Active Speaker Indication - iOS

Active Speaker indication feature in VideoSDK let you know, which participant in a meeting is active speaker. This feature can be particularly useful in larger meetings or webinars, where there may be many participants and it can be difficult to tell who is speaking.

Whenever any participant speaks in meeting, onSpeakerChanged event will trigger with the participant id of the active speaker.

For example, the meeting is running with Alice and Bob. Whenever any of them speaks, onSpeakerChanged event will trigger and return the speaker participantId.

Event

Swift

extension MeetingViewController: MeetingEventListener {
/// Called when speaker is changed
/// - Parameter participantId: participant id of the speaker, nil when no one is speaking.
func onSpeakerChanged(participantId: String?) {

    // show indicator for active speaker
    if let participant = participants.first(where: { $0.id == participantId }),
        // show indication for active speaker
        // ex. show border color
        // cell.contentView.layer.borderColor = UIColor.blue.cgColor : UIColor.clear.cgColor
    }

    // hide indicator for others participants
    let otherParticipants = participants.filter { $0.id != participantId }
    for participant in otherParticipants {
        // ex. remove border color
        //cell.contentView.layer.borderColor = UIColor.clear.cgColor
    }
}

API Reference

The API references for all the methods and events utilised in this guide are provided below.

• onSpeakerChanged()