I have being trying different things and looking around for a while without finding an answer to my problem. Maybe I'm doing something fundamentally wrong.
The sample application consists of:
A first view controller that displays a second view controller using a segue. This works fine.
A second view controller, in which I have simulated the display of a third view programmatically, which contains a bar item button (named "Done") that I would like to display.
The bar item button in the third view controller is not displayed at runtime but is displayed in IntefaceBuidler at design time.
This third view controller needs to be displayed modal.
What I'm doing wrong to display this bar item button?
A sample project illustrating the problem is available here.
Below a screen capture of the bar item button at design time:
Below a screen capture of the bar item button not showing at design time:
PS:
Please disregard the "Unknown class ThirdViewControlller in Interface Builder file.", since the ThirdViewController is displayed fine at runtime. Also, the "Done" button in the middle of the view works fine.
In SecondViewController you need to push the third onto the navigation controller stack like so:
self.navigationController?.pushViewController(thirdViewController, animated: true)
You are currently presenting it as a modal. Also, you've unnecessarily added a second UINavigationController to your storyboard (for the third view controller)
If you want to present a modal, then you'd need to embed the controller in a navigation controller:
let navController = UINavigationController(rootViewController: thirdViewController)
self.present(navController, animated: false)
If you prefer to keep this within the storyboard, then you need to provide a identifier for the UINavigationController and insatiate that in your function.
The above button is a navigation bar item that will only be displayed on the navigation bar . For achieving your desired result , you first have to embed the navigation controller at least in your second viewcontroller and then you should do a push segue rather than modal . Navigation controller can be added by
whith your second viewcontroller selected go to Editor\Embed In\Navigation Controller
for pushing the viewcontroller programatically onto user navigation controller's stack use
self.navigationController?.pushViewController(nextViewController, animated: true)
Related
I am interested in implementing a back button to segue to a previous view controller. I have tried to embed a navigation bar onto the the top of the table view controller but the issue is when I do segue back to the first view controller, by default, Xcode keeps the navigation bar with a back button to go back to the table view controller. Is there a simpler way to implement a segue to go back to the first VC without the navigation bar remaining?
I'm not too sure if this works, but embed your view controllers including the first one inside the navigation controller. That would make all your view controllers with navigation bar above.
On the main view controller (the one you do not want to have the navigation bar), add the line of code inside your viewDidLoad method.
Swift 3:
self.navigationController?.navigationBar.isHidden = true
I found an easy way. On your TableViewController, drag a UIview to the top of the view controller and itll let you insert the view. From there just add your back button
Just assign your "Back" UIBarButtonItem to this method and it should work.
#IBAction func backButtonPressed(sender: AnyObject) {
self.dismissViewControllerAnimated(true, completion: nil)
}
Sounds like a few problems
1) How are you navigating from the first view controller? Is it with Show (Push) if not, you are replacing the first view controller in your stack.
2) Based on your problem, make sure your first view controller is not embedded in a navigation controller
3) As Dylan mentioned, you need to hook your back button to remove the current view controller to return to the first one
4) Extension of (3), how are you segueing back to the first view controller? If you are explicitly navigating to first view controller with your back button handler, it's not actually going back but rather forward and keep the navigation bar.
Description: I have a Spilt view controller which has the masterController to display all the menu items and the secondary controller(DetailViewController1) is to display few details. Now I have DetailViewController2 which displays some other information.
Flow: SplitViewController which has the MasterViewController(table view for menu) -> DetailViewController1 -> DetailViewController2
Problem: If I present the DetailViewController2 using show segue then it is fine. If I use show detail segue then the navigation bar back button in the DetailViewController2 is not dismissing my DetailViewController2 to go back to the DetailViewController1.
Even if I use show segue it fails to dismiss. What I am doing wrong here?
You should use show only, Because Show detail segue replace the controller not push it
From Apple
Show Detail:
Present the content in the detail area. If the app is displaying a
master and detail view, the new content replaces the current detail.
If the app is only displaying the master or the detail, the content
replaces the top of the current view controller stack.
You can find more about it here
https://developer.apple.com/library/ios/recipes/xcode_help-IB_storyboard/Chapters/StoryboardSegue.html
Use two navigation controllers as the MasterViewController and DetailViewController of the UISplitViewController.
Embed your MasterViewController and DetailViewController1 in the nav controllers.
In DetailViewController1, when 'More Detail' button is clicked (or whatever triggers navigation to DetailViewController2):
{
let secondVC = self.storyboard?.instantiateViewController(withIdentifier: "DetailViewController2") as! DetailViewController2
self.navigationController?.pushViewController(DetailViewController2, animated: true)
}
This will present DetailViewController2 and the nav controller will handle navigating back to DetailViewController1 for free.
