SubscribeUserStatus
introduction
Subscribe user status
After subscription, listen to UserStatusChangedCallback to get changing user status (online status, custom status)
Subscribe friend list status, just turn on it on the IM console, no need for calling this
Use UserStatusChangedCallback to subscribe self status changing
Subscription has limits, over the limit, the oldest subscription will be deactivated
IM Ultimate package only, Buy Ultimate package to enable this feature,more info check on product details.
Parameter details
overload1
| Parameter name | Parameter type | Required | Description |
|---|---|---|---|
| json_identifier_array | List< string > | Required | Subscribed user ID list |
| callback | NullValueCallback | Required | Asynchronous callback |
overload2
| Parameter name | Parameter type | Required | Description |
|---|---|---|---|
| json_identifier_array | List< string > | Required | Subscribed user ID list |
| callback | ValueCallback< string > | Required | Asynchronous callback The format of json_param in the return value is string |
Returned template
TIMResult
The parameters of the callback function after successfully calling the API：
code:int
desc:string
json_param:'' // json_ Params is an empty string ""
user_data:string
Return value details
| name | type | description |
|---|---|---|
| TIMResult | TIMResult | Return value of calling API |
| code | int | Result error code: Error Codes |
| desc | string | The description of the error. |
| json_param | string | Json string. Calling different API will get different Json strings. |
| user_data | string | User-defined data transfered by ImSDK without any processing |