onGroupEvent method Null safety
- EMMultiDevicesEvent event,
- String groupId,
- List<
String> ? usernames
The multi-device event callback of group.
Param event
The event type.
Param groupId
The group ID.
Param usernames
The array of usernames.
Implementation
void onGroupEvent(
EMMultiDevicesEvent event,
String groupId,
List<String>? usernames,
);