I am trying to bind a delegate this is what was done
/** Delegate Proxy **/
func castOrThrow<T>(_ resultType: T.Type, _ object:Any) throws -> T {
guard let returnValue = object as? T else {
throw RxCocoaError.castingError(object: object, targetType: resultType)
}
return returnValue
}
@objc
public protocol TestEventGeneratorDelegate:class {
@objc optional func asyncEventResult(int:Int)
}
open class TestEventGenerator {
public var delegate: TestEventGeneratorDelegate?
func asyncCall() {
DispatchQueue.global().asyncAfter(deadline: .now() + .seconds(1)) { [weak self] in
guard let self = self else { return }
self.delegate?.asyncEventResult!(int: 0)
}
}
}
extension TestEventGenerator: HasDelegate {
public typealias Delegate = TestEventGeneratorDelegate
}
open class RxTestDelegateProxy : DelegateProxy<TestEventGenerator,TestEventGeneratorDelegate>,
DelegateProxyType,
TestEventGeneratorDelegate {
public weak private(set) var testGenerator: TestEventGenerator?
public init(testEventGenerator: ParentObject) {
self.testGenerator = testEventGenerator
super.init(parentObject: testEventGenerator, delegateProxy: RxTestDelegateProxy.self)
}
public static func registerKnownImplementations() {
self.register { RxTestDelegateProxy(testEventGenerator: $0) }
}
}
extension Reactive where Base: TestEventGenerator {
public var delegate: DelegateProxy<TestEventGenerator, TestEventGeneratorDelegate> {
return RxTestDelegateProxy.proxy(for: base)
}
public var asyncEventResult: Observable<Int> {
let source = delegate.methodInvoked(#selector(TestEventGeneratorDelegate.asyncEventResult(int:)))
.map { (a) in
return try castOrThrow(Int.self,a[0])
}
return source
}
}
/** Delegate Proxy **/
Then when I use it
let testEventGenerator = TestEventGenerator()
textEventGenerator.rx.asyncEventResult.subscribe.... // subscribe here no rx found?
testEventGenerator.asyncCall() // call and wait for the observable to return to the delegate
It doesn't compile and says there is no such rx
I have to bind it because the person who wrote the API didn't use a callback to return the value but rather a delegate.
This is example of how he wrote the code and how I want to wrap it.
Is there a way to bind a delegate that requires a kick off from asyncCall()?
so I can chain it using flatmapLatest in a promiseLike way?
Thanks let me know!
I followed these tutorial: How to convert Delegate to Observable RxSwift? and https://blog.ippon.fr/2018/11/13/rxswift-how-to-make-your-favorite-delegate-based-apis-reactive/
