我无法让这个解决方案发挥作用: https ://github.com/liuznsn/RxMoyaPaginationNetworking
也许有人可以告诉我错误在哪里。加载变量永远不会变为假。我想问题出在可观察的请求中,但我不知道为什么。
class PaginationNetworkModel<T1: Mappable>: NSObject {
let refreshTrigger = PublishSubject<Void>()
let loadNextPageTrigger = PublishSubject<Void>()
let loading = Variable<Bool>(false)
let elements = Variable<[T1]>([])
var offset:Int = 0
let error = PublishSubject<Swift.Error>()
private let disposeBag = DisposeBag()
override init() {
super.init()
let refreshRequest = loading.asObservable()
.sample(refreshTrigger)
.flatMap { [unowned self] loading -> Observable<[T1]> in
if loading {
return Observable.empty()
} else {
return self.loadData(offset: self.offset)
}
}
let nextPageRequest = loading.asObservable()
.sample(loadNextPageTrigger)
.flatMap { [unowned self] loading -> Observable<[T1]> in
if loading {
return Observable.empty()
} else {
self.offset += 1
return self.loadData(offset: self.offset)
}
}
let request = Observable
.of(refreshRequest, nextPageRequest)
.merge()
.shareReplay(1)
let response = request.flatMap { events -> Observable<[T1]> in
request
.do(onError: { error in
self.error.onNext(error)
}).catchError({ error -> Observable<[T1]> in
Observable.empty()
})
}.shareReplay(1)
Observable
.combineLatest(request, response, elements.asObservable()) { [unowned self] request, response, elements in
return self.offset == 0 ? response : elements + response
}
.sample(response)
.bind(to: elements)
.addDisposableTo(rx_disposeBag)
Observable
.of(request.map { _ in true },
response.map { $0.count == 0 },
error.map { _ in false }
)
.merge()
.bind(to: loading)
.addDisposableTo(rx_disposeBag)
}
func loadData(offset: Int) -> Observable<[T1]> {
return Observable.empty()
}