I hope anyone can explane me how to do this:
I have a TabBar and two TabBarItems, how can I attatch the Items to the TabBar.
I am not doing this via IB because the TabBar only fits have of the screen because the items should be on the left side.
thats how i build them:
tabBarController = [[UITabBarController alloc] initWithNibName:nil bundle:nil];
tabBarController2 = [[UITabBarController alloc] initWithNibName:nil bundle:nil];
tabBarController.tabBar.frame = CGRectMake(0, 974, 384, 50);
tabBarController2.tabBar.frame = CGRectMake(384, 974, 384, 50);
UITabBarItem *tbi1 = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemMostViewed tag:0];
UITabBarItem *tbi2 = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemMostViewed tag:1];
You don't set tab bar items directly in the tab bar. Instead, you assign a tab bar item to the tabBarItem property for each view controller contained by your tab bar controller. Then when you add your view controllers to the tab bar controller, the tab bar controller will manage the display of your tab bar items for you.
UITabBarController * tabBarController = [[UITabBarController alloc] init];
UIViewController * viewController1 = [[YourViewController alloc] init];
UIViewController * viewController2 = [[YourOtherViewController alloc] init];
viewController1.tabBarItem = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemMostViewed tag:0];
viewController2.tabBarItem = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemMostViewed tag:1];
tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, nil];
Related
What is the best practice or good way to have with 2 tabs behave like a UINavigationController when clicking through views after the tab bar views.
Do I make a UINavigationController for each tab?
The tab bar is created like so:
// Create the tab bar text and images
AViewController *viewA = [[AViewController alloc] init];
BViewController *viewB = [[BViewController alloc] init];
UITabBarItem *tabA = [[UITabBarItem alloc] initWithTitle:#"A" image:[UIImage imageNamed:#"a.png"] tag:1];
UITabBarItem *tabB = [[UITabBarItem alloc] initWithTitle:#"B" image:[UIImage imageNamed:#"b.png"] tag:2]
viewA.tabBarItem = tabA;
viewB.tabBarItem = tabB;
NSArray* controllers = [NSArray arrayWithObjects:viewA, viewB, nil];
self.viewControllers = controllers;
For navigation you need to create UINavigationController for each like this
Updated : Try now
AViewController *viewA = [[AViewController alloc] init];
BViewController *viewB = [[BViewController alloc] init];
UINavigationController *navA = [[UINavigationController alloc]initWithRootViewController:viewA];
UINavigationController *navB = [[UINavigationController alloc]initWithRootViewController:viewA];
UITabBarItem *tabA = [[UITabBarItem alloc] initWithTitle:#"A" image:[UIImage imageNamed:#"a.png"] tag:1];
UITabBarItem *tabB = [[UITabBarItem alloc] initWithTitle:#"B" image:[UIImage imageNamed:#"b.png"] tag:2]
tabA.tabBarItem = tabA;
tabB.tabBarItem = tabB;
NSArray* controllers = [NSArray arrayWithObjects:navA, navB, nil];
self.viewControllers = controllers;
Try this
I am relative new with the iOS app development. Currently I am developing a small app with a tab bar. The problem I am facing is that I would like to have different navigation items foreach tab. I tried a lot of things, but things aren't working. I am programming in the native iOS language.
In my app I've got a AppDelegate. In my AppDelegate there is a little piece of code for setting up my mainViewController:
- (void)setupOverlordViewController
{
MainViewController *rootVC = [[MainViewController alloc] initWithNibName:nil bundle:nil];
UINavigationController *navVC = [[UINavigationController alloc] initWithRootViewController:rootVC];
self.window.rootViewController = navVC;
}
I am setting up my tabs in my MainViewController:
- (void)viewDidLoad
{
UIViewController *tabView1 = [[Tab1ViewController alloc] init];
UIViewController *tabView2 = [[Tab2ViewController alloc] init];
UIViewController *tabView3 = [[Tab3ViewController alloc] init];
NSMutableArray *tabViewControllers = [[NSMutableArray alloc] init];
[tabViewControllers addObject:tabView1];
[tabViewControllers addObject:tabView2];
[tabViewControllers addObject:tabView3];
[self setViewControllers:tabViewControllers];
tabView1.tabBarItem =
[[UITabBarItem alloc] initWithTitle:NSLocalizedString(#"TabView1", nil)
image:[UIImage imageNamed:#"tabView1.png"]
tag:1];
tabView2.tabBarItem =
[[UITabBarItem alloc] initWithTitle:NSLocalizedString(#"TabView2", nil)
image:[UIImage imageNamed:#"tabView2.png"]
tag:2];
tabView3.tabBarItem =
[[UITabBarItem alloc] initWithTitle:NSLocalizedString(#"TabView3", nil)
image:[UIImage imageNamed:#"tabView3.png"]
tag:3];
}
Each View (tabView1, tabView2, tabView3) has there own layout, which is set in the ViewDidLoad method of the View. When I would like to add navigation buttons in the navigation bar by adding them in the ViewDidLoad method, but it seems impossible to add the buttons. The only way to add them is directly in my MainViewController, but then I can't set the navigation bar buttons different foreach tab.
