UserSigExpiredCallback
introduction
Callback for user signature expired
If you receive the UserSigExpiredCallback callback, the UserSig that you use for login has expired. In this case, you need to use a new UserSig to log in again. If you continue to use the expired UserSig, the IM SDK will be in an infinite login loop.
Returned template
void UserSigExpiredCallback(string user_data);
Return value details
| name | type | description |
|---|---|---|
| user_data | string | User-defined data transfered by ImSDK without any processing |