I have tried to add a navigation controller to a tab bar controller but the tab appear black.
My code:
AppDelegate.m
#import "SettingsNavigationControllerViewController.h"
#import "SettingsViewController.h"
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
UIViewController *viewController1, *viewController2, *viewController3;
SettingsNavigationControllerViewController *viewController4;
UINavigationController *navigationController = [UINavigationController alloc];
viewController1 = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
viewController2 = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
viewController3 = [[ShareViewController alloc] initWithNibName:#"ShareViewController" bundle:nil];
SettingsViewController *settingViewController = [[SettingsViewController alloc] initWithNibName:#"SettingsViewController" bundle:nil];
viewController4 = [[SettingsNavigationControllerViewController alloc] initWithRootViewController:settingViewController];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = #[viewController1, viewController2, viewController3, navigationController];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
thank you in advance
This is because you added a navigationcontroller with no RootViewController and even doesnt initialized. Thats why the view appears as black. May be you mean to add viewController4 instead of navigationController . So change your code as below
self.tabBarController.viewControllers = #[viewController1, viewController2, viewController3, viewController4];
You need to first create the navigation controllers with rootviewcontrollers
viewController1 = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
UINavigationController *navigationController1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
viewController2 = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
UINavigationController *navigationController2 = [[UINavigationController alloc] initWithRootViewController:viewController2];
Then instantiate the Tab Bar controller like this
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navigationController1, navigationController2, nil];
Create Navigation Controllers first.
UINavigationController *nav1 = [[UINavigationController alloc] init];
UIViewController *viewController1 = [[[FirstSteps alloc] initWithNibName:#"FirstView" bundle:nil] autorelease];
nav1.viewControllers = [NSArray arrayWithObjects:viewController1, nil];
UINavigationController *nav2 = [[UINavigationController alloc] init];
UIViewController *viewController2 = [[[Profiles alloc] initWithNibName:#"SecondView" bundle:nil] autorelease];
nav2.viewControllers = [NSArray arrayWithObjects:viewController2, nil];
Then initialize your tabbar controller like this.
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:nav1,nav2 ,nil];
self.window.rootViewController=self.tabBarController;
Hope this helps you.
Hey mate please visit the below link for tab bar example.
I think this is good and nice example which would be helpful to you.
https://github.com/alikaragoz/AKTabBarController
You only have to set your controllers name in appDelegate.m file
Related
I am unable to get the navigation bar to show the title that I specify. I have tried to change the title in the AppDelegate.m, as well as in the viewDidLoad of my first tab view. I suspect the title is being hidden, but I am unable fix it. Please provide any insight you may have.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
navigationController = [[UINavigationController alloc] initWithNavigationBarClass:[CRGradientNavigationBar class] toolbarClass:nil];
UIColor *firstColor = [UIColor colorWithRed:155.0f/255.0f green:41.0f/255.0f blue:104.0f/255.0f alpha:1.0f];
UIColor *secondColor = [UIColor colorWithRed:215.0f/255.0f green:90.0f/255.0f blue:18.0f/255.0f alpha:1.0f];
NSArray *colors = [NSArray arrayWithObjects:firstColor, secondColor, nil];
[[CRGradientNavigationBar appearance] setBarTintGradientColors:colors];
self.navigationController.title = #"This title is not showing";
[[navigationController navigationBar] setTranslucent:NO];
//create the view controller for the first tab
self.firstViewController = [[FirstViewController alloc] initWithNibName:nil
bundle:NULL];
//create the view controller for the second tab
self.secondViewController = [[SecondViewController alloc] initWithNibName:nil
bundle:NULL];
//create the view controller for the third tab
self.thirdViewController = [[ThirdViewController alloc] initWithNibName:nil
bundle:NULL];
//create the view controller for the fourth tab
self.fourthViewController = [[FourthViewController alloc] initWithNibName:nil
bundle:NULL];
//create an array of all view controllers that will represent the tab at the bottom
NSArray *myViewControllers = [[NSArray alloc] initWithObjects:
self.firstViewController,
self.secondViewController, self.thirdViewController, self.fourthViewController, nil];
//initialize the tab bar controller
self.tabBarController = [[MainUITabBarController alloc] init];
//set the view controllers for the tab bar controller
[self.tabBarController setViewControllers:myViewControllers];
[navigationController setViewControllers:#[self.tabBarController]];
[self.window setRootViewController:navigationController];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
The relationship of your view controllers isn't right.
