itemExtent property
The size of the children along the main axis. Children RenderBoxes will be given the BoxConstraints of this exact size.
Must be a positive number.
Implementation
double get itemExtent => _itemExtent;
Implementation
set itemExtent(double value) {
assert(value > 0);
if (value == _itemExtent) {
return;
}
_itemExtent = value;
markNeedsLayout();
}