[ Version ( since = "1.2" ) ]
public void reorder_child_after (Widget child, Widget? sibling)
Moves child to the position after sibling in the list of children.
If sibling is `NULL`, move child to the first position.
| this |
a leaflet |
| child |
the widget to move, must be a child of this |
| sibling |
the sibling to move |