I have a UITableViewcontroller embedded in a navigation controller. I added a UIBarButtonItem and set the layout guide so the button is viewable. I created a button ("Next") to allow me to navigate to the next screen. The Next button never appears. Is it hiding behind the TableViewCells?
Thanks,
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I had created a xcode project of single view application. I put a tableview and navigation item on my storyboard screen. Now, I bind the array data source to tableview and set the code as below to show edit button on the navigation button.
self.navigationItem.leftBarButtonItem = self.editButtonItem;
However, it seems can't working. I can't find any button on my navigation bar.
Someone can tell me how to make the edit button show?
Thanks!
I put a tableview and navigation item on my storyboard screen.
It sounds like maybe that's the problem. The way to set this up is to start with a UINavigationController as your storyboard's initial controller, and put the UITableViewController in a relation segue from that (as the navigation controller's root view controller). Now if the table view controller says
self.navigationItem.leftBarButtonItem = self.editButtonItem;
the edit button will appear in the navigation bar.
To see an example, start with the Master-Detail template (for iPhone). The Master view controller is structured in the way I'm describing.
I have a little problem related to implementing a tabbar with navigationcontrollers, when I have two views before the tabbarcontroller, which also uses a navigationcontroller.
This is my setup in StoryBoard
http://i.stack.imgur.com/8P4Zw.png
http://i.stack.imgur.com/ei3xa.png
But this is not working as I want, because I get two navigationbars (Picture number 2) when I enter the tabbar screen. I know I just can delete the navigation controllers in the tabbar or change the segue to modal, but if I do so, I would not have the ability to add individuel UIBarbuttons to each tabbar view or set individuel navigationbar titles. I would also like to use the push segue through out the app, as it is a kind of an "step by step" app. My question is: How I can eliminate the double navigationbar, when I enter the tabbar, but still have the ability to set a title for each view related to the tab and continue to use the push segue and a navigationcontroller?
I hope you understand my question.
You -can- set individual buttons for each view controller. Grab a tab bar item and drag it to the navigation bar of whichever view controller you want. You can also set the individual title of each view controller. Like you said, there is no reason for the 2nd and 3rd navigation controller you added right after the tab bar controller.
You can set buttons both in the Storyboard and programmatically and they can be different at different stages of your view controller. You should thus delete the second and third navigation controllers and either drag and drop the buttons you want where you need them, and/or deal with it programmatically if necessary.
One example of what you could do programmatically:
UIBarButtonItem *yourButton = [[UIBarButtonItem alloc] initWithTitle:#"yourTitle" style:UIBarButtonItemStylePlain target:self action:#selector(yourSelector)];
self.navigationItem.leftBarButtonItem = buttonSegueBackToAccueil;
This creates a UIBarButtonItem for the controller you are in and places it as the left button of the navigation controller bar. It will run the method "yourSelector" when clicked.
Can anyone tell me how to relate the bar button item to switching the view so that when the button is pressed it will load the next view?
I'm a newbie and using storyboard for my app. any good reference appreciated
Yes. UIbarButtonItem is on top of the navigationBar. If click on the button it will swith to next view.UIBarButtonItem won't load view. just it will navigate to next viewController.
I orignally had a tab bar to change views within my app. However now I've gotten rid of the tab bar and have a toolbar with a menu button. When this button is pushed, a popover comes up with buttons that will hopefully change my screen.
When you create a UIPopoverController you set a UIViewController which can have a class where you define a protocol for the controller that creates the UIPopoverController notified of any action...
I have a UINavigation bar in a few of my views without using a UINavigationController. So i dont use the navigation controller to push new views, I load new views again which have a "static" UINavigationBar at the top.
So currently the navigation bars just show the title of which ever view the user is looking at, they have no other function.
In some of my views I have a requirement to have a back button, about 3 views out of 10.
So I was wondering if it is possible for me to insert a back button that states back and goes back to the previous screen for just these 3 views, so I would have to be able to insert the back button and also detect when it was pressed.
Can I do this with my current set up or do I need to go back and create a view with a UINavigationController and use that to push and pop my views and somehow suppress the back button on the 7 screens that I dont want it to display on?
EDIT:
I've tried the following way:
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:#"Back" style:UIBackButtonItemStyleBorder target:nil action:selector(myaction)];
[navItem setBackBarButtonItem:backButton]; //Doesn't work
[navItem setLeftBarButtonItem:backButton]; //Works but lacks the back arrow style of the back button
[backButton release];
So I can add a button but it doesn't look like the back button, is there a way to make it look like the back button or should I scratch and just use a UINavigationController? And if I do how can I suppress the back button when I dont want one?
You can if i get you correctly. Just add a custom button to the navigation as leftBarButtonItem or backBarButtonItem and give it a custom button press action. in the button method you can remove this view and show your previous view. But that said the better way is to use normal UINavigationController if your app has Navigation bar in all screens.