init

.gitignore

@@ -0,0 +1,29 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
+/pubspec.lock
+**/doc/api/
+.dart_tool/
+build/

.metadata

@@ -0,0 +1,30 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "761747bfc538b5af34aa0d3fac380f1bc331ec49"
+  channel: "stable"
+
+project_type: plugin
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+      base_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+    - platform: android
+      create_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+      base_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

CHANGELOG.md

@@ -0,0 +1,3 @@
+## 0.0.1
+
+* TODO: Describe initial release.

LICENSE

@@ -0,0 +1 @@
+TODO: Add your license here.

README.md

@@ -0,0 +1,15 @@
+# zhiwen
+
+A new Flutter project.
+
+## Getting Started
+
+This project is a starting point for a Flutter
+[plug-in package](https://flutter.dev/developing-packages/),
+a specialized package that includes platform-specific implementation code for
+Android and/or iOS.
+
+For help getting started with Flutter development, view the
+[online documentation](https://flutter.dev/docs), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.
+

analysis_options.yaml

@@ -0,0 +1,4 @@
+include: package:flutter_lints/flutter.yaml
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

android/.gitignore

@@ -0,0 +1,9 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.cxx

android/build.gradle

@@ -0,0 +1,60 @@
+group = "com.xiarui.zhiwen"
+version = "1.0"
+
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath("com.android.tools.build:gradle:7.3.0")
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+apply plugin: "com.android.library"
+
+android {
+    if (project.android.hasProperty("namespace")) {
+        namespace = "com.xiarui.zhiwen"
+    }
+
+    compileSdk = 34
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        minSdk = 21
+    }
+
+    sourceSets {
+        main {
+            jniLibs.srcDirs = ['libs']
+        }
+    }
+
+    dependencies {
+        testImplementation("junit:junit:4.13.2")
+        testImplementation("org.mockito:mockito-core:5.0.0")
+    }
+
+    testOptions {
+        unitTests.all {
+            testLogging {
+               events "passed", "skipped", "failed", "standardOut", "standardError"
+               outputs.upToDateWhen {false}
+               showStandardStreams = true
+            }
+        }
+    }
+}

android/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'zhiwen'

android/src/main/AndroidManifest.xml

@@ -0,0 +1,5 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.xiarui.zhiwen">
+<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+</manifest>

android/src/main/java/android_serialport_api/ComBean.java

@@ -0,0 +1,21 @@
+package android_serialport_api;
+
+import java.text.SimpleDateFormat;
+
+/**
+ * @author benjaminwan
+ */
+public class ComBean {
+		public byte[] bRec=null;
+		public String sRecTime="";
+		public String sComPort="";
+		public int nSize = 0;
+		public ComBean(String sPort,byte[] buffer,int size){
+			sComPort=sPort;
+			bRec=new byte[size];
+            System.arraycopy(buffer, 0, bRec, 0, size);
+			nSize = size;
+			SimpleDateFormat sDateFormat = new SimpleDateFormat("hh:mm:ss");       
+			sRecTime = sDateFormat.format(new java.util.Date()); 
+		}
+}

android/src/main/java/android_serialport_api/SerialHelper.java

@@ -0,0 +1,231 @@
+package android_serialport_api;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.security.InvalidParameterException;
+
+import com.xiarui.zhiwen.DevComm;
+
+import android_serialport_api.ComBean;
+import android_serialport_api.SerialPort;
+
+
+public abstract class SerialHelper{
+	private SerialPort mSerialPort;
+	private OutputStream mOutputStream;
+	private InputStream mInputStream;
+	private ReadThread mReadThread;
+	private SendThread mSendThread;
+	private String sPort="/dev/s3c2410_serial0";
+	private int iBaudRate=9600;
+	private boolean _isOpen=false;
+	private byte[] _bLoopData=new byte[]{0x30};
+	private int iDelay=500;
+	//----------------------------------------------------
+	public SerialHelper(String sPort,int iBaudRate){
+		this.sPort = sPort;
+		this.iBaudRate=iBaudRate;
+	}
+	public SerialHelper(){
+		this("/dev/s3c2410_serial0",9600);
+	}
+	public SerialHelper(String sPort){
+		this(sPort,9600);
+	}
+	public SerialHelper(String sPort,String sBaudRate){
+		this(sPort,Integer.parseInt(sBaudRate));
+	}
+	//----------------------------------------------------
+	public void open() throws SecurityException, IOException,InvalidParameterException{
+		mSerialPort =  new SerialPort(new File(sPort), iBaudRate, 0);
+		mOutputStream = mSerialPort.getOutputStream();
+		mInputStream = mSerialPort.getInputStream();
+		mReadThread = new ReadThread();
+		mReadThread.start();
+		mSendThread = new SendThread();
+		mSendThread.setSuspendFlag();
+		mSendThread.start();
+		_isOpen=true;
+	}
+	//----------------------------------------------------
+	public void close(){
+		if (mReadThread != null)
+			mReadThread.interrupt();
+		if (mSerialPort != null) {
+			mSerialPort.close();
+			mSerialPort = null;
+		}
+		_isOpen=false;
+	}
+	//----------------------------------------------------
+	public void send(byte[] bOutArray, int nSize){
+		try
+		{
+			mOutputStream.write(bOutArray, 0, nSize);
+		} catch (IOException e)
+		{
+			e.printStackTrace();
+		}
+	}
+	//----------------------------------------------------
+	public void sendTxt(String sTxt){
+		byte[] bOutArray =sTxt.getBytes();
+		send(bOutArray, sTxt.length());
+	}
+	//----------------------------------------------------
+	private class ReadThread extends Thread {
+		@Override
+		public void run() {
+			super.run();
+			while(!isInterrupted()) {
+				try
+				{
+					if (mInputStream == null) return;
+					byte[] buffer=new byte[DevComm.MAX_DATA_LEN];
+					int size = mInputStream.read(buffer);
+					if (size > 0){
+						ComBean ComRecData = new ComBean(sPort,buffer,size);
+						onDataReceived(ComRecData);
+					}
+					try
+					{
+						Thread.sleep(50);
+					} catch (InterruptedException e)
+					{
+						e.printStackTrace();
+					}
+				} catch (Throwable e)
+				{
+					e.printStackTrace();
+					return;
+				}
+			}
+		}
+	}
+	//----------------------------------------------------
+	private class SendThread extends Thread{
+		public boolean suspendFlag = true;
+		@Override
+		public void run() {
+			super.run();
+			while(!isInterrupted()) {
+				synchronized (this)
+				{
+					while (suspendFlag)
+					{
+						try
+						{
+							wait();
+						} catch (InterruptedException e)
+						{
+							e.printStackTrace();
+						}
+					}
+				}
+				send(getbLoopData(), 1);
+				try
+				{
+					Thread.sleep(iDelay);
+				} catch (InterruptedException e)
+				{
+					e.printStackTrace();
+				}
+			}
+		}
+
+		public void setSuspendFlag() {
+		this.suspendFlag = true;
+		}
+
+		public synchronized void setResume() {
+		this.suspendFlag = false;
+		notify();
+		}
+	}
+	//----------------------------------------------------
+	public int getBaudRate()
+	{
+		return iBaudRate;
+	}
+	public boolean setBaudRate(int iBaud)
+	{
+		if (_isOpen)
+		{
+			return false;
+		} else
+		{
+			iBaudRate = iBaud;
+			return true;
+		}
+	}
+	public boolean setBaudRate(String sBaud)
+	{
+		int iBaud = Integer.parseInt(sBaud);
+		return setBaudRate(iBaud);
+	}
+	//----------------------------------------------------
+	public String getPort()
+	{
+		return sPort;
+	}
+	public boolean setPort(String sPort)
+	{
+		if (_isOpen)
+		{
+			return false;
+		} else
+		{
+			this.sPort = sPort;
+			return true;
+		}
+	}
+	//----------------------------------------------------
+	public boolean isOpen()
+	{
+		return _isOpen;
+	}
+	//----------------------------------------------------
+	public byte[] getbLoopData()
+	{
+		return _bLoopData;
+	}
+	//----------------------------------------------------
+	public void setbLoopData(byte[] bLoopData)
+	{
+		this._bLoopData = bLoopData;
+	}
+	//----------------------------------------------------
+	public void setTxtLoopData(String sTxt){
+		this._bLoopData = sTxt.getBytes();
+	}
+	//----------------------------------------------------
+	public int getiDelay()
+	{
+		return iDelay;
+	}
+	//----------------------------------------------------
+	public void setiDelay(int iDelay)
+	{
+		this.iDelay = iDelay;
+	}
+	//----------------------------------------------------
+	public void startSend()
+	{
+		if (mSendThread != null)
+		{
+			mSendThread.setResume();
+		}
+	}
+	//----------------------------------------------------
+	public void stopSend()
+	{
+		if (mSendThread != null)
+		{
+			mSendThread.setSuspendFlag();
+		}
+	}
+	//----------------------------------------------------
+	protected abstract void onDataReceived(ComBean ComRecData);
+}

