sendLocationMessage method
发送地理位置消息
Implementation
Future<V2TimValueCallback<V2TimMessage>> sendLocationMessage({
required String desc,
required double longitude,
required double latitude,
required String receiver,
required String groupID,
int priority = 0,
bool onlineUserOnly = false,
bool isExcludedFromUnreadCount = false,
Map<String, dynamic>? offlinePushInfo,
}) async {
throw UnimplementedError("sendLocationMessage () has not been implemented");
}