安卓藍牙打印 SATO佐藤 條碼

 安卓通過藍牙打印條碼業務，根據最新的幫助打印條碼，可以打印二維碼內容。

https://download.csdn.net/download/weijia3624/11975543

package com.example.demo;

import androidx.appcompat.app.AppCompatActivity;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;

import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Set;
import java.util.UUID;

public class MainActivity extends AppCompatActivity implements View.OnClickListener   {
    private Button Button1,Button2;
    private TextView textView1;
    private ListView BlueDevView;
    private static final int REQUEST_ENABLE_BT= 1;
    private String btDevMacAddr = "";
    private BluetoothSocket Socket = null;
    private BluetoothDevice btdev = null;
    private Context context = this;
    public static final byte[] DOUBLE_HEIGHT_WIDTH = {0x1d, 0x21, 0x11};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button1 = (Button) findViewById(R.id.button1);// 取得組件
        Button1.setOnClickListener(this);
        Button2 = (Button) findViewById(R.id.button2);// 取得組件
        Button2.setOnClickListener(this);
        textView1 = (TextView) findViewById(R.id.textView1);
        BlueDevView = (ListView) findViewById(R.id.listView1);
        setStatusInfo("未連接設備 ");
        BlueDevView.setAdapter(null);
        BlueDevView.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position,long id) {
                try
                {
                    @SuppressWarnings("unchecked")
                    HashMap<String,String> map=(HashMap<String,String>)BlueDevView.getItemAtPosition(position);
                    btDevMacAddr=map.get("devMacAddr");
                    Log.d("ligao","btDevMacAddr "+btDevMacAddr);
                    if(btDevMacAddr!=""){
                        BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
                        btdev=mBluetoothAdapter.getRemoteDevice(btDevMacAddr);
                        setStatusInfo("已經連接 "+btDevMacAddr);
                    }

                }
                catch(Exception e)
                {
                    Log.d("ligao","err "+e.getMessage());
                    setStatusInfo("err "+e.getMessage());
                    return;
                }


            }
        });
        setBluetooth();
    }

    private void setStatusInfo(String info)
    {
        textView1.setText(info);
    }

    private void setBluetooth()
    {
        //獲取 BluetoothAdapter,該設備不支持藍牙,getDefaultAdapter()返回 null，
        BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        if (mBluetoothAdapter == null) {
            // Device does not support Bluetooth
        }

        //判斷藍牙是否啓用,若未啓用則請求用戶允許啓用藍牙
        if (!mBluetoothAdapter.isEnabled()) {
            Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            startActivityForResult(intent, REQUEST_ENABLE_BT);
        }

        BlueDevView.setAdapter(null);
        //查詢配對的設備
        try{
            ArrayAdapter<HashMap<String,String>> mArrayAdapter=new ArrayAdapter<HashMap<String,String>>(this,android.R.layout.simple_list_item_1);
            Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
            // If there are paired devices
            if (pairedDevices.size() > 0) {
                // Loop through paired devices
                for (BluetoothDevice device : pairedDevices) {
                    // Add the name and address to an array adapter to show in a ListView
                    String devName=device.getName();
                    if(devName.indexOf("SATO")>-1)
                    {
                        HashMap<String, String> devMap = new HashMap<String, String>();
                        devMap.put("devName", device.getName());
                        devMap.put("devMacAddr", device.getAddress());
                        mArrayAdapter.add(devMap);
                    }

                }
                BlueDevView.setAdapter(mArrayAdapter);
            }
        }
        catch(Exception e)
        {
            Log.d("ligao","setBlueDevView Err "+ e.getMessage());
            setStatusInfo("setBlueDevView Err "+ e.getMessage());
            return ;
        }