android/src/main/java/android_serialport_api/SerialPort.java

@@ -0,0 +1,89 @@
+/*
+ * Copyright 2009 Cedric Priscal
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License. 
+ */
+
+package android_serialport_api;
+
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import android.util.Log;
+
+public class SerialPort {
+
+	private static final String TAG = "SerialPort";
+
+	/*
+	 * Do not remove or rename the field mFd: it is used by native method close();
+	 */
+	private final FileDescriptor mFd;
+	private final FileInputStream mFileInputStream;
+	private final FileOutputStream mFileOutputStream;
+
+	public SerialPort(File device, int baudrate, int flags) throws SecurityException, IOException {
+
+		/* Check access permission */
+		if (!device.canRead() || !device.canWrite()) {
+			try {
+				/* Missing read/write permission, trying to chmod the file */
+				Process su;
+				su = Runtime.getRuntime().exec("/system/bin/su");
+				String cmd = "chmod 666 " + device.getAbsolutePath() + "\n"
+						+ "exit\n";
+				su.getOutputStream().write(cmd.getBytes());
+				if ((su.waitFor() != 0) || !device.canRead()
+						|| !device.canWrite()) {
+					throw new SecurityException();
+				}
+			} catch (Exception e) {
+				e.printStackTrace();
+				throw new SecurityException();
+			}
+		}
+
+		mFd = open(device.getAbsolutePath(), baudrate, flags);
+		if (mFd == null) {
+			Log.e(TAG, "native open returns null");
+			throw new IOException();
+		}
+		mFileInputStream = new FileInputStream(mFd);
+		mFileOutputStream = new FileOutputStream(mFd);
+	}
+
+	// Getters and setters
+	public InputStream getInputStream() {
+		return mFileInputStream;
+	}
+
+	public OutputStream getOutputStream() {
+		return mFileOutputStream;
+	}
+
+	// JNI
+	private native static FileDescriptor open(String path, int baudrate, int flags);
+	public native void close();
+	static {
+		try {
+			System.loadLibrary("serial_port");
+		} catch (UnsatisfiedLinkError err) {
+			err.printStackTrace();
+		}
+	}
+}

android/src/main/java/android_serialport_api/SerialPortFinder.java

@@ -0,0 +1,122 @@
+/*
+ * Copyright 2009 Cedric Priscal
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License. 
+ */
+
+package android_serialport_api;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.LineNumberReader;
+import java.util.Iterator;
+import java.util.Vector;
+
+import android.util.Log;
+
+public class SerialPortFinder {
+
+	public class Driver {
+		public Driver(String name, String root) {
+			mDriverName = name;
+			mDeviceRoot = root;
+		}
+		private final String mDriverName;
+		private final String mDeviceRoot;
+		Vector<File> mDevices = null;
+		public Vector<File> getDevices() {
+			if (mDevices == null) {
+				mDevices = new Vector<File>();
+				File dev = new File("/dev");
+				File[] files = dev.listFiles();
+				int i;
+				for (i=0; i<files.length; i++) {
+					if (files[i].getAbsolutePath().startsWith(mDeviceRoot)) {
+						Log.d(TAG, "Found new device: " + files[i]);
+						mDevices.add(files[i]);
+					}
+				}
+			}
+			return mDevices;
+		}
+		public String getName() {
+			return mDriverName;
+		}
+	}
+
+	private static final String TAG = "SerialPort";
+
+	private Vector<Driver> mDrivers = null;
+
+	Vector<Driver> getDrivers() throws IOException {
+		if (mDrivers == null) {
+			mDrivers = new Vector<Driver>();
+			LineNumberReader r = new LineNumberReader(new FileReader("/proc/tty/drivers"));
+			String l;
+			while((l = r.readLine()) != null) {
+				// Issue 3:
+				// Since driver name may contain spaces, we do not extract driver name with split()
+				String drivername = l.substring(0, 0x15).trim();
+				String[] w = l.split(" +");
+				if ((w.length >= 5) && (w[w.length-1].equals("serial"))) {
+					Log.d(TAG, "Found new driver " + drivername + " on " + w[w.length-4]);
+					mDrivers.add(new Driver(drivername, w[w.length-4]));
+				}
+			}
+			r.close();
+		}
+		return mDrivers;
+	}
+
+	public String[] getAllDevices() {
+		Vector<String> devices = new Vector<String>();
+		// Parse each driver
+		Iterator<Driver> itdriv;
+		try {
+			itdriv = getDrivers().iterator();
+			while(itdriv.hasNext()) {
+				Driver driver = itdriv.next();
+				Iterator<File> itdev = driver.getDevices().iterator();
+				while(itdev.hasNext()) {
+					String device = itdev.next().getName();
+					String value = String.format("%s (%s)", device, driver.getName());
+					devices.add(value);
+				}
+			}
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		return devices.toArray(new String[devices.size()]);
+	}
+
+	public String[] getAllDevicesPath() {
+		Vector<String> devices = new Vector<String>();
+		// Parse each driver
+		Iterator<Driver> itdriv;
+		try {
+			itdriv = getDrivers().iterator();
+			while(itdriv.hasNext()) {
+				Driver driver = itdriv.next();
+				Iterator<File> itdev = driver.getDevices().iterator();
+				while(itdev.hasNext()) {
+					String device = itdev.next().getAbsolutePath();
+					devices.add(device);
+				}
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		return devices.toArray(new String[devices.size()]);
+	}
+}

android/src/main/java/com/idworld/noemhost_and/IUsbConnState.java

@@ -0,0 +1,12 @@
+package com.idworld.noemhost_and;
+
+/**
+ * Created by KMS on 2016/8/23.
+ */
+public interface IUsbConnState {
+    void onUsbConnected();
+
+    void onUsbPermissionDenied();
+
+    void onDeviceNotFound();
+}

