使用hoho.android.usbserial串口庫開發串口
import android.app.Application
import android.app.PendingIntent
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.hardware.usb.UsbDevice
import android.hardware.usb.UsbManager
import android.util.Log
import android.widget.Toast
import com.cuifeipeng.unfix.raman.BaseActivity
import com.cuifeipeng.unfix.raman.model.LaserParameter
import com.hoho.android.usbserial.driver.UsbSerialProber
import java.util.concurrent.Semaphore
廣播類
class DeviceBroadcastReceiver (var deviceContext: DeviceContext) : BroadcastReceiver() {

override fun onReceive(context: Context?, intent: Intent?) {val device1 = intent!!.getParcelableExtra<UsbDevice>(UsbManager.EXTRA_DEVICE)val action = intent!!.actionwhen (action) {UsbManager.ACTION_USB_DEVICE_ATTACHED -> {val device = intent.getParcelableExtra<UsbDevice>(UsbManager.EXTRA_DEVICE)val mUsbManager = context!!.getSystemService(Context.USB_SERVICE) as UsbManagerval mPermissionIntent = PendingIntent.getBroadcast(context, 0, Intent(DeviceContext.ACTION_USB_PERMISSION), 0)mUsbManager.requestPermission(device, mPermissionIntent)}UsbManager.ACTION_USB_DEVICE_DETACHED -> {val device = intent.getParcelableExtra<UsbDevice>(UsbManager.EXTRA_DEVICE)if (deviceContext.ccdAdapter?.usbDevice == device) {deviceContext.ccdAdapter = null} else if (deviceContext.laserAdapter?.usbDevice == device) {deviceContext.laserAdapter = null}}DeviceContext.ACTION_USB_PERMISSION -> {synchronized(this) {val device = intent.getParcelableExtra<UsbDevice>(UsbManager.EXTRA_DEVICE)if (intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)) {val mUsbManager = context!!.getSystemService(Context.USB_SERVICE) as UsbManagerconnectDevice(mUsbManager, device, context)if (deviceIterator!!.hasNext()) {val nextDevice = deviceIterator!!.next()mUsbManager.requestPermission(nextDevice, mPermissionIntent!!)} else {}} else {Log.d("sss", "permission denied for device " + device)}}}} }private var deviceIterator: MutableIterator<UsbDevice>? = null private var mPermissionIntent: PendingIntent? = null private val semaphore : Semaphore = Semaphore(1) private val semaphore2 : Semaphore = Semaphore(1) fun requestPermission(context: Context) {mPermissionIntent = PendingIntent.getBroadcast(context, 0, Intent(DeviceContext.ACTION_USB_PERMISSION), 0)val mUsbManager = context.getSystemService(Context.USB_SERVICE) as UsbManagerval deviceList = mUsbManager.deviceListdeviceIterator = deviceList.values.iterator()if (deviceIterator!!.hasNext()) {val device = deviceIterator!!.next()mUsbManager.requestPermission(device, mPermissionIntent!!)} }private fun connectDevice(usbManager: UsbManager, usbDevice: UsbDevice?, context: Context) {try {if (usbDevice != null) {//context!!.getSystemService(Context.USB_SERVICE) as UsbManagerval availableDriver = UsbSerialProber.getDefaultProber().probeDevice(usbDevice)if (availableDriver != null) {val connection = usbManager.openDevice(availableDriver.device) ?: returnval port = availableDriver.ports[0]port.open(connection)if (deviceContext.ccdAdapter == null && CCDAdapter.isCCDDevice(port)) {deviceContext.ccdAdapter = CCDAdapter(port, usbDevice)}else if(deviceContext.laserAdapter == null){if (LaserAdapter4.isLaserDevice(port)) {val laserParameter = LaserParameter.fromSharedPreferences(context.getSharedPreferences(BaseActivity.preferenceName, Context.MODE_PRIVATE))deviceContext.laserAdapter = LaserAdapter4(port, laserParameter, usbDevice)}}else if (deviceContext.laserAdapter == null ) {if (LaserAdapter3.isLaserDevice(port)) {val laserParameter = LaserParameter.fromSharedPreferences(context.getSharedPreferences(BaseActivity.preferenceName, Context.MODE_PRIVATE))deviceContext.laserAdapter = LaserAdapter3(port, laserParameter, usbDevice)}} else if (deviceContext.laserAdapter == null) {if (LaserAdapter2.isLaserDevice(port)) {val laserParameter = LaserParameter.fromSharedPreferences(context.getSharedPreferences(BaseActivity.preferenceName, Context.MODE_PRIVATE))deviceContext.laserAdapter = LaserAdapter2(port, laserParameter, usbDevice)}} else if (deviceContext.laserAdapter == null ) {if (LaserAdapter1.isLaserDevice(port)) {val laserParameter = LaserParameter.fromSharedPreferences(context.getSharedPreferences(BaseActivity.preferenceName, Context.MODE_PRIVATE))deviceContext.laserAdapter = LaserAdapter1(port, laserParameter, usbDevice)}}else {port.close()}} else {}} else {}} catch (e: Exception) {deviceContext.setError(e.message.toString() + e.stackTrace.joinToString("@"))} }

