i have a uitableviewcontroller with uisearchdisplay controller. tapping on table cell pushes another view with some content and hides the navigationbar in the pushed view controller. the view controller has it's own uitoolbar, so far everything ok. the problem is that when a search result is shown and then tapping on the table cell view pushes the viewcontroller with uitoolbar with a navigation bar above it. so two bars on the pushed view. i dont want the navigation bar to be hidden. this code works if the viewcontroller is not pushed from search result
[self.navigationController setNavigationBarHidden:YES animated:YES];
what i'm missing using uisearchdisplay controller and hiding its navigation bar when other view is pushed?
I have redesigned my app. i dont use uisearchdisplay controller. instead i use uisearchbar and tableview which works perfectly.
Related
I have a UIScrollView that houses three UIViewControllers so that I can swipe between them like the view setup in SnapChat.
In my ViewController on the very right of the UIScrollView I want the user to be able to select things and then navigate to a new page. So essentially I want the right-most UIViewController to be a Navigation Controller with a nav bar and and View Controllers I navigate to from this page should also have a nav bar and a Back button as the UIBarButtonItem in the top left as standard.
I went about it the normal way, just taking the View Controller and selecting "Embed In Navigation Controller" and looking at the storyboard it looks right, but if I run it, there's no nav bar at the top of the view controller.
I have the nav bar visibility set to "Show Navigation Bar" but still nothing.
Any help appreciated
Edit
The issue is more than likely to do with how I add the view controller to the UIScrollView which is as follows:
let settingsStoryboard = UIStoryboard(name: "SettingsView", bundle: nil)
let settingsViewController = settingsStoryboard.instantiateViewController(withIdentifier: "SettingsViewController")
self.addChildViewController(settingsViewController)
self.scrollView!.addSubview(settingsViewController.view)
So I'm only adding the view. So how would I add it as a Navigation Controller? Or can that be done?
The Problem you are facing is that you are adding your view controller directly inside the scroll view but you should add the navigation controller inside the ScrollView.
So go to story board create a StoryboardID for that navigationController which is attached to SettingsViewController and then replace the SettingViewController ID with your navigationController's Storyboard ID.
maybe use addChildViewController
- (void)transitionFromViewController:(UIViewController *)fromViewController toViewController:(UIViewController *)toViewController duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options animations:(void (^ __nullable)(void))animations completion:(void (^ __nullable)(BOOL finished))completion NS_AVAILABLE_IOS(5_0);
I created a new navigation controller in my storyboard (not programmatically!) and set it to be "Root View Controller" to a regular UIViewController and added a button in it which says- forward to the next view controller (this second view controller is a view controller which I want that will have a back button to link to the initial view controller).
Now, whenever I try to link the button to the next view controller- "Pushing a navigation controller is not supported".
Help me please, and thanks
EDIT:
I accidentally subclassed UINavigationController, and not UIViewController in my class.
Thank you anyway.
I've tried this and have no problems, its all done in IB with no additional code required ...
Start a new project, "Single View Application" using story boards
Select storyboard and delete the views its produced.
Drag on a new Navigation Controller (it will bring a table view with it)
Delete the table and the table view controller, so you are just left with the Navigation Controller
Drag on a normal view controller
Right Click and drag from the Navigation controller to the new View and choose "Relationship - Root View Controller"
Drag a "Bar Button Item" on to the Navbar which should be visible on the top of your ViewController, you can rename this Forward if you wish.
Now drag on another view controller which is the one your "Forward" button will push in to view.
Right Click and drag from the bar button to the 2nd View Controller, and choose "Push"
Run the project and you will get a Single view with a Navbar and your button, clicking your button will Push the other view and give you a Back Button to return to the first View Controller. I'll try and post a picture of my storyboard if it helps.
Plasma
I had the same trouble. I wanted to have a navigation controller on each storyboard, so that each could run independently, be individually debugged, and so that the look would be right with the navigation bar.
Using other approaches, I found the UINavigationController would be retained from the original storyboard -- which I didn't want -- or I'd get errors.
Using the AppDelegate in your view controller to set the rootViewController worked for me (borrowing segue naming conventions from Segue to another storyboard?):
- (void)showStartupNavigationController {
NSLog(#"-- Loading storyboard --");
//Get the storyboard from the main bundle.
UIStoryboard *storyBoard = [UIStoryboard storyboardWithName:#"Startup" bundle:nil];
//The navigation controller, not the view controller, is marked as the initial scene.
UINavigationController *theInitialViewController = [storyBoard instantiateInitialViewController];
NSLog(#"-- Loading storyboard -- Nav controller: %#", theInitialViewController);
//Remove the current navigation controller.
[self.navigationController.view removeFromSuperview];
UIWindow *window = [(AppDelegate *)[[UIApplication sharedApplication] delegate] window];
window.rootViewController = theInitialViewController;
To swap views Programatically you would need to select the segue and give it an Identifier like "PushView" then call it like this ....
[self performSegueWithIdentifier:#"PushView" sender:self];
That will programatically do the same as clicking the forward button. I've created you an example project with the code discussed above. Has an -(IBAction) with code in you can use for programatially changing the view.
PushView.zip
I also wanted to do this, present a screen (that had an embedded navigation controller) when the user pushes a button.
At my first attempt, I connected the segue from the button in the fist screen to the Navigation Controller, and the app was crashing with this error "Pushing a navigation controller is not supported".
This is the solution I found:
Select the segue from the button in the first screen to the navigation controller.
If it had an identifier, copy its name. Then delete that segue.
