* Copyright (c) 2024-2025 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
* @addtogroup AbilityRuntime
* @{
*
* @brief Describe the functions provided by the application context.
* @since 13
*/
* @file application_context.h
*
* @brief The file declares the APIs related to the application-level context.
*
* @library libability_runtime.so
* @kit AbilityKit
* @syscap SystemCapability.Ability.AbilityRuntime.Core
* @since 13
*/
#ifndef ABILITY_RUNTIME_APPLICATION_CONTEXT_H
#define ABILITY_RUNTIME_APPLICATION_CONTEXT_H
#include <stdint.h>
#include <stddef.h>
#include <AbilityKit/ability_base/want.h>
#include "ability_runtime_common.h"
#include "context_constant.h"
#include "start_options.h"
#ifdef __cplusplus
extern "C" {
#endif
* @brief Obtains the application-level cache directory of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the application-level cache directory of the
* application.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes) when
* {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**:
* The passed-in value of **buffer** or **writeLength** is null, or the
* buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 13
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetCacheDir(
char* buffer, int32_t bufferSize, int32_t* writeLength);
* @brief Obtains the application-level file data encryption level of the application.
*
* @param areaMode Pointer to the encryption level of the received data.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 13
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetAreaMode(AbilityRuntime_AreaMode* areaMode);
* @brief Obtains the bundle name of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the bundle name.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 13
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetBundleName(
char* buffer, int32_t bufferSize, int32_t* writeLength);
* @brief Obtains the application-level temporary file directory of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the temporary file directory.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetTempDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtains the application-level common file directory of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the common file directory.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetFilesDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtains the application-level database file directory of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the database file directory.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetDatabaseDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtains the application-level preferences file directory of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the preferences file directory.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetPreferencesDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtains the application-level installation file directory of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the installation file directory.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetBundleCodeDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtains the application-level distributed file directory of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the distributed file directory.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetDistributedFilesDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtains the application-level cloud file directory of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the cloud file directory.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 16
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetCloudFileDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtains the application-level resource directory of the application.
*
* @param moduleName Pointer to the module name.
* @param buffer Pointer to the buffer, which is used to receive the resource directory.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 20
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetResourceDir(const char* moduleName,
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Starts the UIAbility of the current application.
*
* @permission ohos.permission.NDK_START_SELF_UI_ABILITY
* @param want Pointer to the Want information required for starting the UIAbility.
* @return **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PERMISSION_DENIED**: Permission verification for the caller fails.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: Parameter verification for the caller fails.
* **ABILITY_RUNTIME_ERROR_CODE_NOT_SUPPORTED**: The device type is not supported.
* **ABILITY_RUNTIME_ERROR_CODE_NO_SUCH_ABILITY**: The specified ability name does not exist.
* **ABILITY_RUNTIME_ERROR_CODE_INCORRECT_ABILITY_TYPE**: The ability type is incorrect.
* **ABILITY_RUNTIME_ERROR_CODE_CROWDTEST_EXPIRED**: The crowdtesting application expires.
* **ABILITY_RUNTIME_ERROR_CODE_WUKONG_MODE**: The ability is started or stopped in Wukong mode.
* **ABILITY_RUNTIME_ERROR_CODE_CONTROLLED**: The application is under control.
* **ABILITY_RUNTIME_ERROR_CODE_EDM_CONTROLLED**: The application is under control by EDM.
* **ABILITY_RUNTIME_ERROR_CODE_CROSS_APP**: Redirecting to third-party applications
* is not allowed in API versions later than 11.
* **ABILITY_RUNTIME_ERROR_CODE_INTERNAL**: An internal error occurs.
* **ABILITY_RUNTIME_ERROR_CODE_NOT_TOP_ABILITY**: The application is not a top one.
* **ABILITY_RUNTIME_ERROR_CODE_UPPER_LIMIT_REACHED** (available since API version 17):
* The number of instances has reached the upper limit.
* **ABILITY_RUNTIME_ERROR_CODE_APP_INSTANCE_KEY_NOT_SUPPORTED** (available since API version 17): Setting **
* APP_INSTANCE_KEY** is not supported.
* For details, see **AbilityRuntime_ErrorCode**.
* @since 15
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_StartSelfUIAbility(AbilityBase_Want *want);
* @brief Starts the UIAbility of the current application using **StartOptions**.
