Change tabbarController's tab programmatically with animation

Question

I want to change tab through code with animation. Exact scenario is that there are 2 tabs with below hierarchy.

First tab
  - Navigation controller
    - Log         


        

Answer 1

try this

- (void)logoutButtonPressed
{
    // Go to root controller in navigation controller of first tab.
    [self.navigationController popToRootViewControllerAnimated:YES];


    NSArray *tabViewControllers = self.tabBarController.viewControllers;


    UIView * fromView = self.tabBarController.selectedViewController.view;


    UIView * toView = self.view;

    NSUInteger fromIndex = [tabViewControllers indexOfObject:self.tabBarController.selectedViewController];


    NSUInteger toIndex = [tabViewControllers indexOfObject:self];

    [UIView transitionFromView:fromView
                        toView:toView
                      duration:0.3
                       options: toIndex > fromIndex ? UIViewAnimationOptionTransitionFlipFromLeft : UIViewAnimationOptionTransitionFlipFromRight
                    completion:^(BOOL finished) {

                            self.tabBarController.selectedIndex = 0;

                    }];


}