onUserVideoStateChanged property
4.4 User Video State Changed Event
userId
User ID
streamType
Video Stream Type
hasVideo
Whether there is a video stream
reason
Reason for Video Stream Change - Refer to TUIChangeReason Enumeration Definition for details.
Implementation
OnUserVideoStateChanged onUserVideoStateChanged = (String userId,
TUIVideoStreamType streamType, bool hasVideo, TUIChangeReason reason) {};