drag_anim

Description:

drag anim

drag_anim #
注意事项

自动检测位置变化进行位移动画，需要widget不会被重新创建根据情况添加key
如果滑动组件在buildItems下则可以嵌套DragAnimNotification也可以设置isDragAnimNotification = true
DragAnim 不是滑动组件的子widget的时候需要传scrollController，不然无法到边缘自动滚动
理论支持各种widget，例子是用flutter_staggered_grid_view 进行测试
注意需要widget不会被销毁，重新创建

dependencies:
...
drag_anim: <latest_version>
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@override
Widget build(BuildContext context) {
return DragAnimNotification(
child: Center(
child: Container(
alignment: Alignment.centerLeft,
height: 468,
child: ListView(
physics: const BouncingScrollPhysics(),
scrollDirection: Axis.horizontal,
children: <Widget>[
DragAnim<HomeEditCard>(
scrollDirection: Axis.horizontal,
buildItems: (List<Widget> children) {
return StaggeredGrid.count(
crossAxisCount: 4,
mainAxisSpacing: 15,
crossAxisSpacing: 15,
children: children,
);
},
items: (HomeEditCard element, DragItems dragItems) {
return StaggeredGridTile.count(
key: ValueKey<String>(element.key ?? ''),
mainAxisCellCount: element.mainAxisCellCount,
crossAxisCellCount: element.crossAxisCellCount,
child: dragItems(Container(
color: Colors.yellow.withOpacity(0.3),
)),
);
},
buildFeedback: (HomeEditCard data, Widget widget) {
return Container(
width: 250,
height: 250,
color: Colors.red,
);
},
dataList: list,
),
],
),
),
),
);
}
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