TRTCChatSalon is based on Tencent Real-Time Communication (TRTC) and Instant Messaging (IM). Its features include:

• A user can create a chat salon and become a speaker, or enter a salon as a listener.
• The room owner can invite a listener to speak as well as remove a speaker.
• A listener can request to speak and become a speaker. A speaker can also become a listener.
• All users can send text and custom messages. Custom messages can be used to send on-screen comments, give likes, and send gifts.

TRTCChatSalon is an open-source class depending on two closed-source Tencent Cloud SDKs. For the specific implementation process, please see Chat Salon (Android).

• TRTC SDK: the TRTC SDK is used as a low-latency audio chat component.
• IM SDK: the AVChatRoom feature of the IM SDK is used to implement chat rooms. The attribute APIs of IM are used to store room information such as the speaker list, and invitation signaling is used to send requests to speak or invite others to speak.

TRTCChatSalon API Overview

Basic SDK APIs

API	Description
sharedInstance	Gets singleton object.
destroySharedInstance	Terminates singleton object.
setDelegate	Sets event callback.
setDelegateHandler	Sets the thread where the event callback is.
login	Logs in.
logout	Logs out.
setSelfProfile	Sets profile.

Room APIs

API	Description
createRoom	Creates room (called by room owner). If the room does not exist, the system will automatically create a room.
destroyRoom	Terminates room (called by room owner).
enterRoom	Enters room (called by listener).
exitRoom	Exits room (called by listener).
getRoomInfoList	Gets room list details.
getUserInfoList	Gets the user information of the specified userId. If the value is null, the information of all users in the room is obtained.

Mic APIs

API	Description
enterSeat	Becomes a speaker (called by room owner or listener).
leaveSeat	Becomes a listener (called by speaker).
pickSeat	Invites a listener to speak (called by room owner).
kickSeat	Removes a speaker (called by room owner).

Local audio APIs

API	Description
startMicrophone	Enables mic capturing.
stopMicrophone	Stops mic capturing.
setAudioQuality	Sets audio quality.
muteLocalAudio	Mutes/Unmutes local audio.
setSpeaker	Turns the speaker on.
setAudioCaptureVolume	Sets mic capturing volume.
setAudioPlayoutVolume	Sets playback volume.

Remote audio APIs

API	Description
muteRemoteAudio	Mutes/Unmutes specified member.
muteAllRemoteAudio	Mutes/Unmutes all members.

Background music and sound effect APIs

API	Description
getAudioEffectManager	Gets background music and audio effect management object TXAudioEffectManager.

Message sending APIs

API	Description
sendRoomTextMsg	Broadcasts text message in room. This API is generally used for on-screen comments.
sendRoomCustomMsg	Sends custom text message.

Invitation signaling APIs

API	Description
sendInvitation	Sends invitation.
acceptInvitation	Accepts invitation.
rejectInvitation	Declines invitation.
cancelInvitation	Cancels invitation.

TRTCChatSalonDelegate API Overview

Common event callback APIs

API	Description
onError	Error
onWarning	Warning
onDebugLog	Log

Room event callback APIs

API	Description
onRoomDestroy	Room termination
onRoomInfoChange	Room information change
onUserVolumeUpdate	User volume

Speaker list change callback APIs

API	Description
onAnchorEnterSeat	Someone became a speaker after requesting or being invited by the room owner.
onAnchorLeaveSeat	Someone became a listener or was moved to listeners by the room owner.
onSeatMute	The room owner muted a speaker.

Callback APIs for room entry/exit by listeners

API	Description
onAudienceEnter	A listener entered the room.
onAudienceExit	A listener exited the room.

Message event callback APIs

API	Description
onRecvRoomTextMsg	Receipt of text message
onRecvRoomCustomMsg	Receipt of custom message

Signaling event callback APIs

API	Description
onReceiveNewInvitation	Receipt of invitation
onInviteeAccepted	Invitation accepted by invitee
onInviteeRejected	Invitation declined by invitee
onInvitationCancelled	Invitation canceled by inviter

Basic SDK APIs

sharedInstance

This API is used to get a TRTCChatSalon singleton object.

public static synchronized TRTCChatSalon sharedInstance(Context context);

The parameters are as detailed below:

Parameter	Type	Description
context	Context	Android context, which will be converted to ApplicationContext for the calling of system APIs

destroySharedInstance

This API is used to terminate a TRTCChatSalon singleton object.

