Added in API level 34

Summary: Methods | Inherited Methods

CallControl

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Kotlin |Java

public final class CallControl
extends Object

java.lang.Object
↳	android.telecom.CallControl

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CallControl provides client side control of a call. Each Call will get an individual CallControl instance in which the client can alter the state of the associated call.

Each method is Transactional meaning that it can succeed or fail. If a transaction succeeds, the OutcomeReceiver#onResult will be called by Telecom. Otherwise, the OutcomeReceiver#onError is called and provides a CallException that details why the operation failed.

Summary

Public methods
void	answer(int videoState, Executor executor, OutcomeReceiver<Void, CallException> callback) Request Telecom answer an incoming call.
void	disconnect(DisconnectCause disconnectCause, Executor executor, OutcomeReceiver<Void, CallException> callback) Request Telecom disconnect the call and remove the call from telecom tracking.
ParcelUuid	getCallId()
void	requestCallEndpointChange(CallEndpoint callEndpoint, Executor executor, OutcomeReceiver<Void, CallException> callback) Request a CallEndpoint change.
void	requestMuteState(boolean isMuted, Executor executor, OutcomeReceiver<Void, CallException> callback) Request a new mute state.
void	requestVideoState(int videoState, Executor executor, OutcomeReceiver<Void, CallException> callback) Request a new video state for the ongoing call.
void	sendEvent(String event, Bundle extras) Raises an event to the InCallService implementations tracking this call via Call.Callback.onConnectionEvent(Call, String, Bundle).
void	setActive(Executor executor, OutcomeReceiver<Void, CallException> callback) Request Telecom set the call state to active.
void	setInactive(Executor executor, OutcomeReceiver<Void, CallException> callback) Request Telecom set the call state to inactive.
void	startCallStreaming(Executor executor, OutcomeReceiver<Void, CallException> callback) Request start a call streaming session.

Inherited methods

From class java.lang.Object Object clone() Creates and returns a copy of this object. boolean equals(Object obj) Indicates whether some other object is "equal to" this one. void finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. final Class<?> getClass() Returns the runtime class of this Object. int hashCode() Returns a hash code value for the object. final void notify() Wakes up a single thread that is waiting on this object's monitor. final void notifyAll() Wakes up all threads that are waiting on this object's monitor. String toString() Returns a string representation of the object. final void wait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait() Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public methods

answer

Added in API level 34

public void answer (int videoState, 
                Executor executor, 
                OutcomeReceiver<Void, CallException> callback)

Request Telecom answer an incoming call. For outgoing calls and calls that have been placed on hold, use CallControl#setActive(Executor, OutcomeReceiver).

Parameters
videoState	int: to report to Telecom. Telecom will store VideoState in the event another service/device requests it in order to continue the call on another screen. Value is CallAttributes.AUDIO_CALL, or CallAttributes.VIDEO_CALL
executor	Executor: The Executor on which the OutcomeReceiver callback will be called on. 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. This value cannot be null.
callback	OutcomeReceiver: that will be completed on the Telecom side that details success or failure of the requested operation. OutcomeReceiver#onResult will be called if Telecom has successfully switched the call state to active OutcomeReceiver#onError will be called if Telecom has failed to set the call state to active. A CallException will be passed that details why the operation failed. This value cannot be null.

disconnect

Added in API level 34

public void disconnect (DisconnectCause disconnectCause, 
                Executor executor, 
                OutcomeReceiver<Void, CallException> callback)

Request Telecom disconnect the call and remove the call from telecom tracking.

Parameters
disconnectCause	DisconnectCause: represents the cause for disconnecting the call. The only valid codes for the DisconnectCause passed in are: DisconnectCause#LOCAL DisconnectCause#REMOTE DisconnectCause#REJECTED DisconnectCause#MISSED This value cannot be null.
executor	Executor: The Executor on which the OutcomeReceiver callback will be called on. 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. This value cannot be null.
callback	OutcomeReceiver: That will be completed on the Telecom side that details success or failure of the requested operation. OutcomeReceiver#onResult will be called if Telecom has successfully disconnected the call. OutcomeReceiver#onError will be called if Telecom has failed to disconnect the call. A CallException will be passed that details why the operation failed. Note: After the call has been successfully disconnected, calling any CallControl API will result in the OutcomeReceiver#onError with CallException#CODE_CALL_IS_NOT_BEING_TRACKED. This value cannot be null.

getCallId

Added in API level 34

public ParcelUuid getCallId ()

Returns
ParcelUuid	the callId Telecom assigned to this CallControl object which should be attached to an individual call. This value cannot be null.

requestCallEndpointChange

Added in API level 34

public void requestCallEndpointChange (CallEndpoint callEndpoint, 
                Executor executor, 
                OutcomeReceiver<Void, CallException> callback)

Request a CallEndpoint change. Clients should not define their own CallEndpoint when requesting a change. Instead, the new endpoint should be one of the valid endpoints provided by CallEventCallback#onAvailableCallEndpointsChanged(List).

Parameters
callEndpoint	CallEndpoint: The CallEndpoint to change to. This value cannot be null.
executor	Executor: The Executor on which the OutcomeReceiver callback will be called on. 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. This value cannot be null.
callback	OutcomeReceiver: The OutcomeReceiver that will be completed on the Telecom side that details success or failure of the requested operation. OutcomeReceiver#onResult will be called if Telecom has successfully changed the CallEndpoint that was requested. OutcomeReceiver#onError will be called if Telecom has failed to switch to the requested CallEndpoint. A CallException will be passed that details why the operation failed. This value cannot be null.

requestMuteState

Added in API level 35

public void requestMuteState (boolean isMuted, 
                Executor executor, 
                OutcomeReceiver<Void, CallException> callback)

Request a new mute state. Note: CallEventCallback#onMuteStateChanged(boolean) will be called every time the mute state is changed and can be used to track the current mute state.

