init

2025-09-06 18:38:40 +07:00 · 2025-09-06 18:38:40 +07:00 · a0f0cd5f48
commit a0f0cd5f48
98 changed files with 3834 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1 @@
+.DS_Store
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -0,0 +1,27 @@
+## 0.1.7
+
+- Fix null Exception at _$BluetoothDeviceFromJson and BluetoothManager.state (PR https://github.com/andrey-ushakov/flutter_bluetooth_basic/pull/26).
+
+## 0.1.6
+
+- Null-Safety
+
+## 0.1.5
+
+- Updated pubspec.yaml
+
+## 0.1.4
+
+- Android: start scan bug fixed (error handling)
+
+## 0.1.3
+
+- Updated README.md
+
+## 0.1.2
+
+- Added Android support
+
+## 0.0.1
+
+- iOS only support
--- a/27
+++ b/27
@ -0,0 +1,27 @@
+Copyright (c) 2020 Andrey U. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of the copyright holder nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--- a/README.md
+++ b/README.md
@ -0,0 +1,49 @@
+# flutter_bluetooth_basic
+
+Flutter plugin that allows to find bluetooth devices & send raw bytes data.
+Supports both Android and iOS.
+
+Inspired by [bluetooth_print](https://github.com/thon-ju/bluetooth_print).
+
+
+## Main Features
+* Android and iOS support
+* Scan for bluetooth devices
+* Send raw `List<int> bytes` data to a device
+
+
+## Getting Started
+
+For a full example please check */example* folder. Here are only the most important parts of the code to illustrate how to use the library.
+
+```dart
+BluetoothManager bluetoothManager = BluetoothManager.instance;
+BluetoothDevice _device;
+
+bluetoothManager.startScan(timeout: Duration(seconds: 4));
+bluetoothManager.state.listen((state) {
+    switch (state) {
+    case BluetoothManager.CONNECTED:
+        // ...
+        break;
+    case BluetoothManager.DISCONNECTED:
+        // ...
+        break;
+    default:
+        break;
+    }
+});
+// bluetoothManager.scanResults is a Stream<List<BluetoothDevice>> sending the found devices.
+
+// _device = <from bluetoothManager.scanResults>
+
+await bluetoothManager.connect(_device);
+
+List<int> bytes = latin1.encode('Hello world!\n').toList();
+await bluetoothManager.writeData(bytes);
+
+await bluetoothManager.disconnect();
+```
+
+## See also
+* Example of usage in a project: [esc_pos_printer](https://github.com/andrey-ushakov/esc_pos_printer)
--- a/android/.DS_Store
+++ b/android/.DS_Store
--- a/android/build.gradle
+++ b/android/build.gradle
@ -0,0 +1,39 @@
+group 'com.tablemi.flutter_bluetooth_basic'
+version '1.0'
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.0'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    namespace 'com.tablemi.flutter_bluetooth_basic'
+    compileSdkVersion 28
+
+    defaultConfig {
+        minSdkVersion 21
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}
+
+dependencies {
+    implementation files('libs/gprintersdkv2.jar')
+}
--- a/android/gradle.properties
+++ b/android/gradle.properties
@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
+android.useAndroidX=true
+android.enableJetifier=true
--- a/android/gradle/wrapper/gradle-wrapper.properties
+++ b/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-4.10.2-all.zip
--- a/android/libs/gprintersdkv2.jar
+++ b/android/libs/gprintersdkv2.jar
--- a/android/settings.gradle
+++ b/android/settings.gradle
@ -0,0 +1 @@
+rootProject.name = 'flutter_bluetooth_basic'
--- a/android/src/main/AndroidManifest.xml
+++ b/android/src/main/AndroidManifest.xml
@ -0,0 +1,6 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.tablemi.flutter_bluetooth_basic">
+    <uses-permission android:name="android.permission.BLUETOOTH"/>
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
+</manifest>
--- a/android/src/main/java/com/tablemi/flutter_bluetooth_basic/Constant.java
+++ b/android/src/main/java/com/tablemi/flutter_bluetooth_basic/Constant.java
@ -0,0 +1,5 @@
+package com.tablemi.flutter_bluetooth_basic;
+
+public class Constant {
+    public static final int abnormal_Disconnection = 0x011; // Abnormal disconnection
+}
--- a/android/src/main/java/com/tablemi/flutter_bluetooth_basic/DeviceConnFactoryManager.java
+++ b/android/src/main/java/com/tablemi/flutter_bluetooth_basic/DeviceConnFactoryManager.java
@ -0,0 +1,643 @@
+package com.tablemi.flutter_bluetooth_basic;
+
+import android.content.Context;
+import android.content.Intent;
+import android.hardware.usb.UsbDevice;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.util.Log;
+import com.gprinter.io.*;
+
+import java.io.IOException;
+import java.util.Vector;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+public class DeviceConnFactoryManager {
+
+    public PortManager mPort;
+
+    private static final String TAG = DeviceConnFactoryManager.class.getSimpleName();
+
+    public CONN_METHOD connMethod;
+
+    private String ip;
+
+    private int port;
+
+    private String macAddress;
+
+    private UsbDevice mUsbDevice;
+
+    private Context mContext;
+
+    private String serialPortPath;
+
+    private int baudrate;
+
+    private int id;
+
+    private static DeviceConnFactoryManager[] deviceConnFactoryManagers = new DeviceConnFactoryManager[4];
+
+    private boolean isOpenPort;
+    /**
+     * ESC查询打印机实时状态指令 // ESC query printer real-time status instruction
+     */
+    private byte[] esc = {0x10, 0x04, 0x02};
+
+    /**
+     * ESC查询打印机实时状态 缺纸状态
+     */
+    private static final int ESC_STATE_PAPER_ERR = 0x20;
+
+    /**
+     * ESC指令查询打印机实时状态 打印机开盖状态
+     */
+    private static final int ESC_STATE_COVER_OPEN = 0x04;
+
+    /**
+     * ESC指令查询打印机实时状态 打印机报错状态
+     */
+    private static final int ESC_STATE_ERR_OCCURS = 0x40;
+
+    /**
+     * TSC查询打印机状态指令
+     */
+    private byte[] tsc = {0x1b, '!', '?'};
+
+    /**
+     * TSC指令查询打印机实时状态 打印机缺纸状态
+     */
+    private static final int TSC_STATE_PAPER_ERR = 0x04;
+
+    /**
+     * TSC指令查询打印机实时状态 打印机开盖状态
+     */
+    private static final int TSC_STATE_COVER_OPEN = 0x01;
+
+    /**
+     * TSC指令查询打印机实时状态 打印机出错状态
+     */
+    private static final int TSC_STATE_ERR_OCCURS = 0x80;
+
+    private byte[] cpcl={0x1b,0x68};
+
+    /**
+     * CPCL指令查询打印机实时状态 打印机缺纸状态
+     */
+    private static final int CPCL_STATE_PAPER_ERR = 0x01;
+    /**
+     * CPCL指令查询打印机实时状态 打印机开盖状态
+     */
+    private static final int CPCL_STATE_COVER_OPEN = 0x02;
+
+    private byte[] sendCommand;
+    /**
+     * 判断打印机所使用指令是否是ESC指令
+     */
+    private PrinterCommand currentPrinterCommand;
+    public static final byte FLAG = 0x10;
+    private static final int READ_DATA = 10000;
+    private static final int DEFAUIT_COMMAND=20000;
+    private static final String READ_DATA_CNT = "read_data_cnt";
+    private static final String READ_BUFFER_ARRAY = "read_buffer_array";
+    public static final String ACTION_CONN_STATE = "action_connect_state";
+    public static final String ACTION_QUERY_PRINTER_STATE = "action_query_printer_state";
+    public static final String STATE = "state";
+    public static final String DEVICE_ID = "id";
+    public static final int CONN_STATE_DISCONNECT = 0x90;
+    public static final int CONN_STATE_CONNECTING = CONN_STATE_DISCONNECT << 1;
+    public static final int CONN_STATE_FAILED = CONN_STATE_DISCONNECT << 2;
+    public static final int CONN_STATE_CONNECTED = CONN_STATE_DISCONNECT << 3;
+    public PrinterReader reader;
+    private int queryPrinterCommandFlag;
+    private final int ESC = 1;
+    private final int TSC = 3;
+    private final int CPCL = 2;
+    public enum CONN_METHOD {
+        //蓝牙连接
+        BLUETOOTH("BLUETOOTH"),
+        //USB连接
+        USB("USB"),
+        //wifi连接
+        WIFI("WIFI"),
+        //串口连接
+        SERIAL_PORT("SERIAL_PORT");
+
+        private String name;
+
+        private CONN_METHOD(String name) {
+            this.name = name;
+        }
+
+        @Override
+        public String toString() {
+            return this.name;
+        }
+    }
+
+    public static DeviceConnFactoryManager[] getDeviceConnFactoryManagers() {
+        return deviceConnFactoryManagers;
+    }
+
+    /**
+     * 打开端口
+     *
+     * @return
+     */
+    public void openPort() {
+        deviceConnFactoryManagers[id].isOpenPort = false;
+
+        switch (deviceConnFactoryManagers[id].connMethod) {
+            case BLUETOOTH:
+                mPort = new BluetoothPort(macAddress);
+                isOpenPort = deviceConnFactoryManagers[id].mPort.openPort();
+                break;
+            case USB:
+                mPort = new UsbPort(mContext, mUsbDevice);
+                isOpenPort = mPort.openPort();
+                break;
+            case WIFI:
+                mPort = new EthernetPort(ip, port);
+                isOpenPort = mPort.openPort();
+                break;
+            case SERIAL_PORT:
+                mPort = new SerialPort(serialPortPath, baudrate, 0);
+                isOpenPort = mPort.openPort();
+                break;
+            default:
+                break;
+        }
+
+        //端口打开成功后，检查连接打印机所使用的打印机指令ESC、TSC
+        if (isOpenPort) {
+            queryCommand();
+        } else {
+            if (this.mPort != null) {
+                this.mPort=null;
+            }
+
+        }
+    }
+
+    /**
+     * 查询当前连接打印机所使用打印机指令（ESC（EscCommand.java）、TSC（LabelCommand.java））
+     */
+    private void queryCommand() {
+        //开启读取打印机返回数据线程
+        reader = new PrinterReader();
+        reader.start(); //读取数据线程
+        //查询打印机所使用指令
+        queryPrinterCommand(); //小票机连接不上  注释这行，添加下面那三行代码。使用ESC指令
+
+    }
+
+    /**
+     * 获取端口连接方式
+     *
+     * @return
+     */
+    public CONN_METHOD getConnMethod() {
+        return connMethod;
+    }
+
+    /**
+     * Get port open status (true open, false not open)
+     *
+     * @return
+     */
+    public boolean getConnState() {
+        return isOpenPort;
+    }
+
+    /**
+     * 获取连接蓝牙的物理地址
+     *
+     * @return
+     */
+    public String getMacAddress() {
+        return macAddress;
+    }
+
+    /**
+     * 获取连接网口端口号
+     *
+     * @return
+     */
+    public int getPort() {
+        return port;
+    }
+
+    /**
+     * 获取连接网口的IP
+     *
+     * @return
+     */
+    public String getIp() {
+        return ip;
+    }
+
+    /**
+     * 获取连接的USB设备信息
+     *
+     * @return
+     */
+    public UsbDevice usbDevice() {
+        return mUsbDevice;
+    }
+
+    /**
+     * 关闭端口
+     */
+    public void closePort(int id) {
+        if (this.mPort != null) {
+            if(reader!=null) {
+                reader.cancel();
+                reader = null;
+            }
+            boolean b= this.mPort.closePort();
+            if(b) {
+                this.mPort=null;
+                isOpenPort = false;
+                currentPrinterCommand = null;
+            }
+        }
+
+    }
+
+    /**
+     * 获取串口号
+     *
+     * @return
+     */
+    public String getSerialPortPath() {
+        return serialPortPath;
+    }
+
+    /**
+     * 获取波特率
+     *
+     * @return
+     */
+    public int getBaudrate() {
+        return baudrate;
+    }
+
+    public static void closeAllPort() {
+        for (DeviceConnFactoryManager deviceConnFactoryManager : deviceConnFactoryManagers) {
+            if (deviceConnFactoryManager != null) {
+                Log.e(TAG, "cloaseAllPort() id -> " + deviceConnFactoryManager.id);
+                deviceConnFactoryManager.closePort(deviceConnFactoryManager.id);
+                deviceConnFactoryManagers[deviceConnFactoryManager.id] = null;
+            }
+        }
+    }
+
+    private DeviceConnFactoryManager(Build build) {
+        this.connMethod = build.connMethod;
+        this.macAddress = build.macAddress;
+        this.port = build.port;
+        this.ip = build.ip;
+        this.mUsbDevice = build.usbDevice;
+        this.mContext = build.context;
+        this.serialPortPath = build.serialPortPath;
+        this.baudrate = build.baudrate;
+        this.id = build.id;
+        deviceConnFactoryManagers[id] = this;
+    }
+
+    /**
+     * 获取当前打印机指令
+     *
+     * @return PrinterCommand
+     */
+    public PrinterCommand getCurrentPrinterCommand() {
+        return deviceConnFactoryManagers[id].currentPrinterCommand;
+    }
+
+    public static final class Build {
+        private String ip;
+        private String macAddress;
+        private UsbDevice usbDevice;
+        private int port;
+        private CONN_METHOD connMethod;
+        private Context context;
+        private String serialPortPath;
+        private int baudrate;
+        private int id;
+
+        public DeviceConnFactoryManager.Build setIp(String ip) {
+            this.ip = ip;
+            return this;
+        }
+
+        public DeviceConnFactoryManager.Build setMacAddress(String macAddress) {
+            this.macAddress = macAddress;
+            return this;
+        }
+
+        public DeviceConnFactoryManager.Build setUsbDevice(UsbDevice usbDevice) {
+            this.usbDevice = usbDevice;
+            return this;
+        }
+
+        public DeviceConnFactoryManager.Build setPort(int port) {
+            this.port = port;
+            return this;
+        }
+
+        public DeviceConnFactoryManager.Build setConnMethod(CONN_METHOD connMethod) {
+            this.connMethod = connMethod;
+            return this;
+        }
+
+        public DeviceConnFactoryManager.Build setContext(Context context) {
+            this.context = context;
+            return this;
+        }
+
+        public DeviceConnFactoryManager.Build setId(int id) {
+            this.id = id;
+            return this;
+        }
+
+        public DeviceConnFactoryManager.Build setSerialPort(String serialPortPath) {
+            this.serialPortPath = serialPortPath;
+            return this;
+        }
+
+        public DeviceConnFactoryManager.Build setBaudrate(int baudrate) {
