title: How can i deal with a lot of elements with same animation?
body: <p>My question in the larger case is not specific, but general. Suppose I have a list of elements and I need to animate each of them with the same animation.</p>
  <p>For example,</p>
  <p>. . . . .</p>
  <p>I need to apply fade in animation on each dot with delay.
  One way i see, is to create AnimatedController to each dot.
  And start each AnimatedController.forward() with delay.</p>
  <p>So how can it be, when i have a lot of items with the same animation, maybe there is a bettar way to do something like this (e.g. somehow override one controller for each element)?</p>