02 - 微信小程序实例开发 - 天气情况

实例主要功能

先看效果图

思路及编码部份

wx.getLocation

wx.getLocation

.js

data:{
weatherApikey:'', //天气apikey，在http://apistore.baidu.com 上申请
city:'', //城市名称
areaid:'', //城市对应的id
curWd:{}, //当天天气情况
indexs:{}, //当天天气详情说明
forecast:{} //未来4天的天气情况
},
onLoad:function(options){
// 生命周期函数--监听页面加载
this.setData({weatherApikey:getApp().globalData.weatherApikey});
this.loadLocation();
},

//获取当前的位置信息，即经纬度
loadLocation: function() {
var page = this;
wx.getLocation({
type: 'gcj02', // 默认为 wgs84 返回 gps 坐标，gcj02 返回可用于 wx.openLocation 的坐标
success: function(res){
// success
var latitude = res.latitude;
var longitude = res.longitude;

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

//通过经纬度获取城市
loadCity: function(latitude, longitude) {
var page = this;
//这个key是自己在http://apistore.baidu.com上申请的
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: {}, // 设置请求的 header
success: function(res){
// success
var city = res.data.result.address_component.city;
city = city.replace("市", ""); //将“市”去掉，要不然取不了天气信息
page.setData({city: city});
page.loadId(city);
}
})
},

//通过城市名称获取城市的唯一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);
}
})
},

//通过城市名称和城市ID获取天气情况
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});
}
})
},

//事件绑定，跳转到天气详情页面
gotoDetail: function(event) {
// console.log(this.data.areaid+"==在这里跳转=="+this.data.city);
wx.navigateTo({
url: '../detail/detail?city='+this.data.city+"&cityid="+this.data.areaid
})
}

page.setData

this.setData

data

wx.navigateTo

wx.request

wx.getLocation

AngularJS

index.wxml

<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>

view

block

template

import

{{}}

wx:for

wxml

<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>