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empty space after all elements in groupedlistview Flutter

I am using the groupedlistview library and I have a problem, after all the elements there is an empty space, how to get rid of it?

GroupedListView<BookComposition, String>(
                              shrinkWrap: true,
                              elements: _elements,
                              groupBy: (element) => element.ticketTypeName!,
                              groupComparator: (value1, value2) => value2.compareTo(value1),
                              itemComparator: (item1, item2) =>                                 item1.ticketTypeName!.compareTo(item2.ticketTypeName!),
                              order: GroupedListOrder.ASC,
                              useStickyGroupSeparators: false,
                              groupSeparatorBuilder: (String typeName) =>
                                  Container(
                                    height: 0,
                                  ),
                              itemBuilder: (c, element) {
                                if (element.ticketTypeName == ticketTypeName) {
                                  return ActionsTile(...);
                                }
                                return Container();
                              }),

I don’t seem to have any indentations, but the problem persists. help me please

enter image description here

Tags:

2

Answers


  1. 0 
    class Solution {
public:
    int firstUniqChar(string s) {
        vector<int> oc(26);
        //store frequency of each character of s
        for (auto i : s) oc[i - 'a']++;
        //first character with frequency = 1 is the answer
        for (int i = 0; i < s.size(); i++) {
            if (oc[s[i] - 'a'] == 1) return i;
        }
        //no character with frequency = 1
        return -1;
    }
};
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  2. 0 
      padding: EdgeInsets.zero,

    add padding on GroupedListView

            GroupedListView<BookComposition, String>(
          padding: EdgeInsets.zero,
          shrinkWrap: true,
          elements: _elements,
          groupBy: (element) => element.ticketTypeName!,
          groupComparator: (value1, value2) => value2.compareTo(value1),
          itemComparator: (item1, item2) => item1.ticketTypeName!.compareTo(item2.ticketTypeName!),
          order: GroupedListOrder.ASC,
          useStickyGroupSeparators: false,
          groupSeparatorBuilder: (String typeName) =>
              Container(
                height: 0,
              ),
          itemBuilder: (c, element) {
            if (element.ticketTypeName == ticketTypeName) {
              return ActionsTile(...);
            }
            return Container();
          },),
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