The root view controller of your app should be the TabBarController.
Each of the items should have it's own Navigation Controller.
The title of each ViewController can be set in viewDidLoad() with self.title = "....
I've been able to set titles in the delegate as follows:
1.) Create view controllers
2.) Set those titles
3.) Then create UINavigationControllers and assign view controllers there
self.firstViewController = [[FirstViewController alloc] initWithNibName:nil bundle:nil];
self.secondViewController = [[SecondViewController alloc] initWithNibName:nil bundle:nil];
self.thirdViewController = [[ThirdViewController alloc] initWithNibName:nil bundle:nil];
self.fourthViewController = [[FourthViewController alloc] initWithNibName:nil bundle:nil];
[self.firstViewController setTitle:#"First"];
[self.secondViewController setTitle:#"Second"];
[self.thirdViewController setTitle:#"Third"];
[self.fourthViewController setTitle:#"Fourth"];
UINavigationController *controller1 = [[UINavigationController alloc] initWithRootViewController:self.firstViewController];
UINavigationController *controller2 = [[UINavigationController alloc] initWithRootViewController:self.secondViewController];
UINavigationController *controller3 = [[UINavigationController alloc] initWithRootViewController:self.thirdViewController];
UINavigationController *controller4 = [[UINavigationController alloc] initWithRootViewController:self.fourthViewController];
NSArray *viewControllers = [NSArray arrayWithObjects:controller1, controller2, controller3, controller4, nil];
Following is my code and it is showing tab bar only on given 2 tab bar items but it is not showing tab bar in other views.
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.startQuizViewController = [[StartQuizViewController alloc] initWithNibName:nil bundle:nil];
self.scoreViewController = [[ScoreViewController alloc] initWithNibName:nil bundle:nil];
self.startQuizViewController.title = #"QUIZ";
self.scoreViewController.title = #"SCORES";
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:self.startQuizViewController,self.scoreViewController,nil];
_navigationController=[[UINavigationController alloc]initWithRootViewController:self.tabBarController];
[self.window addSubview:self.navigationController.view];
self.window.rootViewController = self.navigationController;
[self.window makeKeyAndVisible];
return YES;
code in written in didFinishLaunchingWithOptions in AppDelegate.m.
change this part:
_navigationController=[[UINavigationController alloc]initWithRootViewController:self.tabBarController];
[self.window addSubview:self.navigationController.view];
self.window.rootViewController = self.navigationController;
to this:
self.window.rootViewController = self.tabBarController;
you cannot have tabbarcontroller inside a navigation controller. so just remove navigation controller and set tab bar controller as root view controller
edit:
self.startQuizViewController = [[StartQuizViewController alloc] initWithNibName:nil bundle:nil];
self.scoreViewController = [[ScoreViewController alloc] initWithNibName:nil bundle:nil];
self.startQuizViewController.title = #"QUIZ";
self.scoreViewController.title = #"SCORES";
self.tabBarController = [[UITabBarController alloc] init];
UINavigationController * nav1 = [[UINavigationController alloc] initWithRootViewController:self.startQuizViewController];
UINavigationController * nav2 = [[UINavigationController alloc] initWithRootViewController:self.scoreViewController];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:nav1, nav2, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
that's it. you can now push view controller inside those controller and can have the tab bar always there.
Use this
UIViewController *viewController1, *viewController2;
viewController1 = [[UIViewController alloc] initWithNibName:#"FirstViewController" bundle:nil] ;
UINavigationController *navigationcontroller = [[UINavigationController alloc] initWithRootViewController:viewController1] ;
viewController2 = [[UIViewController alloc] initWithNibName:#"SecondViewController" bundle:nil] ;
UINavigationController *navigationcontroller2 = [[UINavigationController alloc] initWithRootViewController:viewController2] ;
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navigationcontroller, navigationcontroller2, nil];
and finally
self.window.rootViewController = self.tabBarController;
This way you have seperate navigation controllers for both tabbar controller.
