CODEWITHSUNDEEP
iphoneobjective-ciosipaduitabbarcontroller
itechnician
itechnician

Reputation: 1655

Navigation among tab bar items Programmatically

I have a Tab bar Controller containing 5 Tabs and each tab bar item has individual navigation controller like : enter image description here enter image description here

Now , If i am currently in viewctrller3 of navigationctrller3 in Tab3 and i want to navigate to viewctrller2 of navigationctrller1 in Tab1 programmatically . Also I've selected the particular Tab1 programmatically But i m unable to reach viewctrller2 of navigationctrller1. Is this feasible ?, If yes , then please elaborate.. Please guys join hands..!

Upvotes: 2

Views: 2805

Answers (4)

rdelmar
rdelmar

Reputation: 104082

If you are currently in viewctrller3, I think you should be able to do this:

    UITabBarController *tabCont = (UITabBarController *)[self.navigationController parentViewController];
    [tabCont setSelectedIndex:0];
    UINavigationController *nav1 = tabCont.selectedViewController;
    NSarray *newControllers = [NSArray arrayWithObjects:[nav1.viewControllers objectAtIndex:2],[nav1.viewControllers objectAtIndex:0],[nav1.viewControllers objectAtIndex:1], nil];
    [nav1 setViewcontrollers:newControllers animated:NO];

That last line should rearrange the navigation controller's viewControllers so that viewctrller2 is now the top view controller.

Upvotes: 3

Javal Nanda
Javal Nanda

Reputation: 1838

One way to achieve this is

  1. before setting the SelectedIndex of a tabbar , you maintain one reference variable in appDelegate and assign to it the name of the class which is required to be navigated after tab selection.
  2. In the delegate of tabbar controller :
    • (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController; check whether the visible controller is kind of class same as the class name that is set in appdelegate reference variable? If yes then nothing to do , if not then check if that controller is in the navigation stack or not? If its there in stack then pop/push to that index controller else create that controller and push to it.

Upvotes: 0

AppleDelegate
AppleDelegate

Reputation: 4249

From ViewController3 execute..

   UINavigationController *navigationController1 =       [appDelegate.tabBarController.viewControllers objectAtIndex:2]; // fetch the navigationController

            [navigationController1 popToViewController:[navigationController1.viewControllers objectAtIndex:1] animated:NO];

            [appDelegate .tabBarController setSelectedIndex:0];

Upvotes: -1

junaidsidhu
junaidsidhu

Reputation: 3580

I dont think that there will be any issue in this. suppose your nav1 is 1st navigationController.

[self.nav1 pushViewController:view2 animated:YES];

its will have to work for you.

Upvotes: -1

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