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一次微信小程序内地图的使用实战记录

MiaoWu 人气:0

前言   

今天在做新需求的时候发现个很尬的问题:我们项目的小程序是直接输入账号密码进行登录的,不是平常的获得用户授权登录的模式,所以当我使用wx.getLocation一直拉不下来授权一直进fail不去success的时候我开始慌了   

我以为是由于这个登录模式不同导致,然后我就开始疯狂骚扰我的小伙伴,问是不是这种登录模式会拉不到用户授权(在这里感谢我的小伙伴们没打死我,反而认真给我解惑),后来我清了下开发者工具缓存就能拉下来了(在这里求求TX的大佬们再做做开发者工具的优化吧,写原生的真的要流泪了)     

如果觉得上面屁话太多可以不看哈,只要记住:    

 使用输入账号密码和用户授权的登录模式都是可以拉下来授权的(小声bb:其实我感觉平地都能拉授权)

使用

获得经纬度加逆解析得到详细地址

先要有个腾讯地图的key官网:https://lbs.qq.com/

贴上百度经验申请腾讯地图key的链接(比我自己写的详细得多):jingyan.baidu.com/article/656

贴上官网API地址:developers.weixin.qq.com/miniprogram

记得在app.json里面配置: 

 "permission": {
 "scope.userLocation": { "desc": "我们将根据您的定位进行服务分类" } },

参数什么的以官方的为准,以下为具体代码:

var QQMapWX = require('../../../utils/qqmap-wx-jssdk.js');
const { request } = require("../../../utils/util");
var qqmapsdk
//onload里面写的:
 // 实例化腾讯地图API核心类
 qqmapsdk = new QQMapWX({
 key: '###MiaoWu~###'//这个去腾讯地图申请
 });
 // 获取用户的实时位置 getAddress() {
 var that = this;
 //1、获取当前位置坐标
 wx.getLocation({
  type: 'wgs84',
  success: function (res) {
  //2、根据坐标获取当前位置名称,显示在顶部:腾讯地图逆地址解析
  qqmapsdk.reverseGeocoder({
   location: {
   latitude: res.latitude,
   longitude: res.longitude
   },
   success: function (addressRes) {
   // 显示位置
   var address = addressRes.result.formatted_addresses.recommend;
   console.log(address);
   that.setData({ 
    latitude: res.latitude, 
    longitude: res.longitude,
    addressNow: address
   })
   }
  })
  },
  fail: function () {
  console.log("调取失败")
  }
 })
 },

画地图并获得经纬度以及详细地址

方法和上面写的相差无几,就是多了点wxml的东西

官方map地址:developers.weixin.qq.com/miniprogram

<map id="map" longitude="{{longitude}}" latitude="{{latitude}}" 
 scale="14" show-scale show-location style="width: 100%; height: 100vh;"> 
 <cover-view class="dosomething fr"> 
 <cover-image class="img" src="/assets/icon/refresh.png" bindtap="toRefresh"></cover-image>
  <cover-image class="img" src="/assets/icon/goSelf.png" bindtap="toRefresh"></cover-image>
 </cover-view>
 <cover-view class="sureLocation" bindtap="sureLocation">确定</cover-view>
</map>

业务需求不能让用户搜索以及选点,只能看自己所在位置,再加上开发者工具上暂不支持比例尺,所以这个图就当看着意思意思(还有开发者工具上定位贼不准,都给我整到区政府去了,各位在用的时候还是看自己手机调吧)

最后贴上逆解析文件qqmap-wx-jssdk.js的代码:

(不是我写的哈,我只是大佬的搬运工QAQ)