+            this.baudrate = baudrate;
+            return this;
+        }
+
+        public DeviceConnFactoryManager build() {
+            return new DeviceConnFactoryManager(this);
+        }
+    }
+
+    public void sendDataImmediately(final Vector<Byte> data) {
+        if (this.mPort == null) {
+            return;
+        }
+        try {
+            this.mPort.writeDataImmediately(data, 0, data.size());
+        } catch (Exception e) {
+            // Abort Send
+            mHandler.obtainMessage(Constant.abnormal_Disconnection).sendToTarget();
+            e.printStackTrace();
+
+        }
+    }
+    public void sendByteDataImmediately(final byte [] data) {
+        if (this.mPort == null) {
+            return;
+        }else {
+            Vector<Byte> datas = new Vector<>();
+            for(int i = 0; i < data.length; ++i) {
+                datas.add(Byte.valueOf(data[i]));
+            }
+            try {
+                this.mPort.writeDataImmediately(datas, 0, datas.size());
+            } catch (IOException e) {
+                // Abort Send
+                e.printStackTrace();
+                mHandler.obtainMessage(Constant.abnormal_Disconnection).sendToTarget();
+            }
+        }
+    }
+    public int readDataImmediately(byte[] buffer){
+        int r = 0;
+        if (this.mPort == null) {
+            return r;
+        }
+
+        try {
+            r =  this.mPort.readData(buffer);
+        } catch (IOException e) {
+
+        }
+
+        return  r;
+    }
+
+    /**
+     * 查询打印机当前使用的指令（ESC、CPCL、TSC、）
+     */
+    private void queryPrinterCommand() {
+        queryPrinterCommandFlag = ESC;
+        ThreadPool.getInstantiation().addSerialTask(new Runnable() {
+            @Override
+            public void run() {
+                //开启计时器，隔2000毫秒没有没返回值时发送查询打印机状态指令，先发票据，面单，标签
+                final ThreadFactoryBuilder threadFactoryBuilder = new ThreadFactoryBuilder("Timer");
+                final ScheduledExecutorService scheduledExecutorService = new ScheduledThreadPoolExecutor(1, threadFactoryBuilder);
+                scheduledExecutorService.scheduleAtFixedRate(threadFactoryBuilder.newThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        if (currentPrinterCommand == null && queryPrinterCommandFlag > TSC) {
+                            if (reader != null) {//三种状态，查询无返回值，发送连接失败广播
+                                reader.cancel();
+                                mPort.closePort();
+                                isOpenPort = false;
+
+                                scheduledExecutorService.shutdown();
+                            }
+                        }
+                        if (currentPrinterCommand != null) {
+                            if (scheduledExecutorService != null && !scheduledExecutorService.isShutdown()) {
+                                scheduledExecutorService.shutdown();
+                            }
+                            return;
+                        }
+                        switch (queryPrinterCommandFlag) {
+                            case ESC:
+                                //发送ESC查询打印机状态指令
+                                sendCommand = esc;
+                                break;
+                            case TSC:
+                                //发送ESC查询打印机状态指令
+                                sendCommand = tsc;
+                                break;
+                            case CPCL:
+                                //发送CPCL查询打印机状态指令
+                                sendCommand = cpcl;
+                                break;
+                            default:
+                                break;
+                        }
+                        Vector<Byte> data = new Vector<>(sendCommand.length);
+                        for (int i = 0; i < sendCommand.length; i++) {
+                            data.add(sendCommand[i]);
+                        }
+                        sendDataImmediately(data);
+                        queryPrinterCommandFlag++;
+                    }
+                }), 1500, 1500, TimeUnit.MILLISECONDS);
+            }
+        });
+    }
+
+    class PrinterReader extends Thread {
+        private boolean isRun = false;
+
+        private byte[] buffer = new byte[100];
+
+        public PrinterReader() {
+            isRun = true;
+        }
+
+        @Override
+        public void run() {
+            try {
+                while (isRun) {
+                    //读取打印机返回信息,打印机没有返回纸返回-1
+                    Log.e(TAG,"wait read ");
+                    int len = readDataImmediately(buffer);
+                    Log.e(TAG," read "+len);
+                    if (len > 0) {
+                        Message message = Message.obtain();
+                        message.what = READ_DATA;
+                        Bundle bundle = new Bundle();
+                        bundle.putInt(READ_DATA_CNT, len); //数据长度
+                        bundle.putByteArray(READ_BUFFER_ARRAY, buffer); //数据
+                        message.setData(bundle);
+                        mHandler.sendMessage(message);
+                    }
+                }
+            } catch (Exception e) {//异常断开
+                if (deviceConnFactoryManagers[id] != null) {
+                    closePort(id);
+                    mHandler.obtainMessage(Constant.abnormal_Disconnection).sendToTarget();
+                }
+            }
+        }
+
+        public void cancel() {
+            isRun = false;
+        }
+    }
+
+    private Handler mHandler = new Handler() {
+        @Override
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+                case Constant.abnormal_Disconnection://异常断开连接
+                    Log.d(TAG, "abnormal disconnection");
+                    sendStateBroadcast(Constant.abnormal_Disconnection);
+                    break;
+                case DEFAUIT_COMMAND://默认模式
+
+                    break;
+                case READ_DATA:
+                    int cnt = msg.getData().getInt(READ_DATA_CNT); //数据长度 >0;
+                    byte[] buffer = msg.getData().getByteArray(READ_BUFFER_ARRAY);  //数据
+                    //这里只对查询状态返回值做处理，其它返回值可参考编程手册来解析
+                    if (buffer == null) {
+                        return;
+                    }
+                    int result = judgeResponseType(buffer[0]); //数据右移
+                    String status = "";
+                    if (sendCommand == esc) {
+                        //设置当前打印机模式为ESC模式
+                        if (currentPrinterCommand == null) {
+                            currentPrinterCommand = PrinterCommand.ESC;
+                            sendStateBroadcast(CONN_STATE_CONNECTED);
+                        } else {//查询打印机状态
+                            if (result == 0) {//打印机状态查询
+                                Intent intent = new Intent(ACTION_QUERY_PRINTER_STATE);
+                                intent.putExtra(DEVICE_ID, id);
+                                if(mContext!=null){
+                                    mContext.sendBroadcast(intent);
+                                }
+                            } else if (result == 1) {//查询打印机实时状态
+                                if ((buffer[0] & ESC_STATE_PAPER_ERR) > 0) {
+                                    status += " Printer out of paper";
+                                }
+                                if ((buffer[0] & ESC_STATE_COVER_OPEN) > 0) {
+                                    status += " Printer open cover";
+                                }
+                                if ((buffer[0] & ESC_STATE_ERR_OCCURS) > 0) {
+                                    status += " Printer error";
+                                }
+                                Log.d(TAG, status);
+                            }
+                        }
+                    }else if (sendCommand == tsc) {
+                        //设置当前打印机模式为TSC模式
+                        if (currentPrinterCommand == null) {
+                            currentPrinterCommand = PrinterCommand.TSC;
+                            sendStateBroadcast(CONN_STATE_CONNECTED);
+                        } else {
+                            if (cnt == 1) {//查询打印机实时状态
+                                if ((buffer[0] & TSC_STATE_PAPER_ERR) > 0) {//缺纸
+                                    status += " Printer out of paper";
+                                }
+                                if ((buffer[0] & TSC_STATE_COVER_OPEN) > 0) {//开盖
+                                    status += " Printer open cover";
+                                }
+                                if ((buffer[0] & TSC_STATE_ERR_OCCURS) > 0) {//打印机报错
+                                    status += " Printer error";
+                                }
+                                Log.d(TAG, status);
+                            } else {//打印机状态查询
+                                Intent intent = new Intent(ACTION_QUERY_PRINTER_STATE);
+                                intent.putExtra(DEVICE_ID, id);
+                                if(mContext!=null){
+                                    mContext.sendBroadcast(intent);
+                                }
+                            }
+                        }
+                    }else if(sendCommand==cpcl){
+                        if (currentPrinterCommand == null) {
+                            currentPrinterCommand = PrinterCommand.CPCL;
+                            sendStateBroadcast(CONN_STATE_CONNECTED);
+                        }else {
+                            if (cnt == 1) {
+
+                                if ((buffer[0] ==CPCL_STATE_PAPER_ERR)) {//缺纸
+                                    status += " Printer out of paper";
+                                }
+                                if ((buffer[0] ==CPCL_STATE_COVER_OPEN)) {//开盖
+                                    status += " Printer open cover";
+                                }
+                                Log.d(TAG, status);
+                            } else {//打印机状态查询
+                                Intent intent = new Intent(ACTION_QUERY_PRINTER_STATE);
+                                intent.putExtra(DEVICE_ID, id);
+                                if(mContext!=null){
+                                    mContext.sendBroadcast(intent);
+                                }
+                            }
+                        }
+                    }
+                    break;
+                default:
+                    break;
+            }
+        }
+    };
+
+    /**
+     * 发送广播
+     * @param state
+     */
+    private void sendStateBroadcast(int state) {
+        Intent intent = new Intent(ACTION_CONN_STATE);
+        intent.putExtra(STATE, state);
+        intent.putExtra(DEVICE_ID, id);
+        if(mContext != null){
+            mContext.sendBroadcast(intent);//此处若报空指针错误，需要在清单文件application标签里注册此类，参考demo
+        }
+    }
+
+    /**
+     * 判断是实时状态（10 04 02）还是查询状态（1D 72 01）
+     */
+    private int judgeResponseType(byte r) {
+        return (byte) ((r & FLAG) >> 4);
+    }
+
+}
--- a/android/src/main/java/com/tablemi/flutter_bluetooth_basic/FlutterBluetoothBasicPlugin.java
+++ b/android/src/main/java/com/tablemi/flutter_bluetooth_basic/FlutterBluetoothBasicPlugin.java
@ -0,0 +1,318 @@
+package com.tablemi.flutter_bluetooth_basic;
+
+import android.Manifest;
+import android.app.Activity;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothManager;
+import android.bluetooth.le.BluetoothLeScanner;
+import android.bluetooth.le.ScanCallback;
+import android.bluetooth.le.ScanResult;
+import android.bluetooth.le.ScanSettings;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.PackageManager;
+import android.util.Log;
+
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Vector;
+
+import io.flutter.embedding.engine.plugins.FlutterPlugin;
+import io.flutter.embedding.engine.plugins.activity.ActivityAware;
+import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
+import io.flutter.plugin.common.EventChannel;
+import io.flutter.plugin.common.MethodCall;
+import io.flutter.plugin.common.MethodChannel;
+import io.flutter.plugin.common.PluginRegistry;
+
+public class FlutterBluetoothBasicPlugin implements
+        FlutterPlugin,
+        MethodChannel.MethodCallHandler,
+        PluginRegistry.RequestPermissionsResultListener,
+        ActivityAware {
+
+    private static final String TAG = "BluetoothBasicPlugin";
+    private static final String NAMESPACE = "flutter_bluetooth_basic";
+    private static final int REQUEST_COARSE_LOCATION_PERMISSIONS = 1451;
+
+    private MethodChannel channel;
+    private EventChannel stateChannel;
+
+    private Context context;
+    private Activity activity;
+
+    private BluetoothManager mBluetoothManager;
+    private BluetoothAdapter mBluetoothAdapter;
+    private ThreadPool threadPool;
+
+    private MethodCall pendingCall;
+    private MethodChannel.Result pendingResult;
+
+    private int id = 0;
+
+    @Override
+    public void onAttachedToEngine(FlutterPluginBinding flutterPluginBinding) {
+        context = flutterPluginBinding.getApplicationContext();
+        channel = new MethodChannel(flutterPluginBinding.getBinaryMessenger(), NAMESPACE + "/methods");
+        stateChannel = new EventChannel(flutterPluginBinding.getBinaryMessenger(), NAMESPACE + "/state");
+        channel.setMethodCallHandler(this);
+    }
+
+    @Override
+    public void onDetachedFromEngine(FlutterPluginBinding binding) {
+        channel.setMethodCallHandler(null);
+        channel = null;
+        stateChannel.setStreamHandler(null);
+        stateChannel = null;
+    }
+
+    @Override
