tick method

@override bool tick(double delta, Duration elapsed)

Called each time there is an update from the ticker on the AnimatedBackground

The implementation must return true if there is a need to repaint and false otherwise.

Implementation

@override
bool tick(double delta, Duration elapsed) {
  if (!isInitialized) return false;
  for (var bubble in bubbles!) {
    bubble.radius = bubble.radius! +
        delta * (bubble.popping ? options.popRate : options.growthRate);

    if (bubble.radius! >= bubble.targetRadius) {
      if (bubble.popping)
        _initBubble(bubble);
      else
        _popBubble(bubble, false);
    }
  }
  return true;
}