flexColumnWidths method
设置所有列宽为弹性值
Implementation
TableBuilder flexColumnWidths(double flex) {
final widths = <int, TableColumnWidth>{};
if (children.isNotEmpty && children.first.children.isNotEmpty) {
for (int i = 0; i < children.first.children.length; i++) {
widths[i] = FlexColumnWidth(flex);
}
}
_columnWidths = widths;
return this;
}