I have a custom UITabBarController. On it I have added 3 view controllers adding a navigationController to each one first. It looks like this
ยท customTabBarController.m viewDidLoad:
- (void)viewDidLoad
{
[super viewDidLoad];
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];
self.viewControllers = [NSArray arrayWithObjects:firstNavController, secondNavController, nil];
[self addLeftButtonImage];
[self addRightButtonImage];
self.selectedIndex = 1;
}
Now, when I am on a view controller and I want to pushViewController, how do I have to call it?
Related
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
FirstViewController *fvc = [[FirstViewController alloc] init];
SecondtViewController *svc = [[FirstViewController alloc] init];
//Create UITabBarController
UITabBarController *theTabBarController = [[UITabBarController alloc] init];
NSArray *viewControllers = [NSSArry arrayWithObjects: fvc, svc, nil];
[theTabBarController setViewControllers:viewControllers];
// Create UINavigationController
UINavigationController *theNavigationController = [[UINavigationController
alloc]initWithRootViewController:theTabBarController];
[[self window] setRootViewController:theNavigationController];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
Then in the First View Controller i do a push to a second view
- (IBAction)Page2:(id)sender {
SBHomePageDetailViewController *detailPageViewController = [[SBHomePageDetailViewController alloc] init];
// Pushing to the stack
[[self navigationController] pushViewController:detailPageViewController animated:YES];
}
Now my UI shows the second view, however, the UITabBarController is missing. When i navigate back the tab bar view is back. How do I keep the tab bar controller visible in all ui screens?
Into AppDelegate.h file make property of theTabBarController:
#property (nonatomic, strong) UITabBarController *theTabBarController;
And here how I changed your didFinishLaunchingWithOptions method:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
FirstViewController *fvc = [[FirstViewController alloc] init];
SecondtViewController *svc = [[SecondtViewController alloc] init];
// Create UINavigationController
UINavigationController *theNavigationController = [[UINavigationController
alloc]initWithRootViewController:fvc];
//Create UITabBarController
self.theTabBarController = [[UITabBarController alloc] init];
NSArray *viewControllers = [NSArray arrayWithObjects: theNavigationController, svc, nil];
[self.theTabBarController setViewControllers:viewControllers];
[[self window] setRootViewController:theNavigationController];
[[self window] addSubview:self.theTabBarController.view];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
The problem in the code is that it tries to initialize a UITabBarController as the rootViewController of a UINavigationController in this line:
// Create UINavigationController
UINavigationController *theNavigationController = [[UINavigationController alloc]initWithRootViewController:theTabBarController];
From the docs:
rootViewController:
The view controller that resides at the bottom of the navigation stack. This object cannot be an instance of the UITabBarController class.
Try removing that line and, per #rmaddy's suggestion, put each View Controller in a Navigation Controller. Then set those Navigation Controllers as the Tab Bar Controller's VCs and set the App's RootViewController to the Tab Bar Controller:
FirstViewController *fvc = [[FirstViewController alloc] init];
SecondtViewController *svc = [[SecondtViewController alloc] init];
// Create the first UINavigationController
UINavigationController *firstNavigationController = [[UINavigationController
alloc]initWithRootViewController:fvc];
// Create the second UINavigationController
UINavigationController *secondNavigationController = [[UINavigationController
alloc]initWithRootViewController:svc];
//Create UITabBarController
theTabBarController = [[UITabBarController alloc] init];
NSArray *viewControllers = [NSArray arrayWithObjects: firstNavigationController, secondNavigationController, nil];
[theTabBarController setViewControllers:viewControllers];
[[self window] setRootViewController: theTabBarController];
I have a x-code project made by tab bar. On AppDelegate.m I create three buttons for each view:
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
UIViewController *viewController1 = [[[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil] autorelease];
UIViewController *viewController2 = [[[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil] autorelease];
UIViewController *viewController3=[[[ThirdViewController alloc]initWithNibName:#"ThirdViewController" bundle:nil]autorelease];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = #[viewController1, viewController2,viewController3];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
When I am on the first view I want to create a button that calls another view:
-(IBAction)btnPush{
[[self navigationController] pushViewController:newView animated:YES];
}
but when the new view comes up it covers the tab bar on the botton. How can I do to fix the problem?
