I am trying to show a specific viewcontroller, inside my UITabBarController by using the viewcontrollers storyboard id.
I can only get the viewcontroller to be shown without the UITabBarController.
How do I also show the UITabBarController?
I have tried this:
let identifier = "stats_view"
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc = storyboard.instantiateViewController(withIdentifier: identifier)
window?.rootViewController = vc
Which gave me the problem listed above.
try the following code.
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
if let myTabBar = self.window.rootViewController as? UITabBarController { // Getting Tab Bar
myTabBar.selectedIndex = 2 //Selecting tab here
return true
}
}
You should set selectedIndex of tabBarController to view specific viewController which are embedded in tabBarController. Use following code.
self.tabBarController?.selectedIndex = 1
Related
I have a UITabBarController and I want to show this screen and not the login screen if the user session is still active.
My UITabBarController has 3 ViewControllers and the problem is that I don't see the TabBar links in the bottom and I'm unable to navigate.
Without the following code everything works fine. I mean after login I can navigate.
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
FirebaseApp.configure()
if Auth.auth().currentUser != nil {
window = UIWindow(frame: UIScreen.main.bounds)
window?.makeKeyAndVisible()
window?.rootViewController = HomeTabBarController()
}
return true
}
I have also tried the following code to set the rootViewController but it's the same problem.
When I try to set one of the other view controllers as root (one of the children), the Tab Bar doesn't show at all
var rootView: MyRootViewController = MyRootViewController()
if let window = self.window{
window.rootViewController = rootView
}
What am I doing wrong here?
I was facing same issue and I came across your post, the problem with your code is that HomeTabBarController() is creating a whole new TabBarController so to fix it try the following approach I used.
if Auth.auth().currentUser != nil {
print("******************************User Present******************************")
self.window = UIWindow(frame: UIScreen.main.bounds)
let storyboard = UIStoryboard(name: "Main", bundle: nil)
// create view controllers from storyboard
// Interface Builder -> Identitiy Inspector -> Storyboard ID
// Set up the Tab Bar Controller to have two tabs
let tabBarController = storyboard.instantiateViewController(withIdentifier: "HomeTabBarController") as! HomeTabBarController
// Make the Tab Bar Controller the root view controller
window?.rootViewController = tabBarController
window?.makeKeyAndVisible()
}
Edit Make sure to add the Identifier to your TabBarController
// Interface Builder -> Identitiy Inspector -> Storyboard ID
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
//// this code changes the initial point of aap///////
window = UIWindow(frame: UIScreen.main.bounds)
let nav = UINavigationController()
let myview = SettingTabbar()
nav.viewControllers = [myview]
window?.rootViewController = nav
window?.makeKeyAndVisible()
return true
}
And Function SettingTabbar is:
func SettingTabbar()->(UITabBarController)
{
//Setting TabBar
let tabbar = UITabBarController()
//Designing Tabbar Item Images
let table = UITabBarItem(title: nil, image:UIImage(named: "002-list") , tag: 0)
let collection = UITabBarItem(title: nil, image: UIImage(named: "001-collect"), tag: 1)
let insert = UITabBarItem(title: nil, image: UIImage(named: "add"), tag: 2)
//Getting TabBar ViewControllers
let TableView = newViewController()
let CollectionView = PersonCollectionViewController()
let InsertRec = nextViewController()
//Setting ViewControllers on TabBar Items
TableView.tabBarItem = table
CollectionView.tabBarItem = collection
InsertRec.tabBarItem = insert
let controllers = [TableView,CollectionView,InsertRec]
tabbar.viewControllers = controllers
tabbar.viewControllers = controllers.map{UINavigationController(rootViewController: $0)}
//Setting Title
tabbar.navigationItem.title = "Person Record"
return tabbar
}
The problem is this line:
window?.rootViewController = HomeTabBarController()
That is the wrong HomeTabBarController. It is a totally new HomeTabBarController with no children. You need to fetch the HomeTabBarController that’s in the storyboard.