Note：

After the instance is terminated, the externally cached TRTCChatSalon instance can no longer be used. You need to call sharedInstance again to get a new instance.

public static void destroySharedInstance();

setDelegate

This API is used to set the event callbacks of TRTCChatSalon. You can use TRTCChatSalonDelegate to get different status notifications of TRTCChatSalon.

public abstract void setDelegate(TRTCChatSalonDelegate delegate);

Note：

setDelegate is the delegate callback of TRTCChatSalon.

setDelegateHandler

This API is used to set the thread where the event callback is.

public abstract void setDelegateHandler(Handler handler);

The parameters are as detailed below:

Parameter	Type	Description
handler	Handler	Status notifications in TRTCChatSalon will be sent to the handler thread you specify.

login

This API is used to log in.

public abstract void login(int sdkAppId,
String userId, String userSig,
TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
sdkAppId	int	You can view the SDKAppID via Application Management > Application Info in the TRTC console.
userId	String	ID of current user, which is a string that can contain only letters (a-z and A-Z), digits (0–9), hyphens (-), and underscores (_).
userSig	String	Tencent Cloud's proprietary security signature. For more information on how to get it, please see UserSig.
callback	ActionCallback	Callback for login. The code will be 0 if login succeeds.

logout

This API is used to log out.

public abstract void logout(TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
callback	ActionCallback	Callback for logout. The code is 0 if logout succeeds.

setSelfProfile

This API is used to set profile.

public abstract void setSelfProfile(String userName, String avatarURL, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
userName	String	Nickname
avatar	String	Profile photo address
callback	ActionCallback	Callback for profile setting. The code is 0 if the operation succeeds.

Room APIs

createRoom

This API is used to create a room (called by room owner).

public abstract void createRoom(int roomId, TRTCChatSalonDef.RoomParam roomParam, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
roomId	int	Room ID. You need to assign and manage the IDs in a centralized manner. Multiple roomID values can be aggregated into a chat salon room list. Currently, Tencent Cloud does not provide management services for chat salon room lists. Please manage the list by yourself.
roomParam	RoomParam	Room information, such as room name, speaker list information, and cover information
callback	ActionCallback	Callback for room creation result. The code is 0 if the operation succeeds.

The process of creating a chat salon and becoming a speaker is as follows:

1. A user calls createRoom to create a chat salon, passing in room attributes (e.g., room ID and whether listeners require room owner’s consent to speak).
2. After creating the room, the user calls enterSeat to become a speaker.
3. The user receives an onAnchorEnterSeat notification that someone became a speaker, and mic capturing will be enabled automatically.

destroyRoom

This API is used to terminate a room (called by room owner).

public abstract void destroyRoom(TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
callback	ActionCallback	Callback for room termination result. The code is 0 if the operation succeeds.

enterRoom

This API is used to enter a room (called by listener).

public abstract void enterRoom(int roomId, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
roomId	int	Room ID
callback	ActionCallback	Callback for room entry result. The code is 0 if the operation succeeds.

The process of entering a room as a listener is as follows:

1. A user gets the latest chat salon list from your server. The list may contain the roomId and room information of multiple chat salons.
2. The user selects a chat salon, and calls enterRoom with the room ID passed in to enter.
3. After entering the room, the user receives an onRoomInfoChange notification about room attribute change from the component. The attributes can be recorded, and corresponding changes can be made to the UI, including room name, whether room owner’s consent is required for listeners to speak, etc.
4. The user receives an onAnchorEnterSeat notification that someone became a speaker.

exitRoom()

This API is used to exit a room.

public abstract void exitRoom(TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
callback	ActionCallback	Callback for room exit result. The code is 0 if the operation succeeds.

getRoomInfoList

This API is used to get room list details. The room name and cover are set by the room owner via roomInfo when calling createRoom().

Note：

If both the room list and room information are managed on your server, you can ignore this parameter.

public abstract void getRoomInfoList(List<Integer> roomIdList, TRTCChatSalonCallback.RoomInfoCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
roomIdList	List&dxlt;Integer&dxgt;	Room ID list
callback	RoomInfoCallback	Callback for room details

getUserInfoList

This API is used to get the user information of a specified userId.

public abstract void getUserInfoList(List<String> userIdList, TRTCChatSalonCallback.UserListCallback userlistcallback);

The parameters are as detailed below:

Parameter	Type	Description
userIdList	List	IDs of the users to query. If this parameter is null, the information of all users in the room is obtained.
userlistcallback	UserListCallback	Callback for user details

Mic APIs

enterSeat

This API is used to become a speaker (called by room owner or listener).

Note：

After a user becomes a speaker, all members in the room will receive an onAnchorEnterSeat notification.

public abstract void enterSeat(TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
callback	ActionCallback	Callback for operation

Calling this API will immediately modify the speaker list. In cases where listeners need the room owner’s consent to speak, you can call sendInvitation first to send a request and, after receiving onInvitationAccept, call enterSeat.

leaveSeat

This API is used to become a listener (called by speaker).

