iOS Tab Bar Interface - objective-c

Question

I have a login screen for a UITabBar application where users are divided into two categories. I want to show a certain tab for one type of user and other tabs for the other type of user. Does anyone have an idea of where to start?

Answer 1

In one of my app i have used this code to set tabbarcontroller in between app
First create login screen without tabbarcontroller
This is just a example modify according your condition
define tabbar controller in your AppDelegate.m
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.delegate=self;
self.tabBarController.selectedIndex=0;
self.tabBarController.delegate=self;
- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController{
//NSUInteger index=[[tabBarController viewControllers] indexOfObject:viewController];
// return YES;
}
Apply below code where you login and push your controller with tab bar controller
AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
UIViewController *viewController1 = [[GeneralViewController alloc] initWithNibName:#"GeneralViewController" bundle:nil];
UIViewController *viewController2 = [[MiscQuotationController alloc] initWithNibName:#"MiscQuotationController" bundle:nil];
UIViewController *viewController4 = [[QuotationListController alloc] initWithNibName:#"QuotationListController" bundle:nil];
UIViewController *viewController5 = [[ChargesViewController alloc] initWithNibName:#"ChargesViewController" bundle:nil];
UIViewController *viewController7 = [[SalesPartViewController alloc] initWithNibName:#"SalesPartViewController" bundle:nil];
/// tab button title
viewController1.title = #"Basic information";
viewController2.title = #"Misc Quotation";
viewController4.title = #"Quotation Line";
viewController5.title = #"Charges";
viewController7.title = #"Sales Part Stock";
// tab button Images
viewController1.tabBarItem.image = [UIImage imageNamed:#"general.png"];
viewController2.tabBarItem.image = [UIImage imageNamed:#"misle.png"];
viewController4.tabBarItem.image = [UIImage imageNamed:#"history.png"];
viewController5.tabBarItem.image = [UIImage imageNamed:#"charges.png"];
viewController7.tabBarItem.image = [UIImage imageNamed:#"shoebox.png"];
delegate.tabBarController = [[UITabBarController alloc] init];
delegate.tabBarController.selectedIndex = 0;
// Write your condition of user here
if(user == admin){
delegate.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController4, viewController5, viewController7, nil];
}
else{
delegate.tabBarController.viewControllers = [NSArray arrayWithObjects: viewController2, viewController4, viewController5, viewController7, nil];
}
delegate.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, viewController4, viewController5, viewController7, nil];
delegate.tabBarController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self.navigationController pushViewController:delegate.tabBarController animated:YES];