android/src/main/java/com/idworld/noemhost_and/UsbController.java

@@ -0,0 +1,440 @@
+package com.idworld.noemhost_and;
+
+import static android.app.PendingIntent.FLAG_IMMUTABLE;
+
+import android.app.Activity;
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.hardware.usb.UsbConstants;
+import android.hardware.usb.UsbDevice;
+import android.hardware.usb.UsbDeviceConnection;
+import android.hardware.usb.UsbEndpoint;
+import android.hardware.usb.UsbInterface;
+import android.hardware.usb.UsbManager;
+import android.os.SystemClock;
+import android.util.Log;
+import android.widget.Toast;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Iterator;
+
+/**
+ * Created by KMS on 2016/8/23.
+ */
+public class UsbController {
+    private final Context mApplicationContext;
+    private final UsbManager mUsbManager;
+    private final int VID;
+    private final int PID;
+    private int m_nEPInSize, m_nEPOutSize;
+
+    private final byte[] m_abyTransferBuf;
+    private boolean m_bInit = false;
+    private UsbDeviceConnection m_usbConn = null;
+    private UsbInterface m_usbIf = null;
+    private UsbEndpoint m_epIN = null;
+    private UsbEndpoint m_epOUT = null;
+    private final IUsbConnState mConnectionHandler;
+
+    protected static final String ACTION_USB_PERMISSION = "ch.serverbox.android.USB";
+
+    /**
+     * Activity is needed for onResult
+     *
+     * @param parentActivity
+     */
+    public UsbController(Activity parentActivity, IUsbConnState connectionHandler, int vid, int pid){
+        mConnectionHandler = connectionHandler;
+        mApplicationContext = parentActivity.getApplicationContext();
+        mUsbManager = (UsbManager) mApplicationContext.getSystemService(Context.USB_SERVICE);
+        VID = vid;
+        PID = pid;
+        m_abyTransferBuf = new byte[512];
+        //init();
+    }
+
+    public void init(){
+        enumerate(new IPermissionListener() {
+            @Override
+            public void onPermissionDenied(UsbDevice d) {
+                UsbManager usbman = (UsbManager) mApplicationContext.getSystemService(Context.USB_SERVICE);
+                PendingIntent pi = PendingIntent.getBroadcast(mApplicationContext, 0, new Intent(ACTION_USB_PERMISSION), FLAG_IMMUTABLE);
+                mApplicationContext.registerReceiver(mPermissionReceiver, new IntentFilter(ACTION_USB_PERMISSION));
+                usbman.requestPermission(d, pi);
+            }
+        });
+    }
+
+    public void uninit(){
+        if (m_usbConn != null)
+        {
+            m_usbConn.releaseInterface(m_usbIf);
+            m_usbConn.close();
+            m_usbConn = null;
+            m_bInit = false;
+        }
+
+        //stop();
+    }
+
+    public void stop()
+    {
+        try{
+            mApplicationContext.unregisterReceiver(mPermissionReceiver);
+        }catch(IllegalArgumentException e){}//bravo
+    }
+
+    public boolean IsInit(){
+        return m_bInit;
+    }
+
+    private void enumerate(IPermissionListener listener) {
+        boolean bFound = false;
+        l("enumerating");
+        HashMap<String, UsbDevice> devlist = mUsbManager.getDeviceList();
+        Iterator<UsbDevice> deviter = devlist.values().iterator();
+
+        while (deviter.hasNext()) {
+            UsbDevice d = deviter.next();
+            l("Found device: " + String.format("%04X:%04X", d.getVendorId(), d.getProductId()));
+
+            Toast.makeText(mApplicationContext, "Found device: " + String.format("%04X:%04X", d.getVendorId(), d.getProductId()), Toast.LENGTH_SHORT).show();
+
+            if (d.getVendorId() == VID && d.getProductId() == PID) {
+                bFound = true;
+                l("Device under: " + d.getDeviceName());
+                if (!mUsbManager.hasPermission(d))
+                {
+                    Toast.makeText(mApplicationContext, "enumerate, hasPermission return false" , Toast.LENGTH_SHORT).show();
+                    listener.onPermissionDenied(d);
+                }
+                else{
+                    Toast.makeText(mApplicationContext, "enumerate, GetConnInerface start" , Toast.LENGTH_SHORT).show();
+                    //startHandler(d);
+                    GetConnInerface(d);
+                    //TestComm(d);
+                    return;
+                }
+                break;
+            }
+        }
+        if (!bFound)
+        {
+            Toast.makeText(mApplicationContext, "no more devices found" , Toast.LENGTH_SHORT).show();
+            mConnectionHandler.onDeviceNotFound();
+        }
+    }
+
+    private class PermissionReceiver extends BroadcastReceiver {
+        private final IPermissionListener mPermissionListener;
+
+        public PermissionReceiver(IPermissionListener permissionListener) {
+            mPermissionListener = permissionListener;
+        }
+
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            mApplicationContext.unregisterReceiver(this);
+            if (intent.getAction().equals(ACTION_USB_PERMISSION)) {
+                if (!intent.getBooleanExtra(
+                        UsbManager.EXTRA_PERMISSION_GRANTED, false)) {
+                    mPermissionListener.onPermissionDenied(intent
+                            .getParcelableExtra(UsbManager.EXTRA_DEVICE));
+
+                    mConnectionHandler.onUsbPermissionDenied();
+                } else {
+                    l("Permission granted");
+                    UsbDevice dev = intent
+                            .getParcelableExtra(UsbManager.EXTRA_DEVICE);
+                    if (dev != null) {
+                        if (dev.getVendorId() == VID
+                                && dev.getProductId() == PID) {
+                            //startHandler(dev);// has new thread
+                            GetConnInerface(dev);
+                            //TestComm(dev);
+                        }
+                    } else {
+                        mConnectionHandler.onDeviceNotFound();
+                    }
+                }
+            }
+        }
+    }
+
+    private void GetConnInerface(UsbDevice dev){
+        int n;
+
+        m_usbConn = mUsbManager.openDevice(dev);
+
+        n = dev.getInterfaceCount();
+
+        if (n <= 0)
+            return;
+
+        if (!m_usbConn.claimInterface(dev.getInterface(0), true)) {
+            return;
+        }
+
+        m_usbIf = dev.getInterface(0);
+
+        n = m_usbIf.getEndpointCount();
+
+        if (n < 2)
+            return;
+
+        for (int i = 0; i < n; i++) {
+            if (m_usbIf.getEndpoint(i).getType() == UsbConstants.USB_ENDPOINT_XFER_BULK) {
+                if (m_usbIf.getEndpoint(i).getDirection() == UsbConstants.USB_DIR_IN)
+                    m_epIN = m_usbIf.getEndpoint(i);
+                else
+                    m_epOUT = m_usbIf.getEndpoint(i);
+            }
+        }
+
+        m_nEPInSize = m_epIN.getMaxPacketSize();
+        m_nEPOutSize = m_epOUT.getMaxPacketSize();
+
+        m_bInit = true;
+
+        //m_epOUT.getMaxPacketSize();
+
+        //Toast.makeText(mApplicationContext, "GetConnInerface OK, Out Max Size="+m_nEPOutSize+" In Max Size=" + m_nEPInSize, Toast.LENGTH_SHORT).show();
+        mConnectionHandler.onUsbConnected();
+    }
+
+    public boolean OperationInternal(byte[] pData, int nDataLen, int nTimeOut, boolean bRead)
+    {
+        byte[] w_abyTmp = new byte[31];
+        byte[] w_abyCSW = new byte[13];
+        boolean w_bRet;
+
+        Arrays.fill(w_abyTmp, (byte)0);
+        w_abyTmp[0] = 0x55;
+        w_abyTmp[1] = 0x53;
+        w_abyTmp[2] = 0x42;
+        w_abyTmp[3] = 0x43;
+        w_abyTmp[4] = 0x28;
+        w_abyTmp[5] = 0x2b;
+        w_abyTmp[6] = 0x18;
+        w_abyTmp[7] = (byte)0x89;
+        w_abyTmp[8] = (byte)(nDataLen & 0xFF);
+        w_abyTmp[9] = (byte)((nDataLen >> 8)& 0xFF);
+        w_abyTmp[10] = (byte)((nDataLen >> 16)& 0xFF);
+        w_abyTmp[11] = (byte)((nDataLen >> 24)& 0xFF);
+
+        if(bRead)
+            w_abyTmp[12] = (byte)0x80;
+        else
+            w_abyTmp[12] = 0x00;    //cCBWFlags
+
+        w_abyTmp[13] = 0x00;    //cCBWlun
+        w_abyTmp[14] = 0x0a;    //cCBWCBLength
+
+        w_abyTmp[15] = (byte)0xef;
+        if (bRead)
+            w_abyTmp[16] = (byte)0xff;
+        else
+            w_abyTmp[16] = (byte)0xfe;
+
+        // send 31bytes
+        w_bRet = UsbBulkSend(w_abyTmp, 31, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        // read or write real data
+        if (bRead)
+            w_bRet = UsbBulkReceive(pData, nDataLen, nTimeOut);
+        else
+            w_bRet = UsbBulkSend(pData, nDataLen, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        // receive csw
+        w_bRet = UsbBulkReceive(w_abyCSW, 13, nTimeOut);
+
+        return w_bRet;
+    }
+
+    public boolean UsbSCSIWrite(byte[] pCDB, int nCDBLen, byte[] pData, int nDataLen, int nTimeOut)
+    {
+        byte[] w_abyTmp = new byte[31];
+        byte[] w_abyCSW = new byte[13];
+        boolean w_bRet;
+
+        //Arrays.fill(w_abyTmp, (byte)0);
+        w_abyTmp[0] = 0x55;
+        w_abyTmp[1] = 0x53;
+        w_abyTmp[2] = 0x42;
+        w_abyTmp[3] = 0x43;
+        w_abyTmp[4] = 0x28;
+        w_abyTmp[5] = 0x2b;
+        w_abyTmp[6] = 0x18;
+        w_abyTmp[7] = (byte)0x89;
+        w_abyTmp[8] = 0x00;
+        w_abyTmp[9] = 0x00;
+        w_abyTmp[10] = 0x00;
+        w_abyTmp[11] = 0x00;
+        w_abyTmp[12] = 0x00;    //cCBWFlags
+        w_abyTmp[13] = 0x00;    //cCBWlun
+        w_abyTmp[14] = 0x0a;    //cCBWCBLength
+
+        System.arraycopy(pCDB, 0, w_abyTmp, 15, nCDBLen);
+        //System.arraycopy(pData, 0, w_abyTmp, 31, nDataLen);
+
+        w_bRet = UsbBulkSend(w_abyTmp, 31, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        w_bRet = UsbBulkSend(pData, nDataLen, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        // receive csw
+        w_bRet = UsbBulkReceive(w_abyCSW, 13, nTimeOut);
+
+        return w_bRet;
+    }
+
+    public boolean UsbSCSIRead(byte[] pCDB, int nCDBLen, byte[] pData, int nDataLen, int nTimeOut)
+    {
+        long    w_nTime;
+        byte[] w_abyTmp = new byte[31];
+        byte[] w_abyCSW = new byte[13];
+        boolean w_bRet;
+
+        //Arrays.fill(w_abyTmp, (byte)0);
+        w_abyTmp[0] = 0x55;
+        w_abyTmp[1] = 0x53;
+        w_abyTmp[2] = 0x42;
+        w_abyTmp[3] = 0x43;
+        w_abyTmp[4] = 0x28;
+        w_abyTmp[5] = 0x2b;
+        w_abyTmp[6] = 0x18;
+        w_abyTmp[7] = (byte)0x89;
+        w_abyTmp[8] = 0x00;
+        w_abyTmp[9] = 0x00;
+        w_abyTmp[10] = 0x00;
+        w_abyTmp[11] = 0x00;
+        w_abyTmp[12] = (byte)0x80;    //cCBWFlags
+        w_abyTmp[13] = 0x00;    //cCBWlun
+        w_abyTmp[14] = 0x0a;    //cCBWCBLength
+
+        System.arraycopy(pCDB, 0, w_abyTmp, 15, nCDBLen);
+
+        w_bRet = UsbBulkSend(w_abyTmp, 31, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        w_nTime = SystemClock.elapsedRealtime();
+
+        w_bRet = UsbBulkReceive(pData, nDataLen, nTimeOut);
+
+        w_nTime = SystemClock.elapsedRealtime() - w_nTime;
+
+        //Toast.makeText(mApplicationContext, "UsbSCSIRead, UsbBulkReceive Time : " + w_nTime , Toast.LENGTH_SHORT).show();
+
+        if (!w_bRet)
+            return false;
+
+        // receive csw
+        w_bRet = UsbBulkReceive(w_abyCSW, 13, nTimeOut);
+
+        return w_bRet;
+    }
+
+    private boolean UsbBulkSend(byte[] pBuf, int nLen, int nTimeOut)
+    {
+        int i, n, r, w_nRet;
+        //byte[] w_abyTmp = new byte[m_nEPOutSize];
+
+        n = nLen / m_nEPOutSize;
+        r = nLen % m_nEPOutSize;
+
+        for(i=0; i<n; i++)
+        {
+            System.arraycopy(pBuf, i*m_nEPOutSize, m_abyTransferBuf, 0, m_nEPOutSize);
+
+            w_nRet = m_usbConn.bulkTransfer(m_epOUT, m_abyTransferBuf, m_nEPOutSize, nTimeOut);
+
+            if (w_nRet != m_nEPOutSize)
+                return false;
+        }
+
+        if (r > 0)
+        {
+            System.arraycopy(pBuf, i*m_nEPOutSize, m_abyTransferBuf, 0, r);
+
+            w_nRet = m_usbConn.bulkTransfer(m_epOUT, m_abyTransferBuf, r, nTimeOut);
+
+            return w_nRet == r;
+        }
+
+        return true;
+    }
+
+    private boolean UsbBulkReceive(byte[] pBuf, int nLen, int nTimeOut)
+    {
+        int i, n, r, w_nRet;
+        //byte[] w_abyTmp = new byte[m_nEPInSize];
+
+        //w_nRet = m_usbConn.bulkTransfer(m_epIN, pBuf, nLen, nTimeOut);
+
+        //if (w_nRet != nLen)
+        //    return false;
+
+        n = nLen / m_nEPInSize;
+        r = nLen % m_nEPInSize;
+
+        //Toast.makeText(mApplicationContext, "UsbBulkReceive, Buf Len = " + pBuf.length, Toast.LENGTH_SHORT).show();
+
+        for(i=0; i<n; i++)
+        {
+            w_nRet = m_usbConn.bulkTransfer(m_epIN, m_abyTransferBuf, m_nEPInSize, nTimeOut);
+
+            if (w_nRet != m_nEPInSize)
+                return false;
+
+            System.arraycopy(m_abyTransferBuf, 0, pBuf, i*m_nEPInSize, m_nEPInSize);
+        }
+
+        if (r > 0)
+        {
+            w_nRet = m_usbConn.bulkTransfer(m_epIN, m_abyTransferBuf, r, nTimeOut);
+
+            if (w_nRet != r)
+                return false;
+
+            System.arraycopy(m_abyTransferBuf, 0, pBuf, i*m_nEPInSize, r);
+        }
+
+        return true;
+    }
+
+    // END MAIN LOOP
+    private final BroadcastReceiver mPermissionReceiver = new PermissionReceiver(
+            new IPermissionListener() {
+                @Override
+                public void onPermissionDenied(UsbDevice d) {
+                    l("Permission denied on " + d.getDeviceId());
+                }
+            });
+
+    private interface IPermissionListener {
+        void onPermissionDenied(UsbDevice d);
+    }
+
+    public final static String TAG = "USBController";
+
+    private void l(Object msg) {
+        Log.d(TAG, ">==< " + msg.toString() + " >==<");
+    }
+}

