Flutter package for drag and drop reordering of two-level lists

drag and drop_lists

two-level drag and drop reorderable lists.

features

• reorder elements between multiple lists
• reorder lists
• drag and drop new elements from outside of the lists
• vertical or horizontal layout
• expandable lists
• can be used in slivers
• easy to extend with custom layouts

usage

to use this plugin, add drag_and_drop_lists as a dependency in your pubspec.yaml file.
for example:

dependencies:
  drag_and_drop_lists: ^0.0.6

now in your dart code, you can use: import 'package:drag_and_drop_lists/drag_and_drop_lists.dart';

to add the lists, add a draganddroplists widget. set its children to a list of draganddroplist. likewise, set the children of draganddroplist to a list of draganddropitem.
for example:

...

  draganddroplists(
    children: list.generate(_lists.length, (index) => _buildlist(index)),
    onitemreorder: _onitemreorder,
    onlistreorder: _onlistreorder,
  ),

...

_buildlist(int outerindex) {
  var innerlist = _lists[outerindex];
  return draganddroplist(
    title: text('list ${innerlist.name}'),
    children: list.generate(innerlist.children.length, (index) => _builditem(innerlist.children[index])),
  );
}

_builditem(string item) {
  return draganddropitem(
    child: listtile(
      title: text(item),
    ),
  );
}

for further examples, see the example app or view the example code directly.