I've been following lot's of different tutorials on how to add a UITabBarController programmatically. This would be easy to achieve using storyboard, but since I'm trying to learn how to do things programmatically I can't do that.
At the moment I've got this code in the didFinishLaunchingWithOptions.
tabBarController = [[UITabBarController alloc] init];
NSMutableArray *tabs = [[NSMutableArray alloc] init];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:[[MenuViewController alloc] init]];
[tabBarController setViewControllers:tabs];
[tabs addObject:navController];
[self.window addSubview:tabBarController.view];
Edited code:
tabBarController = [[UITabBarController alloc] init];
MenuViewController *firstTab = [[MenuViewController alloc] initWithNibName:#"MenuViewController" bundle:nil];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:firstTab];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = #[navController];
[self.window setRootViewController:tabBarController];
[self.window makeKeyAndVisible];
This does not do anything to my rootViewController called MenuViewController. How can I achieve this?
Thie bellow code for 5 tab UITabbarcontroller try with this bellow code:-
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
anasayfaViewController * firstTab= [[anasayfaViewController alloc] initWithNibName:#"anasayfaViewController" bundle:nil];
UINavigationController *navigationController1 = [[UINavigationController alloc] initWithRootViewController:firstTab];
SehirRehberiViewController *sehirRehberi = [[SehirRehberiViewController alloc] initWithNibName:#"SehirRehberiViewController" bundle:nil];
UINavigationController *navigationController2 = [[UINavigationController alloc] initWithRootViewController:sehirRehberi];
duyuruViewController *duyuru = [[duyuruViewController alloc] initWithNibName:#"duyuruViewController" bundle:nil];
UINavigationController *navigationController3 = [[UINavigationController alloc] initWithRootViewController:duyuru];
sikayetViewController *sikayet = [[sikayetViewController alloc] initWithNibName:#"sikayetViewController" bundle:nil];
UINavigationController *navigationController4 = [[UINavigationController alloc] initWithRootViewController:sikayet];
digerViewController *diger = [[digerViewController alloc] initWithNibName:#"digerViewController" bundle:nil];
UINavigationController *navigationController5 = [[UINavigationController alloc] initWithRootViewController:diger];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = #[navigationController1,navigationController2,navigationController3,navigationController4,navigationController5];
[self.window setRootViewController:tabBarController];
[self.window makeKeyAndVisible];
You should add tab bar controller as a root view controller:
[self.window setRootViewController:tabBarController];
also it's a good idea to first add object to array and after that do something with it, (other way round):
[tabs addObject:navController];
[tabBarController setViewControllers:tabs];
UIViewController *viewController_favorites = [[[FavoritesViewController alloc] initWithNibName:#"FavoritesViewController" bundle:nil] autorelease];
UIViewController *viewController_project = [[[ProjectViewController alloc] initWithNibName:#"ProjectViewController" bundle:nil] autorelease];
UIViewController *viewController_search = [[[Search alloc] initWithNibName:#"Search" bundle:nil] autorelease];
UIViewController *viewController_setting = [[[SettingViewController alloc] initWithNibName:#"SettingViewController" bundle:nil] autorelease];
UINavigationController *navController_favorite = [[[UINavigationController alloc] initWithRootViewController:viewController_favorites] autorelease];
UINavigationController *navController_project = [[[UINavigationController alloc] initWithRootViewController:viewController_project] autorelease];
UINavigationController *navController_search = [[[UINavigationController alloc] initWithRootViewController:viewController_search] autorelease];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navController_favorite,navController_project,navController_search,viewController_setting, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
If you want to have a UITabBarController as your app's rootViewcontroller you can add this code to the didFinishLaunchingWithOptions function.