/** * 微信小程序JavaScriptSDK *
 * @version 1.0
 * @date 2017-01-10 
* @author jaysonzhou@tencent.com
 */
var ERROR_CONF = {
 KEY_ERR: 311,
 KEY_ERR_MSG: 'key格式错误',
 PARAM_ERR: 310,
 PARAM_ERR_MSG: '请求参数信息有误',
 SYSTEM_ERR: 600,
 SYSTEM_ERR_MSG: '系统错误',
 WX_ERR_CODE: 1000,
 WX_OK_CODE: 200};var BASE_URL = 'https://apis.map.qq.com/ws/';
var URL_SEARCH = BASE_URL + 'place/v1/search';var URL_SUGGESTION = BASE_URL + 'place/v1/suggestion';var URL_GET_GEOCODER = BASE_URL + 'geocoder/v1/';var URL_CITY_LIST = BASE_URL + 'district/v1/list';
var URL_AREA_LIST = BASE_URL + 'district/v1/getchildren';
var URL_DISTANCE = BASE_URL + 'distance/v1/';
var Utils = {
 /**
  * 得到终点query字符串 
 * @param {Array|String} 检索数据
  */
 location2query(data) {
  if (typeof data == 'string') {
   return data; 
  }
  var query = '';
  for (var i = 0; i < data.length; i++) {
   var d = data[i];
   if (!!query) { 
    query += ';';
   }
   if (d.location) {
    query = query + d.location.lat + ',' + d.location.lng;
   }
   if (d.latitude && d.longitude) {
    query = query + d.latitude + ',' + d.longitude;
   }
  }
  return query;
 },
 /**
  * 使用微信接口进行定位
  */ 
 getWXLocation(success, fail, complete) {
  wx.getLocation({
   type: 'gcj02',
   success: success,
   fail: fail, 
   complete: complete 
  });
 },
 /**
  * 获取location参数
  */ 
 getLocationParam(location) {
  if (typeof location == 'string') {
   var locationArr = location.split(',');
   if (locationArr.length === 2) {
    location = {
     latitude: location.split(',')[0], 
     longitude: location.split(',')[1] 
    }; 
   } else {
    location = {};
   }
  } 
  return location;
 },
 /**
  * 回调函数默认处理
  */
 polyfillParam(param) {
  param.success = param.success || function () { };
  param.fail = param.fail || function () { };
  param.complete = param.complete || function () { };
 },
 /** 
 * 验证param对应的key值是否为空
  *
  * @param {Object} param 接口参数 
 * @param {String} key 对应参数的key
  */
 checkParamKeyEmpty(param, key) {
  if (!param[key]) {
   var errconf = this.buildErrorConfig(ERROR_CONF.PARAM_ERR, ERROR_CONF.PARAM_ERR_MSG + key +'参数格式有误');
   param.fail(errconf);
   param.complete(errconf);
   return true;
  }
  return false;
 },
 /**
  * 验证参数中是否存在检索词keyword
  *
  * @param {Object} param 接口参数
  */
 checkKeyword(param){
  return !this.checkParamKeyEmpty(param, 'keyword');
 },
 /**
  * 验证location值
  *
  * @param {Object} param 接口参数
  */
 checkLocation(param) {
  var location = this.getLocationParam(param.location);
  if (!location || !location.latitude || !location.longitude) {
   var errconf = this.buildErrorConfig(ERROR_CONF.PARAM_ERR, ERROR_CONF.PARAM_ERR_MSG + ' location参数格式有误')
   param.fail(errconf);
   param.complete(errconf);
   return false;
  }
  return true;
 },
 /**
  * 构造错误数据结构
  * @param {Number} errCode 错误码
  * @param {Number} errMsg 错误描述
  */
 buildErrorConfig(errCode, errMsg) { 
  return {
   status: errCode, 
   message: errMsg 
  };
 },
 /**
  * 构造微信请求参数,公共属性处理
  *
  * @param {Object} param 接口参数
  * @param {Object} param 配置项
  */
 buildWxRequestConfig(param, options) {
  var that = this;
  options.header = { "content-type": "application/json" };
  options.method = 'GET';
  options.success = function (res) {
   var data = res.data;
   if (data.status === 0) {
    param.success(data);
   } else {
    param.fail(data);
   }
  };
