Vehicle properties
Lights
HAZARD_LIGHTS_STATE
What it is
Hazard light status
Return the current status of hazard lights.
How the ID is built
A property ID is a 32-bit value packing four fields. Reading 0x11400e03 apart:
| Field | Mask | Value | Means |
|---|---|---|---|
| Group | 0xf0000000 | 0x10000000 | SYSTEM |
| Area | 0x0f000000 | 0x01000000 | GLOBAL |
| Type | 0x00ff0000 | 0x00400000 | INT32 |
| Ordinal | 0x0000ffff | 0x00000e03 | 0xe03 |
Reading it from an app
CarPropertyManager mgr = (CarPropertyManager)
car.getCarManager(Car.PROPERTY_SERVICE);
int value =
mgr.getIntProperty(VehiclePropertyIds.HAZARD_LIGHTS_STATE, 0);This property is read-only — writes are rejected. It fires a callback whenever the value changes.