+    public void onAttachedToActivity(ActivityPluginBinding binding) {
+        this.activity = binding.getActivity();
+        binding.addRequestPermissionsResultListener(this);
+
+        mBluetoothManager = (BluetoothManager) activity.getSystemService(Context.BLUETOOTH_SERVICE);
+        mBluetoothAdapter = mBluetoothManager.getAdapter();
+
+        if (stateChannel != null) {
+            stateChannel.setStreamHandler(stateStreamHandler);
+        }
+    }
+
+    @Override
+    public void onDetachedFromActivityForConfigChanges() {
+        activity = null;
+    }
+
+    @Override
+    public void onReattachedToActivityForConfigChanges(ActivityPluginBinding binding) {
+        onAttachedToActivity(binding);
+    }
+
+    @Override
+    public void onDetachedFromActivity() {
+        activity = null;
+    }
+
+    @Override
+    public void onMethodCall(MethodCall call, MethodChannel.Result result) {
+        if (mBluetoothAdapter == null && !"isAvailable".equals(call.method)) {
+            result.error("bluetooth_unavailable", "Bluetooth is unavailable", null);
+            return;
+        }
+
+        final Map<String, Object> args = call.arguments();
+
+        switch (call.method) {
+            case "state":
+                state(result);
+                break;
+            case "isAvailable":
+                result.success(mBluetoothAdapter != null);
+                break;
+            case "isOn":
+                result.success(mBluetoothAdapter.isEnabled());
+                break;
+            case "isConnected":
+                result.success(threadPool != null);
+                break;
+            case "startScan":
+                if (ContextCompat.checkSelfPermission(activity, Manifest.permission.ACCESS_COARSE_LOCATION)
+                        != PackageManager.PERMISSION_GRANTED) {
+                    ActivityCompat.requestPermissions(
+                            activity,
+                            new String[]{Manifest.permission.ACCESS_COARSE_LOCATION},
+                            REQUEST_COARSE_LOCATION_PERMISSIONS);
+                    pendingCall = call;
+                    pendingResult = result;
+                    break;
+                }
+                startScan(call, result);
+                break;
+            case "stopScan":
+                stopScan();
+                result.success(null);
+                break;
+            case "connect":
+                connect(result, args);
+                break;
+            case "disconnect":
+                result.success(disconnect());
+                break;
+            case "destroy":
+                result.success(destroy());
+                break;
+            case "writeData":
+                writeData(result, args);
+                break;
+            default:
+                result.notImplemented();
+                break;
+        }
+    }
+
+    private void startScan(MethodCall call, MethodChannel.Result result) {
+        try {
+            startScan();
+            result.success(null);
+        } catch (Exception e) {
+            result.error("startScan", e.getMessage(), null);
+        }
+    }
+
+    private void state(MethodChannel.Result result) {
+        try {
+            result.success(mBluetoothAdapter.getState());
+        } catch (SecurityException e) {
+            result.error("invalid_argument", "Argument 'address' not found", null);
+        }
+    }
+
+    private void startScan() throws IllegalStateException {
+        BluetoothLeScanner scanner = mBluetoothAdapter.getBluetoothLeScanner();
+        if (scanner == null)
+            throw new IllegalStateException("getBluetoothLeScanner() is null. Is the Adapter on?");
+
+        ScanSettings settings = new ScanSettings.Builder().setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY).build();
+        scanner.startScan(null, settings, mScanCallback);
+    }
+
+    private void stopScan() {
+        BluetoothLeScanner scanner = mBluetoothAdapter.getBluetoothLeScanner();
+        if (scanner != null) scanner.stopScan(mScanCallback);
+    }
+
+    private final ScanCallback mScanCallback = new ScanCallback() {
+        @Override
+        public void onScanResult(int callbackType, ScanResult result) {
+            BluetoothDevice device = result.getDevice();
+            if (device != null && device.getName() != null) {
+                invokeMethodUIThread("ScanResult", device);
+            }
+        }
+    };
+
+    private void invokeMethodUIThread(final String name, final BluetoothDevice device) {
+        final Map<String, Object> ret = new HashMap<>();
+        ret.put("address", device.getAddress());
+        ret.put("name", device.getName());
+        ret.put("type", device.getType());
+
+        activity.runOnUiThread(() -> channel.invokeMethod(name, ret));
+    }
+
+    private void connect(MethodChannel.Result result, Map<String, Object> args) {
+        if (args.containsKey("address")) {
+            String address = (String) args.get("address");
+            disconnect();
+
+            new DeviceConnFactoryManager.Build()
+                    .setId(id)
+                    .setConnMethod(DeviceConnFactoryManager.CONN_METHOD.BLUETOOTH)
+                    .setMacAddress(address)
+                    .build();
+
+            threadPool = ThreadPool.getInstantiation();
+            threadPool.addSerialTask(() -> DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].openPort());
+
+            result.success(true);
+        } else {
+            result.error("invalid_argument", "Argument 'address' not found", null);
+        }
+    }
+
+    private boolean disconnect() {
+        if (DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id] != null &&
+                DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].mPort != null) {
+            DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].reader.cancel();
+            DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].mPort.closePort();
+            DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].mPort = null;
+        }
+        return true;
+    }
+
+    private boolean destroy() {
+        DeviceConnFactoryManager.closeAllPort();
+        if (threadPool != null) {
+            threadPool.stopThreadPool();
+        }
+        return true;
+    }
+
+    private void writeData(MethodChannel.Result result, Map<String, Object> args) {
+        if (args.containsKey("bytes")) {
+            final ArrayList<Integer> bytes = (ArrayList<Integer>) args.get("bytes");
+
+            threadPool = ThreadPool.getInstantiation();
+            threadPool.addSerialTask(() -> {
+                Vector<Byte> vectorData = new Vector<>();
+                for (Integer val : bytes) {
+                    vectorData.add(Byte.valueOf(Integer.toString(val > 127 ? val - 256 : val)));
+                }
+                DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].sendDataImmediately(vectorData);
+            });
+        } else {
+            result.error("bytes_empty", "Bytes param is empty", null);
+        }
+    }
+
+    @Override
+    public boolean onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+        if (requestCode == REQUEST_COARSE_LOCATION_PERMISSIONS) {
+            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                startScan(pendingCall, pendingResult);
+            } else {
+                pendingResult.error("no_permissions", "This app requires location permissions for scanning", null);
+                pendingResult = null;
+            }
+            return true;
+        }
+        return false;
+    }
+
+    private final EventChannel.StreamHandler stateStreamHandler = new EventChannel.StreamHandler() {
+        private EventChannel.EventSink sink;
+
+        private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                final String action = intent.getAction();
+                Log.d(TAG, "stateStreamHandler, current action: " + action);
+
+                if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(action)) {
+                    threadPool = null;
+                    sink.success(intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, -1));
+                } else if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action)) {
+                    sink.success(1);
+                } else if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)) {
+                    threadPool = null;
+                    sink.success(0);
+                }
+            }
+        };
+
+        @Override
+        public void onListen(Object o, EventChannel.EventSink eventSink) {
+            sink = eventSink;
+            IntentFilter filter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);
+            filter.addAction(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED);
+            filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
+            filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
+            activity.registerReceiver(mReceiver, filter);
+        }
+
+        @Override
+        public void onCancel(Object o) {
+            sink = null;
+            activity.unregisterReceiver(mReceiver);
+        }
+    };
+}
--- a/android/src/main/java/com/tablemi/flutter_bluetooth_basic/PrinterCommand.java
+++ b/android/src/main/java/com/tablemi/flutter_bluetooth_basic/PrinterCommand.java
@ -0,0 +1,7 @@
+package com.tablemi.flutter_bluetooth_basic;
+
+public enum PrinterCommand {
+    ESC,
+    TSC,
+    CPCL
+}
--- a/android/src/main/java/com/tablemi/flutter_bluetooth_basic/ThreadFactoryBuilder.java
+++ b/android/src/main/java/com/tablemi/flutter_bluetooth_basic/ThreadFactoryBuilder.java
@ -0,0 +1,21 @@
+package com.tablemi.flutter_bluetooth_basic;
+
+import java.util.concurrent.ThreadFactory;
+
+public class ThreadFactoryBuilder implements ThreadFactory {
+
+    private String name;
+    private int counter;
+
+    public ThreadFactoryBuilder(String name) {
+        this.name = name;
+        counter = 1;
+    }
+
+    @Override
+    public Thread newThread(Runnable runnable) {
+        Thread thread = new Thread(runnable, name);
+        thread.setName("ThreadFactoryBuilder_" + name + "_" + counter);
+        return thread;
+    }
+}
--- a/android/src/main/java/com/tablemi/flutter_bluetooth_basic/ThreadPool.java
+++ b/android/src/main/java/com/tablemi/flutter_bluetooth_basic/ThreadPool.java
@ -0,0 +1,102 @@
+package com.tablemi.flutter_bluetooth_basic;
+
+import android.util.Log;
+
+import java.util.ArrayDeque;
+import java.util.concurrent.*;
+
+
+public class ThreadPool {
+
+    private Runnable mActive;
+
+    private static ThreadPool threadPool;
+    /**
+     * java线程池
+     */
+    private ThreadPoolExecutor threadPoolExecutor;
+
+    /**
+     * 系统最大可用线程
+     */
+    private final static int CPU_AVAILABLE = Runtime.getRuntime().availableProcessors();
+
+    /**
+     * 最大线程数
+     */
+    private final static int MAX_POOL_COUNTS = CPU_AVAILABLE * 2 + 1;
+
+    /**
+     * 线程存活时间
+     */
+    private final static long AVAILABLE = 1L;
+
+    /**
+     * 核心线程数
+     */
+    private final static int CORE_POOL_SIZE = CPU_AVAILABLE + 1;
+
+    /**
+     * 线程池缓存队列
+     */
+    private BlockingQueue<Runnable> mWorkQueue = new ArrayBlockingQueue<>(CORE_POOL_SIZE);
+
+    private ArrayDeque<Runnable> mArrayDeque = new ArrayDeque<>();
+
+    private ThreadFactory threadFactory = new ThreadFactoryBuilder("ThreadPool");
+
+    private ThreadPool() {
+        threadPoolExecutor = new ThreadPoolExecutor(CORE_POOL_SIZE, MAX_POOL_COUNTS, AVAILABLE, TimeUnit.SECONDS, mWorkQueue,threadFactory);
+    }
+
+    public static ThreadPool getInstantiation() {
+        if (threadPool == null) {
+            threadPool = new ThreadPool();
+        }
+        return threadPool;
+    }
+
+    public void addParallelTask(Runnable runnable) { //并行线程
+        if (runnable == null) {
+            throw new NullPointerException("addTask(Runnable runnable)传入参数为空");
+        }
+        if (threadPoolExecutor.getActiveCount()<MAX_POOL_COUNTS) {
+            Log.i("Lee","目前有"+threadPoolExecutor.getActiveCount()+"个线程正在进行中,有"+mWorkQueue.size()+"个任务正在排队");
+          synchronized (this){
+              threadPoolExecutor.execute(runnable);
+          }
+        }
+    }
+    public synchronized void addSerialTask(final Runnable r) { //串行线程
+        if (r == null) {
+            throw new NullPointerException("addTask(Runnable runnable)传入参数为空");
+        }
+        mArrayDeque.offer(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    r.run();
+                } finally {
+                    scheduleNext();
+                }
+            }
+        });
+        // 第一次入队列时mActivie为空，因此需要手动调用scheduleNext方法
+        if (mActive == null) {
+            scheduleNext();
+        }
+    }
+    private void scheduleNext() {
+        if ((mActive = mArrayDeque.poll()) != null) {
+            threadPoolExecutor.execute(mActive);
+        }
+    }
+
+    public void stopThreadPool() {
+        if (threadPoolExecutor != null) {
+            threadPoolExecutor.shutdown();
+            threadPoolExecutor = null;
+            threadPool = null;
+        }
+    }
+}
--- a/example/.DS_Store
+++ b/example/.DS_Store
--- a/example/README.md
+++ b/example/README.md
@ -0,0 +1,16 @@
+# flutter_bluetooth_basic_example
+
+Demonstrates how to use the flutter_bluetooth_basic 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://flutter.dev/docs/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://flutter.dev/docs/cookbook)
+
+For help getting started with Flutter, view our
+[online documentation](https://flutter.dev/docs), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.
