42 Flutter仿京东商城项目 修改默认收货地址 显示默认收货地址

CheckOut.dart

import 'package:flutter/material.dart';
import '../services/ScreenAdapter.dart';
import 'package:provider/provider.dart';
import '../provider/CheckOut.dart';
import '../services/UserServices.dart';
import '../services/SignServices.dart';

import '../config/Config.dart';
import 'package:dio/dio.dart';

import '../services/EventBus.dart';

class CheckOutPage extends StatefulWidget {
  CheckOutPage({Key key}) : super(key: key);

  _CheckOutPageState createState() => _CheckOutPageState();
}

class _CheckOutPageState extends State<CheckOutPage> {

  List _addressList=[];
  @override
  void initState() {
    super.initState();
    this._getDefaultAddress();

     //监听广播
    eventBus.on<CheckOutEvent>().listen((event) {
      print(event.str);
      this._getDefaultAddress();
    });
  }
 
  _getDefaultAddress() async {
    List userinfo = await UserServices.getUserInfo();

    // print('1234');
    var tempJson = {
      "uid": userinfo[0]["_id"],     
      "salt": userinfo[0]["salt"]
    };

    var sign = SignServices.getSign(tempJson);
   
    var api = '${Config.domain}api/oneAddressList?uid=${userinfo[0]["_id"]}&sign=${sign}';
    var response = await Dio().get(api);

    print(response);
    setState(() {

        this._addressList=response.data['result'];
    });


  }

  Widget _checkOutItem(item) {
    return Row(
      children: <Widget>[
        Container(
           ScreenAdapter.width(160),
          child: Image.network("${item["pic"]}", fit: BoxFit.cover),
        ),
        Expanded(
            flex: 1,
            child: Container(
              padding: EdgeInsets.fromLTRB(10, 10, 10, 5),
              child: Column(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                crossAxisAlignment: CrossAxisAlignment.start,
                children: <Widget>[
                  Text("${item["title"]}", maxLines: 2),
                  Text("${item["selectedAttr"]}", maxLines: 2),
                  Stack(
                    children: <Widget>[
                      Align(
                        alignment: Alignment.centerLeft,
                        child: Text("￥${item["price"]}",
                            style: TextStyle(color: Colors.red)),
                      ),
                      Align(
                        alignment: Alignment.centerRight,
                        child: Text("x${item["count"]}"),
                      )
                    ],
                  )
                ],
              ),
            ))
      ],
    );
  }

  @override
  Widget build(BuildContext context) {
    var checkOutProvider = Provider.of<CheckOut>(context);

    return Scaffold(
      appBar: AppBar(
        title: Text("结算"),
      ),
      body: Stack(
        children: <Widget>[
          ListView(
            children: <Widget>[
              Container(
                color: Colors.white,
                child: Column(
                  children: <Widget>[
                     SizedBox(height: 10),
                    this._addressList.length>0?ListTile(
                      title: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: <Widget>[
                          Text("${this._addressList[0]["name"]}  ${this._addressList[0]["phone"]}"),
                          SizedBox(height: 10),
                          Text("${this._addressList[0]["address"]}"),
                        ],
                      ),
                      trailing: Icon(Icons.navigate_next),
                       onTap: () {
                        Navigator.pushNamed(context, '/addressList');
                      },
                    ):ListTile(
                      leading: Icon(Icons.add_location),
                      title: Center(
                        child: Text("请添加收货地址"),
                      ),
                      trailing: Icon(Icons.navigate_next),
                      onTap: () {
                        Navigator.pushNamed(context, '/addressAdd');
                      },
                    ),
                    SizedBox(height: 10),
                  ],
                ),
              ),
              SizedBox(height: 20),
              Container(
                color: Colors.white,
                padding: EdgeInsets.all(ScreenAdapter.width(20)),
                child: Column(
                    children: checkOutProvider.checkOutListData.map((value) {
                  return Column(
                    children: <Widget>[_checkOutItem(value), Divider()],
                  );
                }).toList()),
              ),
              SizedBox(height: 20),
              Container(
                color: Colors.white,
                padding: EdgeInsets.all(ScreenAdapter.width(20)),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: <Widget>[
                    Text("商品总金额:￥100"),
                    Divider(),
                    Text("立减:￥5"),
                    Divider(),
                    Text("运费:￥0"),
                  ],
                ),
              )
            ],
          ),
          Positioned(
            bottom: 0,
             ScreenAdapter.width(750),
            height: ScreenAdapter.height(100),
            child: Container(
              padding: EdgeInsets.all(5),
               ScreenAdapter.width(750),
              height: ScreenAdapter.height(100),
              decoration: BoxDecoration(
                  color: Colors.white,
                  border:
                      Border(top: BorderSide( 1, color: Colors.black26))),
              child: Stack(
                children: <Widget>[
                  Align(
                    alignment: Alignment.centerLeft,
                    child: Text("总价:￥140", style: TextStyle(color: Colors.red)),
                  ),
                  Align(
                    alignment: Alignment.centerRight,
                    child: RaisedButton(
                      child:
                          Text('立即下单', style: TextStyle(color: Colors.white)),
                      color: Colors.red,
                      onPressed: () {},
                    ),
                  )
                ],
              ),
            ),
          )
        ],
      ),
    );
  }
}

