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Nineoldwidget is a component used to encapsulate the nine palace display of pictures.

flutter_nineold #

九宫格图片列表,支持9+以上数量的显示,支持Hero动画预览图片

Demo #

开始 #

在flutter的项目文件中增加依赖

dependencies:
  ...
    nineold: ^1.3.1

关于如何运行flutter项目, 参考官方文档documentation.

版本更新 #

1.3.1 #

1.图片长按回调图片位置

2.修复图片显示错位bug

1.3.0 #

1.增加查看图片长按事件回调

2.支持自定义加载框,以及更多图片文字样式

1.2.0 #

1.适配屏幕宽高显示

2.支持动态显示9+以上图片

使用方法 #

Import nine_old_widget.dart

import 'package:nineold/widget/nine_old_widget.dart';

简单使用方法

...
class _MyHomePageState extends State<MyHomePage> {
  List<List<String>> images = [];

  int count = 0;

  @override
  void initState() {
    super.initState();
    images.add(getData());
  }

  List<String> getData() {
    List<String> list = [];
    list.add("http://t7.baidu.com/it/u=3616242789,1098670747&fm=79&app=86&f=JPEG?w=900&h=1350");
    list.add("https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=3687862105,320198720&fm=26&gp=0.jpg");
    list.add("https://ss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=339659526,3524437886&fm=26&gp=0.jpg");
    list.add("https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=1492148550,3573121792&fm=11&gp=0.jpg");
    list.add("https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=3059211665,2147448542&fm=26&gp=0.jpg");
    list.add("https://ss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=2333676140,2717071870&fm=11&gp=0.jpg");
    list.add("https://ss1.bdstatic.com/70cFuXSh_Q1YnxGkpoWK1HF6hhy/it/u=2417108265,1198830140&fm=26&gp=0.jpg");
    list.add("https://ss1.bdstatic.com/70cFvXSh_Q1YnxGkpoWK1HF6hhy/it/u=244450851,2728981198&fm=26&gp=0.jpg");
    list.add("https://ss0.bdstatic.com/70cFuHSh_Q1YnxGkpoWK1HF6hhy/it/u=882251069,3759945909&fm=11&gp=0.jpg");
    list.add("https://ss1.bdstatic.com/70cFvXSh_Q1YnxGkpoWK1HF6hhy/it/u=2083759825,3454063564&fm=26&gp=0.jpg");
    list.add("https://ss1.bdstatic.com/70cFvXSh_Q1YnxGkpoWK1HF6hhy/it/u=310077658,2097249993&fm=11&gp=0.jpg");
    list.add("https://ss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=415170272,1239551712&fm=26&gp=0.jpg");
    list.add("https://ss1.bdstatic.com/70cFuXSh_Q1YnxGkpoWK1HF6hhy/it/u=1030558027,1672821388&fm=26&gp=0.jpg");
    list.add("https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=3153722339,140981551&fm=26&gp=0.jpg");
    list.add("https://t8.baidu.com/it/u=3571592872,3353494284&fm=79&app=86&size=h300&n=0&g=4n&f=jpeg?sec=1584605109&t=4c346851d3f4f4cf76439fe6440ffe9f");
    return list;
  }

 @override
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
         title: Text("Flutter Nine Old"),
       ),
       body: Container(
         child: NineOldWidget(
           images: images[count],//必填
           onLongPressListener: (position) {//可选
             //长按事件回调
             print("长按事件回调当前位置 : $position");
           },
           backgroundColor: Colors.white,//可选
           //加载背景颜色
           valueColor: Colors.red,//可选
           //加载进度条颜色
           strokeWidth: 4,//可选
           //加载进度条宽度
           moreStyle: TextStyle(fontSize: 28, color: Colors.orange), //更多加号样式
         ),
       ),
       floatingActionButton: FloatingActionButton(
         child: Icon(Icons.add),
         onPressed: () {
           setState(() {
             count++;
             images.add(getData().sublist(0, count % 15));
           });
         },
       ),
     );
   }
}

NineOldWidget控件构造方法以及参数设置

  NineOldWidget(
      {@required this.images,
      this.moreStyle,
      this.backgroundColor = Colors.white,
      this.strokeWidth = 3,
      this.valueColor = Colors.tealAccent,
      this.onLongPressListener});

使用说明 #

NineOldWidget 是用来封装图片九宫格显示的组件, 方便使用者能更好的使用该插件. 使用者只要需要注入图片集合,集成和Photo_view的Hero动画以及网络图片加载的展位图进度显示,就可以实现图片查看,九宫格列表

致谢 #

timy-messenger

photo_view

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Nineoldwidget is a component used to encapsulate the nine palace display of pictures.

Repository (GitHub)
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License

unknown (LICENSE)

Dependencies

cached_network_image, flutter, photo_view, transparent_image

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