SwiftEventBus

允许组件之间进行发布-订阅式通信，而无需组件明确地了解彼此

特性

安装

Cocoapods

pod 'SwiftEventBus', :tag => '5.1.0', :git => 'https://github.com/cesarferreira/SwiftEventBus.git'

Carthage

github "cesarferreira/SwiftEventBus" == 5.1.0

版本

5.+ 适用于 swift 5
3.+ 适用于 swift 4.2
2.+ 适用于 swift 3
1.1.0 适用于 swift 2.2

用法

1 - 准备订阅者

订阅者实现事件处理方法，这些方法将在收到事件时被调用。

SwiftEventBus.onMainThread(target, name: "someEventName") { result in
    // UI thread
}

// or

SwiftEventBus.onBackgroundThread(target, name:"someEventName") { result in
    // API Access
}

2 - 发布事件

从代码的任何部分发布事件。所有与事件类型匹配的订阅者都将收到它。

SwiftEventBus.post("someEventName")

带有参数的Eventbus

发布事件

SwiftEventBus.post("personFetchEvent", sender: Person(name:"john doe"))

期望参数

SwiftEventBus.onMainThread(target, name:"personFetchEvent") { result in
    let person : Person = result.object as Person
    println(person.name) // will output "john doe"
}

从后台线程向主线程发布事件

引用Apple官方文档

常规通知中心在发布通知的线程中传递通知

关于此限制，@nunogoncalves 实现了该功能并提供了可用的示例

@IBAction func clicked(sender: AnyObject) {
     count++
     SwiftEventBus.post("doStuffOnBackground")
 }

 @IBOutlet weak var textField: UITextField!

 var count = 0

 override func viewDidLoad() {
     super.viewDidLoad()

     SwiftEventBus.onBackgroundThread(self, name: "doStuffOnBackground") { notification in
         println("doing stuff in background thread")
         SwiftEventBus.postToMainThread("updateText")
     }

     SwiftEventBus.onMainThread(self, name: "updateText") { notification in
         self.textField.text = "\(self.count)"
     }
}

//Perhaps on viewDidDisappear depending on your needs
override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)

    SwiftEventBus.unregister(self)
}

注销

从目标中删除所有观察者

SwiftEventBus.unregister(target)

从目标中删除具有相同名称的观察者

SwiftEventBus.unregister(target, "someEventName")