Note：

After a speaker becomes a listener, all members in the room will receive an onAnchorLeaveSeat notification..

public abstract void leaveSeat(TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
callback	ActionCallback	Callback for operation

pickSeat

This API is used to invite a listener to speak (called by room owner).

Note：

After a listener becomes a speaker following the room owner's invitation, all members in the room will receive an onAnchorEnterSeat notification.

public abstract void pickSeat(String userId, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
userID	String	User ID
callback	ActionCallback	Callback for operation

Calling this API will immediately modify the speaker list. In cases where the room owner needs listeners’ consent to make them speakers, you can call sendInvitation first to send a request and, after receiving onInvitationAccept, call pickSeat.

kickSeat

This API is used to remove a speaker (called by room owner).

Note：

After a speaker is removed, all members in the room will receive an onAnchorLeaveSeat notification.

public abstract void kickSeat(String userId, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
userId	String	User ID of the speaker to remove
callback	ActionCallback	Callback for operation

Calling this API will immediately modify the speaker list.

Local Audio APIs

startMicrophone

This API is used to enable mic capturing.

public abstract void startMicrophone();

stopMicrophone

This API is used to stop mic capturing.

public abstract void stopMicrophone();

setAudioQuality

This API is used to set audio quality.

public abstract void setAudioQuality(int quality);

The parameters are as detailed below:

Parameter	Type	Description
quality	int	Audio quality. For more information, please see TRTC SDK.

muteLocalAudio

This API is used to mute/unmute the local audio.

public abstract void muteLocalAudio(boolean mute);

The parameters are as detailed below:

Parameter	Type	Description
mute	boolean	Mutes/Unmutes. For more information, please see TRTC SDK.

setSpeaker

This API is used to turn the speaker on.

public abstract void setSpeaker(boolean useSpeaker);

The parameters are as detailed below:

Parameter	Type	Description
useSpeaker	boolean	true: speaker; false: receiver

setAudioCaptureVolume

This API is used to set the mic capturing volume.

public abstract void setAudioCaptureVolume(int volume);

The parameters are as detailed below:

Parameter	Type	Description
volume	int	Capturing volume. Value range: 0-100 (default: 100)

setAudioPlayoutVolume

This API is used to set the playback volume.

public abstract void setAudioPlayoutVolume(int volume);

The parameters are as detailed below:

Parameter	Type	Description
volume	int	Playback volume. Value range: 0-100 (default: 100)

muteRemoteAudio

This API is used to mute/unmute a specified member.

public abstract void muteRemoteAudio(String userId, boolean mute);

The parameters are as detailed below:

Parameter	Type	Description
userId	String	Specified user ID
mute	boolean	true: mute; false: unmute

muteAllRemoteAudio

This API is used to mute/unmute all members.

public abstract void muteAllRemoteAudio(boolean mute);

The parameters are as detailed below:

Parameter	Type	Description
mute	boolean	true: mute; false: unmute

Background Music and Audio Effect APIs

getAudioEffectManager

This API is used to get the background music and audio effect management object TXAudioEffectManager.

public abstract TXAudioEffectManager getAudioEffectManager();

Message Sending APIs

sendRoomTextMsg

This API is used to broadcast a text message in the room, which is generally used for on-screen comments.

public abstract void sendRoomTextMsg(String message, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
message	String	Text message
callback	ActionCallback	Callback for sending result

sendRoomCustomMsg

This API is used to send custom text messages.

public abstract void sendRoomCustomMsg(String cmd, String message, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
cmd	String	Custom command word used to distinguish between different message types
message	String	Text message
callback	ActionCallback	Callback for sending result

Invitation Signaling APIs

sendInvitation

This API is used to send an invitation.

public abstract String sendInvitation(String cmd, String userId, String content, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
cmd	String	Custom command of business
userId	String	Invitee’s user ID
content	String	Invitation content
callback	ActionCallback	Callback for sending result

Returned value:

Returned Value	Type	Description
inviteId	String	Invitation ID

acceptInvitation

This API is used to accept an invitation.

public abstract void acceptInvitation(String id, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
id	String	Invitation ID
callback	ActionCallback	Callback for sending result

rejectInvitation

This API is used to decline an invitation.

public abstract void rejectInvitation(String id, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
id	String	Invitation ID
callback	ActionCallback	Callback for sending result

cancelInvitation

This API is used to cancel an invitation.

public abstract void cancelInvitation(String id, TRTCChatSalonCallback.ActionCallback callback);

The parameters are as detailed below:

Parameter	Type	Description
id	String	Invitation ID
callback	ActionCallback	Callback for sending result

TRTCChatSalonDelegate Event Callback APIs

Common Event Callback APIs

onError

Callback for error.