I finally found the solution: As #matt suggested I had to fetch the HomeTabBarController that’s in the storyboard.
window = UIWindow(frame: UIScreen.main.bounds)
let storyboard = UIStoryboard.init(name: "Main", bundle: nil)
// controller identifier sets up in storyboard utilities
// panel (on the right), it called Storyboard ID
let viewController = storyboard.instantiateViewController(withIdentifier: "HomeTabBarController") as! HomeTabBarController
self.window?.rootViewController = viewController
self.window?.makeKeyAndVisible()
window?.makeKeyAndVisible()
window?.rootViewController = viewController
For the purpose of this question, I'm showing a stripped down version of my view hierarchy. My app contains a UITabBarController as the base. Each tab's top most view controller is a navigation controller and it has view controllers embedded in each of them.
Let's take the first tab.
UITabBarController -> UINavigationController -> UITableViewController -> UIViewController
Let's say the UITableViewController instance is some sort of a list and the UIViewController is the detail view. When the user taps on an item from the list, it takes you to the detail view. And when that happens I have set the UIViewController's hidesBottomBarWhenPushed property to true so that the tabbar at the bottom would hide when the user is in the detail view.
My app receives push notifications. When tapped on them, it should open directly into the detail view. I can get it to navigate there. But the issue is the tabbar at the bottom is still visible!
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
let storyboard = UIStoryboard(name: "Main", bundle: Bundle.main)
window = UIWindow(frame: UIScreen.main.bounds)
let tabBarController = storyboard.instantiateViewController(withIdentifier: "TabBarController") as! TabBarController
if openingFromPush {
let firstNavigationController = storyboard.instantiateViewController(withIdentifier: "FirstNavigationController") as! UINavigationController
let tableViewController = storyboard.instantiateViewController(withIdentifier: "TableViewController") as! TableViewController
let viewController = storyboard.instantiateViewController(withIdentifier: "ViewController") as! ViewController
viewController.hidesBottomBarWhenPushed = true
firstNavigationController.viewControllers = [tableViewController, viewController]
tabBarController.viewControllers?[0] = firstNavigationController
// tabBarController.tabBar.isHidden = true
window?.rootViewController = tabBarController
} else {
window?.rootViewController = tabBarController
}
window?.makeKeyAndVisible()
return true
}
I set that same hidesBottomBarWhenPushed property to true in the when I instantiate the view controller but that doesn't seem to have any effect. I even tried straight up hiding the tabbar like this tabBarController.tabBar.isHidden = true but that doesn't do anything at all either.
I can't figure how how to resolve this. Any help would be appreciated.
I attached a sample Xcode project here as well if that helps.
You can use this code for pushing detail view controller:
if openingFromPush {
let viewController = storyboard.instantiateViewController(withIdentifier: "ViewController") as! ViewController
viewController.hidesBottomBarWhenPushed = true
if let nvc = tabBarController.viewControllers?[0] as? UINavigationController {
nvc.pushViewController(viewController, animated: false)
}
window?.rootViewController = tabBarController
}
You don't need to init navigation view controller and table view controller again its already inside tab bar controller
I'm trying to instantiate a viewcontroller that has a navigation controller embedded in it from the AppDelegate. Here's what my code looks like:
var window: UIWindow?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
let dm = DefaultsManager.sharedManager
if dm.rememberMe == true {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc = storyboard.instantiateViewControllerWithIdentifier("VolunteerVC")
self.window!.rootViewController = vc
self.window?.makeKeyAndVisible()
}
the right viewcontroller is instantiated but the navigation controller that was embedded in it is now missing. Any idea how to instantiate it with the nav controller still connected?
Figured it out, give the nav controller a name under storyboard ID in the storyboard and for the line:
let vc = storyboard.instantiateViewControllerWithIdentifier("VolunteerVC")
replace the name of the viewcontroller with the name you gave the navigation controller.
