I am trying to add a Back button onto my table view controller (far right VC in the picture). I embeded a Navigation Controller and added a Back Item on the navigation bar with a segue to my second VC. However when I run the code, after I press back on the TableVC, it goes to a blank screen with the Back button still at the top. I want to be able to have the second VC screen when the back button is clicked, but I think there is some funky thing the navigation bar does. I was wondering if there was a way around this.
Ok so I'm pretty sure your problem is your embedding the wrong controller in the nav controller. You want to embed the second view controller in your picture into the nav controller, and then have your last one segue from that view controller.
Also, with a nav controller you don't need to add a nav bar or the back button. The embedded controllers will have these by default.
Embedding controllers is kinda confusing at first so its a good idea to take a look at some additional docs.
Here's a good tutorial that I used when starting out: Tutorial
Related
My situation: http://i.stack.imgur.com/KTlVu.png
I have two views right now. From the second view, I want to have a back button that goes back to the initial view. I added a navigation controller and made it the initial view, and the navigation bar appeared for the first view(PlusCalendar). However, I don't know how to add a navigation bar for the second view(AddEventControllerVC) and add a back button that makes it go back to PlusCalendarView. I have looked at several tutorials and none of them surprisingly dealt with this problem. I am also looking at Apple's class reference and I am not sure if I have to initialize the navigation bar again from the second view controller. My questions are..
How come a navigation bar is not automatically added to all of my views?
For the second view, why does the navigation bar seem to be placed at the bottom?
How do I add a navigation bar on top of the second view, and add a "back" button?
The navigation bar was supposed to add the back button automatically. The problem was that the sigue between my first view and second view was set as a "modal popover." When I changed it to a "push" the back button appeared rightfully.
It seems that in model pop, the navigation bar is not record the view controller in its stack. So it cannot known the back track.In your case ,you should custom your navigation items in the second view controller. You can look this example: custom navigation bar
My app is based around a UINavigationController. On some screens I have a UITabBarController embedded within. When I go to a screen with the tab bar everything works fine on the first tab. (each tab is a UITableViewController) I can tap a cell of the table view and it'll take me to the next page by correctly pushing it onto my nav controller. If I go to another tab it loads the table view fine, but if I tap a cell to take me to another view I get this error:
Nested push animation can result in corrupted navigation bar
Finishing up a navigation transition in an unexpected state. Navigation Bar subview tree might get corrupted.
It pushes on the next page, but then if I attempt to press the back button on the nav bar the app will crash.
How could I go about fixing this? I looked at multiple other responses to similar problems, but none of them have helped me with this.
It would be really helpful if you share your code.
However this may be helpful for you:
while using tab bar , you should try that every single tab has its own navigation controller and use individual navigation controller to move to specific viewcontrller of specific tab. I know its hard to understand like this..
For e.g in app del you have your main navigation controller using which you push to next view controller ,say "SecondViewController".
Now this second one has got one tab bar with 4 tabs tab1,tab2,tab3,tab4. now each tab can have any no of view controllers associated with them. For e.g on tab1,you move to another screen and again from there to next screen and so on.
So to manage them there should be separate navigation controllers like,tab1nav,tab2nav,tab3nav,tab4nav.
tabBarController.viewControllers = [NSArray arrayWithObjects:"tab1nav".....and so on all nav, nil];
Now depending in which tab you are, use that tab's navigation controller to move to next screen of that tab or move back.
If you have viewDidAppear function,
Remember to put [super viewDidAppear:animated]; inside the function.
I am writing an iPhone application using the storyboards for an initial mockup. The problem I have right now is switching view controllers.
I have a table view controller and another view controller. All I want to do is use a back button to go back to the original screen, and I can do that, except the data disappears. The storyboard that I have is shown below.
I have the Back button going back to the original navigation controller. I have also had it going back to the Card view controller.
I have hard coded some example cells to just see how things look and they show up just fine when I run the simulation. When I click the back button though, it goes back to the All Cards screen and the cells that were there are now gone.
If I need to post some code just ask for what part would be helpful, I have done all of this through storyboards though.
I'm sure it's something stupid I've done, any point in the right direction would be greatly appreciated.
Basically: you pushed where you should have popped.
What you are seeing on the Storyboard does not exist yet. By segue-waying during runtime to a view controller it gets instantiated.
When you segue-wayed during runtime from the Add Card view controller "back" to the Card View Controller - here is what happened: instead of popping the navigation stack all the way back to the Card View Controller you already had, you just instantiated a new Card View Controller and pushed it onto the navigation stack. You could verify that by going all the way back to the original Card View Controller by tapping the back button several times.
What you could do to accomplish your task is this:
Instead of using the Storyboard for your back button use an IBAction in code:
- (IBAction)popToRoot:(id)sender {
[self.navigationController popToRootViewControllerAnimated:YES];
}
I'd like to use a slide up / down effect to display various viewControllers inside a navigation controller. A few other apps do this like square, and every day. Basically when the app loads, I want to display a base view in the navigation controller. Then slide up another view controller over top of it. When then hit a button in the nav bar, I want to slide that down and show the base controller, all the while retaining the navigation bar, and changing up nav items.
Originally I tried to make this work by showing a modal but that requires using a new nav bar.
Has anyone done this, or knows of a good example that illustrates this UI pattern? Thank you!
You could have UIViews in a UIScrollView
I am very new to Xcode and have encountered an issue with my app. I am trying to create a tab bar app. On one of the tabs I have a button that brings the user to a different ViewController. I want to have it so the user can select a button that would return them to the tab that had the button. I tried to set up an action from the button to the previous view (the tabbed screen), however the tab bar disappears. I hope this is makes sense.
Here is a link to a screenshot...
Easiest way to do this is to place a UINavigationController as the root view controller of the TabBarController. You can do this in storyboard by simply ctrl+dragging from the tabbar controller to the navigation controller and adding it as a relationship.
Here's an example using storyboards:
The next step is to set the third controller (in this case the table view controller) to your player view controller class.
Then, you can use the default back button and animation that comes with the navigation controller. If you prefer to hide the navigation bar at the top of the screen, then you can use your custom back button to call
[self.navigationController popViewControllerAnimated:YES];
You can also choose custom animations / segues, etc. but using a navigation controller to help you navigate screens is probably the simplest approach.