HarmonyOS 如何判断用户在位置访问权限中是否选择始终允许？

Question

如题：HarmonyOS 如何判断用户在位置访问权限中是否选择始终允许？

Answer 1

目前只能判断定位权限是否授权。无法区分是否是用户主动关闭了系统定位。

// 校验应用是否被授予定位权限，可以通过调用checkAccessToken()方法来校验当前是否已经授权。
async checkPermissions(): Promise<boolean> {
  const permissions: Array<Permissions> = ['ohos.permission.LOCATION', 'ohos.permission.APPROXIMATELY_LOCATION'];
  for (let permission of permissions) {
  let grantStatus: abilityAccessCtrl.GrantStatus = await this.checkAccessToken(permission);
    if (grantStatus === abilityAccessCtrl.GrantStatus.PERMISSION_GRANTED) {
    return true;
    }
  }
  return false;
}

async checkAccessToken(permission: Permissions): Promise<abilityAccessCtrl.GrantStatus> {
  let atManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager();
  let grantStatus: abilityAccessCtrl.GrantStatus = abilityAccessCtrl.GrantStatus.PERMISSION_DENIED;

  // 获取应用程序的accessTokenID
  let tokenId: number = 0;
  try {
  let bundleInfo: bundleManager.BundleInfo = await bundleManager.getBundleInfoForSelf(bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_APPLICATION);
  let appInfo: bundleManager.ApplicationInfo = bundleInfo.appInfo;
  tokenId = appInfo.accessTokenId;
} catch (error) {
  let err: BusinessError = error as BusinessError;
  console.error(`Failed to get bundle info for self. Code is ${err.code}, message is ${err.message}`);
}

// 校验应用是否被授予权限
try {
  grantStatus = await atManager.checkAccessToken(tokenId, permission);
} catch (error) {
  let err: BusinessError = error as BusinessError;
  console.error(`Failed to check access token. Code is ${err.code}, message is ${err.message}`);
}

return grantStatus;
}

可以自行本地在申请权限的时候记录授权或取消授权的状态值，通过首选项记录例如，1和2其余的情况均属于用户主动关闭了系统定位。