# DeviceScanner

class DeviceScanner(context: Context) : IDeviceScanner

Class responsible for discovering nearby Nix devices.

## Constructors

DeviceScanner
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constructor(context: Context)

## Types

Util
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object Util

## Properties

state
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open override val state: IDeviceScanner.DeviceScannerState

Current state of the IDeviceScanner.

## Functions

listUsbDevices
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open override fun listUsbDevices(): List<IDeviceCompat>

List USB attached IDeviceCompat instances without running a Bluetooth search.

scanForHardwareId
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open suspend override fun scanForHardwareId(id: String, scanPeriodMs: Long = DEFAULT_SINGLE_DEVICE_PERIOD_MS): IDeviceCompat?

Starts a search for a specific Nix device using Bluetooth. The search will run until the specified device is found, or until a timeout elapses, whichever is shorter.

setOnScannerStateChangeListener
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open override fun setOnScannerStateChangeListener(listener: IDeviceScanner.OnScannerStateChangeListener)

Sets a OnScannerStateChangeListener callback reference.

start
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open override fun start(listener: IDeviceScanner.OnDeviceFoundListener, scanPeriodMs: Long = DEFAULT_GENERAL_SCAN_PERIOD_MS): IDeviceScanner.DeviceScannerState

Starts a search for nearby Nix devices using Bluetooth for a selected time interval. If no timeout interval is specified, the search will run for DEFAULT_GENERAL_SCAN_PERIOD_MS.

startSearchForId
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open override fun startSearchForId(listener: IDeviceScanner.OnDeviceFoundListener, id: String, scanPeriodMs: Long = DEFAULT_SINGLE_DEVICE_PERIOD_MS): IDeviceScanner.DeviceScannerState

Starts a search for a specific Nix device using Bluetooth. The search will run until the specified device is found, or until a timeout elapses, whichever is shorter. This search can alternatively be achieved without a callback by calling the coroutine function scanForHardwareId.

stop
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open override fun stop()

Stops a Bluetooth search if one is currently running.