didAttachRenderer method

@override void didAttachRenderer()

Implementation

@override
void didAttachRenderer() {
  super.didAttachRenderer();
  // Should add image box after style has applied to ensure intersection observer
  // attached to correct renderBoxModel
  if (!_isInLazyLoading || _renderImage == null) {
    // Image dimensions (width or height) should specified for performance when lazy-load.
    if (_shouldLazyLoading) {
      RenderReplaced renderReplaced = renderBoxModel! as RenderReplaced;
      renderReplaced.isInLazyRendering = true;

      // When detach renderer, all listeners will be cleared.
      renderReplaced.addIntersectionChangeListener(_handleIntersectionChange);
    } else {
      _loadImage();
    }
  }
}