微信小程序 天氣預報開發(fā)實例代碼源碼

data:{
 weatherApikey:'', //天氣apikey，在http://apistore.baidu.com 上申請
 city:'', //城市名稱
 areaid:'', //城市對應的id
 curWd:{}, //當天天氣情況
 indexs:{}, //當天天氣詳情說明
 forecast:{} //未來4天的天氣情況
},
onLoad:function(options){
 // 生命周期函數(shù)--監(jiān)聽頁面加載
 this.setData({weatherApikey:getApp().globalData.weatherApikey});
 this.loadLocation();
},

//獲取當前的位置信息，即經(jīng)緯度
loadLocation: function() {
 var page = this;
 wx.getLocation({
 type: 'gcj02', // 默認為 wgs84 返回 gps 坐標，gcj02 返回可用于 wx.openLocation 的坐標
 success: function(res){
  // success
  var latitude = res.latitude;
  var longitude = res.longitude;

  //獲取城市
  page.loadCity(latitude, longitude);
 }
 })
},

//通過經(jīng)緯度獲取城市
loadCity: function(latitude, longitude) {
 var page = this;
 //這個key是自己在http://apistore.baidu.com上申請的
 var key = "XSWBZ-EVQ3V-UMLPA-U4TP6-6MQFZ-UUFSL";
 var url = "http://apis.map.qq.com/ws/geocoder/v1/?location="+latitude+","+longitude+"&key="+key+"&get_poi=1";
 wx.request({
 url: url,
 data: {},
 method: 'GET', // OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT
 // header: {}, // 設置請求的 header
 success: function(res){
  // success
  var city = res.data.result.address_component.city;
  city = city.replace("市", ""); //將“市”去掉，要不然取不了天氣信息
  page.setData({city: city});
  page.loadId(city);
 }
 })
},

//通過城市名稱獲取城市的唯一ID
loadId: function(city) {
 var page = this;
 var url = "http://apis.baidu.com/apistore/weatherservice/citylist";
 wx.request({
 url: url,
 data: {
  cityname: city
 },
 header: {
  apikey:page.data.weatherApikey
 }, 
 method: 'GET', // OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT
 success: function(res){
  // success
  var cityid = res.data.retData[0].area_id;

  page.setData({areaid: cityid});
  page.loadWeather(city, cityid);
 }
 })
},

//通過城市名稱和城市ID獲取天氣情況
loadWeather: function(city, areaId) {
 var page = this;
 var url = "http://apis.baidu.com/apistore/weatherservice/recentweathers";
 wx.request({
 url: url,
 data: {
  cityname:city,
  cityid: areaId
 },
 header: {
  apikey: page.data.weatherApikey
 },
 method: 'GET', // OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT
 success: function(res){
  // success
  page.setData({curWd : res.data.retData.today, indexs: res.data.retData.today.index, forecast:res.data.retData.forecast});
 }
 })
},

//事件綁定，跳轉到天氣詳情頁面
gotoDetail: function(event) {
// console.log(this.data.areaid+"==在這里跳轉=="+this.data.city);
wx.navigateTo({
 url: '../detail/detail?city='+this.data.city+"&cityid="+this.data.areaid
})
}

<view class="main-container">
 <import src="../templates/today-tpl"/>
 <view bindtap="gotoDetail">
 <template is="today-tpl" data="{{city, curWd}}"/>
 </view>

 <import src="../templates/index-tpl"/>

 <view class="index-content">
  <block wx:for="{{indexs}}" wx:key="item" wx:for-index="idx">
   <template is="index-tpl" data="{{item,idx}}"></template>
  </block>
 </view>

 <import src="../templates/forecast-tpl"/>
 <view class="forecast">
  <block wx:for="{{forecast}}" wx:key="item">
   <template is="forecast-tpl" data="{{item}}"/>
  </block>
 </view>

</view>

<template name="today-tpl">
 <view class="today">
  <view class="city">{{city}}</view>
  <view class="date">{{curWd.date}} {{curWd.week}}</view>

  <view class="temp">{{curWd.curTemp}}</view>
  <view class="weather">{{curWd.type}} {{curWd.lowtemp}}/{{curWd.hightemp}}</view>
  <view class="wd">{{curWd.wd}}</view>
 </view>
</template>