RtcEngineEventHandler class Null safety

主回调事件。

RtcEngineEventHandler 接口类用于 SDK 向 App 发送回调事件通知， App 通过继承该接口类的方法获取 SDK 的事件通知。 接口类的所有方法都有缺省（空）实现， App 可以根据需要只继承关心的事件。在回调方法中，App 不应该做耗时或者调用可能会引起阻塞的 API（如 SendMessage），否则可能影响 SDK 的运行。

Constructors

RtcEngineEventHandler({WarningCallback? warning, ErrorCallback? error, ApiCallCallback? apiCallExecuted, UidWithElapsedAndChannelCallback? joinChannelSuccess, UidWithElapsedAndChannelCallback? rejoinChannelSuccess, RtcStatsCallback? leaveChannel, UserAccountCallback? localUserRegistered, UserInfoCallback? userInfoUpdated, ClientRoleCallback? clientRoleChanged, UidWithElapsedCallback? userJoined, UserOfflineCallback? userOffline, ConnectionStateCallback? connectionStateChanged, NetworkTypeCallback? networkTypeChanged, EmptyCallback? connectionLost, TokenCallback? tokenPrivilegeWillExpire, EmptyCallback? requestToken, AudioVolumeCallback? audioVolumeIndication, UidCallback? activeSpeaker, ElapsedCallback? firstLocalAudioFrame, VideoFrameCallback? firstLocalVideoFrame, UidWithMutedCallback? userMuteVideo, VideoSizeCallback? videoSizeChanged, RemoteVideoStateCallback? remoteVideoStateChanged, LocalVideoStateCallback? localVideoStateChanged, RemoteAudioStateCallback? remoteAudioStateChanged, LocalAudioStateCallback? localAudioStateChanged, FallbackCallback? localPublishFallbackToAudioOnly, FallbackWithUidCallback? remoteSubscribeFallbackToAudioOnly, AudioRouteCallback? audioRouteChanged, RectCallback? cameraFocusAreaChanged, RectCallback? cameraExposureAreaChanged, FacePositionCallback? facePositionChanged, RtcStatsCallback? rtcStats, NetworkQualityCallback? lastmileQuality, NetworkQualityWithUidCallback? networkQuality, LastmileProbeCallback? lastmileProbeResult, LocalVideoStatsCallback? localVideoStats, LocalAudioStatsCallback? localAudioStats, RemoteVideoStatsCallback? remoteVideoStats, RemoteAudioStatsCallback? remoteAudioStats, EmptyCallback? audioMixingFinished, AudioMixingStateCallback? audioMixingStateChanged, SoundIdCallback? audioEffectFinished, RtmpStreamingStateCallback? rtmpStreamingStateChanged, EmptyCallback? transcodingUpdated, StreamInjectedStatusCallback? streamInjectedStatus, StreamMessageCallback? streamMessage, StreamMessageErrorCallback? streamMessageError, EmptyCallback? mediaEngineLoadSuccess, EmptyCallback? mediaEngineStartCallSuccess, MediaRelayStateCallback? channelMediaRelayStateChanged, MediaRelayEventCallback? channelMediaRelayEvent, VideoFrameWithUidCallback? firstRemoteVideoFrame, UidWithElapsedCallback? firstRemoteAudioFrame, UidWithElapsedCallback? firstRemoteAudioDecoded, UidWithMutedCallback? userMuteAudio, UrlWithErrorCallback? streamPublished, UrlCallback? streamUnpublished, TransportStatsCallback? remoteAudioTransportStats, TransportStatsCallback? remoteVideoTransportStats, UidWithEnabledCallback? userEnableVideo, UidWithEnabledCallback? userEnableLocalVideo, VideoFrameWithUidCallback? firstRemoteVideoDecoded, EnabledCallback? microphoneEnabled, EmptyCallback? connectionInterrupted, EmptyCallback? connectionBanned, AudioQualityCallback? audioQuality, EmptyCallback? cameraReady, EmptyCallback? videoStopped, MetadataCallback? metadataReceived, ElapsedCallback? firstLocalAudioFramePublished, ElapsedCallback? firstLocalVideoFramePublished, StreamPublishStateCallback? audioPublishStateChanged, StreamPublishStateCallback? videoPublishStateChanged, StreamSubscribeStateCallback? audioSubscribeStateChanged, StreamSubscribeStateCallback? videoSubscribeStateChanged, RtmpStreamingEventCallback? rtmpStreamingEvent, UserSuperResolutionEnabledCallback? userSuperResolutionEnabled, UploadLogResultCallback? uploadLogResult, EmptyCallback? airPlayIsConnected, dynamic virtualBackgroundSourceEnabled})
Constructs a RtcEngineEventHandler

