Compose Sensors

This library is a thin wrapper around the Android Sensor APIs, designed to make it easier to work with them in Jetpack Compose.

Accelerometer Light Proximity



In module build.gralde.kts file:

dependencies {

The library is available via mavenCentral(). Versions can be found on the releases page.

Core APIs

The core APIs provide composable access to the Android sensor framework classes:

// Get the SensorManager
val sensorManager = getSensorManager()

// Check if a certain type of sensor is available
val available = isSensorAvailable(type = Sensor.TYPE_ACCELEROMETER)

// Get a sensor
val sensor = getSensor(type = Sensor.TYPE_ACCELEROMETER)

// Remember a sensor value as State that updates as SensorEvents arrive
val sensorValue by rememberSensorValueAsState(type = Sensor.TYPE_ACCELEROMETER) { event ->
    // Transform SensorEvents

Per-sensor APIs

The per-sensor APIs build on the core APIs and provide convenience by:

  • Not having to pass the sensor type parameter
  • Handling the transformation of SensorEvents for each type of sensor, by using the SensorValue class

// Check if accelerometer sensor is available
val available = isAccelerometerSensorAvailable()

// Get accelerometer sensor
val sensor = getAccelerometerSensor()

// Remember accelerometer sensor value as State that updates as SensorEvents arrive
val sensorValue by rememberAccelerometerSensorValueAsState()
// Accelerometer sensor values. Also available: sensorValue.timestamp, sensorValue.accuracy
val (x, y, z) = sensorValue.value

The following sensor types are available:

Type Availability Sensor Sensor value
Accelerometer isAccelerometerSensorAvailable getAccelerometerSensor rememberAccelerometerSensorValueAsState
Gyroscope isGyroscopeSensorAvailable getGyroscopeSensor rememberGyroscopeSensorValueAsState
Light isLightSensorAvailable getLightSensor rememberLightSensorValueAsState
Magnetic field isMagneticFieldSensorAvailable getMagneticFieldSensor rememberMagneticFieldSensorValueAsState
Pressure isPressureSensorAvailable getPressureSensor rememberPressureSensorValueAsState
Proximity isProximitySensorAvailable getProximitySensor rememberProximitySensorValueAsState

Watch this space, more types to come!


Copyright 2023 Nick Rout

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