我正在尝试让 CocoaAction 调用 Action。CocoaAction 被触发,但 Action 永远不会被执行。谁能看到我在哪里出错了?
let a = Action<Bool, Void, NoError> { val in
return SignalProducer { sink, _ in
print("I has a value: \(val)")
sink.sendCompleted()
}
}
self.cocoaAction = CocoaAction(a) { _ in
return true
}
self.myButton.addTarget(self.cocoaAction, action: CocoaAction.selector, forControlEvents: .TouchUpInside)