Hi I'm new IOS and have been using the storyboard feature, I followed this tutorial which resulted in a working app. I'm slightly confused when to use a navigation controller. In the tutorial above, every tab had a navigation controller. Is this necessary?
I'm in the process of creating a new app and it seems to work whether I add a navigation controller or not to each tab (see pic).
I'm just curios what is the correct process?
Thanks.
As your app is using a UITabBarController each tab will display a separate 'branch' of views. If any of these 'branches' needs its views to be wrapped in navigation functionality (or simply display the navigation bar with a title etc) then you would add a 'UINavigationController` as the primary view controller for that tab, in between the tab bar controller and the first view controller you wish to display for that tab.
If you want a tab to simply display a view controller which doesn't need hierarchical navigation or a navigation bar then you wouldn't need to use a UINavigationController and can directly set your view controller as the controller for that tab.
Related
I'm new to XCode. Recently, I've been trying to create a Tab Bar Controller to connect 2 Table View Controllers. One of the Table View Controllers has a Search Bar on it.
I have tried to do this to create the Tab Bar Controller between the 2 Table View Controllers:
This is how I tried to create the Tab Bar Controller
However, the app will simply crash when it opens. So instead, I amended the main storyboard by adding a Navigation Controller before the Tab Bar Controller:
This is how I have amended the main storyboard so the app runs without crashing
Although the app runs without crashing, the problem I now have is that the Navigation Areas for the Table View Controllers are not displaying correctly:
This is how the Table View Controller's Navigation Area is incorrectly displayed while running the app
Before I added the Tab Bar Controller, it was supposed to looked like this:
This is how the Table View Controller's Navigation Area is supposed to look like
I'm thinking that it has something to do with adding the extra Navigation Controller before the Tab Bar Controller. Maybe this has caused a problem since there are now 2 Navigation Controllers connected to 1 Table View Controller?
Could someone please download the sample project from this website at the end of the tutorial and attempt to create the Tab Bar Controller between 2 Table View Controllers without disrupting the Navigation Area?
https://www.raywenderlich.com/157864/uisearchcontroller-tutorial-getting-started
Thanks so much!!
I managed to solve the problem. I simply had to uncheck the "Show Navigation Bar" for the initial Navigation Controller.
I have UITableViewController embeded in a UINavigationController in my app. When a row is selected it pushes a UITabBarController. So far so good. The problem is that some of the tabs I push more views but the tab bar gets hiden. I've tried setting hidesBottomBarWhenPushed = NO, but it doesn't work.
I'm using XCode 4 with storyboard
Any ideas?
I've had this problem in one of my apps (though it was in iOS 4.x, using nibs not storyboard).
What I did to solve it: You want to have the root controller for each tab (the one with tabitem, etc) be a navigation controller - and when you push new views onto this navstack, they will respect the top navigation bar and bottom tab bar (they may actually display two navbars, so you have to be careful, but generally this is the way to go.)
first of all you might want to take a look at this
viewController: The view controller that is pushed onto the stack. It
cannot be an instance of tab bar controller.
so pushing an instance of tab bar controller is not recommended. There's a good reference there that might accomplish the task you wanted ill just provide the link here
I am attempting to connect a tabbar to a navigation controller.
I have the following 4 options (see image).
In the tutorial I'm following however, it says that two options will be shown only (viewControllers, and performSegewithIdentifier) so which one should I use?
Ayrad, in your storyboard, since you want to use a navigation and a tab bar controller, the main controller must be the tab and then the navigation controller, so you will arrange you canvas in order to first have the TabBarController then the NavigationController connected to it, and then a view connected to both of them, this way you will have a view with both the tab and the navigation controller.
I am fairly new to programming with objective-c and xcode 4 and I am trying to make a tab bar application and add a navigation control to a specific tab.
I am able to add a navigation controller inside the tab bar controller, by clicking dragging the navigation controller into the tab bar controller of the MainWindow.xib window. However, by doing this and linking the class and nib to the corresponding view controller and view, respectively, this adds a new tab, which I don't want (as I want a specific/already in existence tab to also contain the nav controller).
Thanks.
I'm not sure what you exactly want to do, but as my understanding, you want navigation controller under tabbar item that is already existed in the tabbar controller. It's not good practice to do it in that way. Rather than that, try add navigation controller first and then add ViewController inside of it (which makes your life easier). Usually Navigation Controller is root of ViewController, but not vice verse. Hope this help.
Hello everybody i need your help.
I am making a tab bar based application in iphone. i have more than 5 button to show in tab bar. when i did it, five button displayed fifth button is more..... but when i clicked on more then more button came in a table view not in tab bar.
That's how it works. From the documentation (http://developer.apple.com/library/ios/#featuredarticles/ViewControllerPGforiPhoneOS/TabBarControllers/TabBarControllers.html%23//apple_ref/doc/uid/TP40007457-CH102-SW2):
If you add more than five items to the
viewControllers property, the tab bar
controller automatically inserts a
special view controller (called the
More view controller) to handle the
display of the additional items. The
More view controller provides a custom
interface that lists the additional
view controllers in a table, which can
expand to accommodate any number of
view controllers. The More view
controller cannot be customized or
selected and does not appear in any of
the view controller lists managed by
the tab bar controller. For the most
part, it appears automatically when it
is needed and is separate from your
custom content. You can get a
reference to it though by accessing
the moreNavigationController property
of UITabBarController.
That is intended behavior and not an issue, if you read the viewController Programming guide you could have seen that right away: http://developer.apple.com/library/ios/#featuredarticles/ViewControllerPGforiPhoneOS/Introduction/Introduction.html#//apple_ref/doc/uid/TP40007457