uniapp接入腾讯地图实现定位导航功能。

打开腾讯地图的官网注册账号登陆进入，滑入我的头像开发者信息：https://lbs.qq.com/service/webService/webServiceGuide/webServiceOverview

2 找到添加的应用，添加key

3 webService API 查询

4 然后在manifest.json 中设置如下，以及小程序id

uniapp用到的api

uni.getLocation 获取当前的地理位置、速度。当用户离开小程序后，此接口无法调用。


uni.openLocation 使用微信内置地图查看位置


this.mapDom = uni.createMapContext('mapDom') 获取map id=mapDom 的实例


this.mapDom.includePoints includePoints 缩放视野展示所有经纬度

bug uni.getLocation 不触发直接将基础库调整为 2.17.0

首页代码

<template>
    <view class="">
        <div class="header">
            <view class="content">
                你要去哪里：
                 <view class="text-area">
                    <text @click="toMap()" class="title">{
    {title}}</text>
                   </view>
            </view>
            
             <input @input="changeCity" v-model="city" type="text" height="50" />
            <ul v-show="isShowSearch">
                <li @click="getCityHandle(item.address)" v-for="item in suggestionData" :key="item.id">{
    {item.address}}</li>
            </ul>
        </div>
        
    </view>

</template>

<script>
    import {
        Debounce
    } from '../../utils/debounce.js'

    export default {
        data() {
            return {
                title: '出发',
                key: '2J4BZ-3CFEV-OYSPG-UDFGU-ONNNS-63FOT',
                city: '河南省鹤壁市浚县',
                locationConfig: null,
                noClick: true,
                suggestionData: null,
                isShowSearch:false
            }
        },
        onLoad() {},
        methods: {
            toMap() {

                this.getPosition((location) => {
                    uni.navigateTo({
                        url: `/pages/map/index?lat=${ location.lat}&lng=${ location.lng}&city=${this.city}`
                    })
                })
            },
            getPosition(callback) {
                uni.request({
                    url: `https://apis.map.qq.com/ws/geocoder/v1/?address=${this.city}&key=${this.key}`,
                    success: ({
                        data
                    }) => {
                        callback(data.result.location)
                    },
                })
            },
            getCityHandle(val) {
                this.city = val
                this.isShowSearch = false
            },
            changeCity: Debounce(function(e) {
                this.isShowSearch = true
                console.log(432);
                this.city = e.target.value
                uni.request({
                    url: `https://apis.map.qq.com/ws/place/v1/suggestion?key=${this.key}&keyword=${this.city}`,
                    success: ({
                        data
                    }) => {
                        console.log(423, data.data);
                        this.suggestionData = data.data
                    },
                })

            }, 1000)
        }
    }
</script>

<style>
    ul {
        height: auto;
            width: 90%;
        overflow: scroll;
    }

    ul li {
        margin: 2px;
        width: 100%;
        height: auto;
        border-radius: 10upx;
        background-color: #ccc;
        padding: 10upx;
        box-sizing: border-box;
    }

    .content {
        display: flex;
        margin-bottom: 20upx;
    }

    .logo {
        height: 200rpx;
        width: 200rpx;
        margin-top: 200rpx;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 50rpx;
    }

    .text-area {
        display: flex;
        justify-content: center;
        border: 1px solid #ccc;
        width: 30%;
            border-radius: 10upx;
    }

    .title {
        font-size: 36rpx;
        color: #8f8f94;
    }

    .header {
        width: 100%;
        height: 30upx;
        padding: 30upx;

    }

    .header input {
            width: 90%;
        border: 1px solid #ccc;
        border-radius: 10upx;
    }
</style>

地图页面

<template>
    <view class="">
        <view class="page-body">
            <view class="page-section page-section-gap">
                <map style="width: 100%; height: 75vh;" 
                 id="mapDom"
                 show-location 
                 :latitude="latitude" 
                 :longitude="longitude" 
                 :markers="covers"
                 show-location
                 @updated="lodingMap"
                 >
                </map>
                <div @click="backPositionHandle" class="positionIcon"></div>
            </view>
        </view>
        <view class="footer">
            <h3>你的目的地</h3>
            <view class="descriptive">{
    {city}}</view>
            <button class="position" @click="getHereHandle">到这里</button>
        </view>
    </view>