Note：

This callback indicates that the SDK encountered an unrecoverable error. Such errors must be listened for, and UI reminders should be sent to users if necessary.

void onError(int code, String message);

The parameters are as detailed below:

Parameter	Type	Description
code	int	Error code
message	String	Error message

onWarning

Callback for warning.

void onWarning(int code, String message);

The parameters are as detailed below:

Parameter	Type	Description
code	int	Error code
message	String	Warning message

onDebugLog

Callback for log.

void onDebugLog(String message);

The parameters are as detailed below:

Parameter	Type	Description
message	String	Log information

Room Event Callback APIs

onRoomDestroy

Callback for room termination. When the owner terminates the room, all users in the room will receive this callback.

void onRoomDestroy(String roomId);

The parameters are as detailed below:

Parameter	Type	Description
roomId	String	Room ID

onRoomInfoChange

Callback for successful room entry. The information in roomInfo is passed in by the room owner during room creation.

void onRoomInfoChange(TRTCChatSalonDef.RoomInfo roomInfo);

The parameters are as detailed below:

Parameter	Type	Description
roomInfo	RoomInfo	Room information

onUserVolumeUpdate

Callback of the volume of each member in the room after the volume reminder is enabled.

void onUserVolumeUpdate(String userId, int volume);

The parameters are as detailed below:

Parameter	Type	Description
userId	String	User ID
volume	int	Volume. Value range: 0-100

Speaker List Callback APIs

onAnchorEnterSeat

Someone became a speaker after requesting or being invited by the room owner.

void onAnchorEnterSeat(TRTCChatSalonDef.UserInfo user);

The parameters are as detailed below:

Parameter	Type	Description
user	UserInfo	Details of the user who became a speaker

onAnchorLeaveSeat

A speaker became a listener or was moved to listeners by the room owner.

void onAnchorLeaveSeat(TRTCChatSalonDef.UserInfo user);

The parameters are as detailed below:

Parameter	Type	Description
user	UserInfo	Details of the user who became a listener

onSeatMute

The room owner muted a speaker.

void onSeatMute(String userId, boolean isMute);

The parameters are as detailed below:

Parameter	Type	Description
userId	String	ID of the speaker who was muted
isMute	boolean	true: muted; false: unmuted

Callback APIs for Room Entry/Exit by Listener

onAudienceEnter

A listener entered the room.

void onAudienceEnter(TRTCChatSalonDef.UserInfo userInfo);

The parameters are as detailed below:

Parameter	Type	Description
userInfo	UserInfo	Information of the user who entered the room

onAudienceExit

A listener exited the room.

void onAudienceExit(TRTCChatSalonDef.UserInfo userInfo);

The parameters are as detailed below:

Parameter	Type	Description
userInfo	UserInfo	Information of the listener who exited the room

Message Event Callback APIs

onRecvRoomTextMsg

A text message was received.

void onRecvRoomTextMsg(String message, TRTCChatSalonDef.UserInfo userInfo);

The parameters are as detailed below:

Parameter	Type	Description
message	String	Text message
userInfo	UserInfo	User information of sender

onRecvRoomCustomMsg

A custom message was received.

void onRecvRoomCustomMsg(String cmd, String message, TRTCChatSalonDef.UserInfo userInfo);

The parameters are as detailed below:

Parameter	Type	Description
cmd	String	Custom command word used to distinguish between different message types
message	String	Text message
userInfo	UserInfo	User information of sender

Invitation Signaling Event Callbacks

onReceiveNewInvitation

A new invitation was received.

void onReceiveNewInvitation(String id, String inviter, String cmd, String content);

The parameters are as detailed below:

Parameter	Type	Description
id	String	Invitation ID
inviter	String	Inviter’s user ID
cmd	String	Custom command word specified by business
content	String	Content specified by business

onInviteeAccepted

The invitee accepted the invitation.

void onInviteeAccepted(String id, String invitee);

The parameters are as detailed below:

Parameter	Type	Description
id	String	Invitation ID
invitee	String	Invitee’s user ID

onInviteeRejected

The invitee declined the invitation.

void onInviteeRejected(String id, String invitee);

The parameters are as detailed below:

Parameter	Type	Description
id	String	Invitation ID
invitee	String	Invitee’s user ID

onInvitationCancelled

The inviter canceled the invitation.

void onInvitationCancelled(String id, String inviter);

The parameters are as detailed below:

Parameter	Type	Description
id	String	Invitation ID
inviter	String	Inviter’s user ID

onInvitationTimeout

The invitation timed out.

void onInvitationTimeout(String id);

The parameters are as detailed below:

Parameter	Type	Description
id	String	Invitation ID