Keep in mind with the following question, I am still an iOS noob.
So I understand how to hide/show/recolor the navigation bar and whatnot. My next challenge is that some screens need the nav bar and others do not.
When my app starts off, I have the nav bar as hidden and then the user can click register or log in (both of which screens have a nav bar).
So those screens have the code to show the nav bar all while the first (welcome screen) has the code to hide the nav bar.
Here is the question: Why is it that when I first start my app, the nav bar is not there, but when I go to register/login and then hit the back button to return to the welcome page (initial page) then the nav bar is still there, even though my code to hide it is in the viewDidLoad method?
How can I fix this?
You can try moving the logic of hidding the Nav bar to the ViewWillAppear method, you just need to override it in your View Controller class.
Alternatively I would suggest to use a separate view controller to handle your login/registration screens and only use nav bars where you need them. You would have to create a view controller in your story board with your regular screens and embed the screens that need the tab bar in a navigation controller, You can then segue from your regular view controller into the navigation controller that includes your tabs.
Hope this helps
Related
I have a tab bar controller with a nav bar embedded in each tab as root. I am using a detail view controller that will be accessed from 2 of these tab bar stacks. When accessing this view controller in it's own stack, everything works as expected. However, if the user is in the other tab and segues to this detail view controller, the view slips behind the navigation bar. Its like the nav bar isn't even there, it just goes underneath it. I've been scratching my head trying to figure out what's going on, any insights would be greatly appreciated!
Figured it out for those in a similar predicament. Need to add navigationController?.navigationBar.translucent = false in viewDidLoad. In iOS 7 this changed, by adding this line it won't slide the view beneath the nav bar.
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
The incorrect navigation bar is appearing on my Table View Controller screen (see Storyboard Below).
I would like what's displayed on the storyboard to be my navigation bar (i.e. with "Main Feed" title and Sign Out button on the top right). However, this is what I'm actually getting -
There are two issues here: 1) The incorrect navigation bar is displaying (this one has a login back button); 2) the first few table view cells are placed underneath the nav bar vs. under it.
This happened after I embedded the Table View controller in the Tab Bar Controller. I want a bottom tab bar in the main portion of my application hence the reason why I added the Tab Bar Controller. Any suggestions on how to fix this? Rather than using the Tab Bar Controller in storyboard, is there a way to do this programatically? Thanks!
The navigation bar that you are seeing on top of the stack is the navigation bar from the UITabBarController itself, that is why you are seeing the back button show "login". There's a few ways to work around this, programmatically:
When you initialize the UITabBarController, set it's navigationController's navigation bar property to "hidden"
Go through each view controller form the beginning of your app up to where you first see this problem and in the "init" method of the viewController you are testing, set the navigationbar to hidden. Something like, self.navigationController?.navigationBar.hidden = true;
This is how you can "debug" this issue, but it's going to take some tweaking to get it right.
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
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