getPreviewParametersAs<T extends OverlayItemParameters> method

T? getPreviewParametersAs<T extends OverlayItemParameters>()

Convenience typed accessor for previewData.

Returns

  • The underlying parameters object if it is of type T, otherwise null.

Implementation

T? getPreviewParametersAs<T extends OverlayItemParameters>() {
  final OverlayItemParameters? cp = previewData;
  if (cp is T) {
    return cp;
  }
  return null;
}