--- a/example/android/app/build.gradle
+++ b/example/android/app/build.gradle
@ -0,0 +1,61 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 28
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "com.tablemi.flutter_bluetooth_basic_example"
+        minSdkVersion 21
+        targetSdkVersion 28
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    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 '../..'
+}
+
+dependencies {
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+}
--- a/example/android/app/src/debug/AndroidManifest.xml
+++ b/example/android/app/src/debug/AndroidManifest.xml
@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.tablemi.flutter_bluetooth_basic_example">
+    <!-- Flutter 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>
--- a/example/android/app/src/main/AndroidManifest.xml
+++ b/example/android/app/src/main/AndroidManifest.xml
@ -0,0 +1,30 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.tablemi.flutter_bluetooth_basic_example">
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <application
+        android:name="io.flutter.app.FlutterApplication"
+        android:label="flutter_bluetooth_basic_example"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-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>
+</manifest>
--- a/example/android/app/src/main/java/com/tablemi/flutter_bluetooth_basic_example/MainActivity.java
+++ b/example/android/app/src/main/java/com/tablemi/flutter_bluetooth_basic_example/MainActivity.java
@ -0,0 +1,13 @@
+package com.tablemi.flutter_bluetooth_basic_example;
+
+import androidx.annotation.NonNull;
+import io.flutter.embedding.android.FlutterActivity;
+import io.flutter.embedding.engine.FlutterEngine;
+import io.flutter.plugins.GeneratedPluginRegistrant;
+
+public class MainActivity extends FlutterActivity {
+  @Override
+  public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
+    GeneratedPluginRegistrant.registerWith(flutterEngine);
+  }
+}
--- a/example/android/app/src/main/res/drawable/launch_background.xml
+++ b/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>
--- a/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
+++ b/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
--- a/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
+++ b/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
--- a/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
+++ b/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
--- a/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
+++ b/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
--- a/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
+++ b/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
--- a/example/android/app/src/main/res/values/styles.xml
+++ b/example/android/app/src/main/res/values/styles.xml
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+</resources>
--- a/example/android/app/src/profile/AndroidManifest.xml
+++ b/example/android/app/src/profile/AndroidManifest.xml
@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.tablemi.flutter_bluetooth_basic_example">
+    <!-- Flutter 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>
--- a/example/android/build.gradle
+++ b/example/android/build.gradle
@ -0,0 +1,29 @@
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.3'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
--- a/example/android/gradle.properties
+++ b/example/android/gradle.properties
@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
+android.useAndroidX=true
+android.enableJetifier=true
--- a/example/android/gradle/wrapper/gradle-wrapper.properties
+++ b/example/android/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
--- a/example/android/local.properties
+++ b/example/android/local.properties
@ -0,0 +1,2 @@
+sdk.dir=/Users/andrey/Library/Android/sdk
+flutter.sdk=/Users/andrey/development/flutter
--- a/example/android/settings.gradle
+++ b/example/android/settings.gradle
@ -0,0 +1,15 @@
+include ':app'
+
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
+
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}
--- a/example/ios/Flutter/AppFrameworkInfo.plist
+++ b/example/ios/Flutter/AppFrameworkInfo.plist
@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>$(DEVELOPMENT_LANGUAGE)</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>8.0</string>
+</dict>
+</plist>
--- a/example/ios/Flutter/Debug.xcconfig
+++ b/example/ios/Flutter/Debug.xcconfig
@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "Generated.xcconfig"
--- a/example/ios/Flutter/Generated.xcconfig
+++ b/example/ios/Flutter/Generated.xcconfig
@ -0,0 +1,13 @@
+// This is a generated file; do not edit or check into version control.
+FLUTTER_ROOT=/Users/andrey/development/flutter
+FLUTTER_APPLICATION_PATH=/Users/andrey/code/projects/flutter/flutter_bluetooth_basic/example
+COCOAPODS_PARALLEL_CODE_SIGN=true
+FLUTTER_TARGET=lib/main.dart
+FLUTTER_BUILD_DIR=build
+FLUTTER_BUILD_NAME=1.0.0
+FLUTTER_BUILD_NUMBER=1
+EXCLUDED_ARCHS[sdk=iphonesimulator*]=i386
+DART_OBFUSCATION=false
+TRACK_WIDGET_CREATION=false
+TREE_SHAKE_ICONS=false
+PACKAGE_CONFIG=.packages
--- a/example/ios/Flutter/Release.xcconfig
+++ b/example/ios/Flutter/Release.xcconfig
@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#include "Generated.xcconfig"
--- a/example/ios/Flutter/flutter_export_environment.sh
+++ b/example/ios/Flutter/flutter_export_environment.sh
@ -0,0 +1,13 @@
+#!/bin/sh
+# This is a generated file; do not edit or check into version control.
+export "FLUTTER_ROOT=/Users/andrey/development/flutter"
+export "FLUTTER_APPLICATION_PATH=/Users/andrey/code/projects/flutter/flutter_bluetooth_basic/example"
+export "COCOAPODS_PARALLEL_CODE_SIGN=true"
+export "FLUTTER_TARGET=lib/main.dart"
+export "FLUTTER_BUILD_DIR=build"
+export "FLUTTER_BUILD_NAME=1.0.0"
+export "FLUTTER_BUILD_NUMBER=1"
+export "DART_OBFUSCATION=false"
+export "TRACK_WIDGET_CREATION=false"
+export "TREE_SHAKE_ICONS=false"
+export "PACKAGE_CONFIG=.packages"
--- a/example/ios/Podfile
+++ b/example/ios/Podfile
@ -0,0 +1,87 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def parse_KV_file(file, separator='=')
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return [];
+  end
+  generated_key_values = {}
+  skip_line_start_symbols = ["#", "/"]
+  File.foreach(file_abs_path) do |line|
+    next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }
+    plugin = line.split(pattern=separator)
+    if plugin.length == 2
+      podname = plugin[0].strip()
+      path = plugin[1].strip()
+      podpath = File.expand_path("#{path}", file_abs_path)
+      generated_key_values[podname] = podpath
+    else
+      puts "Invalid plugin specification: #{line}"
+    end
+  end
+  generated_key_values
+end
+
+target 'Runner' do
+  # Flutter Pod
+
+  copied_flutter_dir = File.join(__dir__, 'Flutter')
+  copied_framework_path = File.join(copied_flutter_dir, 'Flutter.framework')
+  copied_podspec_path = File.join(copied_flutter_dir, 'Flutter.podspec')
+  unless File.exist?(copied_framework_path) && File.exist?(copied_podspec_path)
+    # Copy Flutter.framework and Flutter.podspec to Flutter/ to have something to link against if the xcode backend script has not run yet.
+    # That script will copy the correct debug/profile/release version of the framework based on the currently selected Xcode configuration.
+    # CocoaPods will not embed the framework on pod install (before any build phases can generate) if the dylib does not exist.
+
+    generated_xcode_build_settings_path = File.join(copied_flutter_dir, 'Generated.xcconfig')
+    unless File.exist?(generated_xcode_build_settings_path)
+      raise "Generated.xcconfig must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+    end
+    generated_xcode_build_settings = parse_KV_file(generated_xcode_build_settings_path)
+    cached_framework_dir = generated_xcode_build_settings['FLUTTER_FRAMEWORK_DIR'];
+
+    unless File.exist?(copied_framework_path)
+      FileUtils.cp_r(File.join(cached_framework_dir, 'Flutter.framework'), copied_flutter_dir)
+    end
+    unless File.exist?(copied_podspec_path)
+      FileUtils.cp(File.join(cached_framework_dir, 'Flutter.podspec'), copied_flutter_dir)
+    end
+  end
+
+  # Keep pod path relative so it can be checked into Podfile.lock.
+  pod 'Flutter', :path => 'Flutter'
+
+  # Plugin Pods
+
+  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
+  # referring to absolute paths on developers' machines.
+  system('rm -rf .symlinks')
+  system('mkdir -p .symlinks/plugins')
+  plugin_pods = parse_KV_file('../.flutter-plugins')
+  plugin_pods.each do |name, path|
+    symlink = File.join('.symlinks', 'plugins', name)
+    File.symlink(path, symlink)
+    pod name, :path => File.join(symlink, 'ios')
+  end
+end
+
+# Prevent Cocoapods from embedding a second Flutter framework and causing an error with the new Xcode build system.
