paint method
Paints this render object into the given context at offset.
Implementation
@override
void paint(PaintingContext context, Offset offset) {
_paintHeader(context, offset.x.toInt(), offset.y.toInt());
if (expanded) {
for (final child in children) {
final ExpansionTileParentData childData =
child.parentData as ExpansionTileParentData;
context.paintChild(child, offset + childData.offset);
}
}
}