android/src/main/java/com/xiarui/zhiwen/IUsbConnState.java

@@ -0,0 +1,12 @@
+package com.xiarui.zhiwen;
+
+/**
+ * Created by KMS on 2016/8/23.
+ */
+public interface IUsbConnState {
+    void onUsbConnected();
+
+    void onUsbPermissionDenied();
+
+    void onDeviceNotFound();
+}

android/src/main/java/com/xiarui/zhiwen/UsbController.java

@@ -0,0 +1,440 @@
+package com.xiarui.zhiwen;
+
+import static android.app.PendingIntent.FLAG_IMMUTABLE;
+
+import android.app.Activity;
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.hardware.usb.UsbConstants;
+import android.hardware.usb.UsbDevice;
+import android.hardware.usb.UsbDeviceConnection;
+import android.hardware.usb.UsbEndpoint;
+import android.hardware.usb.UsbInterface;
+import android.hardware.usb.UsbManager;
+import android.os.SystemClock;
+import android.util.Log;
+import android.widget.Toast;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Iterator;
+
+/**
+ * Created by KMS on 2016/8/23.
+ */
+public class UsbController {
+    private final Context mApplicationContext;
+    private final UsbManager mUsbManager;
+    private final int VID;
+    private final int PID;
+    private int m_nEPInSize, m_nEPOutSize;
+
+    private final byte[] m_abyTransferBuf;
+    private boolean m_bInit = false;
+    private UsbDeviceConnection m_usbConn = null;
+    private UsbInterface m_usbIf = null;
+    private UsbEndpoint m_epIN = null;
+    private UsbEndpoint m_epOUT = null;
+    private final IUsbConnState mConnectionHandler;
+
+    protected static final String ACTION_USB_PERMISSION = "ch.serverbox.android.USB";
+
+    /**
+     * Activity is needed for onResult
+     *
+     * @param parentActivity
+     */
+    public UsbController(Activity parentActivity, IUsbConnState connectionHandler, int vid, int pid){
+        mConnectionHandler = connectionHandler;
+        mApplicationContext = parentActivity.getApplicationContext();
+        mUsbManager = (UsbManager) mApplicationContext.getSystemService(Context.USB_SERVICE);
+        VID = vid;
+        PID = pid;
+        m_abyTransferBuf = new byte[512];
+        //init();
+    }
+
+    public void init(){
+        enumerate(new IPermissionListener() {
+            @Override
+            public void onPermissionDenied(UsbDevice d) {
+                UsbManager usbman = (UsbManager) mApplicationContext.getSystemService(Context.USB_SERVICE);
+                PendingIntent pi = PendingIntent.getBroadcast(mApplicationContext, 0, new Intent(ACTION_USB_PERMISSION), FLAG_IMMUTABLE);
+                mApplicationContext.registerReceiver(mPermissionReceiver, new IntentFilter(ACTION_USB_PERMISSION));
+                usbman.requestPermission(d, pi);
+            }
+        });
+    }
+
+    public void uninit(){
+        if (m_usbConn != null)
+        {
+            m_usbConn.releaseInterface(m_usbIf);
+            m_usbConn.close();
+            m_usbConn = null;
+            m_bInit = false;
+        }
+
+        //stop();
+    }
+
+    public void stop()
+    {
+        try{
+            mApplicationContext.unregisterReceiver(mPermissionReceiver);
+        }catch(IllegalArgumentException e){}//bravo
+    }
+
+    public boolean IsInit(){
+        return m_bInit;
+    }
+
+    private void enumerate(IPermissionListener listener) {
+        boolean bFound = false;
+        l("enumerating");
+        HashMap<String, UsbDevice> devlist = mUsbManager.getDeviceList();
+        Iterator<UsbDevice> deviter = devlist.values().iterator();
+
+        while (deviter.hasNext()) {
+            UsbDevice d = deviter.next();
+            l("Found device: " + String.format("%04X:%04X", d.getVendorId(), d.getProductId()));
+
+//            Toast.makeText(mApplicationContext, "Found device: " + String.format("%04X:%04X", d.getVendorId(), d.getProductId()), Toast.LENGTH_SHORT).show();
+
+            if (d.getVendorId() == VID && d.getProductId() == PID) {
+                bFound = true;
+                l("Device under: " + d.getDeviceName());
+                if (!mUsbManager.hasPermission(d))
+                {
+                    Toast.makeText(mApplicationContext, "enumerate, hasPermission return false" , Toast.LENGTH_SHORT).show();
+                    listener.onPermissionDenied(d);
+                }
+                else{
+//                    Toast.makeText(mApplicationContext, "enumerate, GetConnInerface start" , Toast.LENGTH_SHORT).show();
+                    //startHandler(d);
+                    GetConnInerface(d);
+                    //TestComm(d);
+                    return;
+                }
+                break;
+            }
+        }
+        if (!bFound)
+        {
+            Toast.makeText(mApplicationContext, "no more devices found" , Toast.LENGTH_SHORT).show();
+            mConnectionHandler.onDeviceNotFound();
+        }
+    }
+
+    private class PermissionReceiver extends BroadcastReceiver {
+        private final IPermissionListener mPermissionListener;
+
+        public PermissionReceiver(IPermissionListener permissionListener) {
+            mPermissionListener = permissionListener;
+        }
+
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            mApplicationContext.unregisterReceiver(this);
+            if (intent.getAction().equals(ACTION_USB_PERMISSION)) {
+                if (!intent.getBooleanExtra(
+                        UsbManager.EXTRA_PERMISSION_GRANTED, false)) {
+                    mPermissionListener.onPermissionDenied(intent
+                            .getParcelableExtra(UsbManager.EXTRA_DEVICE));
+
+                    mConnectionHandler.onUsbPermissionDenied();
+                } else {
+                    l("Permission granted");
+                    UsbDevice dev = intent
+                            .getParcelableExtra(UsbManager.EXTRA_DEVICE);
+                    if (dev != null) {
+                        if (dev.getVendorId() == VID
+                                && dev.getProductId() == PID) {
+                            //startHandler(dev);// has new thread
+                            GetConnInerface(dev);
+                            //TestComm(dev);
+                        }
+                    } else {
+                        mConnectionHandler.onDeviceNotFound();
+                    }
+                }
+            }
+        }
+    }
+
+    private void GetConnInerface(UsbDevice dev){
+        int n;
+
+        m_usbConn = mUsbManager.openDevice(dev);
+
+        n = dev.getInterfaceCount();
+
+        if (n <= 0)
+            return;
+
+        if (!m_usbConn.claimInterface(dev.getInterface(0), true)) {
+            return;
+        }
+
+        m_usbIf = dev.getInterface(0);
+
+        n = m_usbIf.getEndpointCount();
+
+        if (n < 2)
+            return;
+
+        for (int i = 0; i < n; i++) {
+            if (m_usbIf.getEndpoint(i).getType() == UsbConstants.USB_ENDPOINT_XFER_BULK) {
+                if (m_usbIf.getEndpoint(i).getDirection() == UsbConstants.USB_DIR_IN)
+                    m_epIN = m_usbIf.getEndpoint(i);
+                else
+                    m_epOUT = m_usbIf.getEndpoint(i);
