UItabBar changing View Controllers

Question

i have some difficulties changing tab bar controllers. Basically I have UITabBarController with 3 controllers. First time when app starts. I change one controller like this:

Answer 1

First I assume you meant:

[self.tabBarController setSelectedIndex:1];

Failing that it sounds like the problem is with your _tabBarControllers.

what do the following output:

NSLog(@" _tabBarControllers count = %d", [_tabBarControllers count]);
NSArray* newArray = [NSArray arrayWithArray:self.tabBarController.viewControllers];
NSLog(@" newArray count = %d", [newArray count]);

EDIT: Does the following successfully remove the first tab with no problems?

NSMutableArray* newArray = [NSMutableArray arrayWithArray:self.tabBarController.viewControllers];
[newArray removeObjectAtIndex:0]; 
[self.tabBarController setViewControllers:newArray animated:YES];

EDIT 2 :

try changing:

[muteArray addObjectsFromArray:_navigationCotroller.viewControllers];
online.tabBarControllers = [muteArray copy];
[muteArray replaceObjectAtIndex:1 withObject:online];

to:

[muteArray addObjectsFromArray:self.tabBarController.viewControllers];
[muteArray replaceObjectAtIndex:1 withObject:online];
online.tabBarControllers = [muteArray copy];

To be honest I'm finding it hard to follow your app structure and object references.