我有两个 Observable 第一个获取摄像机的名称
Observable<Camera> cameras = getCamera();
public Observable<Camera> getCamera() {
return Observable.create(cameras1 -> getApiMethods.getCameras()
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.concatMap(Observable::fromIterable)
.map(Camera::getDisplayName)
.subscribe(new Observer<String>() {
@Override
public void onSubscribe(@NonNull Disposable d) {
}
@Override
public void onNext(@NonNull String s) {
Log.d("RXJAVA", s);
}
@Override
public void onError(@NonNull Throwable e) {
Log.d("RXJAVA", String.valueOf(e));
}
@Override
public void onComplete() {
}
})
);
}
第二个获取相机的事件ID
Observable<Event> events = getEvents();
public Observable<Event> getEvents() {
return Observable.create(allEvents -> getApiMethods.getCameras()
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.concatMap(Observable::fromIterable)
.concatMap(Observable::fromIterable)
.concatMap(events -> getApiMethods.getEvents(events.getAccessPoint().replace("hosts", "")))
.concatMap(Observable::fromIterable)
.map(Event::getId)
.subscribe(new Observer<String>() {
@Override
public void onSubscribe(@NonNull Disposable d) {
}
@Override
public void onNext(@NonNull String event) {
Log.d("RXJAVA", event);
}
@Override
public void onError(@NonNull Throwable e) {
Log.d("RXJAVA", String.valueOf(e));
}
@Override
public void onComplete() {
}
})
);
}
我想将它们组合起来以获取有关相机的所有信息，并在此基础上准备一个帖子以进行展示。一台摄像机（用于一个标题）可以有多个 ID。我使用了 Observable.zip
Observable<Post> combined = Observable.zip(cameras, events, (camera, event) -> new Post(camera.getDisplayName(),"null",event.getType()));
combined.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer<Post>() {
@Override
public void onSubscribe(@NonNull Disposable d) {
}
@Override
public void onNext(@NonNull Post post) {
Log.d("RQJ", "RQJ");
}
@Override
public void onError(@NonNull Throwable e) {
}
@Override
public void onComplete() {
}
});
但是，不会调用 OnNext 方法。 可观察的相机和事件工作正常，我从他们那里得到信息。 感谢您的帮助！