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 | import React, { useState } from "react";import Taro, { useReady, useDidShow, useDidHide } from "@tarojs/taro";
 import { View, Map } from "@tarojs/components";
 
 const hasOwnProperty = (obj, key) => {
 return Object.prototype.hasOwnProperty.call(obj, key);
 };
 
 const HandleLocation = () => {
 const [systemSetting, setSystemSetting] = useState({});
 const [location, setLocation] = useState({ longitude: "", latitude: "" });
 const [locationList, setLocationList] = useState([]);
 
 const handleGetLocation = () => {
 if (Taro.canIUse("startLocationUpdateBackground")) {
 
 
 
 
 
 
 Taro.startLocationUpdateBackground({
 success() {
 Taro.onLocationChange((data) => {
 setLocationList((pre) => [...pre, data]);
 
 setLocation({ longitude: data.longitude, latitude: data.latitude });
 
 
 
 });
 },
 fail(err) {
 console.log(err);
 Taro.showToast({
 icon: "error",
 title: "定位失败",
 });
 
 Taro.openSetting();
 },
 });
 } else {
 Taro.showToast({
 icon: "error",
 title: "您的设备暂不支持定位",
 });
 }
 };
 
 
 
 const checkMobileLocationAuth = () => {
 return new Promise((resolve, reject) => {
 Taro.getSystemInfoAsync({
 success(data) {
 setSystemSetting(data);
 
 if (
 data &&
 hasOwnProperty(data, "locationEnabled") &&
 !data.locationEnabled
 ) {
 Taro.showModal({
 title: "提示",
 content: "请打开手机设置-位置信息(GPS)开关",
 confirmText: "确定",
 showCancel: false,
 });
 
 reject();
 }
 
 if (
 data &&
 hasOwnProperty(data, "locationAuthorized") &&
 !data.locationAuthorized
 ) {
 Taro.showModal({
 title: "提示",
 content:
 "请打开手机设置-应用设置-应用管理-微信-权限管理-定位权限开关",
 confirmText: "确定",
 showCancel: false,
 success() {
 
 },
 });
 
 reject();
 }
 
 resolve();
 },
 fail() {
 reject();
 },
 });
 });
 };
 
 
 const checkMiniAppLocationAuth = () => {
 return new Promise((resolve, reject) => {
 if (!Taro.canIUse("getSetting")) return reject();
 
 Taro.getSetting({
 success: function (res) {
 const authSetting = res.authSetting;
 
 if (
 authSetting &&
 hasOwnProperty(authSetting, "scope.userLocation") &&
 hasOwnProperty(authSetting, "scope.userLocationBackground") &&
 authSetting["scope.userLocation"] &&
 authSetting["scope.userLocationBackground"]
 ) {
 resolve();
 } else {
 if (Taro.canIUse("openSetting")) {
 Taro.showModal({
 title: "提示",
 content:
 "请在点击确定后,在弹出的选项中务必勾选“使用小程序期间和离开小程序之后”选项",
 confirmText: "确定",
 showCancel: false,
 success() {
 Taro.openSetting();
 },
 });
 } else {
 Taro.showModal({
 title: "提示",
 content:
 "请点击右上角“...”更多-设置-位置信息,在弹出的选项中务必勾选“使用小程序期间和离开小程序之后”选项",
 confirmText: "确定",
 showCancel: false,
 });
 }
 
 reject();
 }
 },
 });
 });
 };
 
 useReady(() => {
 console.log("useReady==>");
 });
 
 useDidShow(() => {
 console.log("useDidShow==>");
 if (Taro.canIUse("stopLocationUpdate")) {
 Taro.stopLocationUpdate({
 complete() {
 checkMobileLocationAuth()
 .then(checkMiniAppLocationAuth)
 .then(() => {
 
 handleGetLocation();
 })
 .catch(() => {
 console.log("err==>");
 });
 },
 });
 }
 });
 
 useDidHide(() => {
 console.log("useDidHide==>");
 });
 
 return (
 <View>
 <Map
 style="width: 100%; height: 200px;"
 scale={16}
 longitude={location.longitude}
 latitude={location.latitude}
 />
 </View>
 );
 };
 
 |