    }

    private void printDate()
    {
        try {
            String text="AAAAAA@BBBBB@CCCCC@DDDDD@EEEEE@FFFFF@GGGGGG";
            String[] inarr = text.split("@");
            String drugCode=inarr[0];
            String drugDesc=inarr[1];
            String drugSpec=inarr[2];
            String drugBatNo=inarr[3];
            String drugExpDate=inarr[4];
            String drugBarcode=inarr[5];
            String drugManf=inarr[6];
            drugCode=string2HexString("A數");
            drugDesc=string2HexString("B量：100");
            drugSpec=string2HexString("日期：_ _ _ _ _ _");
            drugBatNo=string2HexString("編號：_ _ _ _ _ _");
            drugExpDate=string2HexString(drugExpDate);
            drugBarcode=string2HexString(drugBarcode);
            drugManf=string2HexString(drugManf);
            int vstar=50; //豎直位置
            int hstar=1; //水平位置
            int h1=hstar+40,h2=hstar+165;
            int vstep=40; //行寬

            byte[] byteText = text.getBytes("GB18030");
            int byteTextLen= byteText.length;
            String dnmmmm= String.format("%04d", byteTextLen);
            String CommandCode="<A>"
                    +"<V>"+(vstar+vstep*1)+"<H>"+h2+"<P>3<L>0101<C9>H"+drugCode
                    +"<V>"+(vstar+vstep*3)+"<H>"+h1+"<P>3<L>0101<C9>H"+drugDesc
                    +"<V>"+(vstar+vstep*5)+"<H>"+h1+"<P>3<L>0101<C9>H"+drugSpec
                    +"<V>"+(vstar+vstep*7)+"<H>"+h1+"<P>3<L>0101<C9>H"+drugBatNo
                    +"<V>"+(vstar+vstep*9)+"<H>"+h2+"<2D30>,L,03,1,0<DN>"+dnmmmm+","+text
                    +"<Q>1"
                    +"<Z>";
            //CommandCode= "<A><H>100<V>100<2D30>,L,09,1,0<DN>0096,"+text+"<Q1<Z";
            Log.d("ligao","CodePrint CommandCode:"+ CommandCode );
            CodePrint(CommandCode);
            return;
        } catch (Exception e) {
        }

    }

    private void printClear()
    {
        CodePrint("<A><*><Z>");
        return;

    }

    private void CodePrint(final String CommandCode)
    {
        Thread thread = new Thread() {
            public void run() {
                try {
                    String PrintCode=CommandCode;
                    Log.d("ligao","CodePrint CommandCode:"+ PrintCode );
                    setSocket();
                    Socket.connect();
                    OutputStream outputStream = Socket.getOutputStream();
                    PrintCode=PrintCode.replace('<','\u001b'); //< 替換成 ESC
                    PrintCode=PrintCode.replace(">", "");
                    Log.d("ligao","CodePrint CommandCode2:"+ PrintCode );

                    byte[] b = PrintCode.getBytes("GB18030"); //GB18030
                    outputStream.write(b);
                    outputStream.flush();
                    Socket.close();
                } catch (Exception e) {
                    Log.d("ligao","CodePrint Err1"+ e.getMessage());
                    setStatusInfo("CodePrint Err1"+ e.getMessage());
                    try {
                        Socket.close();
                    } catch (Exception closeException) {
                        Log.d("ligao","CodePrint Err2"+ closeException.getMessage());
                        setStatusInfo("CodePrint Err2"+ closeException.getMessage());

                    }
                    return;
                }

            }
        };
        thread.start();
    }


    @Override
    public void onClick(View v)
    {
        switch(v.getId())
        {
            case R.id.button1:
            {


                try
                {
                    Log.d("ligao","b1 click 0");
                    printDate();
                    //selectCommand();

                }catch(Exception e)
                {
                    Log.d("ligao","b1 click  eeee "+ e.getMessage());
                    return ;
                }
                break;
            }
            case R.id.button2:
            {
                printClear();
                Log.d("ligao","b2 click 0");
                break;
            }
        }

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    private void setSocket()
    {
        try{
            if(btdev != null)
            {
                Socket = btdev.createRfcommSocketToServiceRecord(UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"));
            }
            else
            {
                Log.d("ligao","setSocket  btdev is null");
            }
        }
        catch(Exception e)
        {
            Log.d("ligao","Socket  Err "+ e.getMessage());
            return ;
        }


    }
    private static String  string2HexString(String strPart) {
        byte[] b;
        StringBuffer result = new StringBuffer();
        String hex;
        try {

            b = strPart.getBytes("GB18030"); //GB18030
            for (int i = 0; i < b.length; i++) {
                hex = Integer.toHexString(b[i] & 0xFF);
                if (hex.length() == 1) {
                    hex = '0' + hex;
                }
                result.append(hex.toUpperCase());
            }
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return result.toString();
        }
        return result.toString();
    }
}