HarmonyOS 鸿蒙Next 离线定位怎么做需要哪个选取

import { abilityAccessCtrl, common, Permissions } from '@kit.AbilityKit';
import { Logger } from '../log/Logger';
import { geoLocationManager } from '@kit.LocationKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { intl } from '@kit.LocalizationKit';

const REQUEST_PERMISSIONS: Array<Permissions> = [
  'ohos.permission.APPROXIMATELY_LOCATION',
  'ohos.permission.LOCATION'
]

@Entry
@Component
struct Index {
  private context: common.UIAbilityContext = getContext(this) as common.UIAbilityContext;
  @State message: string = '当前位置：';
  @State locale: string = new intl.Locale().language;

  getCurrentLocation() {
    let atManager = abilityAccessCtrl.createAtManager();
    try {
      atManager.requestPermissionsFromUser(this.context, REQUEST_PERMISSIONS).then((data) => {
        if (data.authResults[0] !== 0 || data.authResults[1] !== 0) {
          return;
        }

        let locationChange = (err: BusinessError, location: geoLocationManager.Location) => {
          // 获取经纬度
          if (location.latitude === 0 && location.longitude === 0) {
            return;
          }

          // 将经纬度转成实际位置
          let reverseGeocodeRequest: geoLocationManager.ReverseGeoCodeRequest = {
            'locale': this.locale.toString().includes('zh') ? 'zh' : 'en',
            'latitude': location.latitude,
            'longitude': location.longitude,
            'maxItems': 1
          };
          // this.message = this.message + location.latitude + location.longitude;
          geoLocationManager.getAddressesFromLocation(reverseGeocodeRequest).then(data => {
            if (data[0].placeName) {
              this.message = this.message + data[0].placeName;
            }
          }).catch((err: Error) => {
            Logger.error('GetAddressesFromLocation err ' + JSON.stringify(err));
          });
        };

        geoLocationManager.getCurrentLocation(
          {
            priority: geoLocationManager.LocationRequestPriority.FIRST_FIX,
            scenario: geoLocationManager.LocationRequestScenario.UNSET
          }, locationChange);
      }).catch((err: Error) => {
        Logger.error(`req permissions failed, error.code:${err.name}, error message: ${err.message}.`)
      })
    } catch (err) {
      Logger.error(`req permissions failed, error.code:${err.code}, error message: ${err.message}.`)
    }
  }

  build() {
    Row() {
      Column() {
        Button("获取当前位置")
          .fontSize(20)
          .onClick(() => {
            this.getCurrentLocation()
          })

        Text(this.message)
          .fontSize(30)
          .fontWeight(FontWeight.Bold)

      }
      .width('100%')
    }
    .height('100%')
  }
}