Screen Sharing

Add screen sharing in CometChat Calls SDK v5 on Android with presenter controls, permissions, and in-call display behavior.

View screen shares from other participants during a call. The Android SDK can receive and display screen shares initiated from web clients.

The Android Calls SDK does not support initiating screen sharing. Screen sharing can only be started from web clients. Android participants can view shared screens.

How It Works

When a web participant starts screen sharing:

1. The SDK receives the screen share stream
2. The call layout automatically adjusts to display the shared screen prominently
3. Android participants can view the shared content

Listen for Screen Share Events

Monitor when participants start or stop screen sharing:

Kotlin

val callSession = CallSession.getInstance()

callSession.addParticipantEventListener(this, object : ParticipantEventListener() {
    override fun onParticipantStartedScreenShare(participant: Participant) {
        Log.d(TAG, "${participant.name} started screen sharing")
        // Layout automatically adjusts to show shared screen
    }

    override fun onParticipantStoppedScreenShare(participant: Participant) {
        Log.d(TAG, "${participant.name} stopped screen sharing")
        // Layout returns to normal view
    }

    // Other callbacks...
    override fun onParticipantJoined(participant: Participant) {}
    override fun onParticipantLeft(participant: Participant) {}
    override fun onParticipantListChanged(participants: List<Participant>) {}
    override fun onParticipantAudioMuted(participant: Participant) {}
    override fun onParticipantAudioUnmuted(participant: Participant) {}
    override fun onParticipantVideoPaused(participant: Participant) {}
    override fun onParticipantVideoResumed(participant: Participant) {}
    override fun onParticipantStartedRecording(participant: Participant) {}
    override fun onParticipantStoppedRecording(participant: Participant) {}
    override fun onParticipantHandRaised(participant: Participant) {}
    override fun onParticipantHandLowered(participant: Participant) {}
    override fun onDominantSpeakerChanged(participant: Participant) {}
})

Java

CallSession callSession = CallSession.getInstance();

callSession.addParticipantEventListener(this, new ParticipantEventListener() {
    @Override
    public void onParticipantStartedScreenShare(Participant participant) {
        Log.d(TAG, participant.getName() + " started screen sharing");
        // Layout automatically adjusts to show shared screen
    }

    @Override
    public void onParticipantStoppedScreenShare(Participant participant) {
        Log.d(TAG, participant.getName() + " stopped screen sharing");
        // Layout returns to normal view
    }

    // Other callbacks...
});

Check Screen Share Status

Use the isPresenting property on the Participant object to check if someone is sharing their screen:

Kotlin

callSession.addParticipantEventListener(this, object : ParticipantEventListener() {
    override fun onParticipantListChanged(participants: List<Participant>) {
        val presenter = participants.find { it.isPresenting }
        if (presenter != null) {
            Log.d(TAG, "${presenter.name} is currently sharing their screen")
        }
    }
})

Java

callSession.addParticipantEventListener(this, new ParticipantEventListener() {
    @Override
    public void onParticipantListChanged(List<Participant> participants) {
        for (Participant p : participants) {
            if (p.isPresenting()) {
                Log.d(TAG, p.getName() + " is currently sharing their screen");
                break;
            }
        }
    }
});