Properties

activeSpeaker ↔ UidCallback?
监测到活跃用户回调。 [...]
read / write
apiCallExecuted ↔ ApiCallCallback?
API 方法已执行回调。 [...]
read / write
audioEffectFinished ↔ SoundIdCallback?
本地音效文件播放已结束回调。 [...]
read / write
audioMixingFinished ↔ EmptyCallback?
本地音乐文件播放已结束回调。 [...]
read / write
audioMixingStateChanged ↔ AudioMixingStateCallback?
本地用户的音乐文件播放状态改变。 调用 RtcEngine.startAudioMixing 播放混音音乐文件后，当音乐文件的播放状态发生改变时，会触发该回调。 [...]
read / write
audioPublishStateChanged ↔ StreamPublishStateCallback?
音频发布状态改变回调。 [...]
read / write
audioQuality ↔ AudioQualityCallback?
远端音频质量回调。 [...]
read / write
audioRouteChanged ↔ AudioRouteCallback?
语音路由已变更回调。 [...]
read / write
audioSubscribeStateChanged ↔ StreamSubscribeStateCallback?
音频订阅状态发生改变回调。 [...]
read / write
audioVolumeIndication ↔ AudioVolumeCallback?
提示频道内谁正在说话、说话者音量及本地用户是否在说话的回调。 [...]
read / write
cameraExposureAreaChanged ↔ RectCallback?
摄像头曝光区域已改变回调。 [...]
read / write
cameraFocusAreaChanged ↔ RectCallback?
摄像头对焦区域已改变回调。 [...]
read / write
cameraReady ↔ EmptyCallback?
摄像头就绪回调。 [...]
read / write
channelMediaRelayEvent ↔ MediaRelayEventCallback?
跨频道媒体流转发事件回调。 [...]
read / write
channelMediaRelayStateChanged ↔ MediaRelayStateCallback?
跨频道媒体流转发状态发生改变回调。 [...]
read / write
clientRoleChanged ↔ ClientRoleCallback?
直播场景下用户角色已切换回调。如从观众切换为主播，反之亦然。 [...]
read / write
connectionBanned ↔ EmptyCallback?
网络连接已被服务器禁止回调。 [...]
read / write
connectionInterrupted ↔ EmptyCallback?
网络连接中断回调。 [...]
read / write
connectionLost ↔ EmptyCallback?
网络连接中断，且 SDK 无法在 10 秒内连接服务器回调。 [...]
read / write
connectionStateChanged ↔ ConnectionStateCallback?
网络连接状态已改变回调。 [...]
read / write
error ↔ ErrorCallback?
发生错误回调。 [...]
read / write
facePositionChanged ↔ FacePositionCallback?
报告本地人脸检测结果。 [...]
read / write
firstLocalAudioFrame ↔ ElapsedCallback?
已发送本地音频首帧回调。 [...]
read / write
firstLocalAudioFramePublished ↔ ElapsedCallback?
已发布本地音频首帧回调。 [...]
read / write
firstLocalVideoFrame ↔ VideoFrameCallback?
已显示本地视频首帧回调。 [...]
read / write
firstLocalVideoFramePublished ↔ ElapsedCallback?
已发布本地视频首帧回调。 [...]
read / write
firstRemoteAudioDecoded ↔ UidWithElapsedCallback?
已解码远端音频首帧回调。 [...]
read / write
firstRemoteAudioFrame ↔ UidWithElapsedCallback?
已接收远端音频首帧回调。 [...]
read / write
firstRemoteVideoDecoded ↔ VideoFrameWithUidCallback?
已完成远端视频首帧解码回调。 [...]
read / write
firstRemoteVideoFrame ↔ VideoFrameWithUidCallback?
已显示远端视频首帧回调。 [...]
read / write
hashCode → int
The hash code for this object. [...]
read-only, inherited
joinChannelSuccess ↔ UidWithElapsedAndChannelCallback?
加入频道回调。 [...]
read / write
lastmileProbeResult ↔ LastmileProbeCallback?
通话前网络上下行 Last mile 质量探测报告回调。 [...]
read / write
lastmileQuality ↔ NetworkQualityCallback?
通话前网络上下行 last mile 质量报告回调。 [...]
read / write
leaveChannel ↔ RtcStatsCallback?
离开频道回调。 [...]
read / write
localAudioStateChanged ↔ LocalAudioStateCallback?
本地音频状态发生改变回调。 [...]
read / write
localAudioStats ↔ LocalAudioStatsCallback?
通话中本地音频流的统计信息回调。 [...]
read / write
localPublishFallbackToAudioOnly ↔ FallbackCallback?
本地发布流已回退为音频流回调。 [...]
read / write
localUserRegistered ↔ UserAccountCallback?
本地用户成功注册 User Account 回调。 [...]
read / write
localVideoStateChanged ↔ LocalVideoStateCallback?
本地视频状态发生改变回调。 [...]
read / write
localVideoStats ↔ LocalVideoStatsCallback?
通话中本地视频流的统计信息回调。 [...]
read / write
mediaEngineLoadSuccess ↔ EmptyCallback?
媒体引擎成功加载的回调。
read / write