I am trying to implement SWRevealViewController Library as given in VideoTutorial, I was successfully able to do that but I don't want everything on 1 storyboard, I want to break it down in 2 storyboards
AppDelegate Code:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
storyboard = UIStoryboard(name: "MenuDrawer", bundle: nil)
initialViewController = storyboard.instantiateViewControllerWithIdentifier("SWRevealViewController") as! UIViewController
self.window?.rootViewController = initialViewController
self.window?.makeKeyAndVisible()
return true
}
Rightnow MenuDrawer storyboard has everything
SWRevealViewCOntroller
TableViewController
NavigationController
RootViewController
and below segues which are defined in Library:
segue1 (sw_rear) : between SWRevealViewController --> TableViewController
segue2 (sw_front) : between SWRevealViewController
--> NavigationController
now I want 3 and 4 in different storyboard. but when I move 3 and 4 to different storyboard how do I create segue 2 across storyboards
I am not really sure if I understand your problem but you can try this to retrive your second storyboard and load your navigationViewController from there.
let storyBoard : UIStoryboard = UIStoryboard(name: "SecondStoryBoard", bundle:nil)
let deleteViewController = storyBoard.instantiateViewControllerWithIdentifier("SecondNavigationController") as UINavigationController
as far as iknow, you don't need to push again the segue 2 on 3 and 4. what you need is refer the new view (3 and 4) on the segue 2. in Obj-c will be like that:
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
SWRevealViewController *view = [mainStoryboard instantiateViewControllerWithIdentifier:identifier];
[view setModalTransitionStyle:UIModalTransitionStyleCoverVertical];
[self.navigationController pushViewController:view animated:YES];
where "self" is the ViewController where segue 2 has been created.
i hope have answered your question.
Try This First Of All Make the other storyboard and add what you need then call the other storyboard in
AppDelegate Code:
func application(application: UIApplication,didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
var storyboard = UIStoryboard(name: "MenuDrawer", bundle: nil)
var storyboard1 = UIStoryboard(name: "NewStoryBoardName", bundle: nil)
var initialViewController = storyboard.instantiateViewControllerWithIdentifier("SWRevealViewController") as! UIViewController
var initialViewController1 = storyboard1.instantiateViewControllerWithIdentifier("SWRevealViewController") as! UIViewController
self.window?.rootViewController = [initialViewController,initialViewController1]
self.window?.makeKeyAndVisible()
return true
}
You can not create segues between storyboards using Interface Builder.
It is only possible programmatically, example:
let storyBoardTwo = UIStoryboard(name: "storyBoardTwo", bundle: nil)
// Pick a view controller using it's identifier string set in Interface Builder.
let myVC = storyBoardTwo.instantiateViewControllerWithIdentifier("aViewController") as! UIViewController // Or use more specific (custom) type
// Push it to the navigation controller
self.navigationController.pushViewController(myVC, animated: true)
pushViewControllerwill simply put the myVC on top. This code is what a segue will end up doing. You can put this code anywhere in an existing ViewController, on a button tap IBAction or where ever needed.
If the pushed ViewController have any segues (from Storyboard or code) they will still work, as expected.
This of course works if you would want to programmatically load ViewController from one and the same Storyboard as well.
App delegate code:
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let myViewController = storyboard.instantiateViewControllerWithIdentifier("MyViewController") as UIViewController
if self.window != nil {
self.window!.rootViewController = myViewController
}
When I load app without this code everything is fine.
But if I run with this code view is loaded but navigation and tab bar are missing.
What am I missing here?
I am using storyboard.
This is code that work:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let mainRootController = storyboard.instantiateViewControllerWithIdentifier("MainViewController") as UIViewController
if self.window != nil {
let navigationController:UINavigationController = storyboard.instantiateInitialViewController() as UINavigationController
navigationController.viewControllers = [mainRootController]
self.window!.rootViewController = navigationController
}
return true
Before adding root view controller you must be allocate memory for navigation controller and then navigation controller take as a root view controller .
UINavigationController *navigationController=[[UINavigationController alloc] initWithRootViewController:yourViewController];
[[UINavigationBar appearance]setTintColor:[UIColor whiteColor]];
self.window.rootViewController = navigationController;