+            }
+        }
+
+        m_nEPInSize = m_epIN.getMaxPacketSize();
+        m_nEPOutSize = m_epOUT.getMaxPacketSize();
+
+        m_bInit = true;
+
+        //m_epOUT.getMaxPacketSize();
+
+        //Toast.makeText(mApplicationContext, "GetConnInerface OK, Out Max Size="+m_nEPOutSize+" In Max Size=" + m_nEPInSize, Toast.LENGTH_SHORT).show();
+        mConnectionHandler.onUsbConnected();
+    }
+
+    public boolean OperationInternal(byte[] pData, int nDataLen, int nTimeOut, boolean bRead)
+    {
+        byte[] w_abyTmp = new byte[31];
+        byte[] w_abyCSW = new byte[13];
+        boolean w_bRet;
+
+        Arrays.fill(w_abyTmp, (byte)0);
+        w_abyTmp[0] = 0x55;
+        w_abyTmp[1] = 0x53;
+        w_abyTmp[2] = 0x42;
+        w_abyTmp[3] = 0x43;
+        w_abyTmp[4] = 0x28;
+        w_abyTmp[5] = 0x2b;
+        w_abyTmp[6] = 0x18;
+        w_abyTmp[7] = (byte)0x89;
+        w_abyTmp[8] = (byte)(nDataLen & 0xFF);
+        w_abyTmp[9] = (byte)((nDataLen >> 8)& 0xFF);
+        w_abyTmp[10] = (byte)((nDataLen >> 16)& 0xFF);
+        w_abyTmp[11] = (byte)((nDataLen >> 24)& 0xFF);
+
+        if(bRead)
+            w_abyTmp[12] = (byte)0x80;
+        else
+            w_abyTmp[12] = 0x00;    //cCBWFlags
+
+        w_abyTmp[13] = 0x00;    //cCBWlun
+        w_abyTmp[14] = 0x0a;    //cCBWCBLength
+
+        w_abyTmp[15] = (byte)0xef;
+        if (bRead)
+            w_abyTmp[16] = (byte)0xff;
+        else
+            w_abyTmp[16] = (byte)0xfe;
+
+        // send 31bytes
+        w_bRet = UsbBulkSend(w_abyTmp, 31, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        // read or write real data
+        if (bRead)
+            w_bRet = UsbBulkReceive(pData, nDataLen, nTimeOut);
+        else
+            w_bRet = UsbBulkSend(pData, nDataLen, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        // receive csw
+        w_bRet = UsbBulkReceive(w_abyCSW, 13, nTimeOut);
+
+        return w_bRet;
+    }
+
+    public boolean UsbSCSIWrite(byte[] pCDB, int nCDBLen, byte[] pData, int nDataLen, int nTimeOut)
+    {
+        byte[] w_abyTmp = new byte[31];
+        byte[] w_abyCSW = new byte[13];
+        boolean w_bRet;
+
+        //Arrays.fill(w_abyTmp, (byte)0);
+        w_abyTmp[0] = 0x55;
+        w_abyTmp[1] = 0x53;
+        w_abyTmp[2] = 0x42;
+        w_abyTmp[3] = 0x43;
+        w_abyTmp[4] = 0x28;
+        w_abyTmp[5] = 0x2b;
+        w_abyTmp[6] = 0x18;
+        w_abyTmp[7] = (byte)0x89;
+        w_abyTmp[8] = 0x00;
+        w_abyTmp[9] = 0x00;
+        w_abyTmp[10] = 0x00;
+        w_abyTmp[11] = 0x00;
+        w_abyTmp[12] = 0x00;    //cCBWFlags
+        w_abyTmp[13] = 0x00;    //cCBWlun
+        w_abyTmp[14] = 0x0a;    //cCBWCBLength
+
+        System.arraycopy(pCDB, 0, w_abyTmp, 15, nCDBLen);
+        //System.arraycopy(pData, 0, w_abyTmp, 31, nDataLen);
+
+        w_bRet = UsbBulkSend(w_abyTmp, 31, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        w_bRet = UsbBulkSend(pData, nDataLen, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        // receive csw
+        w_bRet = UsbBulkReceive(w_abyCSW, 13, nTimeOut);
+
+        return w_bRet;
+    }
+
+    public boolean UsbSCSIRead(byte[] pCDB, int nCDBLen, byte[] pData, int nDataLen, int nTimeOut)
+    {
+        long    w_nTime;
+        byte[] w_abyTmp = new byte[31];
+        byte[] w_abyCSW = new byte[13];
+        boolean w_bRet;
+
+        //Arrays.fill(w_abyTmp, (byte)0);
+        w_abyTmp[0] = 0x55;
+        w_abyTmp[1] = 0x53;
+        w_abyTmp[2] = 0x42;
+        w_abyTmp[3] = 0x43;
+        w_abyTmp[4] = 0x28;
+        w_abyTmp[5] = 0x2b;
+        w_abyTmp[6] = 0x18;
+        w_abyTmp[7] = (byte)0x89;
+        w_abyTmp[8] = 0x00;
+        w_abyTmp[9] = 0x00;
+        w_abyTmp[10] = 0x00;
+        w_abyTmp[11] = 0x00;
+        w_abyTmp[12] = (byte)0x80;    //cCBWFlags
+        w_abyTmp[13] = 0x00;    //cCBWlun
+        w_abyTmp[14] = 0x0a;    //cCBWCBLength
+
+        System.arraycopy(pCDB, 0, w_abyTmp, 15, nCDBLen);
+
+        w_bRet = UsbBulkSend(w_abyTmp, 31, nTimeOut);
+
+        if (!w_bRet)
+            return false;
+
+        w_nTime = SystemClock.elapsedRealtime();
+
+        w_bRet = UsbBulkReceive(pData, nDataLen, nTimeOut);
+
+        w_nTime = SystemClock.elapsedRealtime() - w_nTime;
+
+        //Toast.makeText(mApplicationContext, "UsbSCSIRead, UsbBulkReceive Time : " + w_nTime , Toast.LENGTH_SHORT).show();
+
+        if (!w_bRet)
+            return false;
+
+        // receive csw
+        w_bRet = UsbBulkReceive(w_abyCSW, 13, nTimeOut);
+
+        return w_bRet;
+    }
+
+    private boolean UsbBulkSend(byte[] pBuf, int nLen, int nTimeOut)
+    {
+        int i, n, r, w_nRet;
+        //byte[] w_abyTmp = new byte[m_nEPOutSize];
+
+        n = nLen / m_nEPOutSize;
+        r = nLen % m_nEPOutSize;
+
+        for(i=0; i<n; i++)
+        {
+            System.arraycopy(pBuf, i*m_nEPOutSize, m_abyTransferBuf, 0, m_nEPOutSize);
+
+            w_nRet = m_usbConn.bulkTransfer(m_epOUT, m_abyTransferBuf, m_nEPOutSize, nTimeOut);
+
+            if (w_nRet != m_nEPOutSize)
+                return false;
+        }
+
+        if (r > 0)
+        {
+            System.arraycopy(pBuf, i*m_nEPOutSize, m_abyTransferBuf, 0, r);
+
+            w_nRet = m_usbConn.bulkTransfer(m_epOUT, m_abyTransferBuf, r, nTimeOut);
+
+            return w_nRet == r;
+        }
+
+        return true;
+    }
+
+    private boolean UsbBulkReceive(byte[] pBuf, int nLen, int nTimeOut)
+    {
+        int i, n, r, w_nRet;
+        //byte[] w_abyTmp = new byte[m_nEPInSize];
+
+        //w_nRet = m_usbConn.bulkTransfer(m_epIN, pBuf, nLen, nTimeOut);
+
+        //if (w_nRet != nLen)
+        //    return false;
+
+        n = nLen / m_nEPInSize;
+        r = nLen % m_nEPInSize;
+
+        //Toast.makeText(mApplicationContext, "UsbBulkReceive, Buf Len = " + pBuf.length, Toast.LENGTH_SHORT).show();
+
+        for(i=0; i<n; i++)
+        {
+            w_nRet = m_usbConn.bulkTransfer(m_epIN, m_abyTransferBuf, m_nEPInSize, nTimeOut);
+
+            if (w_nRet != m_nEPInSize)
+                return false;
+
+            System.arraycopy(m_abyTransferBuf, 0, pBuf, i*m_nEPInSize, m_nEPInSize);
+        }
+
+        if (r > 0)
+        {
+            w_nRet = m_usbConn.bulkTransfer(m_epIN, m_abyTransferBuf, r, nTimeOut);
+
+            if (w_nRet != r)
+                return false;
+
+            System.arraycopy(m_abyTransferBuf, 0, pBuf, i*m_nEPInSize, r);
+        }
+
+        return true;
+    }
+
+    // END MAIN LOOP
+    private final BroadcastReceiver mPermissionReceiver = new PermissionReceiver(
+            new IPermissionListener() {
+                @Override
+                public void onPermissionDenied(UsbDevice d) {
+                    l("Permission denied on " + d.getDeviceId());
+                }
+            });
+
+    private interface IPermissionListener {
+        void onPermissionDenied(UsbDevice d);
+    }
+
+    public final static String TAG = "USBController";
+
+    private void l(Object msg) {
+        Log.d(TAG, ">==< " + msg.toString() + " >==<");
+    }
+}

