RxSearchResultsUpdatingProxyの私的実装
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import UIKit | |
import RxSwift | |
import RxCocoa | |
extension Reactive where Base: UISearchController { | |
var searchResultUpdater: DelegateProxy<UISearchController, UISearchResultsUpdating> { | |
return RxSearchResultUpdatingProxy.proxy(for: base) | |
} | |
var queryText: Observable<String> { | |
return Observable.merge(Observable.just(""), | |
RxSearchResultUpdatingProxy.proxy(for: base).didUpdateSearchResultSubject.map { $0.searchBar.text ?? "" }) | |
.distinctUntilChanged() | |
} | |
} | |
class RxSearchResultUpdatingProxy: DelegateProxy<UISearchController, UISearchResultsUpdating>, DelegateProxyType, UISearchResultsUpdating { | |
static func currentDelegate(for object: UISearchController) -> UISearchResultsUpdating? { | |
return object.searchResultsUpdater | |
} | |
static func setCurrentDelegate(_ delegate: UISearchResultsUpdating?, to object: UISearchController) { | |
object.searchResultsUpdater = delegate | |
} | |
static func registerKnownImplementations() { self.register { RxSearchResultUpdatingProxy(searchController: $0) } } | |
init(searchController: UISearchController) { | |
super.init(parentObject: searchController, delegateProxy: RxSearchResultUpdatingProxy.self) | |
} | |
let didUpdateSearchResultSubject = PublishSubject<UISearchController>() | |
func updateSearchResults(for searchController: UISearchController) { | |
_forwardToDelegate?.updateSearchResults?(for: searchController) | |
didUpdateSearchResultSubject.onNext(searchController) | |
} | |
deinit { didUpdateSearchResultSubject.onCompleted() } | |
} |
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