微信小程序-天气预报
程序员文章站
2022-07-14 15:42:44
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第一次接触微信小程序,结果发现其实小程序和NodeJs或者是其它的js框架挺类似的。所以现在的话我跟着视频敲了一个天气预报小程序练手,这里的话只是使用到前台代码,没有写后台。效果图如下:
这里的话一共使用到了两个接口,一个是百度的位置接口,另外一个是天气接口。
代码如下:
index.js
//index.js
//获取应用实例
var app = getApp()
Page({
data: {
weekday: ['周日', '周一', '周二', '周三', '周四', '周五', '周六',],
showday: ['今天','明天','']
},
//页面加载完成
onLoad:function(){
var that = this;
var date = new Date();
date.setDate(date.getDate()+2);
this.setData({
'showday[2]':this.data.weekday[date.getDay()]
});
console.log(this.data.showday);
wx.getLocation({
type:"wgs84",
success: function(res) {
var lat = res.latitude;//纬度
var lng = res.longitude;//经度
console.log("lat:"+lat);
console.log("lng:"+lng);
that.getCity(lat,lng);//调用自己写的函数获得城市信息
},
})
},
//获得城市
getCity:function(lat,lng){
var that = this;
var url ="http://api.map.baidu.com/geocoder/v2/";
var param = {
ak:'QgDjg59KnbdsL14plwnoP5rUAGKyDYPe',
location:lat+','+lng,
output:'json'
};
wx.request({
url: url,
data:param,
success:function(res){
console.log(res);
var city = res.data.result.addressComponent.district;
var street = res.data.result.addressComponent.street;
that.setData({
city:city,
street:street
});
//调用自定义函数获取天气信息
that.getWeather(city);
}
})
},
//获取天气信息
getWeather:function(city){
var that = this;
var url = "https://free-api.heweather.com/v5/weather";
var param={
key: '3ac2953e01864ad18f0e0c16d5ab7fa4',
city:city
};
//发出请求
wx.request({
url: url,
data:param,
success:function(res){
console.log(res);
that.setData({
now: res.data.HeWeather5["0"].now,
forecast: res.data.HeWeather5["0"].daily_forecast
});
}
})
}
})
//key3ac2953e01864ad18f0e0c16d5ab7fa4
<!--index.wxml-->
<image class="bg" mode="aspectFill" src="../../img/day.jpg"></image>
<view class="wrapper">
<view class="now">
<view class="now-tmp">
<view class="city">{{city}}</view>
<view class="street">{{street}}</view>
<view class="tmp">{{now.tmp}}°</view>
<view class="type">{{now.cond.txt}} | 空气 良</view>
</view>
<view class="now-exp">
<view class="exp-item">
<view class="">{{now.wind.dir}}</view>
<view class="">{{now.wind.sc}}级</view>
</view>
<view class="item-sp"></view>
<view class="exp-item">
<view class="">相对湿度</view>
<view class="">{{now.hum}}%</view>
</view>
<view class="item-sp"></view>
<view class="exp-item">
<view class="">体感温度</view>
<view class="">{{now.fl}}°</view>
</view>
</view>
</view>
<view class="forecast">
<block wx:for="{{forecast}}" wx:for-item="fc">
<view class="cast-item">
<view class="cast-day">{{showday[index]}}</view>
<view class="cast-type">
<image class="type-img" src="../../img/icons/{{fc.cond.code_d}}.png"></image>
{{fc.cond.txt_d}} | 良
</view>
<view class="cast-tmp">
{{fc.tmp.max}}° / {{fc.tmp.min}}°
</view>
</view>
</block>
</view>
</view>
index.wxss
/**index.wxss**/
.wrapper{
width:100%;
height:100%;
box-sizing: border-box;
position: absolute;
top:0;
left:0;
padding:50rpx;
font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
}
.now{
height:600rpx;
color:#fff;
font-size: 0.85rem;
display: flex;
flex-direction: column;
}
.tmp{
font-size: 4rem;
}
.bg{
height: 700rpx;
width: 750rpx;
}
.now-exp{
display: flex;
flex-direction: row;
justify-content: space-around;
}
.now-tmp{
flex-grow: 1;/*表示剩余的空间都分配给该元素*/
}
.exp-item{
font-size: 1.2rem;
text-align: center;
}
.item-sp{
width:5rpx;
background-color: #fff;
}
.forecast{
margin-top: 50rpx;
}
.type-img{
width:50rpx;
height:50rpx;
vertical-align: middle;
}
.cast-item{
display: flex;
flex-direction: row;
justify-content: space-between;
border-bottom: 1rpx solid #ccc;
padding: 40rpx 0;
}
这个程序还是挺简单的,只要将页面布局出来后,只要在使用js的Page对象里面进行数据的交换就可以了。而且在Page里的data对象中的数据都可以使用{{}}的形式将里面的变量显示出来,非常好用的模板方式,和vuejs有点像。
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