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记录一次RxJava_Zip操作符

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/**
* Rxjava zip操作符实现并行请求,统一结果处理
*
* 随堂练习 网络请求 (说明:三个接口请求返回后统一整合并显示)
*/
private void loadPreClassPreviewData() {

Observable<List<PreClassPreviewInfoBean>> observablePreClassPreview =
Observable.create(new Observable.OnSubscribe<List<PreClassPreviewInfoBean>>() {
@Override
public void call(final Subscriber<? super List<PreClassPreviewInfoBean>> subscriber) {
model.loadPreClassPreviewData(selectIds, unitIds, lessonIds, new ILoadDataListener() {
@Override
public void success(YQZYReqType api) {
if (mView != null) {
subscriber.onNext(model.getPreClassPreviewInfoBeanList());
}
}

@Override
public void error(YQZYReqType api, int errorCode, String errorMessage) {
if (mView != null) {
subscriber.onError(new Throwable(errorMessage));
}
}
});
}
}).onErrorReturn(new Func1<Throwable, List<PreClassPreviewInfoBean>>() {
@Override
public List<PreClassPreviewInfoBean> call(Throwable throwable) {
return null;
}
});

Observable<List<ReviewAfterInfoBean>> observableReviewAfter =
Observable.create(new Observable.OnSubscribe<List<ReviewAfterInfoBean>>() {
@Override
public void call(final Subscriber<? super List<ReviewAfterInfoBean>> subscriber) {
model.loadReviewAfterClassData(selectIds, lessonIds, unitIds, clazzLevels, new
ILoadDataListener() {
@Override
public void success(YQZYReqType api) {
if (mView != null) {
subscriber.onNext(model.getReviewAfterInfoBeanList());
}
}

@Override
public void error(YQZYReqType api, int errorCode, String errorMessage) {
if (mView != null) {
subscriber.onError(new Throwable(errorMessage));
}
}
});
}
}).onErrorReturn(new Func1<Throwable, List<ReviewAfterInfoBean>>() {
@Override
public List<ReviewAfterInfoBean> call(Throwable throwable) {
return null;
}
});

Observable<List<HeightWrongInfoBean>> observableHeightWrong =
Observable.create(new Observable.OnSubscribe<List<HeightWrongInfoBean>>() {
@Override
public void call(final Subscriber<? super List<HeightWrongInfoBean>> subscriber) {
model.loadHeightWrongData(selectIds, lessonIds, unitIds, new
ILoadDataListener() {
@Override
public void success(YQZYReqType api) {
if (mView != null) {
subscriber.onNext(model.getHeightWrongInfoBeanList());
}
}

@Override
public void error(YQZYReqType api, int errorCode, String errorMessage) {
if (mView != null) {
subscriber.onError(new Throwable(errorMessage));
}
}
});
}
}).onErrorReturn(new Func1<Throwable, List<HeightWrongInfoBean>>() {
@Override
public List<HeightWrongInfoBean> call(Throwable throwable) {
return null;
}
});

Observable.zip(observablePreClassPreview, observableReviewAfter, observableHeightWrong,
new Func3<List<PreClassPreviewInfoBean>, List<ReviewAfterInfoBean>,
List<HeightWrongInfoBean>, ArrayList<SynPracticeQuestionBean>>() {
@Override
public ArrayList<SynPracticeQuestionBean>
call(List<PreClassPreviewInfoBean> preClassPreviewInfoBeans,
List<ReviewAfterInfoBean> reviewAfterInfoBeans,
List<HeightWrongInfoBean> heightWrongInfoBeans) {

previewAnalyticData();

reviewAnalyticData();

heightWrongData();

//数据整合
baseBean = new ArrayList<SynPracticeQuestionBean>();
if (previewBeanList != null) {
baseBean.addAll(previewBeanList);
}

if (reviewBeanList != null) {
baseBean.addAll(reviewBeanList);
}

if (heightWrongBeanList != null) {
baseBean.addAll(heightWrongBeanList);
}

mView.loadSuccess();
mView.refreshView(baseBean);
return baseBean;
}
}).subscribe();
}