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Version: 2.3.X

Video Call

1. Introduction​

Video calling is performed with the VideoCall Component.

This component manages the communication between a user and an agent (video assistance). Its main processes are:

  • Internal camera, microphone, and permission management.
  • Connection to video services.

Refer to the Quickstart section for basic SDK integration steps. This section adds information specific to launching this component.

2. Dependency​

The component-specific dependency is:

implementation "com.facephi.androidsdk:videocall_component:$version"

3. Available Controllers​

ControllerDescription
VideoCallControllerMain controller for video calls
StopVideoCallControllerController to stop screen sharing and the ongoing call

4. Quick Launch​

Once the SDK is initialized and a new operation has been created, you can launch the component using either controller.

val response = SDKController.launch(
    VideoCallController(VideoCallConfigurationData(...))
)

when (response) {
    is SdkResult.Error   -> Napier.d("ERROR - ${response.error.name}")
    is SdkResult.Success -> response.data
}

5. Basic Configuration​

To launch the component, create a VideoCallConfigurationData object. No parameters are required for basic usage:

VideoCallConfigurationData()

6. Receiving the Result​

The launch returns an SdkResult. Handle success and error as follows:

when (response) {
    is SdkResult.Error   -> Napier.d("ERROR - ${response.error}")
    is SdkResult.Success -> response.data
}

6.1 Handling Errors​

Errors are returned as a VideoCallError object. Possible values include:

  • ACTIVITY_RESULT_MSG_ERROR: The result of the activity is incorrect.
  • APPLICATION_CONTEXT_ERROR: Required application context is null
  • CANCEL_BY_USER: User has cancelled the process
  • CANCEL_LAUNCH: A general cancellation of the SDK has been done.
  • COMPONENT_LICENSE_ERROR: The license of the component is not correct
  • EMPTY_LICENSE: License String is empty
  • FACE_DETECTION_TIMEOUT: No face detected
  • FETCH_DATA_ERROR: Error in the result collection
  • FLOW_ERROR: Error in the flow process
  • INITIALIZATION_ERROR: Initialisation error
  • MANAGER_NOT_INITIALIZED: Managers are nil
  • NETWORK_CONNECTION: Error in internet connection
  • NO_DATA_ERROR: Input data is null
  • OPERATION_NOT_CREATED: No operation in progress
  • PERMISSION_DENIED: User has denied permissions
  • SOCKET_ERROR: Error in the connection of services
  • TIMEOUT: Timeout in the process
  • VIDEO_ERROR: Error in video processing
  • UNKNOWN_ERROR
  • VIDEO_RECORDING_ACTIVE: Cannot start because the video recording process is active.

6.2 Handling Success – data​

On SdkResult.Success, you receive a VideoCallResult object. If the sharingScreen flag is active, screen sharing has been enabled.

7. Advanced Information​

7.1 Advanced Component Configuration​

Create a VideoCallConfigurationData object with the following optional fields. These are typically only needed for on-premise server setups, as they are populated automatically otherwise:

  • url: Video socket endpoint URL.
  • apiKey: API key for socket authentication.
  • tenantId: Tenant identifier for the current client.
  • activateScreenSharing: Enable screen sharing within the call.
  • timeout: Time in milliseconds to wait for an agent to answer.

7.2 Screen Sharing​

When screen sharing is enabled, the sharingScreen property in the VideoCallResult will be true, indicating the call is still active:

val response = SDKController.launch(
    VideoCallController(
        VideoCallConfigurationData(activateScreenSharing = true)
    )
)

when (response) {
    is SdkResult.Error   -> Napier.d("VideoCall: ERROR - ${response.error.name}")
    is SdkResult.Success -> Napier.d("VideoCall: OK - ScreenSharing: ${response.data.sharingScreen}")
}

To stop the call, use the StopVideoCallController:

val stopController = StopVideoCallController()
stopController.setOutput { state ->
    Napier.d("VIDEOCALL: SCREEN SHARING STATE: ${state.name}")
}
viewModelScope.launch {
    SDKController.launch(stopController)
}

Possible state values include:

AGENT_HANGUP,
PERMISSION_ERROR,
NETWORK_CONNECTION_ERROR,
UNKNOWN_ERROR,
SHARING,
CANCEL_BY_USER,
FINISH

The call is fully terminated when state == FINISH.

8. Component Customization​

Beyond SDK-level settings (Advanced Settings), this component allows UI customization.

8.1 Texts​

To override default strings, include an XML file in your app:

<!-- Waiting -->
    <string name="video_call_component_text_waiting_agent_title">Conectando con un asistente…</string>
    <!-- Process -->
    <string name="video_call_component_agent">Asistente</string>
    <string name="video_call_component_local">Tú</string>
    <string name="video_call_component_exit">Salir</string>
    <string name="video_call_component_text_finish">La video asistencia ha finalizado</string>
    <string name="video_call_component_accesibility_phone">Teléfono</string>
    <string name="video_call_component_accesibility_switch">Cambiar cámara</string>
    <!-- Diagnostic -->
    <string name="video_call_component_restart">Repetir llamada</string>
    <string name="video_call_component_timeout_title">Tiempo superado</string>
    <string name="video_call_component_timeout_desc">No se ha podido contactar con un asistente.</string>
    <string name="video_call_component_internal_error_title">Hubo un problema técnico</string>
    <string name="video_call_component_internal_error_desc">No se ha podido contactar con un asistente.</string>

8.2 Colors​

<color name="colorVideoCallActionsBackground">#30333d</color>
<color name="colorVideoCallButtonBackground">#FF526080</color>

8.3 Animations​

To override Lottie animations, place files with the same names in your res/raw/ folder:

video_call_anim_waiting.json

8.4 External Views​

It is possible to completely modify the component screens while maintaining their functionality and navigation. To do so, the following interfaces must be implemented:

Error diagnosis screen:


interface IVideoCallErrorDiagnosticView {
    @Composable
    fun Content(
        error: VideoCallError,
        onRetry: () -> Unit,
        onClose: () -> Unit,
    )
}

Once the classes that implement the interfaces have been created, the "customViews" parameter can be added at component launch to be used in the SDK.

9. Logs​

Filter console logs for this component with: "VIDEO_CALL:"