huixiang_app/lib/business_system/goods/goods_search_page.dart

import 'package:flutter/material.dart';
import 'package:huixiang/retrofit/data/findMiNiGroupList.dart';
import 'package:huixiang/utils/font_weight.dart';
import 'package:huixiang/view_widget/classic_header.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';
import '../../view_widget/my_appbar.dart';

class GoodsSearchPage extends StatefulWidget {
  final Map<String, dynamic> arguments;

  GoodsSearchPage({this.arguments});

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

class _GoodsSearchPage extends State<GoodsSearchPage>
    with WidgetsBindingObserver {
  final TextEditingController editingController = TextEditingController();
  final RefreshController refreshController = RefreshController();
  final ScrollController scrollController = ScrollController();
  int optionIndex = 0;
  bool isKeyBoardShow = false;
  List<ProductListBean> productListBeans = [];
  List<String> hotSearch = [];
  List<String> historySearch = [];
  FocusNode _focusNode = FocusNode();
  bool hasFocus = true;
  int priceOrder = 0;

  @override
  void didChangeMetrics() {
    super.didChangeMetrics();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      setState(() {
        print("object: ${MediaQuery.of(context).viewInsets.bottom}");
        if (MediaQuery.of(context).viewInsets.bottom == 0) {
          if (isKeyBoardShow) {
            isKeyBoardShow = false;
            //关闭键盘 软键盘关闭了， 清除输入控件的焦点， 否则重新进入页面会导致软键盘再弹出问题
            FocusScope.of(context).requestFocus(FocusNode());
          }
        } else {
          isKeyBoardShow = true;
        }
      });
    });
  }

  ///离开页面记着销毁和清除
  @override
  void dispose() {
    _focusNode.unfocus();
    super.dispose();
  }

  @override
  void initState() {
    super.initState();
    _focusNode.addListener(() {
      setState(() {
        hasFocus = _focusNode.hasFocus;
      });
    });
  }

  _onRefresh() {
  }

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      behavior: HitTestBehavior.translucent,
      onTap: (){
        FocusScope.of(context).requestFocus(FocusNode());
      },
      child: Scaffold(
        appBar: MyAppBar(
          title: "搜索",
          titleColor: Colors.black,
          leadingColor: Colors.black,
          background: Colors.white,
        ),
        body: Column(
          children: [
            Container(
              color: Colors.white,
              margin: EdgeInsets.only(bottom:16.h),
              child: Container(
                height: 40.h,
                margin: EdgeInsets.only(left: 18.w,right: 18.w,top:17.h,bottom: 10.h),
                decoration: BoxDecoration(
                  color: Color(0xFFF7F8FA),
                  borderRadius: BorderRadius.circular(2),
                ),
                child: TextField(
                  focusNode: _focusNode,
                  textInputAction: TextInputAction.search,
                  onEditingComplete: () {
                    FocusScope.of(context).requestFocus(FocusNode());
                  },
                  style: TextStyle(
                    fontSize: 15.sp,
                    fontWeight: MyFontWeight.regular,
                    color: Color(0xFF808080),
                  ),
                  controller: editingController,
                  decoration: InputDecoration(
                    hintText: "请输入搜索内容",
                    hintStyle: TextStyle(
                        color: Color(0xFF808080),
                        fontSize: 15.sp,
                        fontWeight: MyFontWeight.regular
                    ),
                    prefixIcon: Image.asset(
                      "assets/image/bs_goods_search.webp",
                      width: 20,
                      height: 20,
                    ),
                    border: InputBorder.none,
                  ),
                ),
              ),),
            Expanded(child: Container(
              child: SmartRefresher(
                controller:refreshController,
                enablePullUp: false,
                enablePullDown: true,
                physics: BouncingScrollPhysics(),
                header: MyHeader(),
                onRefresh:(){
                  _onRefresh();
                },
                child:ListView.builder(
                  padding: EdgeInsets.zero,
                  itemCount:5,
                  scrollDirection: Axis.vertical,
                  shrinkWrap: true,
                  physics: NeverScrollableScrollPhysics(),
                  itemBuilder: (context, position) {
                    return GestureDetector(
                      onTap: () {
                      },
                      child: searchGoodsItem(),
                    );
                  },
                ),
              ),
            ),)

          ],
        ),
      ),
    );
  }

  Widget searchGoodsItem(){
    return Container(
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8),
        boxShadow: [
          BoxShadow(
            color: Color(0x0F06152E).withAlpha(12),
            offset: Offset(0, 2),
            blurRadius: 4,
            spreadRadius: 0,
          )
        ],
      ),
      margin: EdgeInsets.only(bottom:12.h,left: 16.w,right: 16.w),
      padding: EdgeInsets.only(left: 12.w,top: 12.h,bottom: 12.h,right:24.w),
      child: Row(
        children: [
          Image.asset(
            "assets/image/hot_list.webp",
            width: 70,
            height: 70,
            fit: BoxFit.fill,
          ),
          SizedBox(width:12.w,),
          Expanded(child:Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Padding(padding:EdgeInsets.only(bottom:11.h,top: 2.h),
                child: Text(
                  "台湾甄选手抓饺子三生",
                  maxLines:1,
                  overflow: TextOverflow.ellipsis,
                  style: TextStyle(
                    fontSize: 14.sp,
                    fontWeight: MyFontWeight.medium,
                    color: Color(0xFF000000),
                  ),
                ),),
              Row(
                children: [
                  Text(
                    "库存4321",
                    style: TextStyle(
                      fontSize: 10.sp,
                      fontWeight: MyFontWeight.regular,
                      color: Color(0xFFA29E9E),
                    ),
                  ),
                  SizedBox(width: 8.w,),
                  Text(
                    "销量4321",
                    style: TextStyle(
                      fontSize: 10.sp,
                      fontWeight: MyFontWeight.regular,
                      color: Color(0xFF999999),
                    ),
                  ),
                ],
              ),
              SizedBox(height:7.h,),
              Row(
                children: [
                  Expanded(child:Text.rich(
                    TextSpan(
                      children: [
                        TextSpan(
                          text: "¥",
                          style: TextStyle(
                            fontSize: 12.sp,
                            fontWeight: MyFontWeight.medium,
                            color: Color(0xFFF4524D),
                          ),
                        ),
                        TextSpan(
                          text: "19",
                          style: TextStyle(
                            fontSize: 14.sp,
                            fontWeight: MyFontWeight.medium,
                            color: Color(0xFFF4524D),
                          ),
                        ),
                      ],
                    ),
                  )),
                  Container(
                    decoration: BoxDecoration(
                      color: Colors.white,
                      borderRadius: BorderRadius.circular(33),
                      border: Border.all(
                        color: Color(0xFF30415B),
                        width: 1,
                      ),
                    ),
                    padding: EdgeInsets.symmetric(vertical: 2.h,horizontal:12.w),
                    child: Text(
                      "下架",
                      style: TextStyle(
                        fontSize: 12.sp,
                        fontWeight: MyFontWeight.regular,
                        color: Color(0xFF30415B),
                      ),
                    ),
                  )
                ],
              )
            ],
          )),
        ],
      ),
    );
  }

}