I created a list and made it observable by using using getx obs

var msgChat = List.filled(1, UserMessagesModel(), growable: true).obs; 

and if i append or add a new to it, it automatically updates in the UI but my problem is that if i using a single value inside the classes of the list it doesn't get updated until i do it for the second time before it updates

socket.on("msg_delivered", (del) {
    OfflineDatabaseManager.instance.updateMsgReadData(del).then((value) {
      uController.msgChat.forEach((el) {
        if (el.msgId == del) {
          print(el.msgId);
          el.isRead = 'true';
        }
      });
    });
  });

my listview is wrap using an Obx widget which makes it work but it doesn't updated if a single value in the class of the list is changed please is there a way to like refresh the list or listview and also i can't use setState(() {}); because an not inside a Statefulbuilder but in a class which extends to getx

class SocketHandler extends GetxController {}

please how do i fix this issue. Thank. Also if you require more explanation then tell me to explain

CodePudding user response：

you can use refresh method like this on your observable, after changing the value:

msgChat.refresh()

if this didn't work, it's probably because you didn't use Obs correctly

please share the Obs part if the problem remains so i can help