resizeObserver property

ResizeObserver resizeObserver

Implementation

late final resizeObserver = ResizeObserver((entries, observer) {
  if (widget.height == null) {
    for (final entry in entries) {
      if (entry.contentRect is DomRectReadOnly) {
        final cr = entry.contentRect;
        setState(() {
          height = cr.height;
          _divElement.style.height = '${height}px';
        });
      }
    }
  }
});