After searching a lot for a solution to my problem and didn't found a correct answer I post the problem: I have two viewControllers company and companyDetail when I execute
CompanyViewDetail *cDetail = [[CompanyViewDetail alloc] init];
[self presentViewController:cDetail animated:YES completion:nil];
it navigate to companyDetailViewController but the tabBar that I created in AppDelegate disappear, here is the code:
tabBars = [[UITabBarController alloc] init];
self.window.rootViewController = tabBars;
self.tabBars.view.autoresizingMask = (UIViewAutoresizingFlexibleHeight);
[self.window makeKeyAndVisible];
Related
I have 5 views in my app and I'm appDelegate by setting them in the following way:
UITabBarController *tabBarController = [[UITabBarController alloc] init];
tabBarController.viewControllers = [NSArray arrayWithObjects:navigationcontroller1, navigationcontroller7, navigationcontroller5, navigationcontroller4, navigationcontroller6, navigationcontroller2, nil];
self.window.rootViewController = tabBarController;
All of them come with a NavigationController and tabbarcontroller, But I needed to split the screen into two parts, in this case the screen would be divided would be navigationcontroller2, as you can see below:
VendaViewController *venda_viewcontroller = [[VendaViewController alloc] init];
UINavigationController *navigationcontroller2 = [[UINavigationController alloc] init];
[navigationcontroller2 pushViewController:venda_viewcontroller animated:YES];
Hence I tried the following way:
VendaViewController *venda_viewcontroller = [[VendaViewController alloc] init];
VendaDetailViewController *vendaDetail_viewcontroller = [[VendaDetailViewController alloc] init];
UISplitViewController *splitVC = [[UISplitViewController alloc] init];
[splitVC setViewControllers:[NSArray arrayWithObjects:venda_viewcontroller,vendaDetail_viewcontroller,nil]];
UINavigationController *navigationcontroller2 = [[UINavigationController alloc] init];
[navigationcontroller2 pushViewController:splitVC animated:YES];
But not work in this code, but in documentation of UISplitViewController is writing the following message:
"you must always install the view from a UISplitViewController object
as the root view of your application’s window. [...] Split view
controllers cannot be presented modally."
So...If I like to put a splitViewController in my view controller, I'll have to put splitViewController in all of my views controllers? Or have another solution to this?
You can use a UISplitViewController only as the root view controller of your app. In your case you can implement your custom container view controller with functionality similar to the split (two subview controller inside the main). Follow this link for details.
I'm opening a View from the navigationController, using the NVSlideMenuController. However, I haven't been able to show a Navigation Bar (which I definitely need).
I'm not familiar with NavigationControllers and after following a few tutorials, it still isn't clear enough to me how it works.
This is in the AppDelegate application didFinishLaunching:
IntroViewController* introVC = [[IntroViewController alloc] initWithNibName:#"IntroViewController" bundle:nil];
UIViewController *menuViewController = [[MenuViewController alloc] initWithStyle:UITableViewStyleGrouped]; // Your menu view controller
UIViewController *contentViewController = (UIViewController*)introVC; // The initial content view controller
menuViewController.navigationController.navigationBarHidden = false;
NVSlideMenuController *slideMenuController = [[NVSlideMenuController alloc] initWithMenuViewController:menuViewController andContentViewController:contentViewController];
self.window.rootViewController = slideMenuController;
return YES;
I tried adding the code to put the navbarhidden to false and it doesn't seem to work. Is there something else I missed?
Any help is very appreciated!
MyViewController *myViewController = [[MyViewController alloc] init];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:myViewController];
self.window.rootViewController = navigationController;
This will set the UINavigationController as your root view controller. If you MUST use NVSlideMenuController (which I have 0 experience with but really don't think it is necessary), then you can do the first two lines I gave you, and set the navigationController as the root for the NCSlideMenuController.
I would recommend Apple's documentation for UINavigationController, it is an extremely useful thing to know:
https://developer.apple.com/LIBRARY/IOS/documentation/UIKit/Reference/UINavigationController_Class/Reference/Reference.html
I'm trying to convert my app to universal for iPad support and whatever I do I can't get rid of the "Splitview controller is expected to have a view controller at index 0 before it's used!" error right after the app stars.
I'm using iOS6 as target, XCode 4.6.3. Tried all the things that I could find on this website and Google, didn't help me at all.
I want to add a TabBar controller as a Main one (left one in the Split Controller) and some other controllers as a detail one.
Here is my current code in AppDelegate.m:
tabController = [[UITabBarController alloc] init];
[tabController setViewControllers:[NSArray arrayWithObjects:navAddVC, nav, svcNav, stvcNav, nil]];
FirstDetailViewController *fdvc = [[FirstDetailViewController alloc];
initWithNibName:#"FirstDetailViewController" bundle:nil];
UINavigationController *fdvcNav = [[UINavigationController alloc] initWithRootViewController:fdvc];
viewControllers = [[NSArray alloc] initWithObjects:tabController, fdvcNav, nil];
UISplitViewController *splitvc = [[UISplitViewController alloc] initWithNibName:nil bundle:nil];
[[splitvc view] setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"splitViewControllerBG"]]];
[splitvc setViewControllers:viewControllers];
[splitvc setDelegate:fdvc];
[[self window] setRootViewController:splitvc];
[[self window] makeKeyAndVisible];
I'd appreciate any help, thanks.