AddressList.dart

import 'package:flutter/material.dart';
import '../../services/ScreenAdapter.dart';

import '../../services/UserServices.dart';
import '../../services/SignServices.dart';

import '../../config/Config.dart';
import 'package:dio/dio.dart';

import '../../services/EventBus.dart';

class AddressListPage extends StatefulWidget {
  AddressListPage({Key key}) : super(key: key);

  _AddressListPageState createState() => _AddressListPageState();
}

class _AddressListPageState extends State<AddressListPage> {
  List addressList = [];

  @override
  void initState() {
    super.initState();
    this._getAddressList();

    //监听增加收货地址的广播
    eventBus.on<AddressEvent>().listen((event) {
      // print(event.str);
      this._getAddressList();
    });
  }
    //监听页面销毁的事件
  dispose(){
    super.dispose();
    eventBus.fire(new CheckOutEvent('改收货地址成功...'));
  }

  //获取收货地址列表
  _getAddressList() async {
    //请求接口
    List userinfo = await UserServices.getUserInfo();

    var tempJson = {"uid": userinfo[0]['_id'], "salt": userinfo[0]["salt"]};

    var sign = SignServices.getSign(tempJson);

    var api =
        '${Config.domain}api/addressList?uid=${userinfo[0]['_id']}&sign=${sign}';

    var response = await Dio().get(api);
    // print(response.data["result"]);

    setState(() {
      this.addressList = response.data["result"];
    });
  }

  //修改默认收货地址
  _changeDefaultAddress(id) async{
    
    List userinfo = await UserServices.getUserInfo();

    var tempJson = {"uid": userinfo[0]['_id'], "id":id,"salt": userinfo[0]["salt"]};

    var sign = SignServices.getSign(tempJson);

    var api =
        '${Config.domain}api/changeDefaultAddress';
    var response = await Dio().post(api,data:{
       "uid": userinfo[0]['_id'],
       "id":id,
       "sign":sign
    });    
    Navigator.pop(context);
    
  }

  //删除收货地址

  _delAddress(id) async{

    List userinfo=await UserServices.getUserInfo();
    var tempJson={
      "uid":userinfo[0]["_id"],
      "id":id,      
      "salt":userinfo[0]["salt"]
    };

    var sign=SignServices.getSign(tempJson);    

    var api = '${Config.domain}api/deleteAddress';
    var response = await Dio().post(api,data:{
          "uid":userinfo[0]["_id"],
          "id":id,                  
          "sign":sign
    });   
    this._getAddressList();   //删除收货地址完成后重新获取列表

