Id Added To subscribers

[muhammadzadeh]

Please consider the following scenario:
In Messenger, there is a list of chats that need to be updated. Therefore, this must happen by sending an event. The specified event is sent to all rows of chats by default. But we need to send the chat update event in only one row. In this case, the ID is used.

[andob]

Instead of using IDs inside the library, why don't you create more descriptive event classes?

For instance, on your given example, say, you have a class describing a row with an user and its last message:

public class UserRowView
{
   ...
   @Subscribe
   public void onMessageReceived(String message)
   {
        lastMessageTextView.setText(message);
   }
   ...
}

You can reorganise the code like this:

class OnMessageReceivedEvent { text : String, receivedFromId : int }

public class UserRowView
{
   private int userId;
   //todo show user name, its last message, set userId
   ...
   @Subscribe
   public void onMessageReceived(OnMessageReceivedEvent event)
   {
        if (event.receivedFromId == userId)
        {
            lastMessageTextView.setText(message);
        }
   }
   ...
}

[muhammadzadeh]

You are right. We just have to keep in mind that sending events to a large number of subscribers does not make sense when we are on the list.