Thanks to #Wain I solved it.
The thing was that by setting up a background image to my split vc I was loading its view.
So the solution is to set viewControllers array before the setting background color.
With the following code:
MyModalViewController *mMVC = [[MyModalViewController alloc] init];
UINavigationController *mMNavVC = [[UINavigationController alloc] initWithRootViewController:mMNavVC];
mMNavVC.navigationBar.barStyle = UIBarStyleBlackOpaque;
[[[appdelegate window] rootViewController] presentViewController:mMNavVC animated:YES completion:nil];
[mMVC release];
[mMNavVC release];
//(Yes we are not using ARC yet - kills me)
the view presents but it does not load before fully sliding up to the top. The Nav controller does load properly and you see it slide all the way up. However it's just a frame. In other words, you can see the presenting view controller as the nav controller slides up into place - THEN the mMVC loads.
Thanks for the help!
Your problem is that you are trying to create a UINavigationController while using it as the UINavigationController rootviewcontroller. Fixing this line :
UINavigationController *mMNavVC = [[UINavigationController alloc]
initWithRootViewController:mMNavVC];
to this :
MyModalViewController *mMVC = [[MyModalViewController alloc] init];
UINavigationController *mMNavVC = [[UINavigationController alloc] initWithRootViewController:mMVC];
will load the modal view controller before showing it.
MyModalViewController *mMVC = [[MyModalViewController alloc] init];
UINavigationController *mMNavVC = [[UINavigationController alloc] initWithRootViewController:mMNavVC];
mMNavVC.navigationBar.barStyle = UIBarStyleBlackOpaque;
[[[app window] rootViewController].navigationController pushViewController: mMNavVC animated:YES];
[mMVC release];
[mMNavVC release];
Try adding a line where you access that vc's view, i.e.
MyModalViewController *mMVC = [[MyModalViewController alloc] init];
UINavigationController *mMNavVC = [[UINavigationController alloc] initWithRootViewController:mMNavVC];
mMNavVC.navigationBar.barStyle = UIBarStyleBlackOpaque;
mMVC.view.backgroundColor = [UIColor whiteColor];
[[[appdelegate window] rootViewController] presentViewController:mMNavVC animated:YES completion:nil];
[mMVC release];
[mMNavVC release];
This is kind of a workaround for a problem that your viewController's view doesn't get loaded before navigationController's viewDidAppear method is called. If what I posted doesn't work, the problem is elsewhere.
Just try it and tell if it's ok now. :)
OK. Everybody gets a 1up for their answers because they were all helpful to me.
LucOlivierDB gets the check mark because that was just a stupid thing for me to not have seen.
!!NOTE:!! As it turns out my real problem as this line of code:
self.view.backgroundColor = [UIColor clearColor];
Someone thought it would be clever to have all the views inherit the background by making the view transparent. So when it drew the view it was drawing it transparent. Since the was not considered done drawing until the modal action was done you could see the view beneath it before that.
Thanks guys. You call made me think and learn!
I'm just trying a really simple example here as I start to delve into iOS development for ipad.
I'm creating a split view and immediately trying to present a modal form sheet.
Should be really basic.
With what I've tried I get what behaves like a page sheet instead.
In landscape I can see the split view beneath but I don't see the top of my modal view (the tool bar is hidden but is in view in portrait).
I would expect to just grey out the split view beneath a 540x620 modal dialog. I should see the split view beneath my modal in both portrait and landscape like all the nice form sheet dialogs in the Cheddar app for example.
I must be doing something wrong here but all the examples I've read and same within the Cheddar app are doing pretty much what I outline below.
In the app delegate:
MasterViewController *masterViewController = [[MasterViewController alloc] initWithNibName:#"MasterViewController" bundle:nil];
UINavigationController *masterNavigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController];
DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:#"DetailViewController" bundle:nil];
UINavigationController *detailNavigationController = [[UINavigationController alloc] initWithRootViewController:detailViewController];
masterViewController.detailViewController = detailViewController;
self.splitViewController = [[UISplitViewController alloc] init];
self.splitViewController.delegate = detailViewController;
self.splitViewController.viewControllers = #[masterNavigationController, detailNavigationController];
self.window.rootViewController = self.splitViewController;
[self.window addSubview:self.splitViewController.view];
ModalViewController *modalView = [[ModalViewController alloc] initWithNibName:#"ModalViewController" bundle:nil];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:modalView];
navController.modalPresentationStyle = UIModalPresentationFormSheet;
[self.splitViewController presentViewController:navController animated:NO completion:nil];
The app delegate is way too soon. You have no interface yet, so you can't coherently do any presenting of any view controller.
So, first thing, move all your modalView code to the viewDidAppear: of your detailViewController.