  options.fail = function (res) {
   res.statusCode = ERROR_CONF.WX_ERR_CODE;
   param.fail(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, result.errMsg)); 
  };
  options.complete = function (res) {
   var statusCode = +res.statusCode;
   switch(statusCode) {
    case ERROR_CONF.WX_ERR_CODE: {
     param.complete(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg)); 
     break;
    }
    case ERROR_CONF.WX_OK_CODE: { 
     var data = res.data;
     if (data.status === 0) { 
      param.complete(data); 
     } else { 
      param.complete(that.buildErrorConfig(data.status, data.message));
     }
     break;
    }
    default:{
     param.complete(that.buildErrorConfig(ERROR_CONF.SYSTEM_ERR, ERROR_CONF.SYSTEM_ERR_MSG));
    } 
   }
  }
  return options;
 },
 /**
  * 处理用户参数是否传入坐标进行不同的处理 
 */ 
 locationProcess(param, locationsuccess, locationfail, locationcomplete) {
  var that = this;
  locationfail = locationfail || function (res) { 
   res.statusCode = ERROR_CONF.WX_ERR_CODE;
   param.fail(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
  };
  locationcomplete = locationcomplete || function (res) {
   if (res.statusCode == ERROR_CONF.WX_ERR_CODE) { 
    param.complete(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
   }
  };
  if (!param.location) { 
   that.getWXLocation(locationsuccess, locationfail, locationcomplete); 
  } else if (that.checkLocation(param)) { 
   var location = Utils.getLocationParam(param.location); 
   locationsuccess(location);
  }
 }}class QQMapWX {
 /**
  * 构造函数 
  *
  * @param {Object} options 接口参数,key 为必选参数
  */
 constructor(options) {
  if (!options.key) {
   throw Error('key值不能为空');
  }
  this.key = options.key;
 }
 /**
  * POI周边检索
  *
  * @param {Object} options 接口参数对象
  * 
  * 参数对象结构可以参考
  * @see http://lbs.qq.com/webservice_v1/guide-search.html
  */
 search(options) {
  var that = this; 
  options = options || {}; 
  Utils.polyfillParam(options);
  if (!Utils.checkKeyword(options)) { 
   return;
  }
  var requestParam = {
   keyword: options.keyword,
   orderby: options.orderby || '_distance',
   page_size: options.page_size || 10,
   page_index: options.page_index || 1,
   output: 'json',
   key: that.key
  };
  if (options.address_format) {
   requestParam.address_format = options.address_format;
  }
  if (options.filter) { 
   requestParam.filter = options.filter;
  }
  var distance = options.distance || "1000";
  var auto_extend = options.auto_extend || 1; 
  var locationsuccess = function (result) {
   requestParam.boundary = "nearby(" + result.latitude + "," + result.longitude + "," + distance + "," + auto_extend +")";
   wx.request(Utils.buildWxRequestConfig(options, {
    url: URL_SEARCH,
    data: requestParam
   }));
  }
  Utils.locationProcess(options, locationsuccess);
 }
 /** 
 * sug模糊检索
  * 
 * @param {Object} options 接口参数对象
  *
  * 参数对象结构可以参考
  * http://lbs.qq.com/webservice_v1/guide-suggestion.html
  */
 getSuggestion(options) {
  var that = this; 
  options = options || {};
  Utils.polyfillParam(options);
  if (!Utils.checkKeyword(options)) {
   return;
  }
  var requestParam = {
   keyword: options.keyword,
   region: options.region || '全国',
   region_fix: options.region_fix || 0,
   policy: options.policy || 0, 
   output: 'json',
   key: that.key 
  };
  wx.request(Utils.buildWxRequestConfig(options, { 
