Added in API level 29

CarPropertyManager.CarPropertyEventCallback

public static interface CarPropertyManager.CarPropertyEventCallback

android.car.hardware.property.CarPropertyManager.CarPropertyEventCallback

Application registers CarPropertyEventCallback object to receive updates and changes to subscribed Vehicle specific properties.

Summary

Public methods

abstract void onChangeEvent(CarPropertyValue<T> value)

Called when a property is updated

default void onErrorEvent(int propertyId, int areaId, int errorCode)

Called when an error is detected when setting a property.

abstract void onErrorEvent(int propertyId, int areaId)

Called when an error is detected when setting a property.

Public methods

onChangeEvent

Added in API level 29 
public abstract void onChangeEvent (CarPropertyValue<T> value)

Called when a property is updated

Parameters
value CarPropertyValue: the new value of the property

onErrorEvent

Added in API level 30 
public void onErrorEvent (int propertyId, 
                int areaId, 
                int errorCode)

Called when an error is detected when setting a property.

Clients which changed the property value in the areaId most recently will receive this callback. If multiple clients set a property for the same area ID simultaneously, which one takes precedence is undefined. Typically, the last set operation (in the order that they are issued to car's ECU) overrides the previous set operations. The delivered error reflects the error happened in the last set operation.

Parameters
propertyId int: the property ID which is detected an error
areaId int: the area ID which is detected an error
errorCode int: the error code is raised in the car Value is CarPropertyManager.CAR_SET_PROPERTY_ERROR_CODE_TRY_AGAIN, CarPropertyManager.CAR_SET_PROPERTY_ERROR_CODE_INVALID_ARG, CarPropertyManager.CAR_SET_PROPERTY_ERROR_CODE_PROPERTY_NOT_AVAILABLE, CarPropertyManager.CAR_SET_PROPERTY_ERROR_CODE_ACCESS_DENIED, or CarPropertyManager.CAR_SET_PROPERTY_ERROR_CODE_UNKNOWN

onErrorEvent

Added in API level 29 
public abstract void onErrorEvent (int propertyId, 
                int areaId)

Called when an error is detected when setting a property.

Parameters
propertyId int: the property ID which has detected an error
areaId int: the area ID which has detected an error