The code for adding the buttons to my navigation bar is as follows:
UIBarButtonItem *btnNewRecord = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:#selector(btnNewRecord)];
NSArray *rightItems = [NSArray arrayWithObjects:btnNewRecord, nil];
[self.navigationItem setRightBarButtonItems:rightItems];
Could somebody explain me what I am doing wrong?
I have created a example for you by using xib files. I have created three View Controllers and added them to navigation controllers. Following the appdelegate code :
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
FirstViewController *firstVC = [[FirstViewController alloc] initWithNibName:#"FirstView" bundle:nil];
UINavigationController *firstNavVC = [[UINavigationController alloc] initWithRootViewController: firstVC];
SecondViewController *secondVC = [[SecondViewController alloc] initWithNibName:#"SecondView" bundle:nil];
UINavigationController *secondNavVC = [[UINavigationController alloc] initWithRootViewController: secondVC];
ThirdViewController *thirdVC = [[ThirdViewController alloc] initWithNibName:#"ThirdView" bundle:nil];
UINavigationController *thirdNavVC = [[UINavigationController alloc] initWithRootViewController: thirdVC];
NSMutableArray *tabViewControllers = [[NSMutableArray alloc] init];
[tabViewControllers addObject:firstNavVC];
[tabViewControllers addObject:secondNavVC];
[tabViewControllers addObject:thirdNavVC];
firstNavVC.tabBarItem =
[[UITabBarItem alloc] initWithTitle:NSLocalizedString(#"First", nil)
image:nil
tag:1];
secondNavVC.tabBarItem =
[[UITabBarItem alloc] initWithTitle:NSLocalizedString(#"Second", nil)
image:nil
tag:2];
thirdNavVC.tabBarItem =
[[UITabBarItem alloc] initWithTitle:NSLocalizedString(#"Third", nil)
image:nil
tag:3];
UITabBarController *tabbarController = [[UITabBarController alloc] init];
tabbarController.viewControllers = tabViewControllers;
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
self.window.rootViewController = tabbarController;
[self.window makeKeyAndVisible];
return YES;
}
Following is the output :
You can download code example here
you need separate navigation controller for each tab bar view controller & then you can add UIBarButtonItem on each navigation controller.
I'm programmatically instantiating a UITabBarController that will manage 2 view controllers, and then setting it as the rootViewController. However when the views appear, it highlights all the tab item's images (although the text is properly highlighted). No matter what I set to the selectedIndex the images will all appear highlighted. Only when you tap on the tab bar items does it actually toggle the highlighted state on the images. What's going on here?
Code:
UITabBarController *tabController = [[UITabBarController alloc] init];
UIStoryboard *storyboard = [self storyboard];
OGVideoStreamViewController *questionsController = [storyboard instantiateViewControllerWithIdentifier:#"OGVideoStreamViewController"];
questionsController.isQuestion = YES;
OGVideoStreamViewController *answersController = [storyboard instantiateViewControllerWithIdentifier:#"OGVideoStreamViewController"];
answersController.isQuestion = NO;
OGMatchesViewController *matchesController = [[OGMatchesViewController alloc] initWithNibName:#"OGMatchesViewController" bundle:nil];
questionsController.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Questions" image:[UIImage imageNamed:#"Tab Icon - Questions"] tag:0];
answersController.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Answers" image:[UIImage imageNamed:#"Tab Icon - Answers"] tag:1];
matchesController.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Inbox" image:[UIImage imageNamed:#"Tab Icon - Inbox"] tag:2];
[tabController setViewControllers:#[questionsController, answersController, matchesController] animated:NO];
tabController.selectedViewController = questionsController;
[[UIApplication sharedApplication] keyWindow].rootViewController = tabController;
I've had the same problem and it was due to me calling:
[UIView appearance].tintColor = [UIColor colorWithRed:1.000
green:0.793
blue:0.236
alpha:1.000];
I called it in my AppDelegate, so i could change it to the following:
self.window.tintColor = [UIColor colorWithRed:1.000
green:0.793
blue:0.236
alpha:1.000];
I want to have a common navigation bar to RecieptViewController and StockViewController and the bar should contain back button to go back to InventoryViewController.....
