Search code examples
iosanimationuinavigationitem

stop animateWithDuration in navigationItem

i am trying to animate my navigationItem.rightBarButtonItem to blink repeatedly from green to white... So I do this

UIView.animateWithDuration(1.0, delay:0, options: [.Repeat, .Autoreverse], animations: {
    self.navigationItem.rightBarButtonItem?.tintColor = .greenColor()                
}, completion: nil)

as i see in this question

and it work

the problem is that i am using UITabView and every time i switch between views and return to the first view the blink is stop

and i think its because i stuck layer after layer of animation somewhere

i understand that to remove the animation i should use layer.removeAllAnimations()

the problem is that i don't know which view to do it on

i tried self.view.layer.removeAllAnimations() and it didn't work.

how do i get to this layer that i create for the navigationItem animation

so i can remove it?

Solution

  • i solve this issue with relocating the creation of the animation

    in the beginning i placed that in the viewWillAppear function

    and also tried to init the button to white color just before that

    but its looks like it didn't work that way so i relocate the animation to

    the viewDidAppear function and leave the init of the button to white color

    in the viewWillAppear and its seems to work ok now :)

    thanks