转换的类型有:
RACSiganl 变为 Signal
-
信号的第一种创建方式
<pre><code> let producer = SignalProducer<Any, NoError>.init { (observe, disposable) in
observe.send(value: "hello")
}let subscriber = Observer<Any, NoError>(value: { print("输出 \($0)") }) producer.start(subscriber)
</pre></code>
信号的第二种创建方式
<pre><code>let (signalA, observerA) = Signal<String, NoError>.pipe()
signalA.observeValues { (value) in
print("输出 (value)")
}
observerA.send(value: "signalA")
</pre></code>两个信号都发送消息的时候才会调用
<pre><code>let (signalA, observerA) = Signal<String, NoError>.pipe()
signalA.observeValues { (value) in
print("输出 (value)")
}
observerA.send(value: "signalA")
let (signalB, observerB) = Signal<String, NoError>.pipe()
Signal.combineLatest(signalA,signalB).observeValues { (value) in
print( "收到的值(value.0) + (value.1)")
}
observerA.send(value: "我是信号1")
observerA.sendCompleted()
observerB.send(value: "我是信号2")
observerB.sendCompleted()
</pre></code>实现代理
<pre><code>let redV = RedView()
redV.frame = CGRect(x: 100, y: 100, width: 100, height: 100)
view.addSubview(redV)
redV.signal.observeValues { (value) in
print("接收到 (value)")
}
</pre></code>
RedView中代码
<pre><code>var btn : UIButton?
let (signal,obser) = Signal<Any,NoError>.pipe()
override init(frame: CGRect) {
super.init(frame: frame)
backgroundColor = UIColor.red
btn = UIButton(type: .custom)
btn?.frame = CGRect(x: 0, y: 0, width: 50, height: 50)
btn?.setTitle("哈哈", for: .normal)
addSubview(btn!)
btn!.reactive.controlEvents(.touchUpInside).observeValues({ (_) in
print("redView点击")
self.obser.send(value: "redView代理")
self.obser.sendCompleted()
})
</pre></code>
- 其他
<pre><code>
//nameTf 跟 pwdTf同时有值得时候才会调用
Signal.combineLatest(nameTf.reactive.continuousTextValues, pwdTf.reactive.continuousTextValues).observeValues { (name,pwd) in
print("(name!) ++++ (pwd!)")
}
//button点击事件
btn.reactive.controlEvents(.touchUpInside).observeValues { (_ button) in
print(btn.tag)
}
//输入框字符大于6 按钮才可以点击 第一种写法
Signal.combineLatest(nameTf.reactive.continuousTextValues,pwdTf.reactive.continuousTextValues).map { (name, password) -> Bool in
return ((name?.characters.count)! >= 6 && (password?.characters.count)! >= 6)
}.observeValues { (value) in
btn.isEnabled = value
}
//输入框字符大于6 按钮才可以点击 第二种写法
btn.reactive.isEnabled <~ Signal.combineLatest(nameTf.reactive.continuousTextValues,pwdTf.reactive.continuousTextValues).map { $0?.characters.count ?? 0 >= 6 && $1?.characters.count ?? 0 >= 6
}
//线程
QueueScheduler.main.schedule(after: Date.init(timeIntervalSinceNow: 0.5)) {
print("0.5秒后调用")
}
QueueScheduler.init().schedule(after: Date.init(timeIntervalSinceNow: 0.5)) {
print("子线程调用")
}
//接收通知
NotificationCenter.default.reactive.notifications(forName: Notification.Name(rawValue: "redView")).observeValues({ (noti) in
print(noti.object ?? "通知")
})
</pre></code>