this code is written in InventoryViewController viewDidLoad:-
RecieptViewController *firstVC=[[RecieptViewController alloc]init];
UITabBarItem *itme1=[[UITabBarItem alloc]initWithTitle:#"First" image:nil tag:1];
itme1.title=#"Reciept";
[firstVC setTabBarItem:itme1];
StockViewController *secondView=[[StockViewController alloc]init];
UITabBarItem *item2=[[UITabBarItem alloc]initWithTitle:#"Second" image:nil tag:2];
item2.title=#"Stock";
[secondView setTabBarItem:item2];
[tapBarController setViewControllers:[NSArray arrayWithObjects:firstVC,secondView,nil]];
If you want to add navigation controllers to your UITabBarController then you must try the following:
UIViewController *viewController1, *viewController2;
UINavigationController *navigationController1, *navigationController2;
viewController1 = [[RecieptViewController alloc] initWithNibName:#"RecieptViewController" bundle:nil];
viewController2 = [[StockViewController alloc] initWithNibName:#"StockViewController" bundle:nil];
navigationController1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
navigationController2 = [[UINavigationController alloc] initWithRootViewController:viewController2];
[tapBarController setViewControllers:[NSArray navigationController1,navigationController2,nil]];
This question already has an answer here:
Showing login view controller before main tab bar controller
(1 answer)
Closed 9 years ago.
Im beginner to IOS app development learning.
I have a login screen as my first view controller and i need the second view controller to be a tab bar view controller .with 4 different tabs and i have 4 different XIB's for them.
some one help me to go ahead.
Best way you can do is Present the login screen modally when the app starts from your tab bar controller first screen, add code for presenting login screen in viewWillAppear and after login dismiss the screen. You can create TabBarController in appDelegate like this
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UITabBarController tabBarController=[[UITabBarController alloc] init];
FirstViewController *firstVC = [[UIViewController alloc] initWithNibName:#"FirstVC" bundle:nil];
UINavigationController *firstNavController = [[UINavigationController alloc] initWithRootViewController: firstVC];
SecondViewController *secondVC = [[UIViewController alloc] initWithNibName:#"secondVC" bundle:nil];
UINavigationController *secondNavController = [[UINavigationController alloc] initWithRootViewController:secondVC];
tabBarController.viewControllers = [NSArray arrayWithObjects: firstNavController, secondNavController, nil];
tabBarController.selectedIndex=0;
tabBarController.delegate = self;
UITabBarItem *item1 = [[UITabBarItem alloc] initWithTitle:#"Movies" image:[UIImage imageNamed:#"MoviesTAB.png"] tag:1];
[firstVC setTabBarItem:item1];
UITabBarItem *item2 = [[UITabBarItem alloc] initWithTitle:#"Music" image:[UIImage imageNamed:#"musicTAB.png"] tag:2];
[seconfVC setTabBarItem:item2];
tabController.tabBar.translucent = NO;
tabController.tabBar.barStyle = UIBarStyleBlack;
tabBarController.tintColor = [UIColor whiteColor];
self.window.rootViewController = tabController;
return YES;
}
Best way is use storyboard and there just have one initial UIViewController and from that make segue to UITabBarViewController.
http://youtu.be/a_DCTSTv1Mw
If you want to make it through xib make a UITabBarViewController and add viewControllers to the array of object of that UITabBarViewController's object.
Sample code :
NSMutableArray *arrViewControllers = [[NSMutableArray alloc] init];
UIViewController *tabController;
UIImage *tabImage ;
NSString *tabTitle;
for (int i= 0; i < 3; i++) {
switch (i) {
case 0:
tabController = [[ViewController alloc] init];
tabImage = [UIImage imageNamed:#"icon1.png"];
tabTitle = #"Text";
break;
case 1:
tabController = [[ImageDemoViewController alloc] init];
tabImage = [UIImage imageNamed:#"icon2.png"];
tabTitle = #"Image";
break;
case 2:
tabController = [[TableDemoViewController alloc] init];
tabImage = [UIImage imageNamed:#"icon3.png"];
tabTitle = #"Table";
break;
}
// set the image and title using some properties of UIViewController
tabController.tabBarItem.image = tabImage;
tabController.tabBarItem.title = tabTitle;
//add objects to array
[arrViewControllers addObject:tabController];
[tabController release];
}
_baseController = [[UITabBarController alloc] init];
_baseController.viewControllers = arrViewControllers;
[arrViewControllers release];
go to your appDelegate
1.create a viewController for login screen.
LoginViewController *viewController1 = [[LoginViewController alloc] initWithNibName:#"LoginViewController" bundle:nil];
2.create a navigationController with root view your login ViewController.
UINavigationController *nVC = [[UINavigationController alloc] initWithRootViewController:viewController1];
3.make navigationController to root view of window.
self.window.rootViewController = self.nVC;
[self.window makeKeyAndVisible];
Now go to Touch-Up-Inside method of login button in LoginViewController.
1.After validation of password and userId initialise your viewControllers for tabbar and TabbarViewController.
UiViewController ...*yourViewControllers,..,
UITabBarController *YourtabBarController = [[UITabBarController alloc] init];
2.Now add these viewControllers to your tabbarController.
YourtabBarController.viewControllers = #[ YourViewController1,YourViewController2,YourViewController3,......];
3.Finally push this tabbarController to navigationControllere.
[self.navigationController pushViewController:YourtabBarController animated:NO];