*
* @permission ohos.permission.NDK_START_SELF_UI_ABILITY
* @param want Pointer to the Want information required for starting the UIAbility.
* @param options Pointer to **StartOptions** required for starting the UIAbility.
* If the value of {@link startVisibility}
* is not null, ensure that the current application has been added to the status bar.
* Otherwise, the {@link ABILITY_RUNTIME_ERROR_VISIBILITY_SETTING_DISABLED} error code is returned.
* @return <ul><li>**ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_PERMISSION_DENIED**: Permission verification for the caller fails.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: Parameter verification for the caller fails.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_NOT_SUPPORTED**: The device type is not supported.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_NO_SUCH_ABILITY**: The specified ability name does not exist.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_INCORRECT_ABILITY_TYPE**: The ability type is incorrect.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_CROWDTEST_EXPIRED**: The crowdtesting application expires.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_WUKONG_MODE**: The ability is started or stopped in Wukong mode.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_CONTROLLED**: The application is under control.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_EDM_CONTROLLED**: The application is under control by EDM.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_CROSS_APP**: Redirecting to third-party applications
* is not allowed in API versions later than 11.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_INTERNAL**: An internal error occurs.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_NOT_TOP_ABILITY**: The application is not a top one.</li>
* <li>**ABILITY_RUNTIME_ERROR_VISIBILITY_SETTING_DISABLED**:
* Setting the window visibility during startup is not allowed.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_MULTI_APP_NOT_SUPPORTED**:
* The application does not support clone or multi-instance mode.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_INVALID_APP_INSTANCE_KEY**: The multi-instance key is invalid.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_UPPER_LIMIT_REACHED**:
* The number of instances has reached the upper limit.</li>
* <li>**ABILITY_RUNTIME_ERROR_MULTI_INSTANCE_NOT_SUPPORTED**:
* The application does not support multi-instance mode.</li>
* <li>**ABILITY_RUNTIME_ERROR_CODE_APP_INSTANCE_KEY_NOT_SUPPORTED**:
* Setting **APP_INSTANCE_KEY** is not supported.
* For details, see **AbilityRuntime_ErrorCode**.</li></ul>
* @since 17
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_StartSelfUIAbilityWithStartOptions(AbilityBase_Want *want,
AbilityRuntime_StartOptions *options);
* @brief Obtains the application version code.
*
* @param versionCode The version code of the application.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: **versionCode** is null.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* **ABILITY_RUNTIME_ERROR_CODE_GET_APPLICATION_INFO_FAILED**: Failed to obtain the application information.
* @since 21
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetVersionCode(int64_t* versionCode);
* @brief Obtains **WantParams** passed for the initial launch of the UIAbility of the current application. For details
* about **WantParams**, see {@link parameters in Want}.
*
* @param buffer Pointer to the buffer, which is used to receive **WantParams**.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 21
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetLaunchParameter(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Obtains **WantParams** passed for the mose recent launch of the UIAbility of the current application. For
* details about **WantParams**, see {@link parameters in Want}.
*
* @param buffer Pointer to the buffer, which is used to receive **WantParams**.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 21
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetLatestParameter(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief Starts the UIAbility of the current application using **StartOptions** and obtains the process ID of the
* target UIAbility.
*
* @permission ohos.permission.NDK_START_SELF_UI_ABILITY
* @param want Pointer to the Want information required for starting the UIAbility.
* @param options Pointer to **StartOptions** required for starting the UIAbility.
* If the value of {@link startVisibility} is not null, ensure that the current application has been added
* to the status bar. Otherwise, the {@link ABILITY_RUNTIME_ERROR_VISIBILITY_SETTING_DISABLED}
* error code is returned.
* @param targetPid Pointer to the process ID of the target UIAbility.
* @return **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PERMISSION_DENIED**: Permission verification for the caller fails.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: Parameter verification for the caller fails.
* **ABILITY_RUNTIME_ERROR_CODE_NOT_SUPPORTED**: The device type is not supported.
* **ABILITY_RUNTIME_ERROR_CODE_NO_SUCH_ABILITY**: The specified ability name does not exist.
* **ABILITY_RUNTIME_ERROR_CODE_INCORRECT_ABILITY_TYPE**: The ability type is incorrect.
