getSelectedIndexPaths method
Get the list of selected cell 's index
拿到选择的cell的索引集合
Implementation
List<int> getSelectedIndexPaths({bool sorted = false}) {
final List<int> res = List.from(selectedSet);
if (sorted) {
res.sort((d1, d2) {
return d1.compareTo(d2);
});
}
return res;
}