Instead of Adding UIViewController in UITabBarController add UINavigationController as following
UIViewController *viewController1 = [[[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil] autorelease];
UIViewController *viewController2 = [[[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil] autorelease];
UIViewController *viewController3=[[[ThirdViewController alloc]initWithNibName:#"ThirdViewController" bundle:nil]autorelease];
Now add your ViewController to NavigationController
UINavigationController *navController1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
UINavigationController *navController2 = [[UINavigationController alloc] initWithRootViewController:viewController2];
UINavigationController *navController3 = [[UINavigationController alloc] initWithRootViewController:viewController3];
self.tabBarController.viewControllers = #[navController1, navController2,navController3];
It will add Navigation Controller in TabBarController
I am trying to include a navigation controller within the third tab of my tabbarcontroller. I have had some feedback but am only able to get about this far. The code below doesn't produce any errors, but does not seem to work as the app just quits out. Does anyone have any input on what I might be doing wrong?
UIViewController *viewController1 = [[FirstViewController alloc]
initWithNibName:#"PDCFirstViewController" bundle:nil];
UIViewController *viewController2 = [[SecondViewController alloc]
initWithNibName:#"SecondViewController" bundle:nil];
viewController3 = [[UIViewController alloc] initWithNibName:#"ThirdViewController"
bundle:nil];
UINavigationController *navigationcontroller = [[UINavigationController alloc]
initWithRootViewController:viewController3];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray
arrayWithObjects:viewController1,viewController2,navigationcontroller, nil];
Thank you all!
int main(int argc, char *argv[])
{
#autoreleasepool {
return UIApplicationMain(argc, argv, nil, NSStringFromClass([PDCAppDelegate class]));
}
}
Make sure with all nib names you are using and also with class name, i.e.
if you class name of UIViewController is FirstViewController, nib name should be same. And you have used "PDCFirstViewController" for nib name.
Same with ThirdViewController & SecondViewController.
Try below code...
FirstViewController *viewController1 = [[FirstViewController alloc]
initWithNibName:#"FirstViewController" bundle:nil];
SecondViewController *viewController2 = [[SecondViewController alloc]
initWithNibName:#"SecondViewController" bundle:nil];
ThirdViewController *viewController3 = [[ThirdViewController alloc] initWithNibName:#"ThirdViewController"
bundle:nil];
UINavigationController *navigationcontroller = [[UINavigationController alloc]
initWithRootViewController:viewController3];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray
arrayWithObjects:viewController1,viewController2,navigationcontroller, nil];
Here is the solution
UIViewController *courseView = [[[CoursesView alloc] initWithNibName:#"CoursesView" bundle:nil] autorelease];
UIViewController *subjectViewController = [[[SubjectViewController alloc] initWithNibName:#"SubjectViewController" bundle:nil] autorelease];
UIViewController *videoViewController = [[[VideoViewController alloc] initWithNibName:#"VideoViewController" bundle:nil] autorelease];
UIViewController *quizViewController = [[[QuizViewController alloc] initWithNibName:#"QuizViewController" bundle:nil] autorelease];
UIViewController *proifileViewController = [[[Profile2ViewController alloc] initWithNibName:#"Profile2ViewController" bundle:nil] autorelease];
UINavigationController *coursNav = [[UINavigationController alloc] initWithRootViewController:courseView];
UINavigationController *subjectNav = [[UINavigationController alloc] initWithRootViewController:subjectViewController];
UINavigationController *videoNav = [[UINavigationController alloc] initWithRootViewController:videoViewController];
UINavigationController *quizNav = [[UINavigationController alloc] initWithRootViewController:quizViewController];
UINavigationController *profileNav = [[UINavigationController alloc] initWithRootViewController:proifileViewController];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = #[coursNav, subjectNav,videoNav,quizNav,profileNav];
self.tabBarController.navigationController.navigationBarHidden=YES;
self.tabBarController.delegate=self;
[self.window addSubview:self.tabBarController.view];
[self.window makeKeyAndVisible];
it works for me
I'm trying to put an UITabBarController inside an UINavigationController (Programmatically), this is my code:
UITabBarController *tabBarController = [[UITabBarController alloc] init];
HomeViewPhone *home = [[HomeViewPhone alloc] initWithStyle:UITableViewStylePlain];
home.title = NSLocalizedString(#"HOME",nil);
EventiPhone *eventi = [[EventiPhone alloc] initWithStyle:UITableViewStylePlain];
eventi.title = NSLocalizedString(#"EXPLORE", nil);
FavoritiPhone *favoriti = [[FavoritiPhone alloc] initWithStyle:UITableViewStylePlain];
favoriti.title = NSLocalizedString(#"FAVORITES",nil);
ProfiloPhone *profilo = [[ProfiloPhone alloc] initWithStyle:UITableViewStylePlain];
profilo.title = NSLocalizedString(#"PROFILE", nil);
[tabBarController setViewControllers:[NSArray arrayWithObjects:home,eventi,favoriti,profilo, nil]];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:tabBarController];
[self.window addSubview:navController.view];
but when I tap on one TabBarItem the app crash with this error
-[__NSCFString _tabBarItemClicked:]: unrecognized selector sent to instance 0x7934db0
Any ideas?