  }

  //弹出框
  _showDelAlertDialog(id) async{
     
    var result= await showDialog(
        barrierDismissible:false,   //表示点击灰色背景的时候是否消失弹出框
        context:context,
        builder: (context){
          return AlertDialog(
            title: Text("提示信息!"),
            content:Text("您确定要删除吗?") ,
            actions: <Widget>[
              FlatButton(
                child: Text("取消"),
                onPressed: (){                  
                  Navigator.pop(context);
                },
              ),
              FlatButton(
                child: Text("确定"),
                onPressed: () async{            
                  //执行删除操作
                  this._delAddress(id);
                  Navigator.pop(context);

                },
              )
            ],

          );
        }
     );
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text("收货地址列表"),
        ),
        body: Container(
          child: Stack(
            children: <Widget>[
              ListView.builder(
                itemCount: this.addressList.length,
                itemBuilder: (context, index) {
                  if (this.addressList[index]["default_address"] == 1) {
                    return Column(
                      children: <Widget>[
                        SizedBox(height: 20),
                        ListTile(
                          leading: Icon(Icons.check, color: Colors.red),
                          title: InkWell(
                            child: Column(
                              crossAxisAlignment: CrossAxisAlignment.start,
                              children: <Widget>[
                                Text(
                                    "${this.addressList[index]["name"]}  ${this.addressList[index]["phone"]}"),
                                SizedBox(height: 10),
                                Text("${this.addressList[index]["address"]}"),
                              ]),

                              onTap: (){

                                  this._changeDefaultAddress(this.addressList[index]["_id"]);
                              },
                              onLongPress: (){
                                this._showDelAlertDialog(this.addressList[index]["_id"]);
                              },
                              
                          ),
                          trailing: IconButton(
                            icon:Icon(Icons.edit, color: Colors.blue),
                            onPressed: (){
                                Navigator.pushNamed(context, '/addressEdit',arguments: {
                                    "id":this.addressList[index]["_id"],
                                    "name":this.addressList[index]["name"],
                                    "phone":this.addressList[index]["phone"],
                                    "address":this.addressList[index]["address"],
                                });
                            },
                          ),
                        ),
                        Divider(height: 20),
                      ],
                    );
                  } else {
                    return Column(
                      children: <Widget>[
                        SizedBox(height: 20),
                        ListTile(
                          title:InkWell(
                            child:  Column(
                              crossAxisAlignment: CrossAxisAlignment.start,
                              children: <Widget>[
                                Text(
                                    "${this.addressList[index]["name"]}  ${this.addressList[index]["phone"]}"),
                                SizedBox(height: 10),
                                Text("${this.addressList[index]["address"]}"),
                              ]),
                              onTap: (){
                                this._changeDefaultAddress(this.addressList[index]["_id"]);

                              },
                                onLongPress: (){
                                this._showDelAlertDialog(this.addressList[index]["_id"]);
                              },
                          ),
                           trailing: IconButton(
                            icon:Icon(Icons.edit, color: Colors.blue),
                            onPressed: (){
                                Navigator.pushNamed(context, '/addressEdit',arguments: {
                                    "id":this.addressList[index]["_id"],
                                    "name":this.addressList[index]["name"],
                                    "phone":this.addressList[index]["phone"],
                                    "address":this.addressList[index]["address"],
                                });
                            },
                          ),
                        ),
                        Divider(height: 20),
                      ],
                    );
                  }
                },
              ),
              Positioned(
                bottom: 0,
                 ScreenAdapter.width(750),
                height: ScreenAdapter.height(88),
                child: Container(
                  padding: EdgeInsets.all(5),
                   ScreenAdapter.width(750),
                  height: ScreenAdapter.height(88),
                  decoration: BoxDecoration(
                      color: Colors.red,
                      border: Border(
                          top: BorderSide( 1, color: Colors.black26))),
                  child: InkWell(
                    child: Row(
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: <Widget>[
                        Icon(Icons.add, color: Colors.white),
                        Text("增加收货地址", style: TextStyle(color: Colors.white))
                      ],
                    ),
                    onTap: () {
                      Navigator.pushNamed(context, '/addressAdd');
                    },
                  ),
                ),
              )
            ],
          ),
        ));
  }
}