* **ABILITY_RUNTIME_ERROR_CODE_CROWDTEST_EXPIRED**: The crowdtesting application expires.
* **ABILITY_RUNTIME_ERROR_CODE_WUKONG_MODE**: The ability is started or stopped in Wukong mode.
* **ABILITY_RUNTIME_ERROR_CODE_CONTROLLED**: The application is under control.
* **ABILITY_RUNTIME_ERROR_CODE_EDM_CONTROLLED**: The application is under control by EDM.
* **ABILITY_RUNTIME_ERROR_CODE_CROSS_APP**: Redirecting to third-party applications
* is not allowed in API versions later than 11.
* **ABILITY_RUNTIME_ERROR_CODE_INTERNAL**: An internal error occurs.
* **ABILITY_RUNTIME_ERROR_CODE_NOT_TOP_ABILITY**: The application is not a top one.
* **ABILITY_RUNTIME_ERROR_VISIBILITY_SETTING_DISABLED**:
* Setting the window visibility during startup is not allowed.
* **ABILITY_RUNTIME_ERROR_CODE_MULTI_APP_NOT_SUPPORTED**:
* The application does not support clone or multi-instance mode.
* **ABILITY_RUNTIME_ERROR_CODE_INVALID_APP_INSTANCE_KEY**: The multi-instance key is invalid.
* **ABILITY_RUNTIME_ERROR_CODE_UPPER_LIMIT_REACHED**: The number of instances has reached the upper limit.
* **ABILITY_RUNTIME_ERROR_MULTI_INSTANCE_NOT_SUPPORTED**: The application does not support multi-instance mode.
* **ABILITY_RUNTIME_ERROR_CODE_APP_INSTANCE_KEY_NOT_SUPPORTED**: Setting **APP_INSTANCE_KEY** is not supported.
* **ABILITY_RUNTIME_ERROR_CODE_START_TIMEOUT**: Starting the UIAbility times out.
* **ABILITY_RUNTIME_ERROR_CODE_MAIN_THREAD_NOT_SUPPORTED**:
* The function cannot be called on the main thread of the application.
* @since 21
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_StartSelfUIAbilityWithPidResult(AbilityBase_Want *want,
AbilityRuntime_StartOptions *options, int32_t *targetPid);
* @brief Obtains the application-level log file directory of the application.
*
* @param buffer Pointer to the buffer, which is used to receive the log file directory.
* @param bufferSize Buffer size, in bytes.
* @param writeLength Pointer to the length of the string written to the buffer (measured in bytes)
* when {@link ABILITY_RUNTIME_ERROR_CODE_NO_ERROR} is returned.
* @return One of the following execution results:
* **ABILITY_RUNTIME_ERROR_CODE_NO_ERROR**: The operation is successful.
* **ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID**: The passed-in value of **buffer** or **writeLength** is null,
* or the buffer size is less than the size of the string to be written.
* **ABILITY_RUNTIME_ERROR_CODE_CONTEXT_NOT_EXIST**: The application context does not exist. For example, the
* application-level context does not exist in the {@link child process} created by the application.
* @since 22
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextGetLogFileDir(
char* buffer, const int32_t bufferSize, int32_t* writeLength);
* @brief This API can be called only from third-party frameworks. Each time a third-party framework switches pages, it
* notifies the system of the target page information (including the target page path, the length of the target page
* path, and the window ID corresponding to the target page). The system can adjust or recover the page according to
* product policies.
*
* @param targetPageName Target page path.
* @param targetPageNameLength Length of the target page path.
* @param windowId {@link Window ID} corresponding to the target page.
* @return One of the following execution results:
* ABILITY_RUNTIME_ERROR_CODE_NO_ERROR: The operation is successful.
* ABILITY_RUNTIME_ERROR_CODE_PARAM_INVALID:
* The input parameter **targetPageName** is empty orthe windowId is invalid.
* **ABILITY_RUNTIME_ERROR_CODE_INTERNAL**: An internal error occurs.
* @since 23
*/
AbilityRuntime_ErrorCode OH_AbilityRuntime_ApplicationContextNotifyPageChanged(
const char* targetPageName, int32_t targetPageNameLength, int32_t windowId);
#ifdef __cplusplus
}
#endif
#endif
