如何解决switchMapSingle() 不会取消之前的请求
我有一个包含 6000 行的 DB 表“order”,我想使用 switchmap 来创建按编号搜索以取消先前的请求。但它不起作用,它总是返回先前请求的结果。我的代码有什么问题?
示例:输入 1..0..7 返回 107%,然后是 10%,然后是 1%。它应该只返回 107%
disposable.add(
Observable.just(orderParameter)
.debounce(1,TimeUnit.SECONDS)
.distinctUntilChanged()
.switchMapSingle(orderParameter1 -> orderInteractor.getSearchOrderList(orderParameter1))
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(orders -> {
getView().showOrders(orders);
},throwable -> Timber.e(throwable.getMessage())));
@Query("SELECT `order`.order_id as id," +
"client.last_name || ' ' || SUBSTR(client.first_name,1,1) || '. ' || SUBSTR(client.middle_name,1) || '.' as client_name," +
"`order`.status as status," +
"agency.short_name as agency_name," +
"`order`.creation_date as date," +
"`order`.price as price " +
"FROM `order`,agency,client where " +
"`order`.status =:status and agency.id = `order`.agency_id and client.id = `order`.client_id " +
"and `order`.agency_id =:agencyId and `order`.order_id like :orderId")
Single<List<Order>> getordersByStatusAndOrderIdAndAgencyId(String status,String orderId,long agencyId);
public class OrderParameter {
public long searchNumber = -1;
public long agencyId = -1;
}
OrderParameter orderParameter = new OrderParameter();
try {
if (TextUtils.isEmpty(searchText.trim())) {
orderParameter.searchNumber = -1;
} else {
orderParameter.searchNumber = Long.parseLong(searchText);
}
} catch (Exception e) {
}
orderParameter.agencyId = agencyId;
解决方法
在 RxBinding 的帮助下,在 onCreate 中试试这个:
disposable.add(
RxView.clicks(textField).map(v -> {
String searchText = searchTextField.getText().toString();
OrderParameter orderParameter = new OrderParameter();
try {
if (TextUtils.isEmpty(searchText.trim())) {
orderParameter.searchNumber = -1;
} else {
orderParameter.searchNumber = Long.parseLong(searchText);
}
} catch (Exception e) {
}
orderParameter.agencyId = agencyId;
return orderParameter;
})
.debounce(1,TimeUnit.SECONDS)
.distinctUntilChanged()
.switchMapSingle(orderParameter1 ->
orderInteractor.getSearchOrderList(orderParameter1))
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(orders -> {
getView().showOrders(orders);
},throwable -> Timber.e(throwable.getMessage())));
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