Fiji/ysairplane2/lib/code/YSChooseLocation.dart

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/services.dart';
import 'package:ysairplane2/base/YSBase.dart';
import 'package:ysairplane2/tools/YSNetWorking.dart';
import 'package:ysairplane2/tools/YSTools.dart';

class YSChooseLocation extends StatefulWidget {
  final location;
  const YSChooseLocation({Key key, this.location}) : super(key: key);
  @override
  _YSChooseLocationState createState() => _YSChooseLocationState();
}

class _YSChooseLocationState extends State<YSChooseLocation> {
  MethodChannel _platform;
  String _coordinate = '40,116';
  @override
  Widget build(BuildContext context) {
    return YSBase(
      ystitle: '选择登机地址',
      yschild: Container(
        height: MediaQuery.of(context).size.height-MediaQuery.of(context).padding.top-44,
        width: MediaQuery.of(context).size.width,
        color: Colors.white,
        child: Stack(
          children: [
            platformView(
                platforms: (value){
                  value.setMethodCallHandler((call) {
                    if(call.method == "search"){
                      List array = call.arguments;
                      _showAlert(array);
                    }else if(call.method == "coordinate"){
                      _coordinate = call.arguments;
                      if(widget.location!=null){
                        print(widget.location);
                        Map item = {'lat':widget.location['lat'],'lng':widget.location['lng']
                          ,'title':widget.location['title'],'content':widget.location['content'],'type':0};
                        _platform.invokeMethod('setLocation', item);
                        _coordinate = '${item['lat']},${item['lng']}';
                      }
                    }
                    return;
                  });
                  _platform = value;

                }
            ),
            Container(
              height: hsp(100),
              width: MediaQuery.of(context).size.width-hsp(80),
              margin: EdgeInsets.only(top: hsp(50),left: hsp(40)),
              decoration: BoxDecoration(
                color: Colors.white,
                borderRadius: BorderRadius.all(Radius.circular(5))
              ),
              padding: EdgeInsets.only(left: hsp(10),right: hsp(10)),
              child: CupertinoTextField(
                placeholder: '请输入你要登机的地点',
                style: TextStyle(fontSize: zsp(30),color: Color(0xFF666666)),
                decoration: BoxDecoration(),
                textInputAction: TextInputAction.search,
                onSubmitted: (value){
                  if(value.length>0){
                    _searchLocation(value);
                  }
                },
              ),
            )
          ],
        ),
      )
    );
  }

  _showAlert(List array){
    showModalBottomSheet(
        context: context,
        backgroundColor: Colors.transparent,
        isScrollControlled: true,
        builder: (context){
          return Container(
            height: MediaQuery.of(context).size.height*0.5,
            width: MediaQuery.of(context).size.width,
            decoration: BoxDecoration(
                color: Colors.white,
                borderRadius: BorderRadius.only(topLeft: Radius.circular(10),topRight: Radius.circular(10))
            ),
            child: Column(
              children: [
                Container(
                  height: 39.7,
                  child: Text('选择地址',style: TextStyle(fontSize: zsp(32),color: Colors.black,fontWeight: FontWeight.bold),),
                  alignment: Alignment.center,
                ),
                Divider(height: 0.3,thickness: 0.3,color: Colors.grey,),
                Container(
                  height: MediaQuery.of(context).size.height*0.5-40,
                  child: ListView.separated(
                    itemBuilder: (context,index){
                      return GestureDetector(
                        onTap: (){
                          Navigator.pop(context);
                          Navigator.of(context).pop({'lat': array[index]['lat'],'lng': array[index]['lng'],'title':
                          array[index]['title'],'content': array[index]['content'],'airplaneName':array[index]['title']});
                        },
                        behavior: HitTestBehavior.opaque,
                        child: Container(
                          padding: EdgeInsets.only(left: 15,right: 15,bottom: 5,top: 5),
                          child: Column(
                            crossAxisAlignment: CrossAxisAlignment.start,
                            children: [
                              Container(
                                child: Text('${array[index]['title']}',style: TextStyle(fontSize: zsp(30),color: Colors.black,fontWeight: FontWeight.bold),),
                                margin: EdgeInsets.only(bottom: 5),
                              ),
                              Text('${array[index]['content']}',style: TextStyle(fontSize: zsp(24),color: Color(0xFF999999)),),
                            ],
                          ),
                        ),
                      );
                    },
                    separatorBuilder: (context,index){
                      return Divider(height: 0.3,thickness: 0.3,color: Colors.grey,);
                    },
                    itemCount: array.length,
                  ),
                )
              ],
            ),
          );
        }
    );
  }

  _searchLocation(String searchStr) async{
    FocusScope.of(context).unfocus();
    Map<String, dynamic> httpHeaders = {
      'Accept': 'application/json,*/*',
      'Content-Type': 'application/json',
    };
    Response response = await Dio().get('https://apis.map.qq.com/ws/place/v1/search?keyword=$searchStr&boundary=nearby($_coordinate,10000)&'
        'key=OOZBZ-NHIWS-OCAOO-6VB3W-ROSBH-ZYB7Z',queryParameters: Map<String, dynamic>.from({}),options: Options(receiveTimeout: outTime,headers: httpHeaders));
    Map dict = response.data;
    print('==========object');
    if(dict['status']==0){
      print(dict['data']);
      List array = dict['data'];
      List dataArray = [];
      int count = array.length>20?20:array.length;
      for(int i = 0;i<count;i++){
        Map item = array[i];
        dataArray.add({'title':'${item['title']}','airplaneName':'${item['address']}','content':'${item['address']}'
          ,'lat':'${item['location']['lat']}','lng':'${item['location']['lng']}'});
      }
      _showAlert(dataArray);
    }
  }
}