WINDSHIELD_WIPERS_STATE
What it is
Windshield wipers state.
Returns the current state of the windshield wipers. The value of WINDSHIELD_WIPERS_STATE may not match the value of WINDSHIELD_WIPERS_SWITCH. (e.g. WINDSHIELD_WIPERS_STATE = ON and WINDSHIELD_WIPERS_SWITCH = WindshieldWipersSwitch#AUTO).
If WINDSHIELD_WIPERS_STATE = ON and WINDSHIELD_WIPERS_PERIOD is implemented, then WINDSHIELD_WIPERS_PERIOD must reflect the time period of 1 full cycle of the wipers.
For each supported area ID, the VehicleAreaConfig#supportedEnumValues array must be defined unless all states in WindshieldWipersState are supported (including OTHER, which is not recommended).
How the ID is built
A property ID is a 32-bit value packing four fields. Reading 0x13400bc6 apart:
| Field | Mask | Value | Means |
|---|---|---|---|
| Group | 0xf0000000 | 0x10000000 | SYSTEM |
| Area | 0x0f000000 | 0x03000000 | WINDOW |
| Type | 0x00ff0000 | 0x00400000 | INT32 |
| Ordinal | 0x0000ffff | 0x00000bc6 | 0xbc6 |
Reading it from an app
CarPropertyManager mgr = (CarPropertyManager)
car.getCarManager(Car.PROPERTY_SERVICE);
int value =
mgr.getIntProperty(VehiclePropertyIds.WINDSHIELD_WIPERS_STATE, areaId);This property is read-only — writes are rejected. It fires a callback whenever the value changes.