How does the mini program obtain latitude and longitude information to implement positioning function?

Purpose: Use WeChat applet to obtain longitude and latitude information to achieve simple positioning function.

(Learning video sharing: Programming video)

Create a single page under pages such as local

local.js is as follows

local.wxml is as follows

<view class="page-body">
<view class="page-body-form">
    <text class="page-body-form-key">经度：</text>
    <input class="page-body-form-value" type="text" 
    value="{{longitude}}" name="longitude"></input>
    <text class="page-body-form-key">纬度:</text>
    <input class="page-body-form-value" type="text" 
    value="{{latitude}}" name="latitude"></input>  
    <view class="page-body-buttons">
    <button class="page-body-button" type="primary" 
    bindtap="getLocation">获取位置</button>
    </view>
</view>
</view>

In app.json

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