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Asynchronous Android Programming

You're reading from   Asynchronous Android Programming Unlock the power of multi-core mobile devices to build responsive and reactive Android applications

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Product type Paperback
Published in Jul 2016
Publisher Packt
ISBN-13 9781785883248
Length 394 pages
Edition 2nd Edition
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Authors (2):
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Helder Vasconcelos Helder Vasconcelos
Author Profile Icon Helder Vasconcelos
Helder Vasconcelos
Steve Liles Steve Liles
Author Profile Icon Steve Liles
Steve Liles
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Toc

Table of Contents (14) Chapters Close

Preface 1. Asynchronous Programming in Android FREE CHAPTER 2. Performing Work with Looper, Handler, and HandlerThread 3. Exploring the AsyncTask 4. Exploring the Loader 5. Interacting with Services 6. Scheduling Work with AlarmManager 7. Exploring the JobScheduler API 8. Interacting with the Network 9. Asynchronous Work on the Native Layer 10. Network Interactions with GCM 11. Exploring Bus-based Communications 12. Asynchronous Programing with RxJava Index

Registering sbscribers


With the Publisher/Sender class and event class already specified, all that remains is to register our Activity class to receive both events and print the event sent on the screen.

Like we stated before, to receive any event from the Bus, the Subscriber entity, which could be any Java class on your code, will have to register on the Bus and subscribe to the event that it is interested in.

Any object will have to register on the Bus by calling the register function and provide a single on<EventName>(EventType) method annotated with org.greenrobot.eventbus.Subscribe for all the kind of event that it is interested in:

@Subscribe
void on<EventClassname>(EventClassname event) {
 ...
}

Let's implement the functions that are going to handle the MobileNetDisconnectedEvent and the MobileNetConnectedEvent event in our Activity:

@Subscribe
public void 
onMobileNetDisconnectedEvent(MobileNetDisconnectedEvent event){

  String message = String.format(
    "Mobile connection...
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