+install! 'cocoapods', :disable_input_output_paths => true
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      config.build_settings['ENABLE_BITCODE'] = 'NO'
+    end
+  end
+end
--- a/example/ios/Podfile.lock
+++ b/example/ios/Podfile.lock
@ -0,0 +1,28 @@
+PODS:
+  - Flutter (1.0.0)
+  - flutter_bluetooth_basic (0.0.1):
+    - Flutter
+  - path_provider (0.0.1):
+    - Flutter
+
+DEPENDENCIES:
+  - Flutter (from `Flutter`)
+  - flutter_bluetooth_basic (from `.symlinks/plugins/flutter_bluetooth_basic/ios`)
+  - path_provider (from `.symlinks/plugins/path_provider/ios`)
+
+EXTERNAL SOURCES:
+  Flutter:
+    :path: Flutter
+  flutter_bluetooth_basic:
+    :path: ".symlinks/plugins/flutter_bluetooth_basic/ios"
+  path_provider:
+    :path: ".symlinks/plugins/path_provider/ios"
+
+SPEC CHECKSUMS:
+  Flutter: 0e3d915762c693b495b44d77113d4970485de6ec
+  flutter_bluetooth_basic: 0e4e27e22b50b3a25cc1d1e131953feb4af414f4
+  path_provider: fb74bd0465e96b594bb3b5088ee4a4e7bb1f2a9d
+
+PODFILE CHECKSUM: 3dbe063e9c90a5d7c9e4e76e70a821b9e2c1d271
+
+COCOAPODS: 1.8.4
--- a/example/ios/Runner.xcodeproj/project.pbxproj
+++ b/example/ios/Runner.xcodeproj/project.pbxproj
@ -0,0 +1,579 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		3B80C3941E831B6300D905FE /* App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3B80C3931E831B6300D905FE /* App.framework */; };
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+		92AC2DEF0FE1AD4381FF46F0 /* libPods-Runner.a in Frameworks */ = {isa = PBXBuildFile; fileRef = EBFC51A13E362D761AD92AB2 /* libPods-Runner.a */; };
+		9705A1C61CF904A100538489 /* Flutter.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9740EEBA1CF902C7004384FC /* Flutter.framework */; };
+		9705A1C71CF904A300538489 /* Flutter.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 9740EEBA1CF902C7004384FC /* Flutter.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
+		978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */; };
+		97C146F31CF9000F007C117D /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 97C146F21CF9000F007C117D /* main.m */; };
+		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
+		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
+		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		9705A1C41CF9048500538489 /* Embed Frameworks */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+				3B80C3951E831B6300D905FE /* App.framework in Embed Frameworks */,
+				9705A1C71CF904A300538489 /* Flutter.framework in Embed Frameworks */,
+			);
+			name = "Embed Frameworks";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
+		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		3B80C3931E831B6300D905FE /* App.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = App.framework; path = Flutter/App.framework; sourceTree = "<group>"; };
+		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
+		7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
+		7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
+		89FC27FEE05299E830AC2A76 /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
+		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
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+		97C146F21CF9000F007C117D /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
+		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
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+		F3316B1877E9B2F711FD6F98 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		97C146EB1CF9000F007C117D /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9705A1C61CF904A100538489 /* Flutter.framework in Frameworks */,
+				3B80C3941E831B6300D905FE /* App.framework in Frameworks */,
+				92AC2DEF0FE1AD4381FF46F0 /* libPods-Runner.a in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		230AA67EDFEF05D8734536AD /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				F3316B1877E9B2F711FD6F98 /* Pods-Runner.debug.xcconfig */,
+				89FC27FEE05299E830AC2A76 /* Pods-Runner.release.xcconfig */,
+				B365B4D6871B56C59378C336 /* Pods-Runner.profile.xcconfig */,
+			);
+			path = Pods;
+			sourceTree = "<group>";
+		};
+		4BC1EA12D25798CAE0ED6C20 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				EBFC51A13E362D761AD92AB2 /* libPods-Runner.a */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		9740EEB11CF90186004384FC /* Flutter */ = {
+			isa = PBXGroup;
+			children = (
+				3B80C3931E831B6300D905FE /* App.framework */,
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
+				9740EEBA1CF902C7004384FC /* Flutter.framework */,
+				9740EEB21CF90195004384FC /* Debug.xcconfig */,
+				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
+				9740EEB31CF90195004384FC /* Generated.xcconfig */,
+			);
+			name = Flutter;
+			sourceTree = "<group>";
+		};
+		97C146E51CF9000F007C117D = {
+			isa = PBXGroup;
+			children = (
+				9740EEB11CF90186004384FC /* Flutter */,
+				97C146F01CF9000F007C117D /* Runner */,
+				97C146EF1CF9000F007C117D /* Products */,
+				230AA67EDFEF05D8734536AD /* Pods */,
+				4BC1EA12D25798CAE0ED6C20 /* Frameworks */,
+			);
+			sourceTree = "<group>";
+		};
+		97C146EF1CF9000F007C117D /* Products */ = {
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+}
--- a/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
+++ b/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>
--- a/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
+++ b/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
--- a/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@ -0,0 +1,87 @@
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+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
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+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
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+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
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+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
--- a/example/ios/Runner.xcworkspace/contents.xcworkspacedata
+++ b/example/ios/Runner.xcworkspace/contents.xcworkspacedata
@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>
--- a/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
+++ b/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
--- a/example/ios/Runner/AppDelegate.h
+++ b/example/ios/Runner/AppDelegate.h
@ -0,0 +1,6 @@
+#import <Flutter/Flutter.h>
+#import <UIKit/UIKit.h>
+
+@interface AppDelegate : FlutterAppDelegate
+
+@end
--- a/example/ios/Runner/AppDelegate.m
+++ b/example/ios/Runner/AppDelegate.m
@ -0,0 +1,13 @@
+#import "AppDelegate.h"
+#import "GeneratedPluginRegistrant.h"
+
+@implementation AppDelegate
+
+- (BOOL)application:(UIApplication *)application
+    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+  [GeneratedPluginRegistrant registerWithRegistry:self];
+  // Override point for customization after application launch.
+  return [super application:application didFinishLaunchingWithOptions:launchOptions];
+}
+
+@end
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
--- a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
--- a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
+++ b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
--- a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
+++ b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
--- a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
+++ b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
--- a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
+++ b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
--- a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
+++ b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
--- a/example/ios/Runner/Base.lproj/LaunchScreen.storyboard
+++ b/example/ios/Runner/Base.lproj/LaunchScreen.storyboard
@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>
--- a/example/ios/Runner/Base.lproj/Main.storyboard
+++ b/example/ios/Runner/Base.lproj/Main.storyboard
@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>
--- a/example/ios/Runner/GeneratedPluginRegistrant.h
+++ b/example/ios/Runner/GeneratedPluginRegistrant.h
@ -0,0 +1,19 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GeneratedPluginRegistrant_h
+#define GeneratedPluginRegistrant_h
+
+#import <Flutter/Flutter.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface GeneratedPluginRegistrant : NSObject
+ (void)registerWithRegistry:(NSObject<FlutterPluginRegistry>*)registry;
+@end
+
+NS_ASSUME_NONNULL_END
+#endif /* GeneratedPluginRegistrant_h */
--- a/example/ios/Runner/GeneratedPluginRegistrant.m
+++ b/example/ios/Runner/GeneratedPluginRegistrant.m
@ -0,0 +1,28 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#import "GeneratedPluginRegistrant.h"
+
+#if __has_include(<flutter_bluetooth_basic/FlutterBluetoothBasicPlugin.h>)
+#import <flutter_bluetooth_basic/FlutterBluetoothBasicPlugin.h>
+#else
+@import flutter_bluetooth_basic;
+#endif
+
+#if __has_include(<path_provider/FLTPathProviderPlugin.h>)
+#import <path_provider/FLTPathProviderPlugin.h>
+#else
+@import path_provider;
+#endif
+
+@implementation GeneratedPluginRegistrant
+
+ (void)registerWithRegistry:(NSObject<FlutterPluginRegistry>*)registry {
+  [FlutterBluetoothBasicPlugin registerWithRegistrar:[registry registrarForPlugin:@"FlutterBluetoothBasicPlugin"]];
+  [FLTPathProviderPlugin registerWithRegistrar:[registry registrarForPlugin:@"FLTPathProviderPlugin"]];
+}
+
+@end
--- a/example/ios/Runner/Info.plist
+++ b/example/ios/Runner/Info.plist
@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>flutter_bluetooth_basic_example</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>NSBluetoothAlwaysUsageDescription</key>
+	<string>Allow App use bluetooth?</string>
+	<key>NSBluetoothPeripheralUsageDescription</key>
+	<string>Allow App use bluetooth?</string>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>bluetooth-central</string>
+		<string>bluetooth-peripheral</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+</dict>
+</plist>
--- a/example/ios/Runner/main.m
+++ b/example/ios/Runner/main.m
@ -0,0 +1,9 @@
+#import <Flutter/Flutter.h>
+#import <UIKit/UIKit.h>
+#import "AppDelegate.h"
+
+int main(int argc, char* argv[]) {
+  @autoreleasepool {
+    return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
+  }
+}
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@ -0,0 +1,202 @@
+import 'dart:convert';
+// import 'dart:typed_data';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_bluetooth_basic/flutter_bluetooth_basic.dart';
+
+void main() => runApp(MyApp());
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Bluetooth scanner',
+      theme: ThemeData(
+        primarySwatch: Colors.blue,
+      ),
+      home: MyHomePage(title: 'Bluetooth Scanner'),
+    );
+  }
+}
+
+class MyHomePage extends StatefulWidget {
+  MyHomePage({Key key, this.title}) : super(key: key);
+  final String title;
+
+  @override
+  _MyHomePageState createState() => _MyHomePageState();
+}
+
+class _MyHomePageState extends State<MyHomePage> {
+  BluetoothManager bluetoothManager = BluetoothManager.instance;
+
+  bool _connected = false;
+  BluetoothDevice _device;
+  String tips = 'no device connect';
+
+  @override
+  void initState() {
+    super.initState();
+
+    WidgetsBinding.instance.addPostFrameCallback((_) => initBluetooth());
+  }
+
+  // Platform messages are asynchronous, so we initialize in an async method.
+  Future<void> initBluetooth() async {
+    bluetoothManager.startScan(timeout: Duration(seconds: 4));
+
+    bool isConnected = await bluetoothManager.isConnected;
+
+    bluetoothManager.state.listen((state) {
+      print('cur device status: $state');
+
+      switch (state) {
+        case BluetoothManager.CONNECTED:
+          setState(() {
+            _connected = true;
+            tips = 'connect success';
+          });
+          break;
+        case BluetoothManager.DISCONNECTED:
+          setState(() {
+            _connected = false;
+            tips = 'disconnect success';
+          });
+          break;
+        default:
+          break;
+      }
+    });
+
+    if (!mounted) return;
+
+    if (isConnected) {
+      setState(() {
+        _connected = true;
+      });
+    }
+  }
+
+  void _onConnect() async {
+    if (_device != null && _device.address != null) {
+      await bluetoothManager.connect(_device);
+    } else {
+      setState(() {
+        tips = 'please select device';
+      });
+      print('please select device');
+    }
+  }
+
+  void _onDisconnect() async {
+    await bluetoothManager.disconnect();
+  }
+
+  void _sendData() async {
+    List<int> bytes = latin1.encode('Hello world!\n\n\n').toList();
+
+    // Set codetable west. Add import 'dart:typed_data';
+    // List<int> bytes = Uint8List.fromList(List.from('\x1Bt'.codeUnits)..add(6));
+    // Text with special characters
+    // bytes += latin1.encode('blåbærgrød\n\n\n');
+
+    await bluetoothManager.writeData(bytes);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(widget.title),
+      ),
+      body: RefreshIndicator(
+        onRefresh: () =>
+            bluetoothManager.startScan(timeout: Duration(seconds: 4)),
+        child: SingleChildScrollView(
+          child: Column(
+            children: <Widget>[
+              Row(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: <Widget>[
+                  Padding(
+                    padding: EdgeInsets.symmetric(vertical: 10, horizontal: 10),
+                    child: Text(tips),
+                  ),
+                ],
+              ),
+              Divider(),
+              StreamBuilder<List<BluetoothDevice>>(
+                stream: bluetoothManager.scanResults,
+                initialData: [],
+                builder: (c, snapshot) => Column(
+                  children: snapshot.data
+                      .map((d) => ListTile(
+                            title: Text(d.name ?? ''),
+                            subtitle: Text(d.address),
+                            onTap: () async {
+                              setState(() {
+                                _device = d;
+                              });
+                            },
+                            trailing:
+                                _device != null && _device.address == d.address
+                                    ? Icon(
+                                        Icons.check,
+                                        color: Colors.green,
+                                      )
+                                    : null,
+                          ))
+                      .toList(),
+                ),
+              ),
+              Divider(),
+              Container(
+                padding: EdgeInsets.fromLTRB(20, 5, 20, 10),
+                child: Column(
+                  children: <Widget>[
+                    Row(
+                      mainAxisAlignment: MainAxisAlignment.center,
+                      children: <Widget>[
+                        OutlineButton(
+                          child: Text('connect'),
+                          onPressed: _connected ? null : _onConnect,
+                        ),
+                        SizedBox(width: 10.0),
+                        OutlineButton(
+                          child: Text('disconnect'),
+                          onPressed: _connected ? _onDisconnect : null,
+                        ),
+                      ],
+                    ),
+                    OutlineButton(
+                      child: Text('Send test data'),
+                      onPressed: _connected ? _sendData : null,
+                    ),
+                  ],
+                ),
+              )
+            ],
+          ),
+        ),
+      ),
+      floatingActionButton: StreamBuilder<bool>(
+        stream: bluetoothManager.isScanning,
+        initialData: false,
+        builder: (c, snapshot) {
+          if (snapshot.data) {
+            return FloatingActionButton(
+              child: Icon(Icons.stop),
+              onPressed: () => bluetoothManager.stopScan(),
+              backgroundColor: Colors.red,
+            );
+          } else {
+            return FloatingActionButton(
+                child: Icon(Icons.search),
+                onPressed: () =>
+                    bluetoothManager.startScan(timeout: Duration(seconds: 4)));
+          }
+        },
+      ),
+    );
+  }
+}
--- a/example/pubspec.yaml
+++ b/example/pubspec.yaml
@ -0,0 +1,22 @@
+name: flutter_bluetooth_basic_example
+description: Demonstrates how to use the flutter_bluetooth_basic plugin.
