RxSwift 无法将调用结果类型 '(_) -> Disposable' 转换为预期类型 '(_) ->

Question

我正在尝试使用 RxSwift 将 headerView 添加到 collectionView。

我收到此错误：

Cannot convert call result type '() -> Disposable' to expected type '() ->

在这一行：

obsHeader.asObservable().bind(to: collectionView.rx.items(dataSource: dataSource)).disposed(by: disposeBag)

我不明白如何修复它。有帮助吗？

我post这里剩下的代码：

struct SectionItemObject {
    let collectionViewRecommendations: UICollectionView
    let items: [SFCardViewModelListOfCardsProtocol]
}

struct SectionOfItems {
    var items: [Item]
}

extension SectionOfItems: SectionModelType {

    typealias Item = SectionItemObject

    init(original: SectionOfItems, items: [Item]) {
        self = original
        self.items = items
    }

    init(items: [Item]?) {
        self.items = items ?? [Item]()
    }
}

这就是我在调用观察的方法中写的。

let dataSource = RxCollectionViewSectionedReloadDataSource<SectionOfItems>(configureCell: { (datasource, collectionview, indexPath, i) -> UICollectionViewCell in
        let cell = collectionview.dequeueReusableCell(withReuseIdentifier: "CardView", for: indexPath) as! CardView
        //                self.setCell(card:card,cell:cell)
        cell.lbTitle.text = "TEST"
        return cell
    }, configureSupplementaryView: { (datasource, collectionview, kind, indexPath) -> UICollectionReusableView in
        let section = collectionview.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: "AddNewCardCollectionHeaderView", for: indexPath) as! AddNewCardCollectionHeaderView
        section.backgroundColor = UIColor.orange
        section.collectionViewRecommendations = self.collectionViewRecommendations
        return section
    } )

let item = SectionItemObject(collectionViewRecommendations: self.collectionViewRecommendations!, items: viewModelProtocol.searchedCards.value)
let obsHeader = Variable(SectionOfItems(items: [item]))

obsHeader.asObservable().bind(to: collectionView.rx.items(dataSource: dataSource)).disposed(by: disposeBag)

Answer 1

我敢打赌你的 obsHeader 需要输入 Variable<[SectionOfItems]>

所以就去做吧

let obsHeader = Variable([SectionOfItems(items: [item])])

RxSwift 无法将调用结果类型 '(_) -> Disposable' 转换为预期类型 '(_) ->

RxSwift Cannot convert call result type '(_) -> Disposable' to expected type '(_) ->

uicollectionview

uicollectionreusableview

rx-swift

rx-cocoa

rxdatasources