It adds a navigation controller containing a list controller and a simple view controller:
- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions
{
UITabBarController* tabBarController = [[UITabBarController alloc] init];
UITableViewController* myListController = [[MyListController alloc] init];
UINavigationController* navigationControllerMyList = [[UINavigationController alloc] initWithRootViewController:myListController];
navigationControllerMyList.tabBarItem = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:0];
UIViewController* simpleViewController = [[SimpleViewController alloc] init];
simpleViewController.tabBarItem = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemContacts tag:0];
tabBarController.viewControllers = #[ navigationControllerMyList , simpleViewController ];
self.window = [[UIWindow alloc] init];
self.window.rootViewController = tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
I am unable to set a certain tab view to be a UiNavigation controller. The warning I get is:
Pushing a navigation controller is not supported
Here is my code:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
UIViewController *viewController1, *viewController2, *viewController3, *viewController4;
viewController1 = [[HomeViewController alloc] initWithNibName:#"HomeViewController_iPhone" bundle:nil];
viewController2 = [[SearchViewController alloc] initWithNibName:#"SearchViewController_iPhone" bundle:nil];
viewController3 = [[ListViewController alloc] initWithNibName:#"ListViewController_iPhone" bundle:nil];
viewController4 = [[InfoViewController alloc] initWithNibName:#"InfoViewController_iPhone" bundle:nil];
self.tabBarController = [[UITabBarController alloc] init];
UINavigationController * listNavController = [[UINavigationController alloc] initWithRootViewController:viewController3];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, listNavController, viewController4, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
self.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, listNavController, viewController4, nil];
to
self.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, viewController3, viewController4, nil];
and keep a reference to the nav controller if needed. I think that would be the right way to do it, but you could also wrap the nav controller in a simple UIViewController. You would want to do this if viewController3 is not guaranteed to be the bottom most VC in your stack at all times.
I'm trying to add a UINavigationController to my existing view controller by adding this in ViewDidLoad:
- (void)viewDidLoad
{
[super viewDidLoad];
navController = [[UINavigationController alloc]init];
[self.view addSubview:navController.view];
}
But by doing it this way, it completely blocks my view. It puts a UINavigationBar on the top but the rest of the view doesn't respond to input.
This is how I am presenting the view. The SecondViewController is the one I want to have a NavController:
UITabBarController *tabController = [[UITabBarController alloc] init];
FirstViewController *viewController1 = [[FirstViewController alloc] initWithNibName:#"CardsViewController" bundle:nil];
UITabBarItem *tab1 = [[UITabBarItem alloc] initWithTitle:#"First"
image:[UIImage imageNamed:#"img1.png"] tag:1];
[viewController1 setTabBarItem:tab1];
SecondViewController *viewController2 = [[SecondViewController alloc] initWithNibName:#"ShoppingViewController" bundle:nil];
UINavigationController *SecondViewNavCont = [[UINavigationController alloc]initWithRootViewController:viewController2];
UITabBarItem *tab2 = [[UITabBarItem alloc] initWithTitle:#"Second"
image:[UIImage imageNamed:#"img2.png"] tag:2];
[SecondViewNavCont setTabBarItem:tab2];
UIViewController *viewController3 = [[UIViewController alloc] init];
UITabBarItem *tab3 = [[UITabBarItem alloc] initWithTitle:#"Third"
image:[UIImage imageNamed:#"img3.png"] tag:3];
[viewController3 setTabBarItem:tab3];
tabController.viewControllers = [NSArray arrayWithObjects:viewController1,
viewController2,
viewController3,
nil];
[self.view addSubview:tabController.view];
You cannot add it to the current view controller
What you need to do is instead of presenting the ViewController is to add this viewcontroller to the navigationview controller and present that
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:YourPresentedViewController];
//then present the navController
[self presentModalViewController:navController animated:YES];
Now when you present it do the following
NSArray arrayWithObjects:viewController1,
SecondViewNavCont,
viewController3,
nil];
You can try this code for load uiviewcontroller to uinavigationcontroller:
yourviewController *viewcontroller=[[yourviewController alloc] initWithNibName:#"yourviewController" bundle:nil];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:viewcontroller];
[self presentModalViewController:navController animated:YES];
(or) you want to load uinavigationcontroller in application startup try below code in your application delegate class:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:viewcontroller.view];
[self.window addSubview:navController.view];
[self.window makeKeyAndVisible];
return YES;
}
Welcome!
You need to set the RootViewController for the navController object. Then further you can push UIViewcontroller objects using pushViewController method.
You need to add a view for that Navigation Controller. The added Navigation Controller has no view so it was overlaying on the UIViewController
You need to add
[[UINavigationController alloc] initWithNibName:#"ViewControllerName" bundle:nil];