Parameters
isMuted	boolean: The new mute state. Passing in a Boolean#TRUE for the isMuted parameter will mute the call. Boolean#FALSE will unmute the call.
executor	Executor: The Executor on which the OutcomeReceiver callback will be called on. 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. This value cannot be null.
callback	OutcomeReceiver: The OutcomeReceiver that will be completed on the Telecom side that details success or failure of the requested operation. OutcomeReceiver#onResult will be called if Telecom has successfully changed the mute state. OutcomeReceiver#onError will be called if Telecom has failed to switch to the mute state. A CallException will be passed that details why the operation failed. This value cannot be null.

requestVideoState

Added in API level 35

public void requestVideoState (int videoState, 
                Executor executor, 
                OutcomeReceiver<Void, CallException> callback)

Request a new video state for the ongoing call. This can only be changed if the application has registered a PhoneAccount with the PhoneAccount#CAPABILITY_SUPPORTS_VIDEO_CALLING and set the CallAttributes#SUPPORTS_VIDEO_CALLING when adding the call via TelecomManager#addCall(CallAttributes, Executor, OutcomeReceiver, CallControlCallback, CallEventCallback)

Parameters
videoState	int: to report to Telecom. To see the valid argument to pass, see ERROR(CallAttributes.CallType/android.telecom.CallAttributes.CallType CallAttributes.CallType). Value is CallAttributes.AUDIO_CALL, or CallAttributes.VIDEO_CALL
executor	Executor: The Executor on which the OutcomeReceiver callback will be called on. 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. This value cannot be null.
callback	OutcomeReceiver: that will be completed on the Telecom side that details success or failure of the requested operation. OutcomeReceiver#onResult will be called if Telecom has successfully switched the video state. OutcomeReceiver#onError will be called if Telecom has failed to set the new video state. A CallException will be passed that details why the operation failed. This value cannot be null.

Throws
IllegalArgumentException	if the argument passed for videoState is invalid. To see a list of valid states, see ERROR(CallAttributes.CallType/android.telecom.CallAttributes.CallType CallAttributes.CallType).

sendEvent

Added in API level 34

public void sendEvent (String event, 
                Bundle extras)

Raises an event to the InCallService implementations tracking this call via Call.Callback.onConnectionEvent(Call, String, Bundle). These events and the associated extra keys for the Bundle parameter are mutually defined by a VoIP application and InCallService. This API is used to relay additional information about a call other than what is specified in the CallAttributes to InCallServices. This might include, for example, a change to the list of participants in a meeting, or the name of the speakers who have their hand raised. Where appropriate, the InCallServices tracking this call may choose to render this additional information about the call. An automotive calling UX, for example may have enough screen real estate to indicate the number of participants in a meeting, but to prevent distractions could suppress the list of participants.

Parameters
event	String: a string event identifier agreed upon between a VoIP application and an InCallService This value cannot be null.
extras	Bundle: a Bundle containing information about the event, as agreed upon between a VoIP application and InCallService. This value cannot be null.

setActive

Added in API level 34

public void setActive (Executor executor, 
                OutcomeReceiver<Void, CallException> callback)

Request Telecom set the call state to active. This method should be called when either an outgoing call is ready to go active or a held call is ready to go active again. For incoming calls that are ready to be answered, use CallControl#answer(int, Executor, OutcomeReceiver).

Parameters
executor	Executor: The Executor on which the OutcomeReceiver callback will be called on. 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. This value cannot be null.
callback	OutcomeReceiver: that will be completed on the Telecom side that details success or failure of the requested operation. OutcomeReceiver#onResult will be called if Telecom has successfully switched the call state to active OutcomeReceiver#onError will be called if Telecom has failed to set the call state to active. A CallException will be passed that details why the operation failed. This value cannot be null.

setInactive

Added in API level 34

public void setInactive (Executor executor, 
                OutcomeReceiver<Void, CallException> callback)

Request Telecom set the call state to inactive. This the same as hold for two call endpoints but can be extended to setting a meeting to inactive.

Parameters
executor	Executor: The Executor on which the OutcomeReceiver callback will be called on. 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. This value cannot be null.
callback	OutcomeReceiver: that will be completed on the Telecom side that details success or failure of the requested operation. OutcomeReceiver#onResult will be called if Telecom has successfully switched the call state to inactive OutcomeReceiver#onError will be called if Telecom has failed to set the call state to inactive. A CallException will be passed that details why the operation failed. This value cannot be null.

startCallStreaming

Added in API level 34

public void startCallStreaming (Executor executor, 
                OutcomeReceiver<Void, CallException> callback)

Request start a call streaming session. On receiving valid request, telecom will bind to the CallStreamingService implemented by a general call streaming sender. So that the call streaming sender can perform streaming local device audio to another remote device and control the call during streaming.

Parameters
executor	Executor: The Executor on which the OutcomeReceiver callback will be called on. 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. This value cannot be null.
callback	OutcomeReceiver: that will be completed on the Telecom side that details success or failure of the requested operation. OutcomeReceiver#onResult will be called if Telecom has successfully started the call streaming. OutcomeReceiver#onError will be called if Telecom has failed to start the call streaming. A CallException will be passed that details why the operation failed. This value cannot be null.