ios - RTCDataChannel无法在iOS上使用

我正在使用RTCDataChannel。但是我通过该通道发送的消息在其他对等方没有收到。

这是代码:

        let audioConstraint : RTCPair = RTCPair(key: "OfferToReceiveAudio", value: "true")
        let videoConstraint : RTCPair = RTCPair(key: "OfferToReceiveVideo", value: "true")
        let dtlsConstraint : RTCPair = RTCPair(key: "DtlsSrtpKeyAgreement", value: "true")
        let mediaContraints : RTCMediaConstraints = RTCMediaConstraints(mandatoryConstraints: [audioConstraint, videoConstraint], optionalConstraints: [ dtlsConstraint])

        RTCPeerConnectionFactory.initializeSSL()
        peerConnection = peerConnectionFactory.peerConnectionWithICEServers(servers, constraints: mediaContraints, delegate: self)

        dataChannels = peerConnection?.createDataChannelWithLabel(channelName,config: nil)
        dataChannels?.delegate = self


        var message : NSData = NSData(base64EncodedString: "helloo")
        var buffer : RTCDataBuffer = RTCDataBuffer(data: message, isBinary: true)
        dataChannels?.sendData(buffer)

最佳答案

解决了吗
两个对等方之一应创建数据通道，另一个应将接收到的数据通道对象附加到其数据通道对象。
发起方应在发送报价之前创建数据通道。希望这会有所帮助