   url: URL_SUGGESTION, 
   data: requestParam 
  }));
 }
 /**
  * 逆地址解析
  *
  * @param {Object} options 接口参数对象 
 *
  * 请求参数结构可以参考
  * http://lbs.qq.com/webservice_v1/guide-gcoder.html
  */
 reverseGeocoder(options) {
  var that = this; 
  options = options || {};
  Utils.polyfillParam(options);
  var requestParam = {
   coord_type: options.coord_type || 5,
   get_poi: options.get_poi || 0, 
   output: 'json',
   key: that.key
  };
  if (options.poi_options) {
   requestParam.poi_options = options.poi_options
  }
  var locationsuccess = function (result) {
   requestParam.location = result.latitude + ',' + result.longitude;
   wx.request(Utils.buildWxRequestConfig(options, {
    url: URL_GET_GEOCODER,
    data: requestParam
   }));
  };
  Utils.locationProcess(options, locationsuccess);
 }
 /**
  * 地址解析
  *
  * @param {Object} options 接口参数对象
  *
  * 请求参数结构可以参考
  * http://lbs.qq.com/webservice_v1/guide-geocoder.html
  */
 geocoder(options) {
  var that = this;
  options = options || {};
  Utils.polyfillParam(options);
  if (Utils.checkParamKeyEmpty(options, 'address')) {
   return;
  }
  var requestParam = {
   address: options.address,
   output: 'json',
   key: that.key
  };
  wx.request(Utils.buildWxRequestConfig(options, {
   url: URL_GET_GEOCODER, 
   data: requestParam
  }));
 }
 /**
  * 获取城市列表
  *
  * @param {Object} options 接口参数对象
  *
  * 请求参数结构可以参考
  * http://lbs.qq.com/webservice_v1/guide-region.html
  */
 getCityList(options) {
  var that = this;
  options = options || {}; 
  Utils.polyfillParam(options);
  var requestParam = { 
   output: 'json', 
   key: that.key 
  };
  wx.request(Utils.buildWxRequestConfig(options, {
   url: URL_CITY_LIST,
   data: requestParam
  }));
 }
 /**
  * 获取对应城市ID的区县列表
  *
  * @param {Object} options 接口参数对象
  * 
  * 请求参数结构可以参考
  * http://lbs.qq.com/webservice_v1/guide-region.html
  */
 getDistrictByCityId(options) {
  var that = this;
  options = options || {};
  Utils.polyfillParam(options);
  if (Utils.checkParamKeyEmpty(options, 'id')) {
   return;
  }
  var requestParam = {
   id: options.id || '',
   output: 'json',
   key: that.key
  };
  wx.request(Utils.buildWxRequestConfig(options, {
   url: URL_AREA_LIST,
   data: requestParam
  }));
 }
 /**
  * 用于单起点到多终点的路线距离(非直线距离)计算:
  * 支持两种距离计算方式:步行和驾车。
  * 起点到终点最大限制直线距离10公里。
  * 
  * @param {Object} options 接口参数对象
  * 
  * 请求参数结构可以参考
  * http://lbs.qq.com/webservice_v1/guide-distance.html
  */
 calculateDistance(options) {
  var that = this;
  options = options || {};
  Utils.polyfillParam(options);
  if (Utils.checkParamKeyEmpty(options, 'to')) {
   return;
  } 
  var requestParam = {
   mode: options.mode || 'walking',
   to: Utils.location2query(options.to),
   output: 'json',
   key: that.key
  }; 
  var locationsuccess = function (result) {
   requestParam.from = result.latitude + ',' + result.longitude;
   wx.request(Utils.buildWxRequestConfig(options, {
    url: URL_DISTANCE,
    data: requestParam 
   }));
  }
  if (options.from) {
   options.location = options.from;
  }
    Utils.locationProcess(options, locationsuccess);
 }}
module.exports = QQMapWX;

总感觉还有啥没写,但又想不起来了,回头记起来补吧

实话感觉自己写的这个没什么技术含量,就当给自己的一个总结,所以求各位轻喷

使用如果有问题的话就在评论区滴滴,我会的都跟你说啾咪,就这样啦~

总结

以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作具有一定的参考学习价值,谢谢大家对的支持。

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