Then create a new segue by CTRL-clicking the button in the first view controller and dragging to the VIEW CONTROLLER YOU WANT TO PRESENT (not to the Navigation Controller that is pointing at it), and select Push in the small pop up window.
Then click the icon in the middle of the segue and paste the name you copied in the first step as an identifier for it.
IB is going to give you a warning "Scene is unreachable due to lack of entry points and does not have an identifier for runtime access via -instantiateViewControllerWithIdentifier:." Don't worry, it works perfectly.
If you want to customize the string that is shown as the Back button to return, you can add this line in the viewDidLoad method OF THE VIEW CONTROLLER THAT IS BEING SHOWED AFTER THE BUTTON IS PRESSED, that is the Child view controller.
(replace "Settings" with the name you need)
- (void)viewDidLoad
{
[super viewDidLoad];
self.navigationController.navigationBar.topItem.title = #"Settings";
...
}
I'm pushing a number of views:
the top one is a UITabBarController
the second one is a UINavigationController with a pushed view
the third one is a modal box.
Once the close button in the modalbox is pressed I'm trying to revert everything to the default state and change the tabbar index.
[self dismissModalViewControllerAnimated:YES];
[self.navigationController popViewControllerAnimated:NO];
[self.tabBarController setSelectedIndex:3];
This dismisses the modal view but doesn't do anything else. Any ideas what could be wrong? I read something about a possible ios bug but I don't know how to work around it.
Neither UITabBarController nor UINavigationController is a view. Both are subclasses of UIViewController and have a property NSArray *viewControllers.
If you have an actualView controlled by an ActualViewController that is pushed on top of a rootView controlled by a RootViewController that is the rootViewController for the navigationController, and you also have a modalView controlled by a ModalViewController, then put
[self dismissModalViewControllerAnimated:YES];
in ModalViewController.m, and put
[self.navigationController popViewControllerAnimated:NO];
in ActualViewController.m (from whence modalView is pushed, presumably), and put
[self.tabBarController setSelectedIndex:3];
in RootViewController.m (from whence actualView is pushed, presumably).
If modalViewController was never added to the navigationController, then it doesn't know that the navigationController exists.
If actualViewController was never added to the tabBarController, then it doesn't know that the tabBarController exists.
The easy (and dirty) way:
Dismiss the modal view in the modal view. Make the navigation view controller the delegate of the modal view. Make the tabbar controller the delegate of the navigation controller. When the button is pressed call a method in the navigation controller that pops the view and calls a method of the tabbar controller which changes the selected tab.
I have a "landing page/view" that I dont want the navigation bar to show, so I turn it off during the viewDidAppear
navigationBarHidden = YES;
When i push a view on the stack and then move it off. the main landing page shows the nav bar then hides it which cause a flicker that I dont want.
is there a way to have the landing page be a UIView or something? When a menu item is touched the app would push a new view on top of the default landing page. It sound like it would be hard to do without having the landing page be a UINavigationController. Any thoguhts?
Try hiding the navigation bar in viewWillAppear, rather than viewDidAppear.
If you don't need to go back to the landing page, use a view controller for the landing page and present it modally from the navigation controller when the application starts.
So you do want to go back to the landing page.
It's hard to accomplish that with UINavigationController. Suppose your are going back to the landing view. While the transition, the old view should have a navigation bar, and the new view (landing page) should not have a navigation bar. UINavigationController does not allow you manually modifying the transition animation. In other words, you cannot animate hiding/unhiding the navigation bar along with push/pop animation (using viewWillAppear doesn't solve the problem).
So what would I do, if I really, really need this?
I would have a rootViewController (of UIViewController), whose view is the only subview of your application window. When your application starts, rootViewController add the landing view as a subview of its view. When the user selects an item there, you create an UINavigationController with the corresponding view controller as its root view controller.
And, using CATransition animation with type of kCATransitionPush and subtype of kCATransitionFromRight, you add the view of the navigation controller as a subview of rootViewController's view.
Then you need a 'back' button for the first view of the navigation controller. In all view controllers that are the first level view controllers of the navigation controller, create a bar button item with a text 'Back', and add it to their navigationItem.leftBarButton property. Set a target-action (probably to the rootViewController) pair for the button.
When the action message fires, use CATransition animation (now with kCATransitionFromLeft subtype), to remove the current navigation controller's view from rootViewController's view.
The transition may not look as perfect as the native UINavigationController, but I believe this is the best you could get.
Actually the way to do this is to implement UINavigationController's delegate method navigationController:willShowViewController:animated. This method is where you should handle hiding and showing your navigation bar so the animation will occur during the push/pop animation.
I came across a method that is simple and works well for me, and is not given here yet. I assume you have a view controller for the main landing page and it is set as root view controller of the navigation controller. Then you should hide/show the navigation bar in the viewWillAppear and viewWillDisappear methods of the main landing page controller:
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self.navigationController setNavigationBarHidden:YES animated:YES];
}
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:animated];
[self.navigationController setNavigationBarHidden:NO animated:YES];
}
Source:
http://www.iosdevnotes.com/2011/03/uinavigationcontroller-tutorial/
I added a subview to my application. The view controller is a UITableViewController. When I open the .xib file I see the table, but I can't drag a navigation bar onto it. So once the user enters the view, they have no way of getting back to the previous screen. What can be done?
the UITableView nib representation cannot have it. You can simulate the UI in the case you have a navigationController.
If you want to have a navigation controller, your UITableView has to be pushed into the stack of navigationController.
Assuming your view controller is ViewControllerA has a navigationController, then this method will make sure you have navigation controller in your UITableView:
[viewControllerA.navigationController pushViewController:tableViewController animated:YES];