initialize method

Future<void> initialize()

Implementation

Future<void> initialize() async {
  try {
    final config = <String, dynamic>{
      'iceServers': [{'urls': 'stun:stun.l.google.com:19302'}]
    };

    _peerConnection = await createPeerConnection(config);

    // ICE候选处理
    _peerConnection!.onIceCandidate = (candidate) {
      // 实际应发送给远端
      // print('ICE Candidate: ${candidate.candidate}');
    };

    _peerConnection!.onIceConnectionState = (state) {
      // print('ICE Connection State: $state');
      if (state == RTCIceConnectionState.RTCIceConnectionStateConnected) {
        _isConnected = true;
      }
    };

    final channelConfig = RTCDataChannelInit();
    _dataChannel = await _peerConnection!
        .createDataChannel('dataChannel', channelConfig);

    _dataChannel!.onMessage = (message) {
      onResponseUpdate(message.text);
    };

    final offer = await _peerConnection!.createOffer();
    await _peerConnection!.setLocalDescription(offer);

    // 模拟远程应答（生产环境应通过信令服务器）
    await Future.delayed(Duration(seconds: 1));
    await _peerConnection!.setRemoteDescription(
      RTCSessionDescription(offer.sdp!, 'answer')
    );
  } catch (e) {
    onResponseUpdate('初始化失败: ${e.toString()}');
  }
}