}

硬件上下文類
class DeviceContext {

companion object {var ACTION_USB_PERMISSION = "com.android.example.USB_PERMISSION"private var instance: DeviceContext? = nullfun setInstance(context: DeviceContext) {instance = context}fun getInstance(): DeviceContext? {return instance} }private var _ccdAdapter: CCDAdapter? = null; private var _laserAdapter: LaserAdapter? = null; var ccdAdapter: CCDAdapter?set(value) {if (_ccdAdapter == value) return_ccdAdapter = value;if (value != null)onConnectDevice("ccd")else onDisConnectDevice("ccd")}get() {return _ccdAdapter;} var laserAdapter: LaserAdapter?set(value) {if (_laserAdapter == value) return_laserAdapter = value;if (value != null)onConnectDevice("laser")else onDisConnectDevice("laser")}get() {return _laserAdapter;}var deviceConnected: IOnDeviceConnected? = null;fun isAllConnected(): Boolean {//return ccdAdapter != nullreturn ccdAdapter != null && laserAdapter != null; }private fun onConnectDevice(message:String) {deviceConnected?.onConnected(this,message) }private fun onDisConnectDevice(message:String) {deviceConnected?.onDisConnected(this,message) }fun dispose() {ccdAdapter?.dispose()ccdAdapter = nulllaserAdapter?.dispose()laserAdapter = null }fun setError(message: String) {deviceConnected?.onError(this, message) }fun setOnConnected(deviceConnected: IOnDeviceConnected) {this.deviceConnected = deviceConnected; }

}
設備類
import android.hardware.usb.UsbDevice
import com.cuifeipeng.unfix.raman.model.LaserParameter
import com.cuifeipeng.unfix.raman.util.LogUtil
import com.hoho.android.usbserial.driver.UsbSerialPort

class LaserAdapter4 (port: UsbSerialPort, laserParameter: LaserParameter, usbDevice: UsbDevice):LaserAdapter(port,laserParameter,usbDevice) {
override fun dispose() {

