NSNotification.Name 结合extension和struct 根据不同业务模块细化通知名，一目了然， 项目中这样管理通知名。
import Foundation
extension Notification.Name {
struct User {
static let CancelLogin = Notification.Name(rawValue: "org.taozel.notification.name.user.cancelLogin")
}
struct Community {
static let RefreshPostList = Notification.Name(rawValue: "org.taozel.notification.name.community.refreshPostList")
}
struct IM {
static let login = Notification.Name(rawValue: "org.taozel.notification.im.login")
}
}
这样调用
NotificationCenter.default.post(name: NSNotification.Name.Community.RefreshPostList, object: nil)
