onInvitationReceivedFromGroup method Null safety
Occurs when the user receives a group invitation.
Param groupId
The group ID.
Param groupName
The group name.
Param inviter
The invitee ID.
Param reason
The reason for invitation.
Implementation
void onInvitationReceivedFromGroup(
String groupId, String? groupName, String inviter, String? reason);