Example: Communication between Activity and Service using Messaging

Question

I couldn\'t find any examples of how to send messages between an activity and a service, and I have spent far too many hours figuring this out. Here is an example project fo

Answer 1

I have seen all answers. I want tell most robust way now a day. That will make you communicate between Activity - Service - Dialog - Fragments (Everything).

EventBus

This lib which i am using in my projects has great features related to messaging.

EventBus in 3 steps

1. Define events:

   public static class MessageEvent { /* Additional fields if needed */ }

2. Prepare subscribers:

Declare and annotate your subscribing method, optionally specify a thread mode:

@Subscribe(threadMode = ThreadMode.MAIN) 
public void onMessageEvent(MessageEvent event) {/* Do something */};

Register and unregister your subscriber. For example on Android, activities and fragments should usually register according to their life cycle:

@Override
public void onStart() {
    super.onStart();
    EventBus.getDefault().register(this);
}

@Override
public void onStop() {
    super.onStop();
    EventBus.getDefault().unregister(this);
}

3. Post events:

   EventBus.getDefault().post(new MessageEvent());

Just add this dependency in your app level gradle

compile 'org.greenrobot:eventbus:3.1.1'