Added in API level 29

MbmsGroupCallSessionCallback

public interface MbmsGroupCallSessionCallback

android.telephony.mbms.MbmsGroupCallSessionCallback

A callback class that is used to receive information from the middleware on MBMS group-call services. An instance of this object should be passed into MbmsGroupCallSession#create(Context, int, Executor, MbmsGroupCallSessionCallback).

Summary

Public methods

default void onAvailableSaisUpdated(List<Integer> currentSais, List<List<Integer>> availableSais)

Indicates that the list of currently available SAIs has been updated.

default void onError(int errorCode, String message)

Called by the middleware when it has detected an error condition.

default void onMiddlewareReady()

Called to indicate that the middleware has been initialized and is ready.

default void onServiceInterfaceAvailable(String interfaceName, int index)

Called soon after the app calls MbmsGroupCallSession#create.

Public methods

onAvailableSaisUpdated

Added in API level 29 
public void onAvailableSaisUpdated (List<Integer> currentSais, 
                List<List<Integer>> availableSais)

Indicates that the list of currently available SAIs has been updated. The app may use this information to filter the list of group calls when displaying available group calls to the user by matching the SAIs with a list of group calls separately negotiated with the carrier. The app may also report the aggregate list of SAIs to the group call application server so that a network entity can determine when, and where to activate the broadcast of particular group calls.

Parameters
currentSais List: The available SAIs on the current cell. This value cannot be null.
availableSais List: A list of lists of available SAIS in neighboring cells, where each list contains the available SAIs in an individual cell. This value cannot be null.

onError

Added in API level 29 
public void onError (int errorCode, 
                String message)

Called by the middleware when it has detected an error condition. The possible error codes are listed in MbmsErrors.

Parameters
errorCode int: The error code. Value is MbmsErrors.ERROR_NO_UNIQUE_MIDDLEWARE, MbmsErrors.ERROR_MIDDLEWARE_LOST, MbmsErrors.ERROR_MIDDLEWARE_NOT_BOUND, MbmsErrors.InitializationErrors.ERROR_APP_PERMISSIONS_NOT_GRANTED, MbmsErrors.InitializationErrors.ERROR_DUPLICATE_INITIALIZE, MbmsErrors.InitializationErrors.ERROR_UNABLE_TO_INITIALIZE, MbmsErrors.GeneralErrors.ERROR_MIDDLEWARE_NOT_YET_READY, MbmsErrors.GeneralErrors.ERROR_OUT_OF_MEMORY, MbmsErrors.GeneralErrors.ERROR_MIDDLEWARE_TEMPORARILY_UNAVAILABLE, MbmsErrors.GeneralErrors.ERROR_IN_E911, MbmsErrors.GeneralErrors.ERROR_NOT_CONNECTED_TO_HOME_CARRIER_LTE, MbmsErrors.GeneralErrors.ERROR_UNABLE_TO_READ_SIM, or MbmsErrors.GeneralErrors.ERROR_CARRIER_CHANGE_NOT_ALLOWED
message String: A human-readable message generated by the middleware for debugging purposes. This value may be null.

onMiddlewareReady

Added in API level 29 
public void onMiddlewareReady ()

Called to indicate that the middleware has been initialized and is ready. Before this method is called, calling any method on an instance of MbmsGroupCallSession will result in an IllegalStateException or an error delivered via onError(int, java.lang.String) with error code MbmsErrors.GeneralErrors#ERROR_MIDDLEWARE_NOT_YET_READY.

onServiceInterfaceAvailable

Added in API level 29 
public void onServiceInterfaceAvailable (String interfaceName, 
                int index)

Called soon after the app calls MbmsGroupCallSession#create. The information supplied via this callback may be used to establish a data-link interface with the modem. In order to establish the data-link interface, the multicast IP and port must be obtained out-of-band from the carrier. A MulticastSocket may then be constructed using a NetworkInterface with the name and interface supplied by this callback.

Parameters
interfaceName String: The interface name for the data link. This value cannot be null.
index int: The index for the data link.