I have an app with a UITabBar and a NavigationController. When I use pushViewController the new ViewController appears with the NavigationController and the back button, but the UITabBarController disappears. I know there are lots of questions here about the same, but any of them have solved my question, maybe because I dont understand the answers given.
Any suggestion?
ActivityViewController *activityController = [[ActivityViewController alloc] initWithNibName:#"ActivityViewController" bundle:nil];
[self.navigationController pushViewController:activityController animated:NO];
That's probably because Your rootViewController (for your main UIWindow) is set to a Navigationcontroller instead of your TabBar.
If you don't want the Tabbar to go away just set it as your root view controller
Do the following in appDidFinishLaunching in your AppDelegate
LoginViewController *loginViewController = [[FirstViewController alloc] init];
UINavigationController *loginNavigationController = [[UINavigationController alloc] loginViewController];
[firstViewController release];
self.window.rootViewController = loginNavigationController;
Then in your Login Page:
- (void)loginSuccessfull
{
FirstViewController *firstViewController = [[FirstViewController alloc] init];
UINavigationController *firstNavigationController = [[UINavigationController alloc] initWithViewController:firstViewController];
[firstViewController release];
SecondViewController *secondViewController = [[SecondViewController alloc] init];
UINavigationController *secondNavigationController = [[UINavigationController alloc] initWithViewController:secondViewController];
[secondViewController release];
UITabBarController *tabBarController = [[UITabBarController alloc] init];
[tabBarController setViewControllers:
[NSArray arrayWithObjects:firstNavigationController, secondNavigationController, nil]];
[firstNavigationController release];
[secondNavigationController release];
[self.navigationController pushViewController:tabBarController];
[tabBarController release];
}
If you still need the navigation functionality just wrap your viewControllers inside a UINavigationController, and add the serounding navigationController to the tabBar, instead of the UIViewcontroller
Related
I've been looking at programatically adding a tab bar to my view controller because having a scroll view I can't place it on without it being in the middle of my view. I'm abit confused about how to add it. Does it need to be initiated in my ViewDidLoad method or my AppDelegate?
If I have:
UITabBarController *tabBar = [[UITabBarController alloc] init];
[self.view addSubview:tabBar.view];
[tabBar release];
How can I allocate it to the bottom of my scrollview?
Thanks!
Now in my appDelegate class :
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.viewController = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
UITabBarController *tabBarController = [[UITabBarController alloc] init];
ViewController* vc = [[ViewController alloc] init];
NSArray* controllers = [NSArray arrayWithObjects:vc, tabBarController, nil];
tabBarController.viewControllers = controllers;
[_window addSubview:tabBarController.view];
self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
return YES;
}
It's crashing and not sure if it's a release I'm missing.
Edit:
For anyone else wondering this in Appdelegate.m:
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = #[viewController1, viewController2, viewController3, viewController4];
Take a look at this Documentation given by Apple: ViewControllers.
Sample Code :
- (void)applicationDidFinishLaunching:(UIApplication *)application {
UITabBarController *tabBarController = [[UITabBarController alloc] init];
FirstViewController* vc1 = [[FirstViewController alloc] init];
SecondViewController* vc2 = [[SecondViewController alloc] init];
NSArray* controllers = [NSArray arrayWithObjects:vc1, vc2, nil];
tabBarController.viewControllers = controllers;
// Add the tab bar controller's current view as a subview of the window
[window addSubview:tabBarController.view];
}
I did it this way. I copied this from my App Delegate and it works fine. Basically you add the view controllers to the tab bar then add the tab bar to the window's subview.
Instantiate the instance
iVacationTabBar = [[UITabBarController alloc] init];
However you create the views/view controllers:
UINavigationController *rvc_tools = [[UINavigationController alloc] initWithRootViewController: vc_tools];
UINavigationController *rvc_settings = [[UINavigationController alloc] initWithRootViewController: vc_settings];
UINavigationController *rvc_about = [[UINavigationController alloc] initWithRootViewController: vc_about];
UINavigationController *rvc_currentpage = [[UINavigationController alloc] initWithRootViewController: vc_currentpage];
UINavigationController *rvc_backup = [[UINavigationController alloc] initWithRootViewController:vc_backup];
Add the controllers to the array:
NSArray* controllers = [NSArray arrayWithObjects: rvc_currentpage, rvc_tools,rvc_settings, rvc_backup, rvc_about, nil];
Set the array of view controllers to your tab bar:
[iVacationTabBar setViewControllers: controllers animated:NO];
Add the tab bar to the window's subview.
[_window addSubview:iVacationTabBar.view];
You can not add a UITabbarController on a UIViewController. Instead, on a ViewController you have to show the TabbarController, create a TabbarController, set ViewControllers for it, and add it to a Window.
Titles are not showing after the home screen. I have put UITabBarController after the first screen. First screen hasn't got a UITabBarController. I am not sure the way I have implemented the tab.
I have set titles in every view controller by self.title = #"title". Titles are showing in tab items properly.
