CustomAdapter

  • Custom implementation of large Cell in LisView.
  • The Factors of the Adapter are similar to the Component’s. The difference is that the view part of the Adapter returns a ListAdapter.
  • Sample Code
  1. class CommentAdapter extends Adapter<CommentState> {
  2.     CommentAdapter()
  3.         : super(
  4.             adapter: buildCommentAdapter,
  5.             effect: buildCommentEffect(),
  6.             reducer: buildCommentReducer(),
  7.         );
  8. }
  10. ListAdapter buildCommentAdapter(CommentState state, Dispatch dispatch, ViewService service) {
  11.     final List<IndexedWidgetBuilder> builders = Collections.compact(<IndexedWidgetBuilder>[]
  12.     ..add((BuildContext buildContext, int index) =>
  13.         _buildDetailCommentHeader(state, dispatch, service))
  14.     ..addAll(_buildCommentViewList(state, dispatch, service))
  15.     ..add(isEmpty(state.commentListRes?.items)
  16.         ? (BuildContext buildContext, int index) =>
  17.             _buildDetailCommentEmpty(state.itemInfo, dispatch)
  18.         : null)
  19.     ..add(state.commentListRes?.getHasMore() == true
  20.         ? (BuildContext buildContext, int index) => _buildLoadMore(dispatch)
  21.         : null));
  22.     return ListAdapter(
  23.     (BuildContext buildContext, int index) =>
  24.         builders[index](buildContext, index),
  25.     builders.length,
  26.     );
  27. }
  29. ///builds