Added in API level 30

RegistrationManager

interface RegistrationManager
android.telephony.ims.RegistrationManager

Manages IMS Service registration state for associated ImsFeatures.
Requires the PackageManager#FEATURE_TELEPHONY_IMS feature which can be detected using PackageManager.hasSystemFeature(String).

Summary

Nested classes
open

Callback class for receiving IMS network Registration callback events.
Constants
static Int

The IMS service is currently not registered to the carrier network.
static Int

The IMS service is currently registered to the carrier network.
static Int

The IMS service is currently in the process of registering to the carrier network.
Public methods
abstract Unit
getRegistrationState(executor: Executor, stateCallback: Consumer<Int!>)

Gets the registration state of the IMS service.
abstract Unit
getRegistrationTransportType(executor: Executor, transportTypeCallback: Consumer<Int!>)

Gets the Transport Type associated with the current IMS registration.
abstract Unit

Registers a RegistrationCallback with the system.
abstract Unit

Removes an existing RegistrationCallback.

Constants

REGISTRATION_STATE_NOT_REGISTERED

Added in API level 30
static val REGISTRATION_STATE_NOT_REGISTERED: Int

The IMS service is currently not registered to the carrier network.

Value: 0

REGISTRATION_STATE_REGISTERED

Added in API level 30
static val REGISTRATION_STATE_REGISTERED: Int

The IMS service is currently registered to the carrier network.

Value: 2

REGISTRATION_STATE_REGISTERING

Added in API level 30
static val REGISTRATION_STATE_REGISTERING: Int

The IMS service is currently in the process of registering to the carrier network.

Value: 1

Public methods

getRegistrationState

Added in API level 30
abstract fun getRegistrationState(
    executor: Executor, 
    stateCallback: Consumer<Int!>
): Unit

Gets the registration state of the IMS service.
Requires android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE

Parameters
executor Executor: The Executor that will be used to call the IMS registration state callback. This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). Otherwise, provide an Executor that dispatches to an appropriate thread.
stateCallback Consumer<Int!>: A callback called on the supplied Executor that will contain the registration state of the IMS service, which will be one of the following: REGISTRATION_STATE_NOT_REGISTERED, REGISTRATION_STATE_REGISTERING, or REGISTRATION_STATE_REGISTERED. This value cannot be null. Value is android.telephony.ims.RegistrationManager#REGISTRATION_STATE_NOT_REGISTERED, android.telephony.ims.RegistrationManager#REGISTRATION_STATE_REGISTERING, or android.telephony.ims.RegistrationManager#REGISTRATION_STATE_REGISTERED

getRegistrationTransportType

Added in API level 30
abstract fun getRegistrationTransportType(
    executor: Executor, 
    transportTypeCallback: Consumer<Int!>
): Unit

Gets the Transport Type associated with the current IMS registration.
Requires android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE

Parameters
executor Executor: The Executor that will be used to call the transportTypeCallback. This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). Otherwise, provide an Executor that dispatches to an appropriate thread.
transportTypeCallback Consumer<Int!>: The transport type associated with the current IMS registration, which will be one of following: {@see AccessNetworkConstants#TRANSPORT_TYPE_WWAN}, {@see AccessNetworkConstants#TRANSPORT_TYPE_WLAN}, or {@see AccessNetworkConstants#TRANSPORT_TYPE_INVALID}. This value cannot be null. Value is android.telephony.AccessNetworkConstants.TRANSPORT_TYPE_INVALID, android.telephony.AccessNetworkConstants#TRANSPORT_TYPE_WWAN, or android.telephony.AccessNetworkConstants#TRANSPORT_TYPE_WLAN

registerImsRegistrationCallback

Added in API level 30
abstract fun registerImsRegistrationCallback(
    executor: Executor, 
    c: RegistrationManager.RegistrationCallback
): Unit

Registers a RegistrationCallback with the system. Use
Requires android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE

Parameters
executor Executor: The executor the callback events should be run on.
c RegistrationManager.RegistrationCallback: The RegistrationCallback to be added.
Exceptions
android.telephony.ims.ImsException if the subscription associated with this callback is valid, but the ImsService associated with the subscription is not available. This can happen if the service crashed, for example. See ImsException.getCode() for a more detailed reason.

unregisterImsRegistrationCallback

Added in API level 30
abstract fun unregisterImsRegistrationCallback(c: RegistrationManager.RegistrationCallback): Unit

Removes an existing RegistrationCallback. When the subscription associated with this callback is removed (SIM removed, ESIM swap, etc...), this callback will automatically be removed. If this method is called for an inactive subscription, it will result in a no-op.
Requires android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE

Parameters
c RegistrationManager.RegistrationCallback: The RegistrationCallback to be removed. This value cannot be null.