微信小程序使用地图选择用户位置

小程序使用内置地图选择位置后返回至地址管理页面。
address

<view>
    <view>
        <button bindtap="chooseLocation" type="primary">选择位置</button>
        <view wx-if="{{addressInfo}}">
            <text>{{addressInfo.name}}</text>
            <text>{{addressInfo.address}}</text>
            <text>{{addressInfo.latitude}}</text>
            <text>{{addressInfo.longitude}}</text>
        </view>
    </view>
</view>

Page({
    data: {
        addressInfo: null
    },
    onShow: function () {
        console.log(this.data.addressInfo)
    },
    chooseLocation() {
        wx.navigateTo({
            url: '/pages/map/map',
        })
    }
})

map

<map id="map"
    latitude="{{latitude}}"
    longitude="{{longitude}}"
    scale='18'
    markers="{{markers}}"
    show-location
>
</map>

<style>
#map {
    width: 100%;
    height: 500rpx;
}
</style>

Page({
    data: {
        mapCtx: null,
        latitude: 0,
        longitude: 0,
        markers: []
    },
    onLoad: function (options) {
    },
    onReady: function (e) {
        this.mapCtx = wx.createMapContext('map');
        this.getUserLocation()
    },
    getUserLocation: function () {
        let that = this;
        wx.getLocation({
            type: 'wgs84',
            success: function (res) {
                that.latitude = res.latitude
                that.longitude = res.longitude
                console.log(res.latitude, res.longitude)
                wx.chooseLocation({
                    latitude: res.latitude,
                    longitude: res.longitude,
                    scale: 28,
                    success: function (addressInfo) {
                        console.log(addressInfo)
                        let pages = getCurrentPages()
                        let prevPage = pages[pages.length - 2]
                        // 将位置信息传递给上一页
                        prevPage.setData({
                            addressInfo: addressInfo
                        });
                        // 返回上一页
                        wx.navigateBack({
                            delta: 1
                        })
                    }
                })
            }
        })
    }
})