Use
self.window.rootViewController = tabBarController;
Instead of
[self.window addSubview:navController.view];
Then add navBarControllers to any of the tabs that need them.
With ARC : solved with #property too !
More complicated app I have : AppDelegate -> NavigationController -> TableViewController -> TabBarController
First in AppDelegate, build the TableViewCtrl and insert in the NavCtrl
TableViewController *myTVC = [[TableViewController alloc] initWithStyle:UITableViewStylePlain];
UINavigationController *myNC = [[UINavigationController alloc] initWithRootViewController:myTVC];
[self.window setRootViewController:myNC];
Second, in TableViewCtrl method didSelectRow (for my use), pushViewController to the TabBarCtrl
_myTBC = [[TabBarController alloc] init];
[[self navigationController] pushViewController:_myTBC animated:YES];
Last, property the TabBarController in .h : that's the key !
#property (retain, nonatomic) UITabBarController * TabBar;
and build the .m, do your own...
ViewController1 *VC1 = [[ViewController1 alloc] init];
ViewController2 *VC2 = [[ViewController2 alloc] init];
_TabBar = [[UITabBarController alloc] init];
NSArray *table = [NSArray arrayWithObjects:VC1,VC2,nil];
[_TabBar setViewControllers:table animated:YES];
[[self view] addSubview:[_TabBar view]];
That's work nice! Doesn't need modal or other stuff...
![I am creating a tab bar controller programmatically:
tabBarController = [[UITabBarController alloc] init];
FirstViewController* vc1 = [[FirstViewController alloc] init];
SecondViewController* vc2 = [[SecondViewController alloc] init];
vc1.title = #"Dallas";//[[NSUserDefaults standardUserDefaults] objectForKey:#"Citynamefrmhome"];
vc1.tabBarItem.image = [UIImage imageNamed:#"Dealss.png"];
vc2.title = #"My Vouchers";
vc2.tabBarItem.image = [UIImage imageNamed:#"nav_voucher_S.png"];
NSArray* controllers = [NSArray arrayWithObjects:vc1,vc2, nil];
tabBarController.viewControllers = controllers;
[self.view addSubview:tabBarController.view];
[vc1 release];
[vc2 release];
if I load it when the app starts, it looks great (look at figure 1):
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
autoMagically = [[AutoMagically alloc] initWithNibName:nil bundle:nil];
//self.window.rootViewController = self.dummyView;
[self.window addSubview:autoMagically.view];
[self.window makeKeyAndVisible];
return YES;
}
if I load it when a button is clicked, the way i wanna do it, it looks like figure 2. See how the titles arent showing and the buttons seem to be getting cutoff:
- (void)LoadView
{
AutoMagically *autoMagic = [[AutoMagically alloc]
initWithNibName:nil bundle:nil];
self.autoMagically = autoMagic;
[self.view insertSubview:autoMagic.view atIndex:0];
[autoMagic release];
}
Does anyone know why this is behaving like this?]1
You can call
[[[self.parentViewController.tabBarController.tabBar.items objectAtIndex:/*a number based on what tab it was ex: 2*/]setTitle:#"string"];
in your -viewDidLoad or -awakeFromNib methods. It might be better to use the latter instead of the former.