I have a view setup inside a UINavigationController. The Blue Warning Bar displays over the top of the NavigationController's NavBar. In another part of my project I have another UINavigationController setup inside a UITabController. The NavBar allows enough room for the Blue Warning Bar to display without an overlay.
What am I missing? How can I prevent the Blue Bar from overlaying the NavBar?
Blue Bar of Shame
I figured it out!
Here is what was actually happening:
I have a View Controller inside a Navigation Controller. This View Controller contains a list of “Appointments”. When the user taps on an “Appointment” the application segues to a detail view that uses a Tab Bar Controller with five tabs, each of which have their own Navigation Controller. The first tab has an address field that allows the user to launch a Navigation App (Apple Maps, Google Maps or Waze) by tapping on it.
After opening the Navigation App, if the user returns to my application while the navigation app is still open and they did not provide the proper permission to suppress the Blue Bar of Shame, then the Blue Bar of Shame is displayed above my Navigation Bar, as it should be. If they then tap the back button to dismiss the Tab Bar Controller and return to the original Navigation Controller, the Blue Bar of Shame is overlaid on top of the Navigation Bar.
I'm not sure if this is a bug with UIKit or not.
What I did to work around this:
I changed the manner in which an Appointment List selection opens the selected Appointment's Detail. I was using a simple segue. For some reason when navigating back to the Appointment List view from the Appointment Detail, the Appointment List view's Navigation Bar was not accounting for the expanded status bar when the Blue Bar of Shame was displayed. I ended up completely replacing the rootView, which was displaying the Appointment List, with the Appointment Detail Tab Bar Controller. When transitioning back, I do the same thing in reverse - replace the Appointment Detail with the Appointment List; this seems to have alleviated the rendering problem.
I then created an extension for UIWindow to emulate the default navigation style transition during the rootView replacements.
Related
I have been trying to properly setup a navigation bar in one of my View Controllers for an hour now and have not found any working solutions.
I control-clicked on a button on my app's initial view controller(1st VC) and dragged to another view controller(2nd VC) and selected "modal" as the action segue.
I then added a navigation bar item to my 2nd view controller.
When I run my app on my iPhone, I can tap on the button on my app's initial screen and it will take me to my 2nd VC, and the 2nd VC does display the navigation bar, but the navigation bar does not have the default iOS 7 back arrow to let me go back to the app's initial VC.
I was under the impression that this could be setup exactly like I did above and that the back button functionality would be included by default.
Am I completely lost? Do I need to further customize navigation bar programmatically or with a tick box in the attributes inspector? Is "modal" the wrong action segue option?
I basically just want to have navigation bars at the top of a couple of my VC's so that the user can easily get back to the app's initial screen.
Thanks for the help.
Since you are presenting your second screen (2nd VC) as MODAL from your first screen (1st VC), you will not see the back arrow button on navigation bar. Your understanding about back button works for Navigation view controllers (push segue). For MODAL you need to put a cancel button on second VC's Nav bar and put a dismiss action for that.
I have an issue with a tab bar app. I am making a tab bar app with three bars on the bottom. On my my first bar it is a tableviewcontroller. When i ckick on the table view controller it takes me to a different view (which doesn't have the tab bar). When I clicked back to the home screen (which has the tab) the tab bar is gone.If you need a picture i will post it!
You may have set your UITableViewController segue to a modal style. If this is the case, you should change it to a push style.
In order for a push to work, your view controller needs to be in a UINavigationController. In your story board, select your root view controller and embed it into a Navigation Controller like this...
I am working on an application that uses a UINavigationController. The root view controller of my navigation controller is performing a search similar to the Email Application. When I press on the Search Bar I hide the NavigationBar. While I display the results, my Navigation Bar is still hidden, and when I tap on one of the results I want to push a new view controller on the stack. The problem is that if I make the Navigation Bar visible it animates really funny, falling from top. I want it to act exactly like in the Email app, to come naturally from the right, already placed on top of my pushed view controller. And, when I press back I want to present my root view controller in the same state:with the search bar "over" the navigation bar. I hope I am making myself as clear as posible.
Thank you!
Is it possible to have a UITabBar with lets say 2 tab bar items, but the view being shown not one that is part of the tab bar?
for instance I have orange view with the tab bar at the bottom, on the tab bar there is blue view button and green view button and the only way to see the green or blue views would be a user interaction to the tab bar. otherwise it will always display orange view.
Sorry if this is confusing, and how would I implement this in code?
This will almost certainly get your app rejected with the reason "this might lead to customer confusion".
UITabBarController is meant to show different sections of one app, not to affect a single view. Instead for this you want to use a UIToolbar.
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