import 'package:flutter/material.dart';

/// create by 张风捷特烈 on 2020/4/27
/// contact me by email 1981462002@qq.com
/// 说明: 

//    {
//      "widgetId": 162,
//      "name": 'ListView横向滑动',
//      "priority": 2,
//      "subtitle":
//          "【scrollDirection】 : 滑动方向   【Axis】\n"
//          "【reverse】 : 是否反向滑动   【bool】\n"
//          "【shrinkWrap】 : 无边界时是否包裹  【bool】",
//    }
class HorizontalListView extends StatelessWidget {
  final data = <Color>[
    Colors.purple[50],
    Colors.purple[100],
    Colors.purple[200],
    Colors.purple[300],
    Colors.purple[400],
    Colors.purple[500],
    Colors.purple[600],
    Colors.purple[700],
    Colors.purple[800],
    Colors.purple[900],
  ];

  @override
  Widget build(BuildContext context) {
    return Container(
      height: 200,
      child: ListView(
        reverse: true,
        shrinkWrap: true,
        scrollDirection: Axis.horizontal,
        children: data
            .map((color) => Container(
          alignment: Alignment.center,
          width: 100,
          height: 50,
          color: color,
          child: Text(
            colorString(color),
            style: TextStyle(color: Colors.white, shadows: [
              Shadow(
                  color: Colors.black,
                  offset: Offset(.5, .5),
                  blurRadius: 2)
            ]),
          ),
        ))
            .toList(),
      ),
    );
  }

  String colorString(Color color) =>
      "#${color.value.toRadixString(16).padLeft(8, '0').toUpperCase()}";
}