toggleComponent method
切换组件状态
Implementation
void toggleComponent(LayoutPosition position) {
final controller = _controllers[position];
if (controller == null) return;
if (isAnimating(position)) return;
final expandedNotifier = getExpandedNotifier(position);
final isExpanded = expandedNotifier.value;
expandedNotifier.value = !isExpanded;
if (isExpanded) {
controller.reverse();
} else {
controller.forward();
}
}