huixiang_app/lib/home/points_mall_view/points_goods_title.dart

import 'package:flutter/material.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:huixiang/retrofit/data/goods_category.dart';
import 'package:huixiang/utils/font_weight.dart';
import 'package:huixiang/view_widget/item_title.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';

class PointsGoodsTitle extends StatefulWidget {
  final ValueChanged<int> onTap;
  final Function(int orderType, bool orderDesc) sortChange;
  final List<GoodsCategory> gooodsCategorys;

  PointsGoodsTitle(this.gooodsCategorys, this.sortChange, this.onTap);

  @override
  State<StatefulWidget> createState() {
    return _PointsGoodsTitle();
  }
}

class _PointsGoodsTitle extends State<PointsGoodsTitle> {

  var _itemText = S.current.morenpaixu;
  List<String> sortString = [
    S.current.morenpaixu,
    S.current.jifengaodaodi,
    S.current.jifendidaogao,
  ];

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        ItemTitle(
          text: S.of(context).jifenshangcheng,
          imgPath: "assets/image/icon_points_mall.png",
          moreText: _itemText,
          moreType: 1,
          items: sortString
              .map(
                (e) => DropdownMenuItem(
                  value: e,
                  child: Text(
                    e,
                    style: TextStyle(
                      fontSize: 12.sp,
                      fontWeight: MyFontWeight.medium,
                      color: Color(0xff353535),
                    ),
                  ),
                ),
              )
              .toList(),
          onChanged: _sortChange,
        ),
        Container(
          alignment: Alignment.centerLeft,
          child: DefaultTabController(
            length: widget.gooodsCategorys == null
                ? 0
                : widget.gooodsCategorys.length,
            child: TabBar(
              isScrollable: true,
              //可滚动
              indicatorColor: Color(0xff39B54A),
              labelColor: Color(0xff32A060),
              labelStyle: TextStyle(
                fontSize: 14.sp,
                fontWeight: FontWeight.bold,
              ),
              unselectedLabelStyle: TextStyle(
                fontSize: 14.sp,
                fontWeight: MyFontWeight.regular,
              ),
              // controller: tabController,
              //未选中文字颜色
              unselectedLabelColor: Color(0xff4D4D4D),
              indicatorSize: TabBarIndicatorSize.label,
              //指示器与文字等宽
              tabs: widget.gooodsCategorys == null
                  ? []
                  : widget.gooodsCategorys
                      .map((e) => Tab(text: e.name))
                      .toList(),
              onTap: widget.onTap,
            ),
          ),
        ),
      ],
    );
  }

  _sortChange(item) {
    var index = sortString.indexOf(item);
    switch (index) {
      case 0:
        widget.sortChange(1, true);
        break;
      case 1:
        widget.sortChange(3, true);
        break;
      case 2:
        widget.sortChange(3, false);
        break;
    }
    setState(() {
      _itemText = item;
    });
  }

}