how to add UITabBarItem programmatically?

Question

In my application, i have added UITabBarController in "Storyborad". But now i want to add UITabBarItem programmatically. Let's say there are 5 buttons and when ever user click on that button my UITabBarController is called. There are total 5 tab in "tabbar". e.g:

Tab name:item1,item2,item3,item4,item5. Button name:item1,item2,item3,item4,item5.

Let's say user click on item1 button, UITabBarcontroller is called. Now user should not be able to see that item1 tab in "tabbarcontroller", he should be able to see the reset "tabBaritem".

Can anyone help me out with this? How to do it programmatically?

Thanks.

Nilesh J

Answer 1

UITabBarItem * itemNew = [[UITabBarItem alloc] initWithTitle:@"Page 1"
                                                     image:[UIImage imageNamed:@"page1_image_normal"]
                                             selectedImage:[UIImage imageNamed:@"page1_image_selected"]];

Get existing tabBarItems

NSMutableArray *tbItems = [NSMutableArray arrayWithArray:[self.tabBar items]];
//Add your new tabBarItem
[tbItems addObject:itemNew];

//Set your tabBar items to the new array
[self.tabBar setItems:tbItems];

Swift 4

if var controllers = tabBarController?.viewControllers {
   let tabItem = UITabBarItem(title: "Item \(controllers.count)", image: nil, selectedImage: nil)
   let vc = UIViewController() // your new view controller
   vc.tabBarItem = tabItem
   controllers.append(vc) // or insert at index up to you
   tabBarController?.setViewControllers(controllers, animated: true)
}

Answer 2

To call tabBar click event you need to do the following:

call delegatemethod on UITabBarDelegate and implement their method:

- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item {
    //self.tabBarItem.title = @"Title";
}