EventBus.dart

import 'package:event_bus/event_bus.dart';


//Bus 初始化 

EventBus eventBus = EventBus();

//商品详情广播数据
class ProductContentEvent{
  String str;
  ProductContentEvent(String str){
    this.str=str;
  }
}

//用户中心广播
class UserEvent{
  String str;
  UserEvent(String str){
    this.str=str;
  }
}

//收货地址广播
class AddressEvent{
  String str;
  AddressEvent(String str){
    this.str=str;
  }
}

//结算页面
class CheckOutEvent{
  String str;
  CheckOutEvent(String str){
    this.str=str;
  }
}

AddressAdd.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import '../../services/ScreenAdapter.dart';

import '../../widget/JdText.dart';

import '../../widget/JdButton.dart';

import 'package:city_pickers/city_pickers.dart';

import '../../services/UserServices.dart';
import '../../services/SignServices.dart';

import '../../config/Config.dart';
import 'package:dio/dio.dart';

import '../../services/EventBus.dart';

class AddressAddPage extends StatefulWidget {
  AddressAddPage({Key key}) : super(key: key);

  _AddressAddPageState createState() => _AddressAddPageState();
}

class _AddressAddPageState extends State<AddressAddPage> {

  String area='';
  String name='';
  String phone='';
  String address='';

  //监听页面销毁的事件
  dispose(){
    super.dispose();
    eventBus.fire(new AddressEvent('增加成功...'));
    eventBus.fire(new CheckOutEvent('改收货地址成功...'));
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text("增加收货地址"),
        ),
        body: Container(
          padding: EdgeInsets.all(10),
          child: ListView(
            children: <Widget>[
              SizedBox(height: 20),
              JdText(
                text: "收货人姓名",
                onChanged: (value){
                  this.name=value;
                },
              ),
              SizedBox(height: 10),
              JdText(
                text: "收货人电话",
                onChanged: (value){
                  this.phone=value;
                },
              ),
              SizedBox(height: 10),
              Container(
                padding: EdgeInsets.only(left: 5),
                height: ScreenAdapter.height(68),
                decoration: BoxDecoration(
                    border: Border(
                        bottom: BorderSide( 1, color: Colors.black12))),
                child: InkWell(
                  child: Row(
                    children: <Widget>[
                      Icon(Icons.add_location),
                      this.area.length>0?Text('${this.area}', style: TextStyle(color: Colors.black54)):Text('省/市/区', style: TextStyle(color: Colors.black54))
                    ],
                  ),
                  onTap: () async{
                    Result result = await CityPickers.showCityPicker(
                        context: context,
                        cancelWidget:
                            Text("取消", style: TextStyle(color: Colors.blue)),
                        confirmWidget:
                            Text("确定", style: TextStyle(color: Colors.blue))
                    );

                    print(result);
                    setState(() {
                     this.area= "${result.provinceName}/${result.cityName}/${result.areaName}";
                    });
                  },
                ),
              ),
              SizedBox(height: 10),
              JdText(
                text: "详细地址",
                maxLines: 4,
                height: 200,
                onChanged: (value){
                  this.address="${this.area} ${value}";
                },
              ),
              SizedBox(height: 10),
              SizedBox(height: 40),
              JdButton(text: "增加", color: Colors.red,cb: () async{

                  List userinfo=await UserServices.getUserInfo();

                  print(userinfo);


                  // print('1234');
                  var tempJson={
                    "uid":userinfo[0]["_id"],
                    "name":this.name,
                    "phone":this.phone,
                    "address":this.address,
                    "salt":userinfo[0]["salt"]
                  };

                  var sign=SignServices.getSign(tempJson);
                  // print(sign);

                  var api = '${Config.domain}api/addAddress';
                  var result = await Dio().post(api,data:{
                      "uid":userinfo[0]["_id"],
                      "name":this.name,
                      "phone":this.phone,
                      "address":this.address,
                      "sign":sign
                  });                   

                  // if(result.data["success"]){
                   
                  // }
                  Navigator.pop(context);



              })
            ],
          ),
        ));
  }
}