I am wondering if it is possible to have a view controller in an iOS app that has a tabbar # the bottom with links to other view controllers but no tab for the current view itself?
Ideally what I would like to do is have a view controller A with a tab bar to views B and C. When navigating to page B or C you would see the B/C tab selected in the tab bar. When navigating back to controller A you would not see the tab bar, but once navigating back to view B/C it would show again.
Not that should matter but I am using Xamarin for development.
You should be able to. You add a UITabBar to ViewA. You can then add ViewB and ViewC as UITabBarItems to the UITabBar.
You would need a button in ViewB and ViewC that leads back to View A to get back to it (since ViewA will not be listed in the tab bar).
You can NOT use a UITabBarController for this. UITabBarController does not allow for customizing the UITabBar like this.
Related
So I have a UITabBarController and it has three buttons on the bottom in my iOS app. I want to add another set of buttons at the top but not quite sure on how to do this. I tried adding a UINavigationBar and a navigation button, and adding a view in to it, adding just the buttons, ect.... but to no avail. It won't let me add anything to the UITabBarController. Is there a way to do this?
Thank you very much.
the simplest way to that is to creat 3 buttons side by side and set their frame the way they divide the top of screen to 3 equals. it means u can create a tab bar with buttons manually.
but there's another way. i think this answer would help u
Positioning UITabBar at the top
To use the navigation bar you need a navigation controller. Now depending on your needs your tab bar controller should be inside a navigation controller or the other way around. If you want to be able to navigate away from the tab bar controller (have a screen without the tab bar) you should embed your tab bar controller into a navigation controller. If you only need the navigation bar for some tabs of the tab bar controller or you still want the tab bar to be visible all the time you should embed all (or just the ones than need a navigation bar) your root view controllers for each tab in navigation controllers. Finally if you do not need the navigation behaviour you could just put a regular view in the view controller that needs the bar at the top and some buttons in it and make them look the way you want.
You can embed a view controller in a navigation controller in a storyboard by selecting the view controller and the going to Edit->Embed in->Navigation controller.
Select the Any Tabbar ViewController then above the Menu -> Editor -> Embed In -> Navigation Controller its select, if you get the Navigation Controller then if you add the Navigation Button at Top of the ViewController, example :
In my previous question, i asked about including a log in page with my SWRevealController slide out menu before moving onto a home page. The solution was the following set up:
However, i need a navigation bar in order to house the button to open the menu (the navigation bar wont cover the status bar). When i insert a NavigationController in the following way, the menu no longer works
Why does this happen?
Put your Navigation Controller before Login/Signup Controller, then in viewWillAppear of Login/Signup Controller, hide the navigation bar
When a user taps on a UITabBar item, I would like to present a view controller modally, but I would also like the UITabBar to remain visible. When the user is finished with the modal view controller I want to dismiss it modally. Basically, I want to show one view controller on top of another and dismiss the top view controller with a modal animation, while keeping the UITabBar visible. I am thinking I have to do some sort of custom animation, but I cannot figure out how to make that work.
Anyone know how to do this for iOS 6 and iOS 7?
Modal segues coverup the previous navigation controller stack, so any existing tab, navigation, and tool bar controllers will no longer accessible. You'll either need to use a push segue to retain the existing tab bar, or add a new tab bar controller to the modal view.
I am developing an app that consists of a Tab Bar Controller that points to 3 view controllers (all with tabs). In one of these tab views I've made a button and I want it to open a new view (without a tab at the bottom). This new view would need a navigation bar with a back button to return to the previous view, so I was thinking I need to create a navigation controller?
Essentially this is what I'm trying to do (I apologize for the poorly drawn diagram).
How can I get this new view (entirely independent of the tab bar controller) to display programatically? Would this require a navigation controller?
You are describing a presented view controller. Call presentViewController:animated:completion:.
I very frequently do this with a navigation bar and a Back or Done button, just as you describe. But it's not a navigation controller or navigation interface; it's just a convenient way of showing the user how to get back.
For example, this is a presented view in one of my apps. The top is a navigation bar, and the cancel button gets us back (call dismissViewController...). The rest is a scrolling view (a UICollectionView) of buttons.
[myTabBar setSelectedIndex:1]
You may have to access the tabBar like self.tabBarController so… [self.tabBarController setSelectedIndex:1];
1 is index 1 in the tabbar's stack (this is like tapping a tabBar button manually)
I have an application with 5 UIViewControllers each inside a corresponding UINavigationController, all tucked inside a UITabBarController that displays 5 tabs at the bottom of the screen.
I want to display another UIViewController (inside a UINavigationController) when a dialog button is pressed.
This view should only be loaded and unloaded programatically; i.e. it should not appear in the tab bar. However, I want the tab bar to be visible always.
If I add the [UINavigationController view] to [self window] the UITabBar is covered. If I add it to any other layer, the UINavigationController adds on the compensation it has for the status bar so appears further down than expected.
A solution would be to have the 6th UINavigationController added to the UITabBar with the others, but with its tabBarItem hidden. Then I can show it and hide it using the tabBars selectedIndex property.
Accessing the tabBarItem through the UIViewController shows no obvious way of doing this.
#wisequark, I think you completely misunderstood and you have almost rewritten the architecture of my application. However I have a separate navigation controller for each view as they are mutually exclusive and there is no concept of "drilling down".
#Kendall, This is what I expect I will have to do - have the modal view appear with a hide button to bring back the normal interface. But it would be nice to keep the tab bar always visible, so I was just wondering if anyone knew of a way.
It sounds as though you have a mess on your hands. A UINavigationController is a distinct object that is very different from a UITabBarController. In general, your application should have a tab controller, one of who's tab's loads a UINavigationController which in turn loads it's views - not that both maintain management over the different views. It is also improper to refer to the display of a UIViewController as such an object doesn't have a visual representation. In the case of a UINavigationController, the navigation controller object is responsible for displaying a navigation bar and a table view (in the most common case) and for managing the display of all the views in the navigation hierarchy. It itself has no corresponding representation on screen. Similarly, a UITabBarController presents a tab bar and is responsible for the loading and unloading of the views and/or view controllers attached to the tab buttons. If we were to present this as an image, it would look something like this -
alt text http://img.skitch.com/20081112-2sqp7q4wafa34te1ga337u4k8.png
Well, it sounds like what you really want to do is present a modal view with the tab bar still visible. You could add your view as a subview of the tab bar controller's view. The tab bar's view is, oddly enough, not the tab bar itself but rather a view containing the tab bar and the selected item's view.
Alternatively, you could try calling presentModalViewController:animated: with the selected tab (i.e. [tabBarController.selectedViewController presentModalViewController:animated:]) as the receiver instead of the tab bar. I seem to recall doing this once (quite by accident) and the tab bar remained visible.
One more thought: since each of your five view controllers is a UINavigationController, you could always pushViewController:animated: onto the selected view controller, then hide the back button. Your view will just appear without animation. But you'll need to remember to pop your view controller off the stack whenever the user switches to another tab. That might take a bit more work.
The best idea I could think of would be to either push a modal navigation controller for your view (which would hide the tab bar which you do not want), or to get the tab bar controller current selected view controller (really your navigation controller for a tab) and push your new view controller on there - and then pop that view when another tab is selected with a tab bar delegate.
It seems wierd to me to push the view onto random tabs though, if the view is created from a dialog that is modal, I don't see why the view itself should not also be modal and hide tabs.