A simple list layout that positions items from top to bottom, in a single column, where every item fills the entire width of the container.
requestedRowCount:Null<Int> = 5
The number of rows to render, if the height of the container has not
been set explicitly. If
null, shows all rows.
rowHeight:Null<Float> = null
The height to set on each item, or
null, if the row height should be