Vehicle properties
External conditions
NIGHT_MODE
What it is
Night mode
True indicates that the night mode sensor has detected that the car cabin environment has low light. The platform could use this, for example, to enable appropriate UI for better viewing in dark or low light environments.
How the ID is built
A property ID is a 32-bit value packing four fields. Reading 0x11200407 apart:
| Field | Mask | Value | Means |
|---|---|---|---|
| Group | 0xf0000000 | 0x10000000 | SYSTEM |
| Area | 0x0f000000 | 0x01000000 | GLOBAL |
| Type | 0x00ff0000 | 0x00200000 | BOOLEAN |
| Ordinal | 0x0000ffff | 0x00000407 | 0x407 |
Reading it from an app
CarPropertyManager mgr = (CarPropertyManager)
car.getCarManager(Car.PROPERTY_SERVICE);
boolean value =
mgr.getBooleanProperty(VehiclePropertyIds.NIGHT_MODE, 0);This property is read-only — writes are rejected. It fires a callback whenever the value changes.