harmony 鸿蒙asset_api.h
asset_api.h
Overview
Defines the functions for accessing assets.
Library: libasset_ndk.z.so
System capability: SystemCapability.Security.Asset
Since: 11
Related module: AssetApi
Summary
Functions
| Name | Description |
|---|---|
| int32_t OH_Asset_Add (const Asset_Attr *attributes, uint32_t attrCnt) | Adds an asset. |
| int32_t OH_Asset_Remove (const Asset_Attr *query, uint32_t queryCnt) | Removes one or more assets. |
| int32_t OH_Asset_Update (const Asset_Attr *query, uint32_t queryCnt, const Asset_Attr *attributesToUpdate, uint32_t updateCnt) | Updates an asset. |
| int32_t OH_Asset_PreQuery (const Asset_Attr *query, uint32_t queryCnt, Asset_Blob *challenge) | Performs preprocessing for the asset query. This function is used when user authentication is required for the access to the asset. |
| int32_t OH_Asset_Query (const Asset_Attr *query, uint32_t queryCnt, Asset_ResultSet *resultSet) | Queries one or more assets. |
| int32_t OH_Asset_PostQuery (const Asset_Attr *handle, uint32_t handleCnt) | Performs postprocessing for the asset query. This function is used when user authentication is required for the access to the asset. |
| Asset_Attr * OH_Asset_ParseAttr (const Asset_Result *result, Asset_Tag tag) | Parses the query result and obtains the specified attribute. |
| void OH_Asset_FreeBlob (Asset_Blob *blob) | Releases the memory occupied by the challenge value. |
| void OH_Asset_FreeResultSet (Asset_ResultSet *resultSet) | Releases the memory occupied by the query result. |
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