</template>

<script>
    export default {
        data() {
            return {
                latitude: 0,
                longitude: 0,
                covers: [{
                    id: 1,
                    width: 50,
                    height: 50,
                    latitude: 0,
                    longitude: 0,
                    iconPath: '../../static/1.gif'
                }, ],
                city:'',
                flag:false
            }
        },
        onReady() {
            this.mapDom = uni.createMapContext('mapDom')
            console.log(423,this.mapDom);
        },
        onLoad(option) {
            this.covers[0].latitude = Number(option.lat)
            this.covers[0].longitude = Number(option.lng)
            this.city = option.city
            //  uni.getLocation 不触发直接将基础库调整为 2.17.0
            uni.getLocation({
                type: 'gcj02',
                success: (res) => {
                    console.log('当前位置的经度：' + res.longitude);
                    console.log('当前位置的纬度：' + res.latitude);
                    this.latitude = Number(res.latitude)
                    this.longitude = Number(res.longitude)
                    // 获取位置成功之后进行缩放，直观的看到坐标
                    // includePoints 缩放视野展示所有经纬度
                    this.mapDom.includePoints({
                        padding:[140,50,140,50],
                        points:[
                            //第一个是我的位置
                            {
                                latitude:this.latitude,
                                longitude:this.longitude
                            },
                            // 第二个是店铺的位置
                            {
                                latitude:this.covers[0].latitude,
                                longitude:this.covers[0].longitude
                            }
                        ]
                    })
                }
            });
        },
        methods:{
            // 地图初始化完成后触发
            lodingMap() {
                console.log(423);
                this.flag = true
            },
            getHereHandle() {
                if(!this.flag) return
                // let plugin = requirePlugin('routePlan');
                // let key = '2J4BZ-3CFEV-OYSPG-UDFGU-ONNNS-63FOT';  //使用在腾讯位置服务申请的key
                // let referer = 'navigateMap';   //调用插件的app的名称
                // let endPoint = JSON.stringify({  //终点
                //   'name': '北京西站',
                //   'latitude': 39.894806,
                //   'longitude': 116.321592
                // });
                // wx.navigateTo({
                //   url: 'plugin://routePlan/index?key=' + key + '&referer=' + referer + '&endPoint=' + endPoint
                // });
                uni.openLocation({
                      latitude:this.covers[0].latitude,    //维度
                      longitude: this.covers[0].longitude, //经度
                      name: this.city,    //目的地定位名称
                      scale: 15,    //缩放比例
                      // address: "河南省鹤壁市浚县"    //导航详细地址
                    })
        
            },
            backPositionHandle() {
                if(!this.flag) return
                this.mapDom.moveToLocation();
            }
        }
    }
</script>

<style>
    .page-section-gap {
        position: relative;
    }
    .footer{
        width: 100%;
        height: 25vh;
        background-color: #fff;
        box-sizing: border-box;
        padding: 20upx  40upx 0 40upx;
        display: flex;
        flex-direction: column;
        border-radius: 22upx;
    }
    .position{
        height: 90upx;
        line-height:90upx;
        background-color: #3d89f0;
        color: #fff;
        width: 100%;
    }
    .descriptive{
        font-size: 30upx;
        margin: 30upx 0 30upx 0;
    }
    .positionIcon {
        width: 40upx;
        height: 40upx;
        border-radius: 50%;
        position: absolute;
        bottom: 40upx;
        right: 40upx;
        background-image: url('https://tse2-mm.cn.bing.net/th/id/OIP-C.fCPxTGJccQvVdqrNFqrMRwHaHa?pid=ImgDet&rs=1');
        background-size: 100% 100%;
    }
</style>

/utils/debounce.js 防抖方法

export  const Debounce = (fn, wait) => {
    let delay = wait|| 500
    let timer
    return function () {
        let args = arguments;
        if (timer) {
            clearTimeout(timer)
        }
       
        let callNow = !timer
        timer = setTimeout(() => {
            timer = null
        }, delay)
        if (callNow) fn.apply(this, args)
    }
}