将多个不同的观察值组合成一个观察值

让我们看看我的输入和输出示例。

import RxSwift
import RxCocoa

class ModelView {

    private let api: ApiType

    // inputs
    let inType: Variable<MWItemQueryType>
    let inFilterRetailers: Variable<Set<MWRetailer>>
    let inFilterColors: Variable<Set<MWColor>>
    let inFilterPriceRanges: Variable<Set<MWPriceRange>>

    // outputs
    let outQuery: Observable<MWItemQuery>

    init(initialType: MWItemQueryType, api: ApiType) {
        self.api = api
        self.inType = Variable(initialType)
        self.inFilterRetailers = Variable(Set<MWRetailer>())
        self.inFilterColors = Variable(Set<MWColor>())
        self.inFilterPriceRanges = Variable(Set<MWPriceRange>())

        // TODO How to setup outQuery signal here
    }
}

所以我对发出信号的设置outQuery有问题 MWItemQuery MWItemQuery 当其中一个输入参数改变时,必须发出信号。这个 MWItemQuery