onRequestToJoinReceivedFromGroup method Null safety
- String groupId,
- String? groupName,
- String applicant,
- String? reason
收到用户applicant
申请加入id是groupId
, 名称是groupName
的群,原因是reason
Implementation
void onRequestToJoinReceivedFromGroup(
String groupId, String? groupName, String applicant, String? reason);