final key = Key('MY CUSTOM KEY, use id/title');
  final closeTag = LeftScrollCloseTag('MyTestListTag');
  // widget
  CupertinoLeftScroll(
    // important, each Row must have different key.
    // DO NOT use '$index' as Key! Use id or title.
    key: key,
    // left scroll widget will auto close while the other widget is opened and has same closeTag.
    // 当另一个有相同closeTag的组件打开时，其他有着相同closeTag的组件会自动关闭.
    closeTag: closeTag,
    buttonWidth: 80,
    child: Container(
      height: 60,
      color: Colors.white,
      alignment: Alignment.center,
      child: Text('👈 Try Scroll Left'),
    ),
    onTap: () {
      print('tap row');
      closeTag.of(key).open();
    },
    buttons: <Widget>[
      LeftScrollItem(
        text: 'edit',
        color: Colors.orange,
        onTap: () {
          print('edit');
          closeTag.of(key).close();
        },
      ),
      LeftScrollItem(
        text: 'delete',
        color: Colors.red,
        onTap: () {
          // with animation
          closeTag.of(key).remove(() async {
            print('delete');
            setState(() {
              list.remove(id);
            });
            // return false; // restore dismiss status
            return true;
          });
        },
      ),
    ],
    onTap: () {
      print('tap row');
    },
  );

// 找到对应tag与key的row状态，改变状态即可
LeftScrollGlobalListener.instance.targetStatus(tag,key).value = LeftScrollStatus.close;
LSTag("list").of(Key(id)).to(LeftScrollStatus.close)