android/src/main/res/xml/device_filter.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<resource>
+   <usb-device product-id="29987" vendor-id="6790" />
+   <usb-device product-id="21795" vendor-id="6790" />
+   <usb-device product-id="30264" vendor-id="8201" />
+</resource>

android/src/test/java/com/xiarui/zhiwen/ZhiwenPluginTest.java

@@ -0,0 +1,29 @@
+package com.xiarui.zhiwen;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+import io.flutter.plugin.common.MethodCall;
+import io.flutter.plugin.common.MethodChannel;
+import org.junit.Test;
+
+/**
+ * This demonstrates a simple unit test of the Java portion of this plugin's implementation.
+ *
+ * Once you have built the plugin's example app, you can run these tests from the command
+ * line by running `./gradlew testDebugUnitTest` in the `example/android/` directory, or
+ * you can run them directly from IDEs that support JUnit such as Android Studio.
+ */
+
+public class ZhiwenPluginTest {
+  @Test
+  public void onMethodCall_getPlatformVersion_returnsExpectedValue() {
+    ZhiwenPlugin plugin = new ZhiwenPlugin();
+
+    final MethodCall call = new MethodCall("getPlatformVersion", null);
+    MethodChannel.Result mockResult = mock(MethodChannel.Result.class);
+    plugin.onMethodCall(call, mockResult);
+
+    verify(mockResult).success("Android " + android.os.Build.VERSION.RELEASE);
+  }
+}

example/.gitignore

@@ -0,0 +1,43 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

example/README.md

@@ -0,0 +1,16 @@
+# zhiwen_example
+
+Demonstrates how to use the zhiwen plugin.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook)
+
+For help getting started with Flutter development, view the
+[online documentation](https://docs.flutter.dev/), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

example/analysis_options.yaml

@@ -0,0 +1,28 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/lints.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

example/android/.gitignore

@@ -0,0 +1,13 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks

example/android/app/build.gradle

@@ -0,0 +1,58 @@
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file("local.properties")
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader("UTF-8") { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterVersionCode = localProperties.getProperty("flutter.versionCode")
+if (flutterVersionCode == null) {
+    flutterVersionCode = "1"
+}
+
+def flutterVersionName = localProperties.getProperty("flutter.versionName")
+if (flutterVersionName == null) {
+    flutterVersionName = "1.0"
+}
+
+android {
+    namespace = "com.xiarui.zhiwen_example"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "com.xiarui.zhiwen_example"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutterVersionCode.toInteger()
+        versionName = flutterVersionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}

example/android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

example/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,57 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <application
+        android:label="zhiwen_example"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
+            </intent-filter>
+
+            <meta-data android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"
+                android:resource="@xml/device_filter" />
+
+
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+
+
+
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

example/android/app/src/main/java/com/xiarui/zhiwen_example/MainActivity.java

@@ -0,0 +1,6 @@
+package com.xiarui.zhiwen_example;
+
+import io.flutter.embedding.android.FlutterActivity;
+
+public class MainActivity extends FlutterActivity {
+}

example/android/app/src/main/res/drawable-v21/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

example/android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

example/android/app/src/main/res/values-night/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

example/android/app/src/main/res/values/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

example/android/app/src/main/res/xml/device_filter.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<resource>
+   <usb-device product-id="29987" vendor-id="6790" />
+   <usb-device product-id="21795" vendor-id="6790" />
+   <usb-device product-id="30264" vendor-id="8201" />
+</resource>

example/android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

example/android/build.gradle

@@ -0,0 +1,18 @@
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = "../build"
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register("clean", Delete) {
+    delete rootProject.buildDir
+}

example/android/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.jvmargs=-Xmx4G -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true
+android.enableJetifier=true

example/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.3-all.zip

example/android/settings.gradle

@@ -0,0 +1,25 @@
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.3.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+}
+
+include ":app"

example/integration_test/plugin_integration_test.dart

@@ -0,0 +1,25 @@
+// This is a basic Flutter integration test.
+//
+// Since integration tests run in a full Flutter application, they can interact
+// with the host side of a plugin implementation, unlike Dart unit tests.
+//
+// For more information about Flutter integration tests, please see
+// https://docs.flutter.dev/cookbook/testing/integration/introduction
+
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:integration_test/integration_test.dart';
+
+import 'package:zhiwen/zhiwen.dart';
+
+void main() {
+  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+
+  testWidgets('getPlatformVersion test', (WidgetTester tester) async {
+    final Zhiwen plugin = Zhiwen();
+    final String? version = await plugin.getPlatformVersion();
+    // The version string depends on the host platform running the test, so
+    // just assert that some non-empty string is returned.
+    expect(version?.isNotEmpty, true);
+  });
+}

