I have multiple storyboards in my project. I have a home page view controller in one storyboard, and I have a Setup view controller embedded in a navigation controller in a separate storyboard. Now when I Present the setup view controller navigation controller from the homepage view controller, the status bar won't hide. But when I set the setup view controllers storyboard as the main storyboard file base in the info.plist and the setup view controller navigation controller is the first view presented then the status bar will hide. I'm using the code below to hide the status bar. Can someone show me how to hide the status bar when the status view controller is presented by another storyboard view controller instead of being set as the first view controller. Here is the code I'm using to hide the status bar,
override var prefersStatusBarHidden: Bool {
return true
}
You can hide status bar in a condition.. You need to add another Window Object over the status bar.
let stautsBarWindow = UIWindow(frame: UIScreen.main.bounds)
stautsBarWindow.backgroundColor = UIColor.clear
//Instead of Presenting just assign your viewController in below line it will hide your statusBar as well.
stautsBarWindow.rootViewController = yourSideMenuViewController
stautsBarWindow.windowLevel = UIWindowLevelStatusBar
stautsBarWindow.isHidden = false
I have Viewcontroller "Home" that have Menu button on navigationBar, when user click on meny i display ViewController over home to display Menu.
To do this i set "Defines context" to the home ViewController
and Presentation to "Over Full Screen" to the menu ViewController
Menu containt buttons that have segues to new storyboard that contains UINavigation and ViewControllers
On that ViewControllers i have this function
override func prefersStatusBarHidden() -> Bool {
return true
}
This function is called but StatusBars is not hidden
I have "View controller-based status bar appearance" set to YES
The problem come from "Over Full Screen" because when i change it, it work but for my design i need to use "Over Full Screen"
I have UITableViewController (its name is News) and UIViewController (its name is DetailViewController) and UISplitViewController. I want it to show a back button when I use an iPad in portrait orientation. I made the button but I cannot name it. I wrote following code
detailController.navigationItem.leftBarButtonItem = self.splitViewController?.displayModeButtonItem()
detailController.navigationItem.leftItemsSupplementBackButton = true
detailController.navigationItem.leftBarButtonItem?.title = navigationController?.topViewController.title
But it doesn't show the name of the button. I see only the arrow (the arrow works).
I also tried the following in my UITableViewController(News) but it didn't help me
I use two segues for different devices with this code.
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath){
var screen = UIScreen.mainScreen().currentMode?.size.height
if (UIDevice.currentDevice().userInterfaceIdiom == UIUserInterfaceIdiom.Pad) || screen >= 2000 && UIDevice.currentDevice().orientation.isLandscape == true && (UIDevice.currentDevice().userInterfaceIdiom == .Phone){
performSegueWithIdentifier("showDetailParse", sender: nil)
self.dismissViewControllerAnimated(true, completion: nil)
} else if (UIDevice.currentDevice().userInterfaceIdiom == .Phone) {
performSegueWithIdentifier("showParse", sender: nil)
}
}
My result on an iPad
My result on an iPhone
Thanks to Paul Hegarty and his invaluable lectures at Stanford University and available on iTunes U... in this case his 2013 lectures under the title "Developing iOS 7 Apps for iPhone and iPad" and specifically "Lecture 11 Table View and the iPad".
If you're using storyboards, then:
Open your main storyboard and select the Navigation Controller that links to the Master View Controller in your Split View Controller group;
Open the Inspector;
Under the heading View Controller, against the property Title, enter the words that you would like to appear alongside the "Back" button chevron.
See screenshot of Master Detail Xcode template set up with a Split View Controller...
If you're instantiating views in code, then:
obtain a reference to the Navigation Controller for the Master View controller;
set the title property of that Navigation Controller with the NSString of words that you would like to appear alongside the "Back" button chevron.
As an aside, I would highly recommend implementation of Auto Layout and Size Classes, that you remove the text for the Back Button property and let size classes determine the appropriate words for your Back Button.
For example, as per the question...
The Solution:
Here is the way to fix the issue with the detail view controller's back button:
For any view controller that gets pushed onto the primary navigation controller's stack, set that view controller's title. (Either in its viewDidLoad: method or in the pushing view controller's prepareForSegue:sender: method.)
