationBar to the main view (if not, set one up under Simulated Metrics). At this point you should be able to drop in a UIBarButtonItem to the main view's simulated bar.
Next, draw a connection from your button to the new UITableViewController to set up a push segue. At runtime, the back button will appear in the bar automatically.
Make sure when you try and drag the items into your view controller that the storyboard is zoomed in. XCode won't let you add items if you are zoomed out.