I have a tab bar with five tabs.
In one tab I have a mapview. I have an info button in the bottom right hand corner of the map. When a user clicks the info button, I want the mapview to flip to a view that has information about the mapview. I'd like a back button in the nav bar to flip back.
How can I do that?
I've managed to create a view controller and make a modal segue, but it doesn't keep the tab bar with it. Worse still, I created a back button on the flipside-viewcontroller with a modal segue back to the mapviewcontroller, and when you go back, the tabbar is gone!
I'm using a storyboard, and most tutorials I find use nibs and xibs. The more control-clicking I can do through the storyboard-IB and the less code the better. Any help is appreciated!
Once you have created in the backButton in the MapInformation view in storyboard, you can add the following to your MapInformation.h/m:
MapInformation.h:
-(IBAction)backButton:(id)sender;
MapInformation.m:
-(IBAction)backButton:(id)sender
{
[self.presentingViewController dismissModalViewControllerAnimated:YES];
}
After that, make sure to connect your IBAction in your storyboard(control-clicking).
Related
Attached are two images. The first shows my current main.storyboard, and the second shows my problem when I run the app. I have a tab bar controller that has two tabs. On the first tab there is a button. When pressed, the button goes to another view controller with content. At the top is a Navigation bar with a back button. After viewing content, I press the back button, and am back on the original page with the button, but the tab bar is missing. I have seen a few answered questions, but it appears they made their tab bar in the view controller instead of the storyboard. Another says that I should never return to a previous view unless I use an unwind segue. Is this true? If so, how do I set up an unwind segue. If not, how do I fix this problem otherwise? Thank you.
http://i.stack.imgur.com/IYmX2.png
http://i.stack.imgur.com/7slt5.png
The problem is in the wiring of your ViewControllers. You have probably embedded your UITabBarController inside the UINavigationController and not the other way around.
A correct layout looks like this in Interface Builder :
To reproduce:
In Interface Builder drop a UITabBarController. This will come with 2 UIViewController's already wired in.
Pick one of the UIViewController's (let's call it VController1) and click on Editor / Embed in / Navigation Controller. This wires the VController1 to live inside a UINavigationController that is inside the UITabBarController
Add a 3rd UIViewController next to VController1 Let's call it VController3
Wire in a segue between VController1 and VController3, for example with a button.
I hope that's clear enough
Try Linking the button in your viewcontroller (other than the views of the tabbed bar controller) with the tabbed bar controller. Create a segue that links the button with the controller of the tabbed bar application
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 a root view controller with just a simple navigation button that loads a questionview. When I use pushViewController a back button appears. Instead I want a custom button in the top right of the uinavigationcontroller and I want to remove the back button after the page transition.
how can i achieve this..
Take a look at UINavigationItem. You can accomplish both your goals by properly configuring your view controller's navigation item. Use the -setHidesBackButton:animated: to hide the back button, and the -setRightBarButtonItem:animated: to add your custom button on the right side of the navigation bar.
Ok, this is an odd one and I can reproduce it with a new project easily.
Here is the setup:
I have a UISplitViewController. In the left side I have a UITabBarController. In this tab bar controller I have two UINavigationControllers. In the navigation controllers I have UITableViewControllers. These table views have search bars on them.
Ok, what happens with this setup is that if I'm in portrait mode and bring up this view in the popover and I start a search in one of the table views and cancel it, the navigation bar becomes unresponsive. That is, the "back" button as well as the right side button cannot be clicked.
If I do the exact same thing in landscape mode so we are not in a popover, this doesn't happen. The navigation bar stays responsive.
So, the problem only seems to happen inside a popover.
I've also noticed that if I do the search but click on an item in the search results which ends up loading something into the "detail view" of the split view and dismissing the popover, and then come back to the popover and then click the Cancel button for the search, the navigation bar is responsive.
My application is a universal app and uses the same tab bar controller in the iPhone interface and it works there without this issue.
As I mentioned above, I can easily reproduce this with a new project. Here are the steps if you want to try it out yourself:
start new project - split view
create new UITableViewController class (i named TableViewController)
uncomment out the viewDidLoad method as well as the rightBarButtonItem line in viewDidLoad (so we will have an Edit button in the navigation bar)
enter any values you want to return from numberOfSectioinsInTableView and numberOfRowsInSection methods
open MainWindow.xib and do the following:
please note that you will need to be viewing the xib in the middle "view mode" so you can expand the contents of the items
drag a Tab Bar Controller into the xib to replace the Navigation Controller item
drag a Navigation Controller into the xib as another item under the Tab Bar Controller
delete the other two view controllers that are under the Tab Bar Controller (so, now our tab bar has just the one navigation controller on it)
inside the navigation controller, drag in a Table View Controller and use it to replace the View Controller (Root View Controller)
change the class of the new Table View Controller to the class created above (TableViewController for me)
double-click on the Table View under the new Table View Controller to open it up (will be displayed in the tab bar inside the split view controller)
drag a "Search Bar and Search Display" onto the table view
save the xib
run the project in simulator
while in portrait mode, click on the Root List button to bring up popover
notice the Edit button is clickable
click in the Search box - we go into search mode
click the Cancel button to exit search mode
notice the Edit button no longer works
So, can anyone help me figure out why this is happening?
Thanks,
Mark
Ok, got an answer from Apple Developer Technical Support. They investigated it and found it is a bug in the UIPopoverController. He gave me a workaround that kind of works but the right button in the nav bar ends up sliding across the screen after canceling the search. But, at least it fixes the issue. He also suggested I send in a bug report to Apple and I've done that as well. Hopefully they will fix this in the next version of the SDK.
Here's a copy of the relevant portion of the Apple engineer's response:
I've created my own project and dipped into what is going on and it looks like it's a bug in the UIPopoverController where after the UISearchBar is being dismissed, something is being obstructed in the navigation bar.
There's a workaround that I've found for now, though the animation that occurs is not amazingly optimal:
- Use the – searchBarCancelButtonClicked: method of UISearchBarDelegate and add the following:
self.navigationItem.rightBarButtonItem = nil;
self.navigationItem.rightBarButtonItem = self.editButtonItem;
As I said, it looks like the popover is pushing the button onto the navigation bar, so it may not be what you're looking for.
I tried the rightBarItem technique mentioned, but it didn't work for me. I had to do this (which is also a hack really)
[self.navigationController setNavigationBarHidden:YES animated:NO];
[self.navigationController setNavigationBarHidden:NO animated:NO];
This might be because my UINavigationBar isn't one unified with the popover, but I can't say for sure.
I have a simple tableview that navigates to a detailed view with a navigation controller. In the detailed view I need to create a button which when pressed isolates all other buttons displayed on the screen including the navigation controller back button. I know how to get the invisible button to cover most of buttons the screen but I can't get it to cover the navigation controller back button as this has been created in the parent view. How do I pop it over the top of the navigation controller from the detail view?
You can insert the button as a direct subview of the key window.
[[UIApplication sharedApplication].keyWindow addSubview:theButton];
(why not use an UIAlertView or UIActionSheet?)