Set the primary navigation controller's title in the child view controller's viewDidLoad: method.
For example, in MasterViewController.m:
- (void)viewDidLoad {
[super viewDidLoad];
[self setTitle:#"Foo"];
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[[self navigationController] setTitle:[self title]];
}
This will keep the detail view controller's back button title in sync with the top primary view controller's title.
What Is Going On:
UINavigationController, its rootViewController, and UINavigationItem each have a title property.
Note that the back button shown for a current view controller is actually the previous view controller's backButtonItem. (See Figure 1-7 Navigation bar structure)
A UINavigationController will automatically inherit the value of the title of its root view controller, but will not automatically inherit the title of any other controller that gets pushed onto its stack. This is why, by default, the back button of the detail view controller will always show the title of the primary navigation controller's root view controller. You might allocate, initialize, and push multiple child view controllers, but only one navigation controller is allocated and initialized for each side of a standard split view controller.
Additionally, a view controller's navigationItem's title property (whose value will appear in the label in the center of the navigation bar) does not inherit its value from the navigation controller, but from the view controller itself. If you set the view controller's title property to "Bar", and the containing navigation controller's title to "Foo", the label displayed in the center of the navigation bar will say "Bar".
I am setting the title field of a UIViewController via Interface Builder/Storyboard:
This view controller is nested in a UINavigationController which in turn is nested within a UITabBarController. When I run the app, I my navigation item has no title, neither does the tab bar item.
If I explicitly set the view controller's navigation item's title, and also it's tab bar item's title in interface builder, then it works just fine.
I am wondering:
a)If I am not using Storyboard but just regular xibs, setting the title of a view controller implicitly sets the navigation items' title as well as the tab bar item's title. But it's not the same storyboard. Is this the intended behaviour?
b) What is then the purpose of the view controller's title (in Storyboard)? it seems to have no effect.
Thanks!
You can set the title of the UINavigationBar in Storyboard by double clicking the actual navigationBar and typing in a title right there. This only sets the title for the UINavigationBar.
Setting the title in code offers some different possibilities.
self.title = #"Your title"; will set the title of a navigationBar and also cause the title to cascade down to a UITabBarItem, if present.
self.navigationItem.title = #"Your title"; will only set the title of the navigationBar, assuming a UINavigationController is present, and NOT affect a UITabBarItem.
self.navigationController.title = #"Your title"; will set the title of a UITabBarItem but NOT the UINavigationBar.
Step 1
If you're looking at a Xib in Xcode's Interface Builder, take a look in the "Document Outline" panel (second panel from the left). Expand the view controller you're working with until you find an icon labelled: Navigation Item.
Step 2
If you then highlight the Navigation Item and open up the Utilities panel (the farthest on the right), and click the Attributes Inspector, you'll see where you can set the title of the view controller. This is the way to do it in Interface Builder, rather than doing it through code.
I ran into this issue this morning. Here are the stabs I took and the final workaround.
This correctly logs the child view controller's title as set in the storyboard, but has no effect on what's being presented:
- (void)viewDidLoad
{
[super viewDidLoad];
NSLog(#"Title: %#", self.title);
}
This has no effect; the title still doesn't show (probably doing an "if (![_title isEqualToString:title]){}" user the hood:
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = [self.title copy];
}
This causes the title to be set correctly:
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *title = self.title;
self.title = nil;
self.title = title;
}
My guess is that the UINavigationController is pulling the title for the view being presented before it has been loaded from the storyboard, but then doesn't start listening for changes until after the property has been set. I don't use storyboards or nibs very often, however, so it's quite possible there's a magic checkbox for this hidden somewhere that I've missed.
In any case, it looks like you can either do the self.navigationItem.title = self.title dance, or the above, as a workaround and still maintain your titles in IB.
Apples docs for this are kinda clear:
The navigation controller updates the middle of the navigation bar as
follows:
If the new top-level view controller has a custom title view, the navigation bar displays that view in place of the default title view.
