uniapp在支付宝小程序上无法显示地图，在微信小程序可以正常显示

<template>  
    <view class="container">  
        <map id="map" @regionchange="changeMap"  @updated="onMapFinish" class="map_layout" :latitude="latitude" :longitude="longitude" :markers="markers" @markertap="markertapClick" scale='14'></map>  
        <scroll-view class="content_layout u-flex-col" scroll-y="true" v-if="dataItem != null">  
            <view class="item_layout u-flex-col">  
                <text style="font-size: 36rpx;font-weight: bold;color: #16181A;">{{dataItem.name}}</text>  
                <text style="font-size: 28rpx;font-weight: 400;color: #575F66;margin-top: 10rpx;">{{(dataItem.distance/1000).toFixed(2)}}公里 | {{dataItem.address}}</text>  
            </view>  

            <view class="item_layout u-flex-col" style="margin-top: 20rpx;">  
                <text style="font-size: 36rpx;font-weight: bold;color: #16181A;">停车场概况</text>  
                <view class="u-flex u-flex-align-items u-flex-justify-content-space-between" style="margin-top: 24rpx;">  
                    <view class="u-flex-col u-flex-align-items u-flex-justify-content">  
                        <text style="font-size: 40rpx;font-weight: bold;color: #1890FF;">{{dataItem.num}}</text>  
                        <text style="font-size: 24rpx;font-weight: 400;color: #575F66;margin-top: 8rpx;">总车位数</text>  
                    </view>  
                    <view class="u-flex-col u-flex-align-items u-flex-justify-content">  
                        <text style="font-size: 40rpx;font-weight: bold;color: #1890FF;">{{dataItem.leftnum}}</text>  
                        <text style="font-size: 24rpx;font-weight: 400;color: #575F66;margin-top: 8rpx;">剩余车位</text>  
                    </view>  
                    <view class="u-flex-col u-flex-align-items u-flex-justify-content">  
                        <text style="font-size: 40rpx;font-weight: bold;color: #1890FF;">{{dataItem.price}}</text>  
                        <text style="font-size: 24rpx;font-weight: 400;color: #575F66;margin-top: 8rpx;">{{dataItem.priceunit}}</text>  
                    </view>  
                </view>  
            </view>  
            <view class="item_layout u-flex-col" style="margin-top: 20rpx;">  
                <text style="font-size: 36rpx;font-weight: bold;color: #16181A;">收费描述</text>  
                <text style="font-size: 28rpx;font-weight: 400;color: #575F66;margin-top: 20rpx;">{{dataItem.pricedesc}}</text>  
            </view>  
        </scroll-view>  
    </view>  
</template>  

<script>  
    import gcoord from '@/model/gcoord.js'  
    import {CommonModel} from '@/model/common.js'  
    const commonModel  = new CommonModel()  
    export default {  
        data() {  
            return {  
                title: 'map',  
                latitude: 0,  
                longitude: 0,  
                markers: [],  
                pressedMarker:null,  
                dataList:[],  
                dataItem:null,  
            }  
        },  
        onLoad() {  
            //this.getMyLocation()  
        },  
        methods: {  
            toJSON(){},  
            onMapFinish: function() {    
                console.log('现在可以开始监听@regionchange了');    
            },   
            changeMap(e){  
                let type = '';    
                const { platform } = uni.getSystemInfoSync();    
                console.log(platform)  
                switch (platform) {    
                    case 'android':    
                        type = e.type;    
                        break;    
                    case 'ios':    
                        type = e.detail.type;    
                        break;  
                    default:  
                        type = e.type;    
                        break;  
                }    
                console.log("type:"+type);  
                if (type === 'end') {    
                    // 处理拖拽结束时的逻辑    
                    console.log("结束了");  
                    let mapCtx =uni.createMapContext('map',this);  
                     mapCtx.getCenterLocation({  
                          type: 'gcj02',  
                          success:res=> {  
                            // 当前中心经纬度位置  
                            if(this.latitude != res.latitude || this.longitude !=res.longitude){  
                                console.log("和上次不一样")  
                                this.latitude = res.latitude;  
                                this.longitude =res.longitude;  

