1/* 2* Copyright (C) 2021-2022 Huawei Device Co., Ltd. 3* Licensed under the Apache License, Version 2.0 (the "License"); 4* you may not use this file except in compliance with the License. 5* You may obtain a copy of the License at 6* 7* http://www.apache.org/licenses/LICENSE-2.0 8* 9* Unless required by applicable law or agreed to in writing, software 10* distributed under the License is distributed on an "AS IS" BASIS, 11* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12* See the License for the specific language governing permissions and 13* limitations under the License. 14*/ 15 16import { AsyncCallback } from "./basic"; 17 18/** 19 * Provides Environment APIs. 20 * 21 * @since 8 22 * @syscap SystemCapability.FileManagement.File.Environment 23 * @systemapi 24 */ 25declare namespace Environment { 26 /** 27 * Get the user data path. 28 * 29 * @since 8 30 * @syscap SystemCapability.FileManagement.File.Environment 31 * @systemapi 32 * @param {AsyncCallback<string>} [callback] - callback 33 * @returns {void | Promise<string>} no callback return Promise otherwise return void 34 * @throws { BusinessError } 202 - The caller is not a system application 35 * @throws { BusinessError } 13900020 - Invalid argument 36 * @throws { BusinessError } 13900042 - Unknown error 37 */ 38 function getStorageDataDir(): Promise<string>; 39 function getStorageDataDir(callback: AsyncCallback<string>): void; 40 41 /** 42 * Get the User storage path. 43 * 44 * @since 8 45 * @syscap SystemCapability.FileManagement.File.Environment 46 * @systemapi 47 * @param {AsyncCallback<string>} [callback] - callback 48 * @returns {void | Promise<string>} no callback return Promise otherwise return void 49 * @throws { BusinessError } 202 - The caller is not a system application 50 * @throws { BusinessError } 13900020 - Invalid argument 51 * @throws { BusinessError } 13900042 - Unknown error 52 */ 53 function getUserDataDir(): Promise<string>; 54 function getUserDataDir(callback: AsyncCallback<string>): void; 55} 56 57export default Environment; 58