expand method

void expand()

Expand and restore previously collapsed pane.

Implementation

void expand() {
  if (!_isLeadingCollapsed && !_isTrailingCollapsed) return;
  _isLeadingCollapsed = false;
  _isTrailingCollapsed = false;
  _ratio = _savedRatio ?? _initialRatio ?? 0.5;
  _leadingExtent = null;
  notifyListeners();
}