example/lib/main.dart

@@ -0,0 +1,130 @@
+import 'dart:math';
+
+import 'package:flutter/material.dart';
+import 'dart:async';
+
+import 'package:flutter/services.dart';
+import 'package:zhiwen/zhiwen.dart';
+
+void main() {
+  runApp(const MyApp());
+}
+
+class MyApp extends StatefulWidget {
+  const MyApp({super.key});
+
+  @override
+  State<MyApp> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  String _platformVersion = 'Unknown';
+  final _zhiwenPlugin = Zhiwen();
+
+  @override
+  void initState() {
+    super.initState();
+    initPlatformState();
+  }
+
+  // Platform messages are asynchronous, so we initialize in an async method.
+  Future<void> initPlatformState() async {
+    String platformVersion;
+    // Platform messages may fail, so we use a try/catch PlatformException.
+    // We also handle the message potentially returning null.
+    try {
+      platformVersion =
+          await _zhiwenPlugin.getPlatformVersion() ?? 'Unknown platform version';
+    } on PlatformException {
+      platformVersion = 'Failed to get platform version.';
+    }
+
+    // If the widget was removed from the tree while the asynchronous platform
+    // message was in flight, we want to discard the reply rather than calling
+    // setState to update our non-existent appearance.
+    if (!mounted) return;
+
+    setState(() {
+      _platformVersion = platformVersion;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return ScaffoldMessenger(
+      child: MaterialApp(
+        home: Scaffold(
+        appBar: AppBar(
+          title: const Text('Plugin example app'),
+        ),
+        body: Center(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Text('Running on: $_platformVersion\n'),
+              ElevatedButton(
+                onPressed: () async {
+                  bool result = await _zhiwenPlugin.openDevice("USB", 9600);
+                },
+                child: const Text('打开设备'),
+              ),
+              ElevatedButton(
+                onPressed: () async {
+                  await _zhiwenPlugin.closeDevice();
+                },
+                child: const Text('关闭设备'),
+              ),
+              ElevatedButton(
+                onPressed: () async {
+                  var random = Random();
+                  int randomNumber = random.nextInt(100); // 生成 0 到 99 的随机整数
+
+                  Map<String, dynamic> result = await _zhiwenPlugin.enrollFingerprint(randomNumber);
+                  print(result);
+                },
+                child: const Text('录入指纹'),
+              ),
+              ElevatedButton(
+                onPressed: () async {
+                  int userId = 24;
+                  Map<String, dynamic> result = await _zhiwenPlugin.verifyFingerprint(userId);
+                  print(result);
+                },
+                child: const Text('验证指纹'),
+              ),
+              ElevatedButton(
+                onPressed: () async {
+                  Map<String, dynamic> result = await _zhiwenPlugin.deleteAllFingerprint();
+                  print(result);
+                },
+                child: const Text('删除所有指纹'),
+              ),
+              ElevatedButton(
+                onPressed: () async {
+                  int userId = 2;
+                  Map<String, dynamic> result = await _zhiwenPlugin.deleteOneFingerprint(userId);
+                  print(result);
+                },
+                child: const Text('删除单个指纹'),
+              ),
+              ElevatedButton(
+                onPressed: () async {
+                  Map<String, dynamic> result = await _zhiwenPlugin.identifyFingerprint();
+                  print(result);
+                },
+                child: const Text('识别指纹'),
+              ),
+              ElevatedButton(
+                onPressed: () async {
+                  Map<String, dynamic> result = await _zhiwenPlugin.getUserCount();
+                  print(result);
+                },
+                child: const Text('获取指纹总数'),
+              ),
+            ],
+          ),
+        ),
+      ),
+    ));
+  }
+}

example/pubspec.lock

@@ -0,0 +1,283 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  async:
+    dependency: transitive
+    description:
+      name: async
+      sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.11.0"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.18.0"
+  cupertino_icons:
+    dependency: "direct main"
+    description:
+      name: cupertino_icons
+      sha256: ba631d1c7f7bef6b729a622b7b752645a2d076dba9976925b8f25725a30e1ee6
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.8"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.1"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: "5fc22d7c25582e38ad9a8515372cd9a93834027aacf1801cf01164dac0ffa08c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_driver:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      sha256: "9e8c3858111da373efc5aa341de011d9bd23e2c5c5e0c62bccf32438e192d7b1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  fuchsia_remote_debug_protocol:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  integration_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  leak_tracker:
+    dependency: transitive
+    description:
+      name: leak_tracker
+      sha256: "7f0df31977cb2c0b88585095d168e689669a2cc9b97c309665e3386f3e9d341a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.0.4"
+  leak_tracker_flutter_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_flutter_testing
+      sha256: "06e98f569d004c1315b991ded39924b21af84cf14cc94791b8aea337d25b57f8"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.3"
+  leak_tracker_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_testing
+      sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.1"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      sha256: d2323aa2060500f906aa31a895b4030b6da3ebdcc5619d14ce1aada65cd161cb
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.12.16+1"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      sha256: "0e0a020085b65b6083975e499759762399b4475f766c21668c4ecca34ea74e5a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.8.0"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      sha256: "7687075e408b093f36e6bbf6c91878cc0d4cd10f409506f7bc996f68220b9136"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.12.0"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.9.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "12220bb4b65720483f8fa9450b4332347737cf8213dd2840d8b2c823e47243ec"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.4"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.8"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      sha256: "21e54fd2faf1b5bdd5102afd25012184a6793927648ea81eea80552ac9405b32"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.2"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.10.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.11.1"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
+  sync_http:
+    dependency: transitive
+    description:
+      name: sync_http
+      sha256: "7f0cd72eca000d2e026bcd6f990b81d0ca06022ef4e32fb257b30d3d1014a961"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.1"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.1"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      sha256: "9955ae474176f7ac8ee4e989dadfb411a58c30415bcfb648fa04b2b8a03afa7f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.0"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: "3923c89304b715fb1eb6423f017651664a03bf5f4b29983627c4da791f74a4ec"
+      url: "https://pub.dev"
+    source: hosted
+    version: "14.2.1"
+  webdriver:
+    dependency: transitive
+    description:
+      name: webdriver
+      sha256: "003d7da9519e1e5f329422b36c4dcdf18d7d2978d1ba099ea4e45ba490ed845e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.3"
+  zhiwen:
+    dependency: "direct main"
+    description:
+      path: ".."
+      relative: true
+    source: path
+    version: "0.0.1"
+sdks:
+  dart: ">=3.4.3 <4.0.0"
+  flutter: ">=3.18.0-18.0.pre.54"

example/pubspec.yaml

@@ -0,0 +1,85 @@
+name: zhiwen_example
+description: "Demonstrates how to use the zhiwen plugin."
+# The following line prevents the package from being accidentally published to
+# pub.dev using `flutter pub publish`. This is preferred for private packages.
+publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+
+environment:
+  sdk: '>=3.4.3 <4.0.0'
+
+# Dependencies specify other packages that your package needs in order to work.
+# To automatically upgrade your package dependencies to the latest versions
+# consider running `flutter pub upgrade --major-versions`. Alternatively,
+# dependencies can be manually updated by changing the version numbers below to
+# the latest version available on pub.dev. To see which dependencies have newer
+# versions available, run `flutter pub outdated`.
+dependencies:
+  flutter:
+    sdk: flutter
+
+  zhiwen:
+    # When depending on this package from a real application you should use:
+    #   zhiwen: ^x.y.z
+    # See https://dart.dev/tools/pub/dependencies#version-constraints
+    # The example app is bundled with the plugin so we use a path dependency on
+    # the parent directory to use the current plugin's version.
+    path: ../
+
+  # The following adds the Cupertino Icons font to your application.
+  # Use with the CupertinoIcons class for iOS style icons.
+  cupertino_icons: ^1.0.6
+
+dev_dependencies:
+  integration_test:
+    sdk: flutter
+  flutter_test:
+    sdk: flutter
+
+  # The "flutter_lints" package below contains a set of recommended lints to
+  # encourage good coding practices. The lint set provided by the package is
+  # activated in the `analysis_options.yaml` file located at the root of your
+  # package. See that file for information about deactivating specific lint
+  # rules and activating additional ones.
+  flutter_lints: ^3.0.0
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter packages.
+flutter:
+
+  # The following line ensures that the Material Icons font is
+  # included with your application, so that you can use the icons in
+  # the material Icons class.
+  uses-material-design: true
+
+  # To add assets to your application, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware
+
+  # For details regarding adding assets from package dependencies, see
+  # https://flutter.dev/assets-and-images/#from-packages
+
+  # To add custom fonts to your application, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts from package dependencies,
+  # see https://flutter.dev/custom-fonts/#from-packages

example/test/widget_test.dart

@@ -0,0 +1,27 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility in the flutter_test package. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:zhiwen_example/main.dart';
+
+void main() {
+  testWidgets('Verify Platform version', (WidgetTester tester) async {
+    // Build our app and trigger a frame.
+    await tester.pumpWidget(const MyApp());
+
+    // Verify that platform version is retrieved.
+    expect(
+      find.byWidgetPredicate(
+        (Widget widget) => widget is Text &&
+                           widget.data!.startsWith('Running on:'),
+      ),
+      findsOneWidget,
+    );
+  });
+}

