iOS

#import <TXLiteAVSDK_TRTC/TRTCCloud.h>

@interface TRTCManager : NSObject <TRTCCloudDelegate>
@property (nonatomic, strong) TRTCCloud *trtcCloud;
@end

@implementation TRTCManager

- (instancetype)init {
    self = [super init];
    if (self) {
        // 获取 TRTCCloud 单例
        _trtcCloud = [TRTCCloud sharedInstance];
        // 设置事件回调代理
        _trtcCloud.delegate = self;
    }
    return self;
}
@end

- (void)enterRoomWithSdkAppId:(UInt32)sdkAppId
                       roomId:(UInt32)roomId
                       userId:(NSString *)userId
                      userSig:(NSString *)userSig {
    // 配置房间参数
    TRTCParams *params = [[TRTCParams alloc] init];
    params.sdkAppId = sdkAppId;
    params.roomId = roomId;
    params.userId = userId;
    params.userSig = userSig;
    params.role = TRTCRoleAnchor;  // 主播角色可发布流
    
    // 进入房间，指定场景
    // TRTCAppSceneVideoCall - 视频通话场景
    // TRTCAppSceneAudioCall - 语音通话场景
    // TRTCAppSceneLIVE - 直播场景
    // TRTCAppSceneVoiceChatRoom - 语音聊天室场景
    [self.trtcCloud enterRoom:params appScene:TRTCAppSceneLIVE];
}

#pragma mark - TRTCCloudDelegate

// 进房结果回调
// result > 0: 成功，耗时毫秒数
// result < 0: 失败，错误码
- (void)onEnterRoom:(NSInteger)result {
    if (result > 0) {
        NSLog(@"进房成功，耗时: %ldms", (long)result);
    } else {
        NSLog(@"进房失败，错误码: %ld", (long)result);
    }
}

// 退房回调
// reason: 0 - 主动退出, 1 - 被踢出, 2 - 房间解散
- (void)onExitRoom:(NSInteger)reason {
    NSLog(@"退房，原因: %ld", (long)reason);
}

// 错误回调
- (void)onError:(TXLiteAVError)errCode errMsg:(NSString *)errMsg extInfo:(NSDictionary *)extInfo {
    NSLog(@"错误: %d - %@", errCode, errMsg);
}

// 远端用户进房
- (void)onRemoteUserEnterRoom:(NSString *)userId {
    NSLog(@"远端用户进入: %@", userId);
}

// 远端用户退房
- (void)onRemoteUserLeaveRoom:(NSString *)userId reason:(NSInteger)reason {
    NSLog(@"远端用户离开: %@, 原因: %ld", userId, (long)reason);
}

// 远端用户视频可用状态变化
- (void)onUserVideoAvailable:(NSString *)userId available:(BOOL)available {
    NSLog(@"用户 %@ 视频可用: %@", userId, available ? @"YES" : @"NO");
}

// 远端用户音频可用状态变化
- (void)onUserAudioAvailable:(NSString *)userId available:(BOOL)available {
    NSLog(@"用户 %@ 音频可用: %@", userId, available ? @"YES" : @"NO");
}


#pragma mark - 本地视频

- (void)startLocalVideoWithView:(UIView *)view frontCamera:(BOOL)frontCamera {
    // 设置本地预览渲染参数（可选，SDK 有默认值）
    TRTCRenderParams *renderParams = [[TRTCRenderParams alloc] init];
    renderParams.fillMode = TRTCVideoFillMode_Fill;      // 填充模式：Fill（填充）或 Fit（适应）
    renderParams.mirrorType = TRTCVideoMirrorTypeAuto;   // 镜像模式：Auto（前置镜像）、Enable（始终镜像）、Disable（不镜像）
    [self.trtcCloud setLocalRenderParams:renderParams];
    
    // 开启本地视频预览
    // frontCamera: YES = 前置摄像头, NO = 后置摄像头
    [self.trtcCloud startLocalPreview:frontCamera view:view];
}

- (void)stopLocalVideo {
    [self.trtcCloud stopLocalPreview];
}

- (void)muteLocalVideo:(BOOL)mute {
    [self.trtcCloud muteLocalVideo:TRTCVideoStreamTypeBig mute:mute];
}

- (void)switchCamera:(BOOL)frontCamera {
    [[self.trtcCloud getDeviceManager] switchCamera:frontCamera];
}

#pragma mark - 本地音频

- (void)startLocalAudioWithQuality:(TRTCAudioQuality)quality {
    // quality 选项:
    // TRTCAudioQualitySpeech - 语音模式 
    // TRTCAudioQualityDefault - 默认模式 
    // TRTCAudioQualityMusic - 音乐模式 
    [self.trtcCloud startLocalAudio:quality];
}

- (void)stopLocalAudio {
    [self.trtcCloud stopLocalAudio];
}

- (void)muteLocalAudio:(BOOL)mute {
    [self.trtcCloud muteLocalAudio:mute];
}

#pragma mark - TRTCCloudDelegate

// 远端用户视频可用状态变化
- (void)onUserVideoAvailable:(NSString *)userId available:(BOOL)available {
    if (available) {
        // 订阅远端用户视频流
        // streamType: TRTCVideoStreamTypeBig (主流), TRTCVideoStreamTypeSmall (小流), TRTCVideoStreamTypeSub (屏幕分享)
        [self.trtcCloud startRemoteView:userId streamType:TRTCVideoStreamTypeBig view:self.remoteVideoView];
    } else {
        // 视频不可用时停止订阅
        [self.trtcCloud stopRemoteView:userId streamType:TRTCVideoStreamTypeBig];
    }
}

// 远端用户音频可用状态变化
- (void)onUserAudioAvailable:(NSString *)userId available:(BOOL)available {
    if (available) {
        // 音频自动播放，通过静音控制
        [self.trtcCloud muteRemoteAudio:userId mute:NO];
    }
}

// 手动控制方法
- (void)muteRemoteAudio:(NSString *)userId mute:(BOOL)mute {
    [self.trtcCloud muteRemoteAudio:userId mute:mute];
}

- (void)muteAllRemoteAudio:(BOOL)mute {
    [self.trtcCloud muteAllRemoteAudio:mute];
}