RenderVisibilityDetector constructor

RenderVisibilityDetector({
  1. RenderBox? child,
  2. required Key key,
  3. required VisibilityChangedCallback? onVisibilityChanged,
})

Constructor. See the corresponding properties for parameter details.

Implementation

RenderVisibilityDetector({
  RenderBox? child,
  required this.key,
  required VisibilityChangedCallback? onVisibilityChanged,
})  : assert(key != null),
      _onVisibilityChanged = onVisibilityChanged,
      super(child);