UIDynamics with Core Animation - uikit-dynamics

Question

I have used UIDynamics before, but I never used it along with the methods provided by the Core Animation framework.
I basically would like to achieve something very simple:
I would like my UI Object to travel along a path and have another UI Object attached to it.
I create the attachment behavior like so:
attachment = [[UIAttachmentBehavior alloc] initWithItem:view2 attachedToItem:view1];
So, as view1 being animated, view2 will follow.
All this is working if I trigger it using a UIPushBehavior.
My question is, is it possible to mix UIDynamics using:
CABasicAnimation, CAKeyFrameAnimation and [UIView ....] animation block?
I tried to animate view1 using an animation block.
Result: while view1 is being animated, view2 is not being attached.
If I set off the above using a push behavior, it animates and view2 is attached to view1 without problem.
Again, is it possible applying UIDynamics behaviors to UI Objects while using CABasicAnimation, CAKeyFrameAnimation and [UIView ....] animation block for animation?
Addendum:
Thought I would add the animation block I use (didn't add it because I thought it was too juvenile and simple to mention), but for completeness' sake:
[UIView animateWithDuration:5.0f animations:^
{
view1.center = (CGPoint){320.0, 480.0};
}];
For alloc and init'ing UIDynamics properties it is done in viewDidLoad:
animator = [[UIDynamicAnimator alloc] initWithReferenceView:self.view];
attachment = [[UIAttachmentBehavior alloc] initWithItem:view2 attachedToItem:view1];
[animator addBehavior:attachment];