我想知道我在swift 3.0中提到的NSNotificationCenter的以下代码行可以转换为RxSwif / RxCocoa
let imageDataDict:[String: UIImage] = ["image": image]
// Post a notification
NSNotificationCenter.defaultCenter().postNotificationName(notificationName, object: nil, userInfo: imageDataDict)
// Register to receive notification in your class
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(self.showSpinningWheel(_:)), name: notificationName, object: nil)
// handle notification
func showSpinningWheel(notification: NSNotification) {
if let image = notification.userInfo?["image"] as? UIImage {
// do something with your image
}
}
最佳答案
我假设您正在问如何在ReactiveCocoa中执行此操作。
在ReactiveCocoa中,所有扩展都可以通过.reactive
成员获得:
extension Notification.Name {
static let myNotification = Notification.Name("myNotification")
}
NotificationCenter.default.reactive.notifications(forName: .myNotification)
.take(duringLifetimeOf: self)
.observeValues {
if let image = $0.userInfo?["image"] as? UIImage {
// do something with your image
}
}
NotificationCenter.default.post(name: .myNotification, object: nil, userInfo: ["image": image])
编辑:感谢@jjoelson提到了对观察结果的处理。
关于ios - react 迅速的新版本NSNotificationCenter,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47285169/