reorderwrap

This Widget adds Wrap to the Reorder function.
Rearrange the arrangement of multiple widgets and call back the final order, original index, and new index.
However, the conditions of the Widget list that can be used are all limited to those of the same vertical and horizontal width.

Demo

Usage

ReorderWrap uses a list widget as an argument, similar to Wrap.
The Widget element specified as a child starts sorting in LongPress.
Please refer to the sample provided in main.dart.

class _MyHomePageState extends State<MyHomePage> {
  List<Widget> _icons = <Widget>[
    Container(
      child: GestureDetector(
        child: Container(height: 90, width: 90, color: Colors.red),
        onTap: () {
          debugPrint("Tap!");
        },
      ),
    ),
    Container(height: 90, width: 90, color: Colors.blue),
    Container(height: 90, width: 90, color: Colors.purple),
    Container(height: 90, width: 90, color: Colors.blueGrey),
    Container(height: 90, width: 90, color: Colors.brown),
    Container(height: 90, width: 90, color: Colors.orange),
    Container(height: 90, width: 90, color: Colors.lime),
    Container(height: 90, width: 90, color: Colors.lightGreen),
    Container(height: 90, width: 90, color: Colors.pink),
    Container(height: 90, width: 90, color: Colors.lightGreenAccent),
    Container(height: 90, width: 90, color: Colors.yellow),
  ];
  List<int> _indexList;

  @override
  void initState() {
    super.initState();
    _indexList = List.generate(_icons.length, (i)=>i);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Column(
        children: <Widget>[
          ReorderWrap(
            itemHeight: 90,
            itemWidth: 90,
            children: _icons,
            reorderCallback: (newIndexList, oldIndex, newIndex){
              setState(() {
                _indexList = newIndexList;
              });
            },
          ),
          Text(_indexList.toString(), 
            style: TextStyle(fontSize: 20)
          )
        ],
      ),
    );
  }
}

reorderwrap Class Argument

itemHeight

Height of one child Widget.

itemWidth

Width of one child Widget.

children

Widget list as child element.

reorderCallback

You can get indexlist, oldindex, newindex after sorting.