Hi @SongJiyeon,

sorry for the late response, I have been quite busy. Thanks a lot for your work. Unfortunatelly, your code does not handle dynamic spacings correctly.

In addition, I think that constant vertical spaces should be provided by the item definition, i.e. by giving them a padding. This way you would have the right separation for each item instead of line by line.

Dynamic vertical spacings could be needed sometimes and can't be defined by the items, but I don't think there is really a need for it. Maybe if someone creates a feature request I'll think of implementing it...