1. HarmonyOS 获取位置信息

1.1. 官方文档

权限申请
位置服务

1.2. 权限申请

1.2.1. 配置位置权限信息

    "requestPermissions": [
     //API9之前只申请这个就可以米级定位
      {'name':  'ohos.permission.LOCATION'},//API9之前申请的权限
      //API9后两个权限同时申请才可以获取米级定位，只下边一个权限只能精准到5公里
      {'name':  'ohos.permission.APPROXIMATELY_LOCATION'},//API9及之后需要增加申请的权限
      {
        "name": 'ohos.permission.LOCATION_IN_BACKGROUND'
      }
    ],

1.2.2. 权限申请

  访问设备的位置信息，必须申请权限，并且获得用户授权（src/main/ets/entryability/EntryAbility.ts里申请）

import abilityAccessCtrl from '@ohos.abilityAccessCtrl'
 async onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): Promise<void>  {
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');
    let manger = abilityAccessCtrl.createAtManager()
    try {
      await manger.requestPermissionsFromUser(this.context,
        [
          'ohos.permission.MEDIA_LOCATION',
          'ohos.permission.LOCATION',
          'ohos.permission.APPROXIMATELY_LOCATION',
        ])
    } catch (err) {
      promptAction.showToast({ message: '获取位置信息失败！' })
    }
  }

1.3. 逻辑代码

import UIAbility from '@ohos.app.ability.UIAbility';
import hilog from '@ohos.hilog';
import window from '@ohos.window';
import abilityAccessCtrl from '@ohos.abilityAccessCtrl'
import promptAction from '@ohos.promptAction';

export default class EntryAbility extends UIAbility {
  async onCreate(want, launchParam) {
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');
    let manger = abilityAccessCtrl.createAtManager()
    try {
      await manger.requestPermissionsFromUser(this.context,
        [
          'ohos.permission.MEDIA_LOCATION',
          'ohos.permission.LOCATION',
          'ohos.permission.APPROXIMATELY_LOCATION',
        ])
    } catch (err) {
      console.log( '获取位置信息失败！'+err);
      promptAction.showToast({ message: '获取位置信息失败！' })
    }
  }

  onDestroy() {
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onDestroy');
  }

  onWindowStageCreate(windowStage: window.WindowStage) {
    // Main window is created, set main page for this ability
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');

    windowStage.loadContent('pages/Main', (err, data) => {
      if (err.code) {
        hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
        return;
      }
      hilog.info(0x0000, 'testTag', 'Succeeded in loading the content. Data: %{public}s', JSON.stringify(data) ?? '');
    });
  }

  onWindowStageDestroy() {
    // Main window is destroyed, release UI related resources
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageDestroy');
  }

  onForeground() {
    // Ability has brought to foreground
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onForeground');
  }

  onBackground() {
    // Ability has back to background
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onBackground');
  }
}