lib/zhiwen.dart

@@ -0,0 +1,40 @@
+
+import 'zhiwen_platform_interface.dart';
+
+class Zhiwen {
+  Future<String?> getPlatformVersion() {
+    return ZhiwenPlatform.instance.getPlatformVersion();
+  }
+
+  Future<bool> openDevice(String devicePath, int baudRate) {
+    return ZhiwenPlatform.instance.openDevice(devicePath, baudRate);
+  }
+
+  Future<void> closeDevice() {
+    return ZhiwenPlatform.instance.closeDevice();
+  }
+
+  Future<Map<String, dynamic>> enrollFingerprint(int userId) {
+    return ZhiwenPlatform.instance.enrollFingerprint(userId);
+  }
+
+  Future<Map<String, dynamic>> verifyFingerprint(int userId) {
+    return ZhiwenPlatform.instance.verifyFingerprint(userId);
+  }
+
+  Future<Map<String, dynamic>> deleteAllFingerprint() {
+    return ZhiwenPlatform.instance.deleteAllFingerprint();
+  }
+
+  Future<Map<String, dynamic>> deleteOneFingerprint(int userId) {
+    return ZhiwenPlatform.instance.deleteOneFingerprint(userId);
+  }
+
+  Future<Map<String, dynamic>> identifyFingerprint() {
+    return ZhiwenPlatform.instance.identifyFingerprint();
+  }
+
+  Future<Map<String, dynamic>> getUserCount() {
+    return ZhiwenPlatform.instance.getUserCount();
+  }
+}

lib/zhiwen_method_channel.dart

@@ -0,0 +1,67 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+
+import 'zhiwen_platform_interface.dart';
+
+/// An implementation of [ZhiwenPlatform] that uses method channels.
+class MethodChannelZhiwen extends ZhiwenPlatform {
+  /// The method channel used to interact with the native platform.
+  @visibleForTesting
+  final methodChannel = const MethodChannel('zhiwen');
+
+  @override
+  Future<String?> getPlatformVersion() async {
+    final version = await methodChannel.invokeMethod<String>('getPlatformVersion');
+    return version;
+  }
+
+  @override
+  Future<bool> openDevice(String devicePath, int baudRate) async {
+    final result = await methodChannel.invokeMethod<bool>(
+      'openDevice',
+      {'devicePath': devicePath, 'baudRate': baudRate},
+    );
+    return result ?? false;
+  }
+
+  @override
+  Future<void> closeDevice() async {
+    await methodChannel.invokeMethod('closeDevice');
+  }
+
+  @override
+  Future<Map<String, dynamic>> enrollFingerprint(int userId) async {
+    final result = await methodChannel.invokeMethod('enrollFingerprint', {'userId': userId});
+    return Map<String, dynamic>.from(result as Map);
+  }
+
+  @override
+  Future<Map<String, dynamic>> verifyFingerprint(int userId) async {
+    final result = await methodChannel.invokeMethod('verifyFingerprint', {'userId': userId});
+    return Map<String, dynamic>.from(result as Map);
+  }
+
+  @override
+  Future<Map<String, dynamic>> deleteAllFingerprint() async {
+    final result = await methodChannel.invokeMethod('deleteAllFingerprint');
+    return Map<String, dynamic>.from(result as Map);
+  }
+
+  @override
+  Future<Map<String, dynamic>> deleteOneFingerprint(int userId) async {
+    final result = await methodChannel.invokeMethod('deleteOneFingerprint', {'userId': userId});
+    return Map<String, dynamic>.from(result as Map);
+  }
+
+  @override
+  Future<Map<String, dynamic>> identifyFingerprint() async {
+    final result = await methodChannel.invokeMethod('identifyFingerprint');
+    return Map<String, dynamic>.from(result as Map);
+  }
+
+  @override
+  Future<Map<String, dynamic>> getUserCount() async {
+    final result = await methodChannel.invokeMethod('getUserCount');
+    return Map<String, dynamic>.from(result as Map);
+  }
+}

lib/zhiwen_platform_interface.dart

@@ -0,0 +1,38 @@
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+import 'zhiwen_method_channel.dart';
+
+abstract class ZhiwenPlatform extends PlatformInterface {
+  /// Constructs a ZhiwenPlatform.
+  ZhiwenPlatform() : super(token: _token);
+
+  static final Object _token = Object();
+
+  static ZhiwenPlatform _instance = MethodChannelZhiwen();
+
+  /// The default instance of [ZhiwenPlatform] to use.
+  ///
+  /// Defaults to [MethodChannelZhiwen].
+  static ZhiwenPlatform get instance => _instance;
+
+  Future<String?> getPlatformVersion();
+  Future<bool> openDevice(String devicePath, int baudRate);
+  Future<void> closeDevice();
+  Future<Map<String, dynamic>> enrollFingerprint(int userId);
+  Future<Map<String, dynamic>> verifyFingerprint(int userId);
+  Future<Map<String, dynamic>> deleteAllFingerprint();
+  Future<Map<String, dynamic>> deleteOneFingerprint(int userId);
+  Future<Map<String, dynamic>> identifyFingerprint();
+  Future<Map<String, dynamic>> getUserCount();
+  /// Platform-specific implementations should set this with their own
+  /// platform-specific class that extends [ZhiwenPlatform] when
+  /// they register themselves.
+  static set instance(ZhiwenPlatform instance) {
+    PlatformInterface.verifyToken(instance, _token);
+    _instance = instance;
+  }
+
+  // Future<String?> getPlatformVersion() {
+  //   throw UnimplementedError('platformVersion() has not been implemented.');
+  // }
+}

pubspec.yaml

@@ -0,0 +1,70 @@
+name: zhiwen
+description: "A new Flutter project."
+version: 0.0.1
+homepage:
+
+environment:
+  sdk: '>=3.4.3 <4.0.0'
+  flutter: '>=3.3.0'
+
+dependencies:
+  flutter:
+    sdk: flutter
+  plugin_platform_interface: ^2.0.2
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^3.0.0
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter packages.
+flutter:
+  # This section identifies this Flutter project as a plugin project.
+  # The 'pluginClass' specifies the class (in Java, Kotlin, Swift, Objective-C, etc.)
+  # which should be registered in the plugin registry. This is required for
+  # using method channels.
+  # The Android 'package' specifies package in which the registered class is.
+  # This is required for using method channels on Android.
+  # The 'ffiPlugin' specifies that native code should be built and bundled.
+  # This is required for using `dart:ffi`.
+  # All these are used by the tooling to maintain consistency when
+  # adding or updating assets for this project.
+  plugin:
+    platforms:
+      android:
+        package: com.xiarui.zhiwen
+        pluginClass: ZhiwenPlugin
+
+  # To add assets to your plugin package, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+  #
+  # For details regarding assets in packages, see
+  # https://flutter.dev/assets-and-images/#from-packages
+  #
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware
+
+  # To add custom fonts to your plugin package, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts in packages, see
+  # https://flutter.dev/custom-fonts/#from-packages

test/zhiwen_method_channel_test.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:zhiwen/zhiwen_method_channel.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  MethodChannelZhiwen platform = MethodChannelZhiwen();
+  const MethodChannel channel = MethodChannel('zhiwen');
+
+  setUp(() {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(
+      channel,
+      (MethodCall methodCall) async {
+        return '42';
+      },
+    );
+  });
+
+  tearDown(() {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(channel, null);
+  });
+
+  test('getPlatformVersion', () async {
+    expect(await platform.getPlatformVersion(), '42');
+  });
+}

test/zhiwen_test.dart

@@ -0,0 +1,29 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:zhiwen/zhiwen.dart';
+import 'package:zhiwen/zhiwen_platform_interface.dart';
+import 'package:zhiwen/zhiwen_method_channel.dart';
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+class MockZhiwenPlatform
+    with MockPlatformInterfaceMixin
+    implements ZhiwenPlatform {
+
+  @override
+  Future<String?> getPlatformVersion() => Future.value('42');
+}
+
+void main() {
+  final ZhiwenPlatform initialPlatform = ZhiwenPlatform.instance;
+
+  test('$MethodChannelZhiwen is the default instance', () {
+    expect(initialPlatform, isInstanceOf<MethodChannelZhiwen>());
+  });
+
+  test('getPlatformVersion', () async {
+    Zhiwen zhiwenPlugin = Zhiwen();
+    MockZhiwenPlatform fakePlatform = MockZhiwenPlatform();
+    ZhiwenPlatform.instance = fakePlatform;
+
+    expect(await zhiwenPlugin.getPlatformVersion(), '42');
+  });
+}