flutterchina/nine_grid_view

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NineGridView

Similar to Weibo dynamics, WeChat circle of friends, nine grid view controls to display pictures. Support single big picture preview.
It also supports WeChat group , DingTalk group, QQ group avatar effects.

DragSortView

Similar to Weibo/WeChat release dynamic picture selection nine grid view. Support press to enlarge effect, drag and drop sorting, drag and drop to a specified location to delete.

Pub

dependencies:
  nine_grid_view: ^2.0.0

Example

import 'package:nine_grid_view/nine_grid_view.dart';

// bigImage param, It is recommended to use a medium-quality picture, because the original picture is too large and takes time to load.
NineGridView(
  margin: EdgeInsets.all(12),
  padding: EdgeInsets.all(5),
  space: 5,
  type: NineGridType.weChat,//NineGridType.weChat, NineGridType.weiBo
  itemCount: itemCount,
  itemBuilder: (BuildContext context, int index) {},
);

// group avatar.
// need width, height param.
NineGridView(
  width: 120,
  height: 120,
  padding: EdgeInsets.all(5),
  space: 5,
  type: NineGridType.qqGp, //NineGridType.weChatGp, NineGridType.dingTalkGp
  itemCount: itemCount,
  itemBuilder: (BuildContext context, int index) {},
);

// It is recommended to use a thumbnail picture，because the original picture is too large, it may cause repeated loading and cause flashing.
DragSortView(
  imageList,
  space: 5,
  margin: EdgeInsets.all(20),
  padding: EdgeInsets.all(0),
  itemBuilder: (BuildContext context, int index) {},
  initBuilder: (BuildContext context) {},
  onDragListener: (MotionEvent event, double itemWidth) {
    /// Judge to drag to the specified position to delete
    /// return true;
    if (event.globalY > 600) {
      return true;
    }
    return false;
  },
);   

Screenshots

https://s1.ax1x.com/2020/08/05/ar88bR.jpg	https://s1.ax1x.com/2020/08/05/arG6OJ.jpg	https://s1.ax1x.com/2020/08/05/artZyF.jpg
https://s1.ax1x.com/2020/08/05/artlJx.jpg	https://s1.ax1x.com/2020/08/05/artJyD.jpg	https://s1.ax1x.com/2020/08/05/art2wj.jpg
https://s1.ax1x.com/2020/08/05/art4f0.jpg	https://s1.ax1x.com/2020/08/05/artIpV.jpg	https://s1.ax1x.com/2020/08/05/artXkR.gif

Changelog

Please see the Changelog page to know what's recently changed.

Others

Another NineGridView in flukit UI Kit，using GridView implementation。But in this project used Stack + Positioned。

App

Moss.
A GitHub client app developed with Flutter, which supports Android iOS Web.
Web ：Flutter Web.

https://z3.ax1x.com/2021/04/26/gp1hm6.jpg	https://z3.ax1x.com/2021/04/26/gp1Tte.jpg	https://z3.ax1x.com/2021/04/26/gp17fH.jpg