Rx event bus that lifecycle aware to pass data between application component
public class MainActivity extends AppCompatActivity implements RxBus.RxBusObserver{
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
new RxBus.RxLifeCycleObserver(this, this);
//from and place in the code call
RxBus.bus().send(YourObject);
}
@Override
public void onNextObject(Object o) {
//you get your data from the bus here
}
}
/**
* Rx event bus that lifecycle aware to pass data between application component
*/
public class RxBus {
private PublishSubject<Object> bus = PublishSubject.create();
private static RxBus rxBus;
static {
try {
if (rxBus == null) {
rxBus = new RxBus();
}
} catch (Exception e) {
Timber.e(e);
}
}
@NonNull
public static RxBus bus() {
if (rxBus != null) {
return rxBus;
} else {
return new RxBus();
}
}
public void send(Object o) {
if (o != null) {
bus.onNext(o);
}
}
Observable<Object> toObservable() {
return bus;
}
public interface RxBusObserver {
void onNextObject(Object o);
}
/**
* Handle subscribe and un subscribe to avoid memory leak
*/
public static class RxLifeCycleObserver implements LifecycleObserver {
private CompositeDisposable compositeDisposable = new CompositeDisposable();
private RxBusObserver rxBusObserver;
private RxBus bus;
public RxLifeCycleObserver(LifecycleOwner lifecycleOwner, RxBusObserver rxBusObserver) {
this.rxBusObserver = rxBusObserver;
this.bus = RxBus.bus();
lifecycleOwner.getLifecycle().addObserver(this);
}
@OnLifecycleEvent(Lifecycle.Event.ON_START)
void start() {
if (compositeDisposable != null) {
compositeDisposable.add(bus.toObservable()
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(o -> {
if (rxBusObserver != null) {
rxBusObserver.onNextObject(o);
}
}, Timber::e));
}
}
@OnLifecycleEvent(Lifecycle.Event.ON_STOP)
void stop() {
if (compositeDisposable != null) {
compositeDisposable.clear();
}
}
}
}