addRow method
Adds a row to the end of the table.
The newly added children must not already have parents.
Implementation
void addRow(List<RenderBox?> cells) {
assert(cells.length == columns);
assert(_children.length == rows * columns);
_rows += 1;
_children.addAll(cells);
for (final RenderBox? cell in cells) {
if (cell != null) {
adoptChild(cell);
}
}
markNeedsLayout();
}