disposeScrollAnim method

dynamic disposeScrollAnim()

Implementation

disposeScrollAnim() {
  // 尝试移除残留的 listener
  if (_slideListener != null) {
    try {
      _slideAnimation.removeListener(_slideListener!);
    } catch (_) {}
    _slideListener = null;
  }
  if (_scrollListener != null) {
    try {
      _scrollController.removeListener(_scrollListener!);
    } catch (_) {}
    _scrollListener = null;
  }
  _slideController.dispose();
  _scrollController.dispose();
}