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iOS

Posted by Sinan the Thinker
Sinan the Thinker
7,980 Points

How to hide back button at UITabBarController

Hi guys,

I am trying to make a variation of the ribbit app with different ussers, and therefore different UITabBarControllers. When I use a segue to connect the UITabBarController, it shows automatically a back button at the UITabBarController.

I tried to solve it with using prepareforsegue, but I wasnt successful.

I also tried to create a custom class for uitabbarcontroller to set it in that class programatically, but I can just create a uitabbar, wherein I cannot set this as a class for the uitabbarcontroller.

if (currentUser){

                    //the user is logged in. now you need to check the type of the user to determine if you need to segue or not
                    if ([currentUser[@"type"] isEqualToString:@"garage"]){

                        NSLog(@"type: %@",currentUser );
                        [self performSegueWithIdentifier:@"showInboxGarage" sender:self];
                        // i want that to set  setHidesBottomBarWhenPushed:YES to this segue


                    } else {

                        NSLog(@"type: %@",currentUser );
                        [self performSegueWithIdentifier:@"showInboxLeverancier" sender:self ];  // i want that to set  setHidesBottomBarWhenPushed:YES to this segue

                    }

9 Answers

Sinan the Thinker
Sinan the Thinker
7,980 Points

not solved

Fernando Claussen
Fernando Claussen
9,324 Points
Fernando Claussen
Fernando Claussen
9,324 Points

I don't understand, UITabBarControllers doesn't have back buttons.

Aren't you confusing it with the navigation controller?

Sinan the Thinker
Sinan the Thinker
7,980 Points
Sinan the Thinker
Sinan the Thinker
7,980 Points

In the mainstoryboard file there is written Tab Bar Controller. It is the view controller with several tab on it (inbox, friends, etc.)

Fernando Claussen
Fernando Claussen
9,324 Points

Yes, but it doesn't give you a back button. What gives you a back button is the Navigation Controller

Robert Bojor
PLUS
Robert Bojor
Courses Plus Student 29,439 Points
Robert Bojor
Robert Bojor
Courses Plus Student 29,439 Points

I believe he wants to hide the bottom bar from a TabBarController actually, if you look at the code example above, written in the comments.

If you want to hide the bottom bar or even a navigation bar you can do so in the destination view controller. I'm using viewWillAppear: to issue these kind of commands - see the example below.

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    self.navigationController.navigationBar.hidden = NO;
    self.tabBarController.tabBar.hidden = YES;
    [self.navigationController.navigationBar setTranslucent:YES];
    [self updateNewsFeed];
}
Sinan the Thinker
Sinan the Thinker
7,980 Points
Sinan the Thinker
Sinan the Thinker
7,980 Points

Hi,

I want to hide the <- (back) button when arrived at the tabbarcontroller. I will figure it out in combination with above code and navigationItem.hidesbackbutton.

Ive tried

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    self.tabBarController.hidesBackButton = YES;

the result is: property HidesBackButton not found on object of type UITabBarController ... this must be something easy...but how??

Robert Bojor
PLUS
Robert Bojor
Courses Plus Student 29,439 Points
Robert Bojor
Robert Bojor
Courses Plus Student 29,439 Points

Then all you need to do is add

self.tabBarController.tabBar.hidden = YES;

under viewWillAppear on the destination ViewController and you should be fine.

Sinan the Thinker
Sinan the Thinker
7,980 Points
Sinan the Thinker
Sinan the Thinker
7,980 Points

but where should i add that code? Because I have not created a class for the tabbarcontroller. I am putting this code into inboxviewcontroller (rootviewcontroller) to tabbarcontroller...with no result :/

- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([segue.identifier isEqualToString:@"showInboxLeverancier"]) {self.tabBarController.tabBar.hidden = YES;}


}
Robert Bojor
PLUS
Robert Bojor
Courses Plus Student 29,439 Points
Robert Bojor
Robert Bojor
Courses Plus Student 29,439 Points

That code goes inside the viewWillAppear that is on the ViewController your segue points towards.

I'm guessing that segue goes somewhere, well, on the implementation file that handles the destination view controller, under the viewWillAppear method you add that code.

Sinan the Thinker
Sinan the Thinker
7,980 Points
Sinan the Thinker
Sinan the Thinker
7,980 Points

How can I create a UITabBarViewController objective C class ? That code belongs into the viewwillappear of there