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
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 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 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?
i'm using this code for a tabbar, but the tabbar is not showing
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UITabBarController *tabController = [[UITabBarController alloc] init];
UIViewController *viewController1 = [[UIViewController alloc] init];
UIViewController *viewController2 = [[UIViewController alloc] init];
UIViewController *viewController3 = [[UIViewController alloc] init];
UIViewController *viewController4 = [[UIViewController alloc] init];
tabController.viewControllers = [NSArray arrayWithObjects:viewController1,
viewController2,
viewController3,
viewController4, nil];
self.window.rootViewController = tabController;
UIViewController *rootController =
[[xTableViewController alloc]
initWithNibName:#"xTableViewController" bundle:nil];
navigationController = [[UINavigationController alloc]
initWithRootViewController:rootController];
self.window = [[UIWindow alloc]
initWithFrame:[[UIScreen mainScreen] bounds]];
[self.window addSubview:navigationController.view];
[self.window makeKeyAndVisible];
return YES;
}
When i remove this line:
self.window = [[UIWindow alloc]
initWithFrame:[[UIScreen mainScreen] bounds]];
The tabbar show's up but i cant 'touch' my screen (i cant touch my screen but the tabbar is 'touchable' because nothing is working, does anyone know how to display the tabbar on a normal way?
It seems like you are initializing the window twice. First with the UITabbarContorller and then with UINavigationController. Try
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UITabBarController *tabController = [[UITabBarController alloc] init];
UIViewController *viewController1 = [[UIViewController alloc] init];
UIViewController *viewController2 = [[UIViewController alloc] init];
UIViewController *viewController3 = [[UIViewController alloc] init];
UIViewController *viewController4 = [[UIViewController alloc] init];
tabController.viewControllers = [NSArray arrayWithObjects:viewController1,
viewController2,
viewController3,
viewController4, nil];
self.window.rootViewController = tabController;
[self.window makeKeyAndVisible];
return YES;
}
Can someone point me in the right direction with how to set up a UINavigationController inside of a UITabBarController? I have a feeling I'm using initWithRootViewController wrong.
ViewController1 *viewController1 = [[[ViewController1 alloc] initWithNibName:#"ViewController1" bundle:nil] autorelease];
self.navController = [[[UINavigationController alloc] initWithRootViewController:viewController1] autorelease];
ViewController2 *viewController2 = [[[ViewController2 alloc] initWithNibName:#"ViewController2" bundle:nil] autorelease];
ViewController3 *viewController3 = [[[ViewController3 alloc] initWithNibName:#"ViewController3" bundle:nil] autorelease];
ViewController4 *viewController4 = [[[ViewController4 alloc] initWithNibName:#"ViewController4" bundle:nil] autorelease];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
_tabBarController.viewControllers = [NSArray arrayWithObjects:navController, viewController2, viewController3, viewController4, nil];
self.tabBarController.delegate = self;
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
Thanks for any tips guys.
In the AppDelegate, you put this:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
UIViewController *viewController1 = [[[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil] autorelease];
UINavigationController *navC1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
UIViewController *viewController2 = [[[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil] autorelease];
UINavigationController *navC2 = [[UINavigationController alloc] initWithRootViewController:viewController2];
UIViewController *viewController3 = [[[FirstViewController alloc] initWithNibName:#"ThirdViewController" bundle:nil] autorelease];
UINavigationController *navC3 = [[UINavigationController alloc] initWithRootViewController:viewController3];
UIViewController *viewController4 = [[[SecondViewController alloc] initWithNibName:#"ForthViewController" bundle:nil] autorelease];
UINavigationController *navC4 = [[UINavigationController alloc] initWithRootViewController:viewController4];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navC1, navC2, navC4, navC4, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
Hope that help (Sorry for the bad english :-) );