closeLaser()port.close() }override fun openLaser() {SetControlMode(0)//設置激光器工作模式SetLaserStatus(1)//設置激光器工作狀態}override fun closeLaser() {SetLaserStatus(0)//設置激光器工作狀態SetLaserCurrent(0)//設定電流}override fun setLaserPower(power: Double) {SetLaserCurrent(power.toInt())//設定激光器工作電流（mA) }//******************************************************************************************************************** private fun SetDeviceID(id:String): Boolean//設定序列號 {var tempStr= ":SN=" + id+";"var sendByte:ByteArray=tempStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(17)read(port, ReceiveBuffer)var resultStr:String = ReceiveBuffer.toString(Charsets.US_ASCII)var value:String= resultStr.substring(4,10)if(id== value){return true;}else{return false;}} public fun GetDeviceID():String//獲取序列號 {var tempStr= ":SN=?;"var sendByte:ByteArray = tempStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(17)read(port, ReceiveBuffer)var resultStr:String = ReceiveBuffer.toString(Charsets.US_ASCII)var value:String= resultStr.substring(4,10)return value }public fun GetRunTime():Int//獲取運行時間 {var tempStr= ":WT=?;"var sendByte:ByteArray = tempStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(15)read(port, ReceiveBuffer)var resultStr:String = ReceiveBuffer.toString(Charsets.US_ASCII)var value:Int= resultStr.substring(4,5).toInt()return value }public fun SetControlMode(mode:Int):Boolean//設定控制模式:PCN=0;PCN=1;（PCN=1 切換到外部模擬量控制；PCN=0 使用USB設置） {var sendStr:String = ""if (mode == 0){sendStr = ":PCN=0;"}else if (mode == 1){sendStr = ":PCN=1;"}var sendByte:ByteArray = sendStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)return truevar ReceiveBuffer = ByteArray(9)read(port, ReceiveBuffer)var resultStr:String = ReceiveBuffer.toString(Charsets.US_ASCII)var value:Int= resultStr.substring(5,1).toInt()if (value == mode){ return true }else{return false} }public fun GetModuleTemprature():Int//讀取激光器模塊溫度 {var tempStr=":LDDT=?;"var sendByte:ByteArray = tempStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(14)read(port, ReceiveBuffer)var resultStr:String = ReceiveBuffer.toString(Charsets.US_ASCII)var value:Int= resultStr.substring(6,5).toInt()return value } public fun GetLaserCurrentTemprature():Int//讀取激光器溫度 {var tempStr=":LDT=?;"var sendByte:ByteArray = tempStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(15)read(port, ReceiveBuffer)var resultStr:String = ReceiveBuffer.toString(Charsets.US_ASCII)var value:Int= resultStr.substring(5,5).toInt()return value } public fun GetLaserCurrent():Int//讀取激光器實際電流 {var tempStr= ":LDC=?;"var sendByte:ByteArray = tempStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(15)read(port, ReceiveBuffer)var resultStr:String = ReceiveBuffer.toString(Charsets.US_ASCII)var value:Int= resultStr.substring(5,5).toInt()return value } public fun GetTECCurrent():Int//讀取TEC實際電流 {var tempStr= ":TECC=?;"var sendByte:ByteArray = tempStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(16)read(port, ReceiveBuffer)var resultStr:String = ReceiveBuffer.toString(Charsets.US_ASCII)var value:Int= resultStr.substring(6,5).toInt()return value }public fun SetLaserCurrent(current:Int):Boolean//設定激光器工作電流（mA) {var tempValue=current.toString()while(tempValue.length<5){tempValue = "0"+tempValue;}var tempStr = ":LDC=" + tempValue.toString() + ";"var sendByte: ByteArray = tempStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(13)return trueread(port, ReceiveBuffer)var resultStr: String = ReceiveBuffer.toString(Charsets.US_ASCII)var value: Int = resultStr.substring(5, 5).toInt()if (current == value) {return true} else {return false} }public fun SetLaserStatus(status:Int):Boolean//設置激光器工作狀態{var sendStr = ""if (status == 0) {sendStr = ":LDON=0;";} else if (status == 1) {sendStr = ":LDON=1;";}var sendByte: ByteArray = sendStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(10)return trueread(port, ReceiveBuffer)var resultStr: String = ReceiveBuffer.toString(Charsets.US_ASCII)var value: Int = resultStr.substring(6, 1).toInt()if (value == status) {return true} else {return false}}public fun SetTECTemprature(temprature:Int):Boolean//設TEC工作溫度{var tempStr = ":LDT=" + temprature.toString() + ";";var sendByte: ByteArray = tempStr.toByteArray(Charsets.US_ASCII)write(port, sendByte)var ReceiveBuffer = ByteArray(13)read(port, ReceiveBuffer)var resultStr: String = ReceiveBuffer.toString(Charsets.US_ASCII)var value: Int = resultStr.substring(5, 5).toInt()if (value == temprature) {return true} else {return false}}companion object {//**********************************************************************************************private fun write(port: UsbSerialPort, cmd: ByteArray) {LogUtil.debug("Laser4 write", cmd.joinToString(","))port.write(cmd, 1000)}private fun read(port: UsbSerialPort, resultByte: ByteArray) {val bufferArray = ByteArray(resultByte.size)var readCount = 0do {val count = port.read(bufferArray, 1000)for (i in 0..(count -1)) {if (readCount + i < resultByte.count())resultByte[readCount + i] = bufferArray[i]}readCount += count} while (readCount < resultByte.count())//LogUtil.debug("Laser4 read", resultByte.joinToString(","))}private fun read2(port: UsbSerialPort, resultByte: ByteArray) {val bufferArray = ByteArray(resultByte.size)val count = port.read(bufferArray, 1000)var tempStr=bufferArray.toString(Charsets.US_ASCII)LogUtil.debug("Laser4 read", tempStr)}fun isLaserDevice(port: UsbSerialPort): Boolean {return try {port.setParameters(115200, 8, UsbSerialPort.STOPBITS_1, UsbSerialPort.PARITY_NONE)var tempStr=":SN=?;"val cmd =tempStr.toByteArray(Charsets.US_ASCII)write(port, cmd)val resultByte = ByteArray(15)return trueread(port, resultByte)var resultStr: String = resultByte.toString(Charsets.US_ASCII)var value= resultStr.substring(4, 10)if (value!="0123456789") return falseLogUtil.debug("Laser4 connected", ":true")true} catch (e: Exception) {false}} }

}

在其他類調用
private var deviceContext = DeviceContext()
private var deviceBroadcastReceiver = DeviceBroadcastReceiver(deviceContext)

總結

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