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我点名MQTTController与共享实例和私人init方法如何在init函数中将委托设置为self?
class MQTTController:NSObject, CocoaMQTTDelegate {
static let sharedInstance = MQTTController()
var clientID:String
var mqtt:CocoaMQTT
private override init() {
clientID = "xyz-" + String(ProcessInfo().processIdentifier)
mqtt = CocoaMQTT(clientID: clientID, host: "mqttcontroller.mqtt.net", port: 1883)
mqtt.username = "myusername"
mqtt.password = "mypassword"
mqtt.willMessage = CocoaMQTTWill(topic: "/will", message: "dieout")
mqtt.keepAlive = 30
mqtt.cleanSession = true
MQTTController.isConnecting = true
mqtt.delegate = self //Error at this Line "'self' used before super.init call"
mqtt.connect()
}
}
在这里,我知道,我可以创造另一种方法来设置委托,并调用mqtt.connect()
只是想知道类是存在的,我不要任何解决方案不必创建并调用另一种方法。
感谢另一种选择 –