isJoinedGroup method
Check if the user has joined a group
groupID
Group ID
Implementation
Future<bool> isJoinedGroup({
required String groupID,
String? operationID,
}) =>
_channel
.invokeMethod(
'isJoinGroup',
_buildParam({
'groupID': groupID,
'operationID': Utils.checkOperationID(operationID),
}))
.then((value) => value == 'true' ? true : false);