animation Controller lottie

repeat (can set reverse to true, it will play back)

_lottieAnimationController = AnimationController(vsync: this);

_lottieAnimationController.addStatusListener((status) {
  if(status == AnimationStatus.completed) {
    _lottieAnimationController.repeat(reverse: false);
  }
});

loop by code (forward from a specific frame)

_lottieAnimationController = AnimationController(vsync: this);

_lottieAnimationController.addStatusListener((status) {
  if(status == AnimationStatus.completed) {
    _lottieAnimationController.forward(from: 0);
  }
  print(status);

});