Update an Asset (C/C++)

Available APIs

For details about the API, see:

int32_t OH_Asset_Update(const Asset_Attr *query, uint32_t queryCnt, const Asset_Attr *attributesToUpdate, uint32_t updateCnt)

Attributes in query:

Attributes in attributesToUpdate:

Example

Update asset demo_alias as follows: change the asset plaintext to demo_pwd_new and additional attribute to demo_label_new.

1. Add the dynamic library in the CMake script.

   target_link_libraries(entry PUBLIC libasset_ndk.z.so)
   

2. Add an asset.

   #include <string.h>
   
   #include "asset/asset_api.h"
   
   void UpdateAsset() {
      static const char *ALIAS = "demo_alias";
      static const char *SECRET = "demo_pwd_new";
      static const char *LABEL = "demo_label_new";
   
      Asset_Blob alias = { (uint32_t)(strlen(ALIAS)), (uint8_t *)ALIAS };
      Asset_Blob new_secret = { (uint32_t)(strlen(SECRET)), (uint8_t *)SECRET };
      Asset_Blob new_label = { (uint32_t)(strlen(LABEL)), (uint8_t *)LABEL };
      Asset_Attr query[] = { { .tag = ASSET_TAG_ALIAS, .value.blob = alias } };
      Asset_Attr attributesToUpdate[] = {
         { .tag = ASSET_TAG_SECRET, .value.blob = new_secret },
         { .tag = ASSET_TAG_DATA_LABEL_NORMAL_1, .value.blob = new_label },
      };
   
      int32_t ret = OH_Asset_Update(query, sizeof(query) / sizeof(query[0]), attributesToUpdate,
                                    sizeof(attributesToUpdate) / sizeof(attributesToUpdate[0]));
      if (ret == ASSET_SUCCESS) {
         // Asset updated successfully.
      } else {
         // Failed to update Asset.
      }
   }
   

Constraints

N/A.