/**
 * 发起网络请求
 * @param {string} url 
 * @param {object} params 
 * @return {Promise} 
 */
 static request(url, params, method = "GET", type = "json") {
 console.log("向后端传递的参数", params);
 return new Promise((resolve, reject) => {
  let opts = {
  url: url,
  data: Object.assign({}, params),
  method: method,
  header: { 'Content-Type': type },
  success: resolve,
  fail: reject
  }
  // console.log("请求的URL", opts.url);
  wx.request(opts);
 });
 };
 /**
 * 获取用户中心位置经纬度
 * @param {ctx} name 
 */
 static getCenterLocation(name) {
 return new Promise((resolve, reject) => name.getCenterLocation({ success: resolve, fail: reject }));
 }

let app = getApp();
let wechat = require("../../utils/wechat");
Page({
 onReady(e) {
 let mapCtx = wx.createMapContext('myMap');
 setTimeout(() => {
  mapCtx.moveToLocation();
 }, 1000);
 setTimeout(() => {
  this.getAddress(mapCtx);
 }, 2000);
 },
 getAddress(mapCtx) {
 wechat.getCenterLocation(mapCtx)
  .then(d => {
  console.log(d);
  let { latitude, longitude } = d;
  console.log("当前位置纬度", latitude, "当前位置经度", longitude);
  let url = `https://apis.map.qq.com/ws/geocoder/v1/`;
  let key = 'XXXXX-D6FAD-RSG4U-HBE6F-NVFNK-XXXXX';
  let params = {
   location: latitude + "," + longitude,
   key
  }
  return wechat.request(url, params);
  })
  .then(d => {
  console.log(d);
  console.log("当前地址", d.data.result.address);
  })
  .catch(e => {
  console.log(e);
  })
 }
 
})

<map id="myMap" show-location="true" scale="16" />

page{
 height: 100%;
}
#myMap{
 width: 100%;
 height: 100%;
}