+publish_to: 'none'
+
+environment:
+  sdk: ">=2.1.0 <3.0.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  cupertino_icons: ^0.1.2
+  path_provider: ^1.4.5
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+  flutter_bluetooth_basic:
+    path: ../
+
+flutter:
+  uses-material-design: true
--- a/example/test/widget_test.dart
+++ b/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 that Flutter provides. 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:flutter_bluetooth_basic_example/main.dart';
+
+void main() {
+  testWidgets('Verify Platform version', (WidgetTester tester) async {
+    // Build our app and trigger a frame.
+    await tester.pumpWidget(MyApp());
+
+    // Verify that platform version is retrieved.
+    expect(
+      find.byWidgetPredicate(
+        (Widget widget) => widget is Text &&
+                           widget.data.startsWith('Running on:'),
+      ),
+      findsOneWidget,
+    );
+  });
+}
--- a/flutter_bluetooth_basic.iml
+++ b/flutter_bluetooth_basic.iml
@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/lib" isTestSource="false" />
+      <excludeFolder url="file://$MODULE_DIR$/.dart_tool" />
+      <excludeFolder url="file://$MODULE_DIR$/.idea" />
+      <excludeFolder url="file://$MODULE_DIR$/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+      <excludeFolder url="file://$MODULE_DIR$/example/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/example/build" />
+    </content>
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Dart Packages" level="project" />
+    <orderEntry type="library" name="Dart SDK" level="project" />
+    <orderEntry type="library" name="Flutter Plugins" level="project" />
+  </component>
+</module>
--- a/ios/Classes/BLEConnecter.h
+++ b/ios/Classes/BLEConnecter.h
@ -0,0 +1,102 @@
+//
+//  Connecter.h
+//  GSDK
+//
+
+#import "Connecter.h"
+#import <CoreBluetooth/CoreBluetooth.h>
+
+@interface BLEConnecter :Connecter
+
+@property(nonatomic,strong)CBCharacteristic *airPatchChar;
+@property(nonatomic,strong)CBCharacteristic *transparentDataWriteChar;
+@property(nonatomic,strong)CBCharacteristic *transparentDataReadOrNotifyChar;
+@property(nonatomic,strong)CBCharacteristic *connectionParameterChar;
+
+@property(nonatomic,strong)CBUUID *transServiceUUID;
+@property(nonatomic,strong)CBUUID *transTxUUID;
+@property(nonatomic,strong)CBUUID *transRxUUID;
+@property(nonatomic,strong)CBUUID *disUUID1;
+@property(nonatomic,strong)CBUUID *disUUID2;
+@property(nonatomic,strong)NSArray *serviceUUID;
+
+@property(nonatomic,copy)DiscoverDevice discover;
+@property(nonatomic,copy)UpdateState updateState;
+@property(nonatomic,copy)WriteProgress writeProgress;
+
+/**数据包大小，默认130个字节*/
+@property(nonatomic,assign)NSUInteger datagramSize;
+
+@property(nonatomic,strong)CBPeripheral *connPeripheral;
+
+//+(instancetype)sharedInstance;
+
+/**
+ *  方法说明:设置特定的Service UUID，以及Service对应的具有读、写特征值
+ *  @param serviceUUID 蓝牙模块的service uuid
+ *  @param txUUID   具有写入权限特征值
+ *  @param rxUUID   具有读取权限特征值
+ */
+- (void)configureTransparentServiceUUID: (NSString *)serviceUUID txUUID:(NSString *)txUUID rxUUID:(NSString *)rxUUID;
+
+/**
+ *  方法说明：扫描外设
+ *  @param serviceUUIDs 需要连接的外设UUID
+ *  @param options 其它可选操作
+ *  @param discover 发现设备
+ *         peripheral 发现的外设
+ *         advertisementData
+ *         RSSI 外设信号强度
+ */
+-(void)scanForPeripheralsWithServices:(nullable NSArray<CBUUID *> *)serviceUUIDs options:(nullable NSDictionary<NSString *, id> *)options discover:(void(^_Nullable)(CBPeripheral *_Nullable peripheral,NSDictionary<NSString *, id> *_Nullable advertisementData,NSNumber *_Nullable RSSI))discover;
+
+/**
+ *  方法说明：停止扫描蓝牙外设
+ */
+-(void)stopScan;
+
+/**
+ *  方法说明：更新蓝牙状态
+ *  @param state 更新蓝牙状态
+ */
+-(void)didUpdateState:(void(^_Nullable)(NSInteger state))state;
+
+/**
+ *  方法说明：连接外设
+ *  @param peripheral 需要连接的外设
+ *  @param options 其它可选操作
+ *  @param timeout 连接超时
+ *  @param connectState 连接状态
+ */
+-(void)connectPeripheral:(CBPeripheral *_Nullable)peripheral options:(nullable NSDictionary<NSString *,id> *)options timeout:(NSUInteger)timeout connectBlack:(void(^_Nullable)(ConnectState state)) connectState;
+
+/**
+ *  方法说明：连接外设
+ *  @param peripheral 需要连接的外设
+ *  @param options 其它可选操作
+ */
+-(void)connectPeripheral:(CBPeripheral * _Nullable)peripheral options:(nullable NSDictionary<NSString *,id> *)options;
+
+/**
+ *  方法说明：断开连接
+ *  @param  peripheral 需要断开连接的外设
+ */
+-(void)closePeripheral:(nonnull CBPeripheral *)peripheral;
+
+/**
+ *  方法说明: 往蓝牙模块中写入数据 // Method description: write data to Bluetooth module
+ *  @param  data 往蓝牙模块中写入的数据 // Data written to the Bluetooth module
+ *  @param  progress 写入数据的进度 // Progress of writing data
+ *  @param callBack 读取蓝牙模块返回数据 // Read Bluetooth module data
+ */
+-(void)write:(NSData *_Nullable)data progress:(void(^_Nullable)(NSUInteger total,NSUInteger progress))progress receCallBack:(void (^_Nullable)(NSData *_Nullable))callBack;
+
+/**
+ *  方法说明: 往蓝牙模块中写入数据 // Method description: write data to Bluetooth module
+ *  @param characteristic   特征值
+ *  @param data 往蓝牙模块中写入的数据 // Data written to the Bluetooth module
+ *  @param type  写入方式<b>CBCharacteristicWriteWithResponse</b>写入方式是带流控写入方式。<b>CBCharacteristicWriteWithoutResponse</b>不带流控写入方式 <p><b>@see CBCharacteristicWriteType</b></p>
+ * Writing method <b>CBCharacteristicWriteWithResponse</b> The writing method is a writing method with flow control. <b>CBCharacteristicWriteWithoutResponse</b>Without flow control write method <p><b>@see CBCharacteristicWriteType</b></p>
+ */
+-(void)writeValue:(NSData *)data forCharacteristic:(nonnull CBCharacteristic *)characteristic type:(CBCharacteristicWriteType)type;
+@end
--- a/ios/Classes/Connecter.h
+++ b/ios/Classes/Connecter.h
@ -0,0 +1,44 @@
+//
+//  Connecter.h
+//  GSDK
+//
+#import <Foundation/Foundation.h>
+#import "ConnecterBlock.h"
+
+@interface Connecter:NSObject
+
+//读取数据
+@property(nonatomic,copy)ReadData readData;
+//连接状态
+@property(nonatomic,copy)ConnectDeviceState state;
+
+/**
+ * 方法说明: 连接 // Method description: connect
+ */
+-(void)connect;
+
+/**
+ *  方法说明: 连接到指定设备 // Method description: connect to the specified device
+ *  @param connectState 连接状态
+ */
+-(void)connect:(void(^)(ConnectState state))connectState;
+
+/**
+ * 方法说明: 关闭连接
+ */
+-(void)close;
+
+/**
+ *  发送数据 // send data
+ *  向输出流中写入数据 // Write data to the output stream
+ */
+-(void)write:(NSData *)data receCallBack:(void(^)(NSData *data))callBack;
+-(void)write:(NSData *)data;
+
+/**
+ *  读取数据
+ *  @parma data 读取到的数据
+ */
+-(void)read:(void(^)(NSData *data))data;
+
+@end
--- a/ios/Classes/ConnecterBlock.h
+++ b/ios/Classes/ConnecterBlock.h
@ -0,0 +1,40 @@
+//
+//  ConnecterBlock.h
+//  GSDK
+//
+
+#ifndef ConnecterBlock_h
+#define ConnecterBlock_h
+#import <CoreBluetooth/CBPeripheral.h>
+
+/**
+ *  @enum ConnectState
+ *  @discussion 连接状态
+ *  @constant CONNECT_STATE_DISCONNECT ConnectDeviceState返回state为该状态是表示已断开连接
+ *  @constant CONNECT_STATE_CONNECTING ConnectDeviceState返回state为该状态是表示正在连接中
+ *  @constant CONNECT_STATE_CONNECTED  ConnectDeviceState返回state为该状态是表示连接成功
+ *  @constant CONNECT_STATE_TIMEOUT    ConnectDeviceState返回state为该状态是表示连接超时
+ *  @constant CONNECT_STATE_FAILT      ConnectDeviceState返回state为该状态是表示连接失败
+ */
+typedef enum : NSUInteger {
+    NOT_FOUND_DEVICE,//未找到设备
+    CONNECT_STATE_DISCONNECT,//断开连接
+    CONNECT_STATE_CONNECTING,//连接中
+    CONNECT_STATE_CONNECTED,//连接上
+    CONNECT_STATE_TIMEOUT,//连接超时
+    CONNECT_STATE_FAILT//连接失败
+}ConnectState;
+
+/**发现设备 Discover devices*/
+typedef void(^DiscoverDevice)(CBPeripheral *_Nullable peripheral,NSDictionary<NSString *, id> * _Nullable advertisementData,NSNumber * _Nullable RSSI);
+/**蓝牙状态更新 Bluetooth status update*/
+typedef void(^UpdateState)(NSInteger state);
+/**连接状态 Connection Status*/
+typedef void(^ConnectDeviceState)(ConnectState state);
+/**读取数据 Read data*/
+typedef void(^ReadData)(NSData * _Nullable data);
+/**发送数据进度  只适用于蓝牙发送数据 Sending data progress ** Only for Bluetooth sending data*/
+typedef void(^WriteProgress)(NSUInteger total,NSUInteger progress);
+typedef void (^Error)(id error);
+
+#endif /* ConnecterBlock_h */
--- a/ios/Classes/ConnecterManager.h
+++ b/ios/Classes/ConnecterManager.h
@ -0,0 +1,93 @@
+//
+//  ConnecterManager.h
+//  GSDK
+//
+
+#import <Foundation/Foundation.h>
+#import "BLEConnecter.h"
+#import "EthernetConnecter.h"
+#import "Connecter.h"
+
+/**
+ *  @enum ConnectMethod
+ *  @discussion 连接方式
+ *  @constant BLUETOOTH 蓝牙连接
+ *  @constant ETHERNET 网口连接（wifi连接）
+ */
+typedef enum : NSUInteger{
+    BLUETOOTH,
+    ETHERNET
+}ConnectMethod;
+
+#define Manager [ConnecterManager sharedInstance]
+
+@interface ConnecterManager : NSObject
+@property(nonatomic,strong)BLEConnecter *bleConnecter;
+@property(nonatomic,strong)Connecter *connecter;
+
+(instancetype)sharedInstance;
+
+/**
+ *  方法说明：关闭连接
+ */
+-(void)close;
+
+/**
+ *  方法说明: 向输出流中写入数据（只适用于蓝牙） // Method description: write data to the output stream (only for Bluetooth)
+ *  @param data 需要写入的数据
+ *  @param progress 写入数据进度
+ *  @param callBack 读取输入流中的数据
+ */
+-(void)write:(NSData *_Nullable)data progress:(void(^_Nullable)(NSUInteger total,NSUInteger progress))progress receCallBack:(void (^_Nullable)(NSData *_Nullable))callBack;
+
+/**
+ *  方法说明：向输出流中写入数据 // Method description: writing data to the output stream
+ *  @param callBack 读取数据接口
+ */
+-(void)write:(NSData *)data receCallBack:(void (^)(NSData *))callBack;
+
+/**
+ *  方法说明：向输出流中写入数据 // Method description: writing data to the output stream
+ *  @param data 需要写入的数据
+ */
+-(void)write:(NSData *)data;
+
+/**
+ *  方法说明：停止扫描
+ */
+-(void)stopScan;
+
+/**
+ *  方法说明：更新蓝牙状态
+ *  @param state 蓝牙状态
+ */
+-(void)didUpdateState:(void(^)(NSInteger state))state;
+
+/**
+ *  方法说明：连接外设
+ *  @param peripheral 需连接的外设
+ *  @param options 其它可选操作
+ *  @param timeout 连接时间
+ *  @param connectState 连接状态
+ */
+-(void)connectPeripheral:(CBPeripheral *)peripheral options:(nullable NSDictionary<NSString *,id> *)options timeout:(NSUInteger)timeout connectBlack:(void(^_Nullable)(ConnectState state)) connectState;
+
+/**
+ *  方法说明：连接外设
+ *  @param peripheral 需连接的外设
+ *  @param options 其它可选操作
+ */
+-(void)connectPeripheral:(CBPeripheral * _Nullable)peripheral options:(nullable NSDictionary<NSString *,id> *)options;
+
+/**
+ *  方法说明：扫描外设
+ *  @param serviceUUIDs 需要发现外设的UUID，设置为nil则发现周围所有外设
+ *  @param options  其它可选操作
+ *  @param discover 发现的设备
+ */
+-(void)scanForPeripheralsWithServices:(nullable NSArray<CBUUID *> *)serviceUUIDs options:(nullable NSDictionary<NSString *, id> *)options discover:(void(^_Nullable)(CBPeripheral *_Nullable peripheral,NSDictionary<NSString *, id> *_Nullable advertisementData,NSNumber *_Nullable RSSI))discover;
+
+
+
+
+@end
--- a/ios/Classes/ConnecterManager.m
+++ b/ios/Classes/ConnecterManager.m
@ -0,0 +1,108 @@
+//
+//  ConnecterManager.m
+//  GSDK
+//
+//
+
+#import "ConnecterManager.h"
+
+@interface ConnecterManager(){
+    ConnectMethod currentConnMethod;
+}
+@end
+
+@implementation ConnecterManager
+
+static ConnecterManager *manager;
+static dispatch_once_t once;
+