                                let result = gcoord.transform(  
                                  [this.longitude, this.latitude],    // 经纬度坐标  
                                  gcoord.GCJ02,               // 当前坐标系  
                                  gcoord.BD09                // 目标坐标系  
                                );  
                                this.getNearbyParkingList(result[0],result[1]);  
                            }  
                          }  
                    })  
                }  
            },  
            markertapClick(e){  
                console.log(e)  
                //点击非当前位置标记时,即停车场marker  
                if(e.detail.markerId != 0){  
                    let index = -1;  
                    let item = null;  

                    if(this.pressedMarker != null){  
                        item = this.pressedMarker;  
                        index = this.pressedMarker.id;  
                        item.width = 42;  
                        item.height = 46;  
                        item.iconPath = '/static/images/icon_parking_normal.png';  
                        //this.$set(this.markers,index,item);//正确方式  
                    }  
                    index = e.detail.markerId;  
                    item = this.markers[index];  
                    item.width = 63;  
                    item.height = 69;  
                    item.iconPath = '/static/images/icon_parking_pressed.png';  
                    //this.$set(this.markers,index,item);//正确方式  

                    this.pressedMarker = item;  
                    this.dataItem = this.dataList[index-1];  
                }  
            },  
            getMyLocation () {  
                uni.getLocation({  
                    // map组件默认为国测局坐标gcj02，调用 uni.getLocation返回结果传递给组件时，需指定 type 为 gcj02   
                    type: 'gcj02',  
                    success: ({ longitude, latitude }) => {  
                        // 定位得到的经纬度  
                        console.log('当前位置的经度：' + longitude)  
                        console.log('当前位置的纬度：' + latitude)  
                        this.longitude = longitude  
                        this.latitude = latitude  

                        let result = gcoord.transform(  
                          [this.longitude, this.latitude],    // 经纬度坐标  
                          gcoord.GCJ02,               // 当前坐标系  
                          gcoord.BD09                // 目标坐标系  
                        );  
                        this.getNearbyParkingList(result[0],result[1]);  
                    }  
                })  
            },  
            getNearbyParkingList(longitude,latitude){  
                let that = this;  
                let para = {  
                    lat:latitude,  
                    lng:longitude,  
                }  
                commonModel.getNearbyParkingList(para).then(res => {  
                    if(res.data){  
                        that.markers = [];  
                        that.markers.push({  
                            id:0,  
                            longitude:that.longitude,  
                            latitude:that.latitude,  
                            iconPath: '/static/images/icon_map_location.png',  
                            width:24,  
                            height:35,  
                        });  
                        that.dataList = res.data.list;  

                        for(var i=0;i<that.dataList.length;i++){  
                            let child = that.dataList[i];  

                            let gc = gcoord.transform(  
                              [child.lng, child.lat],    // 经纬度坐标  
                              gcoord.BD09,               // 当前坐标系  
                              gcoord.GCJ02                // 目标坐标系  
                            );  
                            if(i == 0){  
                                that.dataItem = child;  
                                that.pressedMarker = {  
                                    id:(i+1),  
                                    longitude:gc[0],  
                                    latitude:gc[1],  
                                    iconPath: '/static/images/icon_parking_pressed.png',  
                                    width:63,  
                                    height:69,  
                                }  
                                that.markers.push(that.pressedMarker);  
                            }else{  
                                that.markers.push({  
                                    id:(i+1),  
                                    longitude:gc[0],  
                                    latitude:gc[1],  
                                    iconPath: '/static/images/icon_parking_normal.png',  
                                    width:42,  
                                    height:46,  
                                })  
                            }  
                        }  
                    }else{  
                        uni.showToast({  
                            title: res.msg,  
                            icon: 'none'  
                        })  
                    }  
                })  
            },  
        }  
    }  
</script>  

<style>  
    .item_layout{  
        background-color: #fff;  
        padding: 24rpx;  
    }  
    .content_layout{  
        width: 100%;  
        height: 50vh;  
    }  
    .map_layout{  
        width: 100%;  
        height: 50vh;  
    }  
    .container{  
        width: 100%;  
        min-height: 100%;  
        background-color: #F5F7FA;  
        box-sizing: border-box;  
    }  
</style>