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。

- (void)joinRTCRoomWithModel:(VideoCallRoomUserModel *)localUserModel
                    rtcToken:(NSString *)rtcToken {
        // 初始化 RTC Video 对象
    // Initialize the RTC Video object
    self.rtcRTCVideo = [ByteRTCVideo createRTCVideo:appID
                                           delegate:self
                                         parameters:@{}];
        // 初始化 RTC Room 对象
    // Initialize the RTC Room object
    self.rtcRoom = [self.rtcRTCVideo createRTCRoom:roomId];
    self.rtcRoom.delegate = self;
        // 开启麦克风采集
    // Enable microphone capture
    [self.rtcRTCVideo startAudioCapture];
        // 根据预览页配置开启/关闭相机采集
    // Enable/disable camera capture according to the preview page configuration
    if (preSetting.isEnableVideo) {
        [self.rtcRTCVideo startVideoCapture];
    } else {
        [self.rtcRTCVideo stopVideoCapture];
    }
        // 根据预览页配置开启/关闭音频推送
    // Enable/disable audio push according to the preview page configuration
    if (preSetting.isEnableAudio) {
        [self.rtcRoom publishStream:ByteRTCMediaStreamTypeAudio];
    } else {
        [self.rtcRoom unpublishStream:ByteRTCMediaStreamTypeAudio];
    }
        //设置音频路由模式，扬声器/听筒
    //Set the audio routing mode, speaker/earpiece
    [self.rtcRTCVideo setAudioPlaybackDevice:preSetting.playback];
        //开启/关闭发言者音量键控
    //Turn on/off speaker volume keying
    ByteRTCAudioPropertiesConfig *audioPropertiesConfig = [[ByteRTCAudioPropertiesConfig alloc] init];
    audioPropertiesConfig.interval = 1000;
    [self.rtcRTCVideo enableAudioPropertiesReport:audioPropertiesConfig];
        //加入房间，开始连麦,需要申请AppId和Token
    //Join the room, start connecting the microphone, you need to apply for AppId and Token
    ByteRTCUserInfo *userInfo = [[ByteRTCUserInfo alloc] init];
    userInfo.userId = localUserModel.uid;
    NSDictionary *extraInfo = @{
        @"user_name": localUserModel.name,
        @"user_id": localUserModel.uid
    };
    userInfo.extraInfo = [extraInfo yy_modelToJSONString];
    ByteRTCRoomConfig *config = [[ByteRTCRoomConfig alloc] init];
    config.profile = ByteRTCRoomProfileCommunication;
    // 开启自动推送
    // enable automatic push
    config.isAutoPublish = YES;
    // 开启自动订阅音视频
    // Enable automatic subscription of audio and video
    config.isAutoSubscribeAudio = YES;
    config.isAutoSubscribeVideo = YES;
    [self.rtcRoom joinRoomByToken:rtcToken userInfo:userInfo roomConfig:config];
}
objectivec

- (void)leaveRTCRoom {
    //离开频道
    //Leave the channel
    [self.rtcRTCVideo stopAudioCapture];
    [self.rtcRoom leaveRoom];
    [self.rtcRoom destroy];
    self.rtcRoom = nil;
}
objectivec

• 短时间断网
  无需处理。RTC SDK 会补发断网期间丢失的消息。
  例如：本地用户网络从 WIFI 切换到 5G，在网络切换中有远端用户加入房间。当本地用户网络切换成功后，就会收到 RTC SDK -rtcRoom:onUserJoined:elapsed: 回调。
• 长时间断网，关键代码：

- (void)rtcRoom:(ByteRTCRoom *)rtcRoom onRoomStateChanged:(NSString *)roomId withUid:(NSString *)uid state:(NSInteger)state extraInfo:(NSString *)extraInfo {
    NSDictionary *dic = [self dictionaryWithJsonString:extraInfo];
    NSInteger joinType = -1;
    if ([dic isKindOfClass:[NSDictionary class]]) {
        NSString *joinTypeStr = [NSString stringWithFormat:@"%@", dic[@"join_type"]];
        joinType = joinTypeStr.integerValue;
    }
    // joinType '0'为首次进房，'1'为重连进房 ;state '0'为加入房间成功
    // joinType '0' is the first time entering the room, '1' is the reconnection entering the room; state '0' means join the room successfully
    if (state == 0 && joinType == 1) {
        // 执行业务重连API，更新业务状态
        // Execute business re-API, update business status
        [Networking reconnectBlock:^(RTMACKModel * _Nonnull model) {
            // do something
        }];
    }
}
objectivec

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