+(instancetype)sharedInstance {
+    dispatch_once(&once, ^{
+        manager = [[ConnecterManager alloc]init];
+    });
+    return manager;
+}
+
+/**
+ *  方法说明：扫描外设
+ *  @param serviceUUIDs 需要发现外设的UUID，设置为nil则发现周围所有外设
+ *  @param options  其它可选操作
+ *  @param discover 发现的设备
+ */
+-(void)scanForPeripheralsWithServices:(nullable NSArray<CBUUID *> *)serviceUUIDs options:(nullable NSDictionary<NSString *, id> *)options discover:(void(^_Nullable)(CBPeripheral *_Nullable peripheral,NSDictionary<NSString *, id> *_Nullable advertisementData,NSNumber *_Nullable RSSI))discover{
+    [_bleConnecter scanForPeripheralsWithServices:serviceUUIDs options:options discover:discover];
+}
+
+/**
+ *  方法说明：更新蓝牙状态
+ *  @param state 蓝牙状态
+ */
+-(void)didUpdateState:(void(^)(NSInteger state))state {
+    if (_bleConnecter == nil) {
+        currentConnMethod = BLUETOOTH;
+        [self initConnecter:currentConnMethod];
+    }
+    [_bleConnecter didUpdateState:state];
+}
+
+-(void)initConnecter:(ConnectMethod)connectMethod {
+    switch (connectMethod) {
+        case BLUETOOTH:
+            _bleConnecter = [BLEConnecter new];
+            _connecter = _bleConnecter;
+            break;
+        default:
+            break;
+    }
+}
+
+/**
+ *  方法说明：停止扫描
+ */
+-(void)stopScan {
+    [_bleConnecter stopScan];
+}
+
+/**
+ *  连接
+ */
+-(void)connectPeripheral:(CBPeripheral *)peripheral options:(nullable NSDictionary<NSString *,id> *)options timeout:(NSUInteger)timeout connectBlack:(void(^_Nullable)(ConnectState state)) connectState{
+    [_bleConnecter connectPeripheral:peripheral options:options timeout:timeout connectBlack:connectState];
+}
+
+-(void)connectPeripheral:(CBPeripheral * _Nullable)peripheral options:(nullable NSDictionary<NSString *,id> *)options {
+    [_bleConnecter connectPeripheral:peripheral options:options];
+}
+
+-(void)write:(NSData *_Nullable)data progress:(void(^_Nullable)(NSUInteger total,NSUInteger progress))progress receCallBack:(void (^_Nullable)(NSData *_Nullable))callBack {
+    [_bleConnecter write:data progress:progress receCallBack:callBack];
+}
+
+-(void)write:(NSData *)data receCallBack:(void (^)(NSData *))callBack {
+#ifdef DEBUG
+    NSLog(@"[ConnecterManager] write:receCallBack:");
+#endif
+    _bleConnecter.writeProgress = nil;
+    [_connecter write:data receCallBack:callBack];
+}
+
+-(void)write:(NSData *)data {
+#ifdef DEBUG
+    NSLog(@"[ConnecterManager] write:");
+#endif
+    _bleConnecter.writeProgress = nil;
+    [_connecter write:data];
+}
+
+-(void)close {
+    if (_connecter) {
+        [_connecter close];
+    }
+    switch (currentConnMethod) {
+        case BLUETOOTH:
+            _bleConnecter = nil;
+            break;
+    }
+}
+
+@end
--- a/ios/Classes/EthernetConnecter.h
+++ b/ios/Classes/EthernetConnecter.h
@ -0,0 +1,27 @@
+//
+//  EthernetConnecter.h
+//  GSDK
+//
+
+#import "Connecter.h"
+
+@interface EthernetConnecter :Connecter
+/**连接设备的ip地址*/
+@property(nonatomic,strong)NSString *ip;
+/**连接设备的端口号*/
+@property(nonatomic,assign)int port;
+
+//+(instancetype)sharedInstance;
+
+/**
+ *  方法说明: 连接设备
+ *  @param ip 连接设备的ip地址
+ *  @param port 连接设备的端口号
+ *  @param connectState 连接状态    @see ConnectState
+ *  @param callback 输入流数据回调
+ */
+-(void)connectIP:(NSString *)ip port:(int)port connectState:(void (^)(ConnectState state))connectState callback:(void(^)(NSData *data))callback;
+
+-(void)connectIP:(NSString *)ip port:(int)port connectState:(void (^)(ConnectState))connectState;
+
+@end
--- a/ios/Classes/FlutterBluetoothBasicPlugin.h
+++ b/ios/Classes/FlutterBluetoothBasicPlugin.h
@ -0,0 +1,13 @@
+#import <Flutter/Flutter.h>
+#import <CoreBluetooth/CoreBluetooth.h>
+#import "ConnecterManager.h"
+
+#define NAMESPACE @"flutter_bluetooth_basic"
+
+@interface FlutterBluetoothBasicPlugin : NSObject<FlutterPlugin, CBCentralManagerDelegate, CBPeripheralDelegate>
+@property(nonatomic,copy)ConnectDeviceState state;
+@end
+
+@interface BluetoothPrintStreamHandler : NSObject<FlutterStreamHandler>
+@property FlutterEventSink sink;
+@end
--- a/ios/Classes/FlutterBluetoothBasicPlugin.m
+++ b/ios/Classes/FlutterBluetoothBasicPlugin.m
@ -0,0 +1,183 @@
+#import "FlutterBluetoothBasicPlugin.h"
+#import "ConnecterManager.h"
+
+@interface FlutterBluetoothBasicPlugin ()
+@property(nonatomic, retain) NSObject<FlutterPluginRegistrar> *registrar;
+@property(nonatomic, retain) FlutterMethodChannel *channel;
+@property(nonatomic, retain) BluetoothPrintStreamHandler *stateStreamHandler;
+@property(nonatomic) NSMutableDictionary *scannedPeripherals;
+@end
+
+@implementation FlutterBluetoothBasicPlugin
+ (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar {
+  FlutterMethodChannel* channel = [FlutterMethodChannel
+      methodChannelWithName:NAMESPACE @"/methods"
+            binaryMessenger:[registrar messenger]];
+  FlutterEventChannel* stateChannel = [FlutterEventChannel eventChannelWithName:NAMESPACE @"/state" binaryMessenger:[registrar messenger]];
+  FlutterBluetoothBasicPlugin* instance = [[FlutterBluetoothBasicPlugin alloc] init];
+
+  instance.channel = channel;
+  instance.scannedPeripherals = [NSMutableDictionary new];
+    
+  // STATE
+  BluetoothPrintStreamHandler* stateStreamHandler = [[BluetoothPrintStreamHandler alloc] init];
+  [stateChannel setStreamHandler:stateStreamHandler];
+  instance.stateStreamHandler = stateStreamHandler;
+
+  [registrar addMethodCallDelegate:instance channel:channel];
+}
+
+- (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result {
+  NSLog(@"call method -> %@", call.method);
+    
+  if ([@"state" isEqualToString:call.method]) {
+    result(nil);
+  } else if([@"isAvailable" isEqualToString:call.method]) {
+    
+    result(@(YES));
+  } else if([@"isConnected" isEqualToString:call.method]) {
+    
+    result(@(NO));
+  } else if([@"isOn" isEqualToString:call.method]) {
+    result(@(YES));
+  }else if([@"startScan" isEqualToString:call.method]) {
+      NSLog(@"getDevices method -> %@", call.method);
+      [self.scannedPeripherals removeAllObjects];
+      
+      if (Manager.bleConnecter == nil) {
+          [Manager didUpdateState:^(NSInteger state) {
+              switch (state) {
+                  case CBCentralManagerStateUnsupported:
+                      NSLog(@"The platform/hardware doesn't support Bluetooth Low Energy.");
+                      break;
+                  case CBCentralManagerStateUnauthorized:
+                      NSLog(@"The app is not authorized to use Bluetooth Low Energy.");
+                      break;
+                  case CBCentralManagerStatePoweredOff:
+                      NSLog(@"Bluetooth is currently powered off.");
+                      break;
+                  case CBCentralManagerStatePoweredOn:
+                      [self startScan];
+                      NSLog(@"Bluetooth power on");
+                      break;
+                  case CBCentralManagerStateUnknown:
+                  default:
+                      break;
+              }
+          }];
+      } else {
+          [self startScan];
+      }
+      
+    result(nil);
+  } else if([@"stopScan" isEqualToString:call.method]) {
+    [Manager stopScan];
+    result(nil);
+  } else if([@"connect" isEqualToString:call.method]) {
+    NSDictionary *device = [call arguments];
+    @try {
+      NSLog(@"connect device begin -> %@", [device objectForKey:@"name"]);
+      CBPeripheral *peripheral = [_scannedPeripherals objectForKey:[device objectForKey:@"address"]];
+        
+      self.state = ^(ConnectState state) {
+        [self updateConnectState:state];
+      };
+      [Manager connectPeripheral:peripheral options:nil timeout:2 connectBlack: self.state];
+      
+      result(nil);
+    } @catch(FlutterError *e) {
+      result(e);
+    }
+  } else if([@"disconnect" isEqualToString:call.method]) {
+    @try {
+      [Manager close];
+      result(nil);
+    } @catch(FlutterError *e) {
+      result(e);
+    }
+  } else if([@"writeData" isEqualToString:call.method]) {
+       @try {
+           NSDictionary *args = [call arguments];
+           
+           NSMutableArray *bytes = [args objectForKey:@"bytes"];
+
+           NSNumber* lenBuf = [args objectForKey:@"length"];
+           int len = [lenBuf intValue];
+           char cArray[len];
+
+           for (int i = 0; i < len; ++i) {
+//               NSLog(@"** ind_%d (d): %@, %d", i, bytes[i], [bytes[i] charValue]);
+               cArray[i] = [bytes[i] charValue];
+           }
+           NSData *data2 = [NSData dataWithBytes:cArray length:sizeof(cArray)];
+//           NSLog(@"bytes in hex: %@", [data2 description]);
+           [Manager write:data2];
+           result(nil);
+       } @catch(FlutterError *e) {
+           result(e);
+       }
+  }
+}
+
+-(void)startScan {
+    [Manager scanForPeripheralsWithServices:nil options:nil discover:^(CBPeripheral * _Nullable peripheral, NSDictionary<NSString *,id> * _Nullable advertisementData, NSNumber * _Nullable RSSI) {
+        if (peripheral.name != nil) {
+            
+            NSLog(@"find device -> %@", peripheral.name);
+            [self.scannedPeripherals setObject:peripheral forKey:[[peripheral identifier] UUIDString]];
+            
+            NSDictionary *device = [NSDictionary dictionaryWithObjectsAndKeys:peripheral.identifier.UUIDString,@"address",peripheral.name,@"name",nil,@"type",nil];
+            [_channel invokeMethod:@"ScanResult" arguments:device];
+        }
+    }];
+    
+}
+
+-(void)updateConnectState:(ConnectState)state {
+    dispatch_async(dispatch_get_main_queue(), ^{
+        NSNumber *ret = @0;
+        switch (state) {
+            case CONNECT_STATE_CONNECTING:
+                NSLog(@"status -> %@", @"Connecting ...");
+                ret = @0;
+                break;
+            case CONNECT_STATE_CONNECTED:
+                NSLog(@"status -> %@", @"Connection success");
+                ret = @1;
+                break;
+            case CONNECT_STATE_FAILT:
+                NSLog(@"status -> %@", @"Connection failed");
+                ret = @0;
+                break;
+            case CONNECT_STATE_DISCONNECT:
+                NSLog(@"status -> %@", @"Disconnected");
+                ret = @0;
+                break;
+            default:
+                NSLog(@"status -> %@", @"Connection timed out");
+                ret = @0;
+                break;
+        }
+        
+         NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:ret,@"id",nil];
+        if(_stateStreamHandler.sink != nil) {
+          self.stateStreamHandler.sink([dict objectForKey:@"id"]);
+        }
+    });
+}
+
+@end
+
+@implementation BluetoothPrintStreamHandler
+
+- (FlutterError*)onListenWithArguments:(id)arguments eventSink:(FlutterEventSink)eventSink {
+  self.sink = eventSink;
+  return nil;
+}
+
+- (FlutterError*)onCancelWithArguments:(id)arguments {
+  self.sink = nil;
+  return nil;
+}
+
+@end
--- a/ios/flutter_bluetooth_basic.podspec
+++ b/ios/flutter_bluetooth_basic.podspec
@ -0,0 +1,28 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html.
