onVisibilityChanged property

VisibilityChangedCallback? get onVisibilityChanged

See VisibilityDetector.onVisibilityChanged.

Implementation

VisibilityChangedCallback? get onVisibilityChanged => _onVisibilityChanged;

set onVisibilityChanged (VisibilityChangedCallback? value)

Used by VisibilityDetector.updateRenderObject.

Implementation

set onVisibilityChanged(VisibilityChangedCallback? value) {
  _onVisibilityChanged = value;
  markNeedsCompositingBitsUpdate();
  markNeedsPaint();
}