TelephonyCallback

Kotlin |Java

public class TelephonyCallback
extends Object

java.lang.Object
↳	android.telephony.TelephonyCallback

A callback class for monitoring changes in specific telephony states on the device, including service state, signal strength, message waiting indicator (voicemail), and others.

To register a callback, use a TelephonyCallback which implements interfaces regarding EVENT_*. For example, FakeServiceStateCallback extends TelephonyCallback implements TelephonyCallback.ServiceStateListener.

Then override the methods for the state that you wish to receive updates for, and pass the executor and your TelephonyCallback object to TelephonyManager#registerTelephonyCallback. Methods are called when the state changes, as well as once on initial registration.

Note that access to some telephony information is permission-protected. Your application won't receive updates for protected information unless it has the appropriate permissions declared in its manifest file. Where permissions apply, they are noted in the appropriate sub-interfaces.

Summary

Nested classes
`interface`	`TelephonyCallback.ActiveDataSubscriptionIdListener` Interface for active data subscription ID listener.
`interface`	`TelephonyCallback.BarringInfoListener` Interface for barring information listener.
`interface`	`TelephonyCallback.CallDisconnectCauseListener` Interface for call disconnect cause listener.
`interface`	`TelephonyCallback.CallForwardingIndicatorListener` Interface for call-forwarding indicator listener.
`interface`	`TelephonyCallback.CallStateListener` Interface for call state listener.
`interface`	`TelephonyCallback.CarrierNetworkListener` Interface for carrier network listener.
`interface`	`TelephonyCallback.CellInfoListener` Interface for cell info listener.
`interface`	`TelephonyCallback.CellLocationListener` Interface for device cell location listener.
`interface`	`TelephonyCallback.DataActivationStateListener` Interface for SIM data activation state listener.
`interface`	`TelephonyCallback.DataActivityListener` Interface for data activity state listener.
`interface`	`TelephonyCallback.DataConnectionStateListener` Interface for data connection state listener.
`interface`	`TelephonyCallback.DisplayInfoListener` Interface for display info listener.
`interface`	`TelephonyCallback.EmergencyNumberListListener` Interface for the current emergency number list listener.
`interface`	`TelephonyCallback.ImsCallDisconnectCauseListener` Interface for IMS call disconnect cause listener.
`interface`	`TelephonyCallback.MessageWaitingIndicatorListener` Interface for message waiting indicator listener.
`interface`	`TelephonyCallback.PhysicalChannelConfigListener` Interface for current physical channel configuration listener.
`interface`	`TelephonyCallback.PreciseDataConnectionStateListener` Interface for precise data connection state listener.
`interface`	`TelephonyCallback.RegistrationFailedListener` Interface for registration failures listener.
`interface`	`TelephonyCallback.ServiceStateListener` Interface for service state listener.
`interface`	`TelephonyCallback.SignalStrengthsListener` Interface for network signal strengths listener.
`interface`	`TelephonyCallback.UserMobileDataStateListener` Interface for user mobile data state listener.

Public constructors
`TelephonyCallback()`

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 constructors