iOS使用RxSwift跟踪异步网络调用何时完成
我正在努力将RxSwift集成到我的项目中 我编写了一个异步网络请求,其结果是在回调闭包上传递 这是我的网络功能iOS使用RxSwift跟踪异步网络调用何时完成,ios,rx-swift,Ios,Rx Swift,我正在努力将RxSwift集成到我的项目中 我编写了一个异步网络请求,其结果是在回调闭包上传递 这是我的网络功能 func discoverMovies(for url: String, withPage page: Int, success: @escaping(Bool)->()) { let requestUrl = "\(url)&page=\(page)" requestGETURL(requestUrl, success: { (js
func discoverMovies(for url: String, withPage page: Int, success: @escaping(Bool)->()) {
let requestUrl = "\(url)&page=\(page)"
requestGETURL(requestUrl, success: { (json) in
self.createOrUpdateMoviesList(from: json)
success(true)
}) { (error) in
print("Could not download due to \(error)")
success(false)
}
}
我的问题是,我们如何注册一个观察网络调用结果的可观察对象(成功为真或假),以便我们可以根据结果编写附加句柄。附加代码将仅在网络完成后执行。我将把您的函数包装成Rx函数:
func discoverMovies(for url: String, withPage page: Int) -> Observable<MoviesList>{
Observable.create{ observer in
let requestUrl = "\(url)&page=\(page)"
self.requestGETURL(requestUrl, success: { (json) in
// your createOrUpdateMoviesList(from:) function returns a MoviesList
let moviesList = self.createOrUpdateMoviesList(from: json)
observer.onNext(moviesList)
observer.onCompleted()
}) { (error) in
print("Could not download due to \(error)")
observer.onError(error)
}
return Disposables.create()
}
}
func otherFunction(withMovies list: MoviesList) -> Observable<Something> {
// blah blah blah...
}
您可以确定,只有在DiscoveryMovies获得成功结果时,才会调用Other函数。我会将您的函数包装为Rx函数:
func discoverMovies(for url: String, withPage page: Int) -> Observable<MoviesList>{
Observable.create{ observer in
let requestUrl = "\(url)&page=\(page)"
self.requestGETURL(requestUrl, success: { (json) in
// your createOrUpdateMoviesList(from:) function returns a MoviesList
let moviesList = self.createOrUpdateMoviesList(from: json)
observer.onNext(moviesList)
observer.onCompleted()
}) { (error) in
print("Could not download due to \(error)")
observer.onError(error)
}
return Disposables.create()
}
}
func otherFunction(withMovies list: MoviesList) -> Observable<Something> {
// blah blah blah...
}
您可以确定,只有在DiscoveryMovies获得成功的情况下,才会调用Other函数。非常感谢,非常满意。这里的关键是flatmap函数。我会尽力去实现它,很多时候我都能达到理想状态。这里的关键是flatmap函数。我会努力实现它