AppDelegate.m:
UIViewController *loginView= [[[LoginViewController alloc] initWithNibName:#"LoginViewController" bundle:nil] autorelease];
UINavigationController *loginViewNavController = [[UINavigationController alloc] initWithRootViewController:loginView ];
self.navigationController = loginViewNavController;
self.window.rootViewController = self.navigationController;
[self.window makeKeyAndVisible];
LoginViewController.m:
-(IBAction)navigateMainMenu:(id)sender{
tabBarController = [[UITabBarController alloc] init];
MyAccountsViewController *vc1 = [[MyAccountsViewController alloc] initWithNibName:#"MyAccountsViewController" bundle:nil];
DepositsViewController *vc2 = [[DepositsViewController alloc] initWithNibName:#"DepositsViewController" bundle:nil];
MoreViewController *vc3 = [[MoreViewController alloc] initWithNibName:#"MoreViewController" bundle:nil];
PayTransViewController *vc4 = [[PayTransViewController alloc]init];
NSArray* controllers = [NSArray arrayWithObjects:vc1,vc4, vc2, vc3, nil];
tabBarController.viewControllers = controllers;
[self.navigationController pushViewController:tabBarController animated:YES];
[mainMenuViewController release];
If you set self.title = #"Title". This title will set in navController title. But In your TabBarController, every items are ViewController. Not an navigationController.
Issue: What you release in this line
[mainMenuViewController release];
mostly display title with bellow trickes :-
1. Self.title=#"Your Titile";
2. self.navigationItem.title=#"your Title";
3. when you using UItabBarController you can set Particular Viewcontroller as par your code Title like:-
vc1.title=#"your Title";
vc2.title=#"your Title";
vc3.title=#"your Title";
vc4.title=#"your Title";
I suggest you not you use tabbarcontroller inside a navigationcontroller. If you are using tabbarcontroller it should be the rootViewcontroller.
I already have the basic code for a utility application, but when the application flips to the second view I want to add a tabbarItem to the bottom of the flipped view only, if the view is flipped back to the original view the tab bar shouldn't show up. How can I add this feature, I'm using simulator 4.1 by the way, thanks!
Here's the code that shows the flipped side when the button is clicked, I want it to flip to a tab bar controller instead.
- (IBAction)showInfo:(id)sender {
FlipsideViewController *controller = [[FlipsideViewController alloc] initWithNibName:#"FlipsideView" bundle:nil];
controller.delegate = self;
controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:controller animated:YES];
[controller release];
}
You can hide the UITabbar by using the following code
[yourTabBar setHidden :YES];
and show it using the following code
[yourTabBar setHidden:NO];
By Show/Setup do you mean adding the tabbar controller on the view??Well i am assuming that..You can Add the tabbar controller as a rootviewcontroller of your window i.e. your AppDelegate.Here is the sample Code:
UIViewController *viewController1 = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
UINavigationController *navCon1=[[UINavigationController alloc] initWithRootViewController:viewController1];
UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
UINavigationController *navCon2=[[UINavigationController alloc] initWithRootViewController:viewController2];
UIViewController *viewController3=[[ThirdViewController alloc] initWithNibName:#"ThirdViewController" bundle:nil];
UINavigationController *navCon3=[[UINavigationController alloc] initWithRootViewController:viewController3];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navCon1, navCon2,navCon3, nil];
self.window.rootViewController = self.tabBarController;
You're switching between two UIViewControllers, right? Let the second view controller, the one that appears after flipping, be a UITabBarViewController.
I have a tabBar app with two tabs. Each tab has its own navigationController implemented this way:
FirstViewController *firstController = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
UINavigationController *firstNavController = [[UINavigationController alloc] initWithRootViewController:firstController];
SecondViewController *secondController = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
UINavigationController *secondNavController = [[UINavigationController alloc] initWithRootViewController:secondController];
tabBar.viewControllers = [NSArray arrayWithObjects:firstNavController, secondNavController, nil];
When I want to push a view into one tab I use this:
[self.navigationController pushViewController:activityController animated:YES];
And when I am on a pushed view and I want to pop the view I use:
[self.navigationController popViewControllerAnimated:YES];
The push animation works great but in the pop animation only the top bar (the NavigationController) gets animated and the view disappears without the animation. What can be wrong?
Try using [self.navigationController popToRootViewControllerAnimated:YES];
Instead of [self.navigationController popViewControllerAnimated:YES];
and tell me if this works. Remember for netsted navigation controllers.
I have a window based app. I added two viewcontrollers and one Tabbarcontroller to that. Now I want to navigate each viewcontroller to next view. I tried but can't find the solution. Can anyone please help me?
When you add the tab bar on window, add like this-
NSMutableArray * viewControllers = [[NSMutableArray alloc]init];
FirstViewController * firstViewController = [[FirstViewController alloc]initWithNibName:#"FirstViewController" bundle:nil];
UINavigationController * nvc = [[UINavigationController alloc] initWithRootViewController:firstViewController];
[firstViewController release];
[viewControllers addObject:nvc];
[nvc release];
SecondViewController * secondViewController = [[SecondViewController alloc]initWithNibName:#"SecondViewController" bundle:nil];
nvc = [[UINavigationController alloc] initWithRootViewController:secondViewController];
[secondViewController release];
[viewControllers addObject:nvc];
[nvc release];
UITabBarController * tabBarController = [[UITabBarController alloc] init];
tabBarController.viewControllers = viewControllers;
[window addSubview:tabBarController.view];
EDIT -
Whenever you want to navigate in any one of the controller. All you need is to call
[self.navigationController pushViewController:anotherViewController animated:YES];
And you will get exactly what you want. :)
UINavigationController *urNavController = [[UINavigationController alloc] initWithRootViewController:rootController];
If you want to show this on the window
[window addSubview:urNavController.view];
use like this
secondViewController *obj=[[[secondViewController alloc] initWithNibName:#"secondViewController" bundle:nil] autorelease];
UINavigationController *navBar=[[UINavigationController alloc] initWithRootViewController:obj];
[self.navigationController pushViewController:navBar animated:YES];
[navBar release];