Action bar in all uiviewcontrollers in iOs

Question

What's the best approach of creating an action bar (only once) in iOs that persists its position/size/content in all the UIViewControllers? Can I animate the UIViewController being pushed without animating the bar?

I was checking if it can be done with the UIToolBar or the UINavigationController. Am I on the right track?

Thanks in advance

Answer 1

I ended up doing the following:

1- Created a UIViewController in the story board that contains a UIView designed as an action bar and below it a container

2- I embedded this container to another UIViewController that will be the root view controller in this case

3- On prepareForSegue, I saved the UIViewController instance loaded inside the container

4- To switch between this UIViewController and the second one:

UIViewController *newController = ...
UIViewController *oldController = ...

[oldController willMoveToParentViewController:nil];
[self addChildViewController:newController]; 

[self transitionFromViewController:oldController 
toViewController:newController 
duration:0.1
options:UIViewAnimationOptionTransitionNone
animations:^(void) {
    oldController.view.frame = CGRectMake(0 - width, 0, width, height);
    newController.view.frame = CGRectMake(0, 0, width, height);
} 
completion:^(BOOL finished){
    [newController didMoveToParentViewController:self];
}

];