To specify a custom title view, set the titleView property of the view
controller’s navigation item.
If no custom title view is set, the navigation bar displays a label containing the view controller’s default title. The string for this
label is usually obtained from the title property of the view
controller itself. If you want to display a different title than the
one associated with the view controller, set the title property of the
view controller’s navigation item instead.
Emphasis mine.
I just ran into the same problem. I don't understand why it's not working... It might be on purpose or just be a bug.
To change the title in interface builder, you can click on the navigation item directly and change the title there:
Everything else on this page failed. For now, this worked, in code, in viewDidLoad:
NSString* text = #"My page title";
UIFont* font = [UIFont systemFontOfSize:20.0];
const CGSize SIZE = [text sizeWithAttributes:#{NSFontAttributeName:font}];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, SIZE.width, SIZE.height)];
label.text = text;
label.textColor = UIColor.blackColor;
self.navigationItem.titleView = label;
If you have UINavigationItem present, then you must use the navigation item title in the storyboard. If you don't have a navigation item for a view controller, then the UINavigationController will use the view controller's title property.
Example :
In your storyboard, if you have a navigation item the navigation controller doesn't need to read the view controller's title. Even if the title field is empty for this navigation item.
Remove the navigation item (if you can, you won't be able to do it for the root view controller but you will for the others) and your title will be correctly loaded
I think it works as designed although we expect another behaviour. If you print the title property in - (void)viewDidLoad it will be the same value that you set in story board so I see no reason of this not working unless Apple's choice.
a) If I am not using Storyboard but just regular xibs, setting the title of a view controller implicitly sets the navigation items' title as well as the tab bar item's title. But it's not the same storyboard. Is this the intended behavior?
I believe this is the intended behavior. I think that the purpose of the title attribute of a view controller is more of a property that can be used at the developer's discretion perhaps for distinguishing between controllers.
Another reason for this change I think is that your navigation item's title may need to be different than the tab bar title, since the tab bar title cannot be nearly as long as the navigation title.
b) What is then the purpose of the view controller's title (in Storyboard)? it seems to have no effect.
I think I mentioned this in my first paragraph. I think that the title attribute of a controller is a property that the developer can use perhaps for distinguishing between controllers.
I tried all of the above methods, even tried manually adding a navigation bar but to no avail.
So this is what worked for me.
Remove any navigation bar item you manually added to the view controller and add this to your viewDidLoad method
self.navigationController.navigationBar.topItem.title = #"My Title";
or
self.navigationController.topViewController.title = #"My Title";
In my case I solve with this:
[self.tabBarController.navigationItem setTitle:#"My Title"];
I can't understand why Navigation Bar doesn't appear.
For example, I tried to add Navigation Bar like this:
1) File -> new project -> single view application -> storyboard -> viewcontroller -> attributes inspector -> Top Bar -> Navigation Bar.
It appear at storyboard, but doesn't appear when app run on simulator
Also I can't understand why it doesn't appear as a subview
In viewDidLoad:
UINavigationBar *navBar = [[UINavigationBar alloc] init];
[self.view addSubview:navBar];
That's not how you add a navigation bar to a view in Storyboard.
The normal way to do this, is to select your View Controller in your story board, then choose "Editor" in your menu, then "Embed in" => "Navigation Controller".
You should see a navigation controller appears with an arrow connecting to your original view controller.
Then, choose your newly appeared navigation controller, check the "Is Initial View Controller" checkbox in the inspector, and viola, that should give you what you need.
And you don't customise your navigation bar though UINavigationBar. Instead, you customise what appears in your navigation bar by changing your view controller's navigationItem.
In your view controller's viewDidLoad:, try the following:
self.navigationItem.title = #"My Title";
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem: UIBarButtonSystemItemCamera target: self action: #selector( whatEverMethod: )];
And you should see a right bar button and a title being set in your view controller.
--
What the "attributes inspector" => "top bar" does is to show you what the view will look like if it is embedded in a navigation controller. it does not actually add the navigation bar for you.
If you look closely, you will see that the "top bar" option is in a section called "simulated metrics. (They are just simulated, not really added to your view)