BLEScanner.kt

private var selectedDevice: BluetoothDevice? = null

private val scanCallback = object : ScanCallback() {
    override fun onScanResult(callbackType: Int, result: ScanResult?) {
        super.onScanResult(callbackType, result)
        
        //TODO: Set the criteria for selecting the device. Here we check the device's
        // name from the advertisement packet, but you could for example check its
        // manufacturer, address, services, etc.
        if (result.name == "MyDevice") {
            //We have found what we're looking for. Save it for later.
            selectedDevice = result.device
        }
    }
    override fun onScanFailed(errorCode: Int) {
        super.onScanFailed(errorCode)
        //TODO: Something went wrong
    }
}