More info, including other benefits of using dual nav controller approach, here: http://nshipster.com/uisplitviewcontroller/
I'm having an issue with my main.storyboard file. I changed the settings of my app so that the start screen is the main.storyboard file, rather than LaunchScreen.xib. The initial ViewController is the NavigationController, and the second is my SplashScreeViewController. (I created my own splash screen in the storyboard so that I could change it with additional code.) I use a line of code in my splash screen to later transition to the second view controller. Here it is:
var controller:UIViewController = self.storyboard?.instantiateViewControllerWithIdentifier("Second") as! ViewController
controller.modalTransitionStyle = .CrossDissolve
self.presentViewController(controller, animated: true, completion: nil)
For some reason, when I transition to that second ViewController, the navigation bar that should be at the top (of the second ViewController) isn't there, opposite of what was shown in the main.storyboard file. I tried to add an invisible, disabled button to the splash screen as to add a connection between the two view controllers, and therefore adding a navigation bar to the second, but when the splash transitions on its own, no navigation bar appears on the second.
Is there a way I could have a navigation bar on my second view controller without dragging one in, nor programming it in? I would like to use the one Xcode provides when you create a new connection between controllers.
Thanks in advance to all who reply.
*(I apologize for the lack of pictures to help describe my problem. I don't have enough 'reputation' to do so.)
You need to embed your Second view controller on a Navigation Controller, and then instantiate that navigation controller instead.
This might solve the problem - It looks like you are presenting a modal view controller when you probably want to be pushing your view controller from your initial navigation controller with pushViewController
I have app, where is Segmented Control inside of my Navigation Bar. Under navigation bar I have 3 containers. In these containers I have Table View Controllers. If you tap on segmented control, one TVC appear and others disappear (container1.hidden = true and so on).
Problem is when I press "save" button which is also in navigation controller - button doesn't trigger "virtual push of back button".
I used following code which works in my other projects (its in button's action which is in VC that contains all container views) but not this time:
if let navController = self.navigationController {
navController.popViewControllerAnimated(true)
}
Image for better insight:
UPDATE: Thanks to # Alexey Bondarchuk I solved it. Comments may be confusing so I just recap problem and solution.
Originally, I had ViewController. To this controller I embed in Navigation Controller. To this Navigation Controller I connected segues. And that was mistake.
So I deleted this embed in navigation controller, made (show) segues directly to my View Controller (which is on screenshot). This automatically created navigation bar and last thing I did was that I put navigation item in it so now my code pop right navigationController. Hope that it's understandable.
I have couple ideas:
Your navigationController equal to 'nil' and .popViewControllerAnimated will never invoked. This may happen if you are using UITabBarController. In this case try to use self.tabBarController?.navigationController instead of self.navigationController.
Your controller presented 'Modally'. In this case you can try to invoke navController.dismissViewControllerAnimatedinstead of navController.popViewControllerAnimated
I would like to introduce in my app a View that will contains both navigation bar and a tab bar at the bottom. View contains a Table View with multiple entries and once user tap on a cell a push segue takes him to another view with details regarding the cell he has previously tapped. If he decides, user can go back to parent view by tapping on 'Back' button of the navigation bar on top. In addition to this, I would like my view to have a tab bar at the bottom with extra tools for the user. So, if he decides to check the 'Creator' of the app, he can by simply tap on 'Creator' TabBarItem at the bottom.
I would like to ask you what is the best way to achieve the above. I have already tried to use UITabBarController combined with UINavigationController. Didn't achieve what I was looking for because I would like the view with the table on it to be independent from the TabBarController and NOT a part of it (by part I mean by accessible through tabs).
Do you believe a UINavigationController view with UITabBarView would be a better choice?
UPDATE
What I mean by, "independent from the TabBarController and NOT a part of it":
Once the app loaded, I would like to see my main view (with table) contains Navigation Bar on top and Tab Bar at the bottom. However, I don't want to see the first tab of the Tab Bar selected because my main view will not be accessible through tabs of the Tab Bar but through Navigation Bar. If, for example, I am in Main view and tap on 1st tap, I would like to move to another view that will contains some other info.
Option 1:-
Create a tab bar Controller and on that TabbarController assign your navigation Views.
say nav1 with tab1 , nav2 with tab2...
Option 2:-
Create a Navigation View Controller and than add the tabbarcontroller on that navigationView Controller by using addSubView.
So when the user clicks on a row in a table u will go to a different View which doesn't have the TabbarController and when the user comes back he will again see the TabbarController.
This is what I will do:
First I will subclass UITabbarController and create for example ParentTabBarController. This controller will contain all the tabs necessary and what they will do if they are clicked so on.
Next for each viewcontroller I create, I will subclass from this ParentTabBarController so that the tabs are already in. You can add additional functionality or override it depending on your situation.
In your appdelegate pass in a navigation controller and every time push and dismiss the viewcontrollers you created in second step.
Hope this helps..