NERtcChannelEventCallback class - nertc library

Constructors

NERtcChannelEventCallback()

Properties

hashCode → int: The hash code for this object.
read-only, inherited
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed.
inherited
onAudioHasHowling() → void: Get notified when howling is detected. Check if howling occurs due to the close proximity of the device. When a howling signal is detected, the callback is triggered until the howling stops If the upper layer of an app receives a message sent by the callback, howling occurs and users are prompted to mute the microphone or directly mute the microphone. Howling detection is used for VoIP scenarios. Music scenarios do not support howling detection.
onAudioRecording(int code, String filePath) → void: Get notified of the audio recording state. code the recording status. For more information about the recording status, see NERtcAudioRecordingCode filePath Path where audio recordings are saved.
onClientRoleChange(int oldRole, int newRole) → void: Get notified when a user changes the role. Get notified when a user changes the role after joining a room in live streaming. For information about roles, see NERtcClientRole. oldRole The role before newRole the role after
onConnectionStateChanged(int state, int reason) → void: Get notified when the connection state changes state The current network connection state NERtcConnectionState reason the reason why the network state changes ConnectionStateChangeReason.
onConnectionTypeChanged(int newConnectionType) → void: Get notified when the local network type changes
onDisconnect(int reason) → void: Get notified when the SDK gets disconnected from the server.
onError(int code) → void: Get notified when a warning occurs. The callback is triggered to report a warning related to network or media when the SDK is running. In most cases, the app ignores warning messages and the SDK resumes running
onFirstAudioDataReceived(int uid) → void: Get notified when the first audio frame published from a remote user is received uid ID of a remote user
onFirstAudioFrameDecoded(int uid) → void: Get notified when the first audio frame published from a remote user is decoded.
onFirstVideoDataReceived(int uid) → void: Get notified when the first video frame published from a remote user is received
onFirstVideoFrameDecoded(int uid, int width, int height) → void: Get notified when the first video frame published from a remote user is decoded.
onJoinChannel(int result, int channelId, int elapsed, int uid) → void: Get notified when a user joins a room
onLeaveChannel(int result) → void: Get notified when a user leaves a room.
onLiveStreamState(String taskId, String pushUrl, int liveState) → void: Get notified of the live streaming status. taskId live streaming task ID pushUrl URL for a streaming push task liveState live streaming status NERtcLiveStreamState
onLocalAudioVolumeIndication(int volume) → void: Occurs when the system indicates the volume of the current local audio. This callback is disabled by default. You can enable the callback by calling the enableAudioVolumeIndication method. If the callback is enabled and a local user speaks, the SDK triggers the callback based on the time interval specified in the enableAudioVolumeIndication method. If the local user mutes the local audio by calling muteLocalAudio, the SDK no longer indicates the audio volume.
onLocalPublishFallbackToAudioOnly(bool isFallback, int streamType) → void: Occurs when the published local media stream falls back to an audio-only stream due to poor network conditions or switches back to an audio and video stream after the network condition improves.
onMediaRelayReceiveEvent(int event, int code, String channelName) → void: Occurs when relayed media streams are received.
onMediaRelayStatesChange(int state, String channelName) → void: Occurs when the state of the media stream relay changes
onReceiveSEIMsg(int userID, String seiMsg) → void: Get notified when SEI information is received.
onReconnectingStart() → void: Get notified when reconnection starts. For information about the result, see onReJoinChannel and onDisconnect
onReJoinChannel(int result) → void: Get notified when a user rejoins a channel In some cases, clients may get disconnected from the server due to network failures, the SDK will automatically reconnect to the server and trigger this callback method.
onRemoteAudioVolumeIndication(List<NERtcAudioVolumeInfo> volumeList, int totalVolume) → void: Occurs when the system indicates the active speaker and the audio volume in the channel. This callback is disabled by default. You can enable the callback by calling the enableAudioVolumeIndication method. If the callback is enabled, the SDK triggers the callback based on the time interval specified in the enableAudioVolumeIndication method regardless of whether any participants speak in the channel.
onRemoteSubscribeFallbackToAudioOnly(int uid, bool isFallback, int streamType) → void: Occurs when the subscribed remote media stream falls back to audio-only stream due to poor network conditions or switches back to the audio and video stream after the network conditions improve. If you call NERtcEngine.setRemoteSubscribeFallbackOption and set the option to NERtcStreamFallbackOptions.audioOnly , this callback is triggered when the subscribed remote media stream falls back to audio-only mode due to poor downstream network conditions, or when the subscribed remote media stream switches back to the audio and video stream after the downstream network conditions improve.
onUserAudioMute(int uid, bool muted) → void: Get notified when a remote user mutes the audio stream.
onUserAudioStart(int uid) → void: Get notified when a remote user turns on an audio stream.
onUserAudioStop(int uid) → void: Get notified when a remote user turns off an audio stream.
onUserJoined(int uid) → void: Get notified when a user joins a room.
onUserLeave(int uid, int reason) → void: Get notified when a user leaves a room.
onUserSubStreamVideoStart(int uid, int maxProfile) → void: Get notified when a remote user turns on a video substream.
onUserSubStreamVideoStop(int uid) → void: Get notified when a remote user turns on a video substream.
onUserVideoMute(int uid, bool muted) → void: Get notified when a remote user unpublishes a video stream.
onUserVideoProfileUpdate(int uid, int maxProfile) → void: Get notified when the video quality is updated
onUserVideoStart(int uid, int maxProfile) → void: Get notified when a remote user turns on a video stream.
onUserVideoStop(int uid) → void: Get notified when a remote user turns off a video stream.
onWarning(int code) → void: Get notified when an error occurs The callback is triggered to report an error related to network or media when the SDK is running. In most cases, the SDK cannot fix the issues and resume running. The SDK requires the app to take action or informs users of the issue.
toString() → String: A string representation of this object.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited

NERtcChannelEventCallback class Null safety

Constructors

Properties

Methods

Operators

nertc library