Tyres, brakes & chassis

IMPACT_DETECTED

What it is

Impact detected.

Bit flag property to relay information on whether an impact has occurred on a particular side of the vehicle as described through the ImpactSensorLocation enum. As a bit flag property, this property can be set to multiple ORed together values of the enum when necessary.

For the global area ID (0), {@code getSupportedValuesList} must return a {@code SupportedValuesListResult} that contains supported values unless all bit flags of ImpactSensorLocation are supported.

For backward compatibility, if {@code SupportedValuesListResult} is defined, {@code VehicleAreaConfig#supportedEnumValues} must be set to the same values.

How the ID is built

A property ID is a 32-bit value packing four fields. Reading 0x11400330 apart:

Field	Mask	Value	Means
Group	0xf0000000	0x10000000	SYSTEM
Area	0x0f000000	0x01000000	GLOBAL
Type	0x00ff0000	0x00400000	INT32
Ordinal	0x0000ffff	0x00000330	0x330

Reading it from an app

CarPropertyManager mgr = (CarPropertyManager)
        car.getCarManager(Car.PROPERTY_SERVICE);

int value =
        mgr.getIntProperty(VehiclePropertyIds.IMPACT_DETECTED, 0);

This property is read-only — writes are rejected. It fires a callback whenever the value changes.