mediaEngineStartCallSuccess ↔ EmptyCallback?
媒体引擎成功启动的回调。
read / write
metadataReceived ↔ MetadataCallback?
接收端已接收 Metadata。 [...]
read / write
microphoneEnabled ↔ EnabledCallback?
麦克风状态已改变回调。 [...]
read / write
networkQuality ↔ NetworkQualityWithUidCallback?
通话中每个用户的网络上下行 last mile 质量报告回调。 [...]
read / write
networkTypeChanged ↔ NetworkTypeCallback?
本地网络类型发生改变回调。 [...]
read / write
rejoinChannelSuccess ↔ UidWithElapsedAndChannelCallback?
重新加入频道回调。 [...]
read / write
remoteAudioStateChanged ↔ RemoteAudioStateCallback?
远端音频状态发生改变回调。 [...]
read / write
remoteAudioStats ↔ RemoteAudioStatsCallback?
通话中远端音频流的统计信息回调。 [...]
read / write
remoteAudioTransportStats ↔ TransportStatsCallback?
通话中远端音频流传输的统计信息回调。 [...]
read / write
remoteSubscribeFallbackToAudioOnly ↔ FallbackWithUidCallback?
远端订阅流已回退为音频流回调或因网络质量改善，恢复为音视频流。 [...]
read / write
remoteVideoStateChanged ↔ RemoteVideoStateCallback?
远端用户视频状态发生已变化回调。 [...]
read / write
remoteVideoStats ↔ RemoteVideoStatsCallback?
通话中远端视频流的统计信息回调。 [...]
read / write
remoteVideoTransportStats ↔ TransportStatsCallback?
通话中远端视频流传输的统计信息回调。 [...]
read / write
requestToken ↔ EmptyCallback?
Token 过期回调。 [...]
read / write
rtcStats ↔ RtcStatsCallback?
当前通话统计回调。 该回调在通话中每两秒触发一次。 [...]
read / write
rtmpStreamingEvent ↔ RtmpStreamingEventCallback?
RTMP 推流事件回调。 [...]
read / write
rtmpStreamingStateChanged ↔ RtmpStreamingStateCallback?
RTMP 推流状态发生改变回调。该回调返回本地用户调用 RtcEngine.addPublishStreamUrl 或 RtcEngine.removePublishStreamUrl 方法的结果。 [...]
read / write
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited
streamInjectedStatus ↔ StreamInjectedStatusCallback?
输入在线媒体流状态回调。该回调表明向直播输入的外部视频流的状态。 [...]
read / write
streamMessage ↔ StreamMessageCallback?
接收到对方数据流消息的回调。 [...]
read / write
streamMessageError ↔ StreamMessageErrorCallback?
接收对方数据流消息发生错误的回调。 [...]
read / write
streamPublished ↔ UrlWithErrorCallback?
开启旁路推流的结果回调。 [...]
read / write
streamUnpublished ↔ UrlCallback?
停止旁路推流的结果回调。 [...]
read / write
tokenPrivilegeWillExpire ↔ TokenCallback?
Token 服务即将过期回调。 [...]
read / write
transcodingUpdated ↔ EmptyCallback?
旁路推流设置被更新回调。 [...]
read / write
userEnableLocalVideo ↔ UidWithEnabledCallback?
远端用户开/关本地视频采集回调。 [...]
read / write
userEnableVideo ↔ UidWithEnabledCallback?
其他用户开/关视频模块回调。 [...]
read / write
userInfoUpdated ↔ UserInfoCallback?
远端用户信息已更新回调。 [...]
read / write
userJoined ↔ UidWithElapsedCallback?
远端用户（通信场景）/主播（直播场景）加入当前频道回调。 [...]
read / write
userMuteAudio ↔ UidWithMutedCallback?
远端用户停止/恢复发送音频流回调。 [...]
read / write
userMuteVideo ↔ UidWithMutedCallback?
远端用户停止/恢复发送视频流回调。 [...]
read / write
userOffline ↔ UserOfflineCallback?
远端用户（通信场景）/主播（直播场景）离开当前频道回调。 [...]
read / write
videoPublishStateChanged ↔ StreamPublishStateCallback?
视频发布状态改变回调。 [...]
read / write
videoSizeChanged ↔ VideoSizeCallback?
本地或远端视频大小或旋转信息发生改变回调。 [...]
read / write
videoStopped ↔ EmptyCallback?
视频功能停止回调。 [...]
read / write
videoSubscribeStateChanged ↔ StreamSubscribeStateCallback?
视频订阅状态发生改变回调。 [...]
read / write
virtualBackgroundSourceEnabled ↔ dynamic
报告虚拟背景是否成功开启。（beta 功能） [...]
read / write
warning ↔ WarningCallback?
发生警告回调。 [...]
read / write

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
process(String methodName, List data) → void
toString() → String
A string representation of this object. [...]
inherited

Operators

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