RXSwift Zip 运算符 N 项通过可枚举

Question

我正在使用 RxSwift 的 zip operator to combine Observable items. I want to combine more than 8 (the max currently supported). Does RxSwift have a zip operator similar to RxJava? - RxJava Zip Operator Documentation

Answer 1

CollectionType.

使用的话可以处理8个以上

Here's the method definition:

extension CollectionType where Generator.Element : ObservableType {
    public func zip<R>(resultSelector: [Generator.Element.E] throws -> R) -> Observable<R> {
        return ZipCollectionType(sources: self, resultSelector: resultSelector)
    }
}

所以不要像这样使用它：

Observable.zip(o1, o2, o3, o4, o5, o6, o7, o8, o9) { ... }

这样使用：

[o1, o2, o3, o4, o5, o6, o7, o8, o9].zip { ... }

RXSwift Zip 运算符 N 项通过可枚举

RXSwift Zip operator N items via an enumerable

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