如下是一个总体接入流程，详细细节请参见 RTC服务开通指南

主播与主播连麦pk

主播与观众连麦互动

/**
 * 加入RTC房间并初始化参数
 * @param token 加入 RTC 房间的 token
 * @param roomId 加入 RTC 房间的 id
 * @param userId 加入 RTC 房间的 userId
 * @param isHost true：业务上主播 false：业务上观众
 */
public void joinRTCRoom(String token, String roomId, String userId, boolean isHost) {
    // 初始化 RTCVideo 对象
    mRTCVideo = RTCVideo.createRTCVideo(applicationContext, appId, mRTCVideoEventHandler, null, null);
    // 初始化 RTCRoom 对象
    mRTCRoom = mRTCVideo.createRTCRoom(roomId);
    mRTCRoom.setRTCRoomEventHandler(mRTCRoomEventHandler);
    // 设置主播为可见，观众为隐身
    mRTCRoom.setUserVisibility(isHost);
    // 加入房间时主播需要开启麦克风、相机，观众需要关闭麦克风、相机
    if (isHost) {
        mRTCVideo.startVideoCapture();
        mRTCVideo.startAudioCapture();
        // 设置本地渲染和编码镜像
        mRTCVideo.setLocalVideoMirrorType(MirrorType.MIRROR_TYPE_RENDER_AND_ENCODER);
    } else {
        mRTCVideo.stopVideoCapture();
        mRTCVideo.stopAudioCapture();
    }
    // 设置音频路由模式
    mRTCVideo.setDefaultAudioRoute(AudioRoute.AUDIO_ROUTE_SPEAKERPHONE);
    // 开启发言者音量监听
    AudioPropertiesConfig audioPropertiesConfig = new AudioPropertiesConfig(300);
    mRTCVideo.enableAudioPropertiesReport(audioPropertiesConfig);
    // 加入房间，开始连麦，需要申请AppId和Token
    UserInfo userInfo = new UserInfo(userId, null);
    RTCRoomConfig roomConfig = new RTCRoomConfig(ChannelProfile.CHANNEL_PROFILE_INTERACTIVE_PODCAST,
            true, true, true);
    mRTCRoom.joinRoom(token, userInfo, roomConfig);
}
Java

 private final IRTCVideoEventHandler mRTCVideoEventHandler = new IRTCVideoEventHandler(){
    @Override
    public void onLocalAudioPropertiesReport(LocalAudioPropertiesInfo[] audioPropertiesInfos) {
        super.onLocalAudioPropertiesReport(audioPropertiesInfos);
        // 本地用户音量回调
    }
    @Override
    public void onRemoteAudioPropertiesReport(RemoteAudioPropertiesInfo[] audioPropertiesInfos, int totalRemoteVolume) {
        super.onRemoteAudioPropertiesReport(audioPropertiesInfos, totalRemoteVolume);
        // 远端用户音量回调
    }
};
private final IRTCRoomEventHandler mRTCRoomEventHandler = new IRTCRoomEventHandler() {
    @Override
    public void onRoomStateChanged(String roomId, String uid, int state, String extraInfo) {
        // 收到 RTC 加入房间结果
    }
}
Java

/**
 * 开启跨房间转推
 * @param roomId 对方 RTC 房间的 id
 * @param token 加入对方 RTC 房间所需的 token，有业务服务器生成并下发
 */
public void startForwardStream(String roomId, String token) {
    ForwardStreamInfo forwardStreamInfo = new ForwardStreamInfo(roomId, token);
    mRTCRoom.startForwardStreamToRooms(Collections.singletonList(forwardStreamInfo));
}

private final IRTCRoomEventHandler mRTCRoomEventHandler = new IRTCRoomEventHandler() {

    /**
     * 房间内新增远端媒体流流的回调
     * @param uid 用户的用户 ID
     * @param type 远端媒体流的类型
     */
    @Override
    public void onUserPublishStream(String uid, MediaStreamType type) {
        if (type == MediaStreamType.RTC_MEDIA_STREAM_TYPE_AUDIO) {
            // 只关心有视频的情况
            return;
        }
        TextureView textureView = new TextureView(applicationContext);
        VideoCanvas videoCanvas = new VideoCanvas(textureView,VideoCanvas.RENDER_MODE_HIDDEN);
        RemoteStreamKey streamKey = new RemoteStreamKey(roomId,uid,StreamIndex.STREAM_INDEX_MAIN);
        mRTCVideo.setRemoteVideoCanvas(streamKey,videoCanvas);
    }
};

/**
 * 结束跨房间转推
 */
public void stopForwardStream() {
    mRTCRoom.stopForwardStreamToRooms();
}
Java

/**
 * 主播和观众连麦成功
 * @param userId 上麦用户的 ID
 */
public void onReceivedJoinInteract(String userId) {
    // loginUserId 是业务上本端登录用户的 id
    if (!TextUtils.equals(userId, loginUserId)) {
        return;
    }
    VideoEncoderConfig videoEncoderConfig = new VideoEncoderConfig();
    videoEncoderConfig.width = width;
    videoEncoderConfig.height = height;
    videoEncoderConfig.frameRate = frameRate;
    videoEncoderConfig.maxBitrate = maxBitrate;
    videoEncoderConfig.minBitrate = minBitrate;
    mRTCVideo.setVideoEncoderConfig(videoEncoderConfig);
    // 观众开启相机、麦克风采集
    mRTCVideo.startVideoCapture();
    mRTCVideo.startAudioCapture();
    // 观众设置为可见状态
    mRTCRoom.setUserVisibility(true);
    // 观众开启音视频推流
    mRTCRoom.publishStream(MediaStreamType.RTC_MEDIA_STREAM_TYPE_BOTH);
}
/**
 * 收到观众下麦
 * @param userId userID 下麦用户的 ID
 */
public void onReceivedLeaveInteract(String userId) {
    // loginUserId 是业务上本端登录用户的 id
    if (!TextUtils.equals(userId, loginUserId)) {
        return;
    }
    // 观众开启相机、麦克风采集
    mRTCVideo.stopVideoCapture();
    mRTCVideo.stopAudioCapture();
    // 观众设置为隐身状态
    mRTCRoom.setUserVisibility(false);
    // 观众开启音视频推流
    mRTCRoom.unpublishStream(MediaStreamType.RTC_MEDIA_STREAM_TYPE_BOTH);
}
Java