+# Run `pod lib lint flutter_bluetooth_basic.podspec' to validate before publishing.
+#
+Pod::Spec.new do |s|
+  s.name             = 'flutter_bluetooth_basic'
+  s.version          = '0.0.1'
+  s.summary          = 'A new flutter plugin project.'
+  s.description      = <<-DESC
+A new flutter plugin project.
+                       DESC
+  s.homepage         = 'http://example.com'
+  s.license          = { :file => '../LICENSE' }
+  s.author           = { 'Your Company' => 'email@example.com' }
+  s.source           = { :path => '.' }
+  s.source_files = 'Classes/**/*'
+  s.public_header_files = 'Classes/**/*.h'
+  s.static_framework = true
+  s.dependency 'Flutter'
+  # s.platform = :ios, '8.0'
+
+  # Import all * .a libraries in the Classes folder
+  s.frameworks = ["SystemConfiguration", "CoreTelephony","WebKit"]
+  s.vendored_libraries = '**/*.a'
+
+  # Flutter.framework does not contain a i386 slice. Only x86_64 simulators are supported.
+  # s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'VALID_ARCHS[sdk=iphonesimulator*]' => 'x86_64' }
+end
--- a/ios/libGSDK.a
+++ b/ios/libGSDK.a
--- a/lib/flutter_bluetooth_basic.dart
+++ b/lib/flutter_bluetooth_basic.dart
@ -0,0 +1,10 @@
+/*
+ * flutter_bluetooth_basic
+ * Created by Andrey U.
+ * 
+ * See LICENSE for distribution and usage details.
+ */
+library flutter_bluetooth_basic;
+
+export './src/bluetooth_manager.dart';
+export './src/bluetooth_device.dart';
--- a/lib/src/bluetooth_device.dart
+++ b/lib/src/bluetooth_device.dart
@ -0,0 +1,17 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'bluetooth_device.g.dart';
+
+@JsonSerializable(includeIfNull: false)
+class BluetoothDevice {
+  BluetoothDevice();
+
+  String? name;
+  String? address;
+  int? type = 0;
+  bool? connected = false;
+
+  factory BluetoothDevice.fromJson(Map<String, dynamic> json) =>
+      _$BluetoothDeviceFromJson(json);
+  Map<String, dynamic> toJson() => _$BluetoothDeviceToJson(this);
+}
--- a/lib/src/bluetooth_device.g.dart
+++ b/lib/src/bluetooth_device.g.dart
@ -0,0 +1,31 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'bluetooth_device.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+BluetoothDevice _$BluetoothDeviceFromJson(Map<String, dynamic> json) {
+  return BluetoothDevice()
+    ..name = json['name'] as String?
+    ..address = json['address'] as String?
+    ..type = json['type'] as int?
+    ..connected = json['connected'] as bool?;
+}
+
+Map<String, dynamic> _$BluetoothDeviceToJson(BluetoothDevice instance) {
+  final val = <String, dynamic>{};
+
+  void writeNotNull(String key, dynamic value) {
+    if (value != null) {
+      val[key] = value;
+    }
+  }
+
+  writeNotNull('name', instance.name);
+  writeNotNull('address', instance.address);
+  writeNotNull('type', instance.type);
+  writeNotNull('connected', instance.connected);
+  return val;
+}
--- a/lib/src/bluetooth_manager.dart
+++ b/lib/src/bluetooth_manager.dart
@ -0,0 +1,143 @@
+import 'dart:async';
+
+import 'package:flutter/services.dart';
+import 'package:rxdart/rxdart.dart';
+
+import 'bluetooth_device.dart';
+
+/// A BluetoothManager.
+class BluetoothManager {
+  static const String NAMESPACE = 'flutter_bluetooth_basic';
+  static const int CONNECTED = 1;
+  static const int DISCONNECTED = 0;
+
+  static const MethodChannel _channel =
+      const MethodChannel('$NAMESPACE/methods');
+  static const EventChannel _stateChannel =
+      const EventChannel('$NAMESPACE/state');
+  Stream<MethodCall> get _methodStream => _methodStreamController.stream;
+  final StreamController<MethodCall> _methodStreamController =
+      StreamController.broadcast();
+
+  BluetoothManager._() {
+    _channel.setMethodCallHandler((MethodCall call) {
+      _methodStreamController.add(call);
+      return Future(() => null);
+    });
+  }
+
+  static BluetoothManager _instance = BluetoothManager._();
+
+  static BluetoothManager get instance => _instance;
+
+  // Future<bool> get isAvailable async =>
+  //     await _channel.invokeMethod('isAvailable').then<bool>((d) => d);
+
+  // Future<bool> get isOn async =>
+  //     await _channel.invokeMethod('isOn').then<bool>((d) => d);
+
+  Future<bool> get isConnected async =>
+      await _channel.invokeMethod('isConnected');
+
+  BehaviorSubject<bool> _isScanning = BehaviorSubject.seeded(false);
+  Stream<bool> get isScanning => _isScanning.stream;
+
+  BehaviorSubject<List<BluetoothDevice>> _scanResults =
+      BehaviorSubject.seeded([]);
+  Stream<List<BluetoothDevice>> get scanResults => _scanResults.stream;
+
+  PublishSubject _stopScanPill = new PublishSubject();
+
+  /// Gets the current state of the Bluetooth module
+  Stream<int?> get state async* {
+    yield await _channel.invokeMethod('state').then((s) => s);
+
+    yield* _stateChannel.receiveBroadcastStream().map((s) => s);
+  }
+
+  /// Starts a scan for Bluetooth Low Energy devices
+  /// Timeout closes the stream after a specified [Duration]
+  Stream<BluetoothDevice> scan({
+    Duration? timeout,
+  }) async* {
+    if (_isScanning.value == true) {
+      throw Exception('Another scan is already in progress.');
+    }
+
+    // Emit to isScanning
+    _isScanning.add(true);
+
+    final killStreams = <Stream>[];
+    killStreams.add(_stopScanPill);
+    if (timeout != null) {
+      killStreams.add(Rx.timer(null, timeout));
+    }
+
+    // Clear scan results list
+    _scanResults.add(<BluetoothDevice>[]);
+
+    try {
+      await _channel.invokeMethod('startScan');
+    } catch (e) {
+      print('Error starting scan.');
+      _stopScanPill.add(null);
+      _isScanning.add(false);
+      throw e;
+    }
+
+    yield* BluetoothManager.instance._methodStream
+        .where((m) => m.method == "ScanResult")
+        .map((m) => m.arguments)
+        .takeUntil(Rx.merge(killStreams))
+        .doOnDone(stopScan)
+        .map((map) {
+      final device = BluetoothDevice.fromJson(Map<String, dynamic>.from(map));
+      final List<BluetoothDevice>? list = _scanResults.value;
+      int newIndex = -1;
+      list!.asMap().forEach((index, e) {
+        if (e.address == device.address) {
+          newIndex = index;
+        }
+      });
+
+      if (newIndex != -1) {
+        list[newIndex] = device;
+      } else {
+        list.add(device);
+      }
+      _scanResults.add(list);
+      return device;
+    });
+  }
+
+  Future startScan({
+    Duration? timeout,
+  }) async {
+    await scan(timeout: timeout).drain();
+    return _scanResults.value;
+  }
+
+  /// Stops a scan for Bluetooth Low Energy devices
+  Future stopScan() async {
+    await _channel.invokeMethod('stopScan');
+    _stopScanPill.add(null);
+    _isScanning.add(false);
+  }
+
+  Future<dynamic> connect(BluetoothDevice device) =>
+      _channel.invokeMethod('connect', device.toJson());
+
+  Future<dynamic> disconnect() => _channel.invokeMethod('disconnect');
+
+  Future<dynamic> destroy() => _channel.invokeMethod('destroy');
+
+  Future<dynamic> writeData(List<int> bytes) {
+    Map<String, Object> args = Map();
+    args['bytes'] = bytes;
+    args['length'] = bytes.length;
+
+    _channel.invokeMethod('writeData', args);
+
+    return Future.value(true);
+  }
+}
--- a/pubspec.yaml
+++ b/pubspec.yaml
@ -0,0 +1,29 @@
+name: flutter_bluetooth_basic
+description: Flutter plugin that allows to find bluetooth devices & send raw bytes data
+version: 0.1.7
+homepage: https://github.com/andrey-ushakov/flutter_bluetooth_basic
+
+environment:
+  sdk: ">=2.12.0 <3.0.0"
+  flutter: ">=1.12.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  json_annotation: ^4.1.0
+  rxdart: ^0.26.0
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  build_runner: ^1.0.0
+  json_serializable: ^3.2.2
+
+flutter:
+  plugin:
+    platforms:
+      android:
+        package: com.tablemi.flutter_bluetooth_basic
+        pluginClass: FlutterBluetoothBasicPlugin
+      ios:
+        pluginClass: FlutterBluetoothBasicPlugin
--- a/test/flutter_bluetooth_basic_test.dart
+++ b/test/flutter_bluetooth_basic_test.dart
@ -0,0 +1,19 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:flutter_bluetooth_basic/flutter_bluetooth_basic.dart';
+
+void main() {
+  const MethodChannel channel = MethodChannel('flutter_bluetooth_basic');
+
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUp(() {
+    channel.setMockMethodCallHandler((MethodCall methodCall) async {
+      return '42';
+    });
+  });
+
+  tearDown(() {
+    channel.setMockMethodCallHandler(null);
+  });
+}
				`@ -0,0 +1 @@`
				`rootProject.name = 'flutter_bluetooth_basic'`