Android 热敏打印机开发(蓝牙)
前言
由于自己工作原因，涉及到热敏打印机开发，因此自己写了一套热敏打印机SDK，目前暂时只支持蓝牙打印
我生成了jar包的形式，方便大家使用。里面代码的实现原理现在暂无时间去讲解，主要以如何使用为主。后面将会开源，现在没时间。大家可以关注我，后期将会更新
SDK
源码地址
链接：https://pan.baidu.com/s/1vUu7AtNsdP9zThbN0R3Uew
提取码：y2jn
注意事项
目前只适配了蓝牙打印机，58型号的，后期会跟上。。。80的也可以打印就是了
已完成功能
扫描蓝牙
打印一行，打印一行两列，打印一行三列，打印图片，打印条形码。。。
未完成功能
打印二维码(目前需要打印的只能通过图片打印方式进行，貌似58是不支持打印二维码的)
效果图
步骤
如何导入jar包我就不说了。权限
package com.thomas.printer.demo;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.IBinder;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import com.thomas.printer.PrinterCommand;
import com.thomas.printer.PrinterService;
import com.thomas.printer.binder.PrinterBinder;
import com.thomas.printer.bluetooth.BluetoothScanCallback;
import com.thomas.printer.callback.IConnectCallback;
import com.thomas.printer.callback.ProcessData;
import com.thomas.printer.callback.TaskCallback;
import com.thomas.printer.factory.PrinterManufacturers;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class MainActivity extends AppCompatActivity {
private ListView unpaired_list;
private ProgressBar progress_bar;
private List> mapList = new ArrayList<>();
private SimpleAdapter simpleAdapter;
private PrinterBinder binder;
private ServiceConnection connection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
binder = (PrinterBinder) service;
}
@Override
public void onServiceDisconnected(ComponentName name) {
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
unpaired_list = findViewById(R.id.unpaired_list);
progress_bar = findViewById(R.id.progress_bar);
Toolbar toolbar = findViewById(R.id.toolbar);
toolbar.setOnMenuItemClickListener(onMenuItemClick);
initService();
initView();
}
private void initView() {
simpleAdapter = new SimpleAdapter(this,
mapList,
R.layout.item_paired_device,
new String[]{"deviceName","deviceAddress","deviceType","deviceBondState","printerState"},
new int[]{R.id.item_paired_name,R.id.item_paired_address,R.id.item_paired_type,R.id.item_paired_state,R.id.item_printer_state});
unpaired_list.setAdapter(simpleAdapter);
unpaired_list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView adapterView, View view, int position, long id) {
if (mapList.size() > 0){
connectDevice(position);
}
}
});
}
private void initService() {
Intent intent = new Intent(this, PrinterService.class);
bindService(intent,connection,BIND_AUTO_CREATE);
}
@Override
protected void onDestroy() {
super.onDestroy();
unbindService(connection);
}
private Toolbar.OnMenuItemClickListener onMenuItemClick = new Toolbar.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_print:
printMenu();
break;
case R.id.menu_refresh:
refreshDevice();
break;
}
return false;
}
};
private void printMenu() {
binder.writeSendBluetoothData(new TaskCallback() {
@Override
public void onSucceed() {
}
@Override
public void onFailed() {
}
}, new ProcessData() {
@Override
public List processDataBeforeSend(PrinterCommand printer) {
List list = new ArrayList<>();
printer.setPrinterManufacturers(PrinterManufacturers.XPrinter);
try {
list.add(printer.initPrint());
// 黑白反显
list.add(printer.setWhiteOnBlack());
list.add(printer.normalText("我的店铺\n",3,1,true));
list.add(printer.cancelWhiteOnBlack());
list.add(printer.normalText("我的店铺\n",3,1,true));
list.add(printer.normalText("----------------\n",3,1,true));
list.add(printer.printThreeColumn("name" , "count" , "money",1));
for (int i = 0; i< 4; i++){
list.add(printer.printThreeColumn("iphone6_" + i, "X" + i, "4999.00",1));
}
for (int i = 0; i< 3; i++){
list.add(printer.printThreeColumn("iphoneXRXRXRXR_" + i, "X" + i, "4999.00",1));
}
list.add(printer.normalText("----------------\n",3,1,true));
list.add(printer.printTwoColumn("总价","11111",1));
list.add(printer.printTwoColumn("总数","8",1));
list.add(printer.printBarCode("{B123",1,3,80));
Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.mipmap.icon_connect);
list.add(printer.printBitmap(bmp));
list.add(printer.normalText("------end------\n",3,1,true));
list.add(printer.printAndFeedLine());
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
});
}
private void refreshDevice() {
try {
binder.onScanBluetoothDevice(new BluetoothScanCallback() {
@Override
public void onScanning() {
// 扫描中
progress_bar.setVisibility(View.VISIBLE);
}
@Override
public void onScanFinish() {
// 扫描结束
progress_bar.setVisibility(View.GONE);
}
@Override
public void onScanning(BluetoothDevice bluetoothDevice) {
// 扫到的蓝牙设备
boolean contain = false;
for (Map map : mapList){
if (map.get("deviceAddress").equals(bluetoothDevice.getAddress())){
contain = true;
}
}
if (!contain){
Map map = new HashMap<>();
map.put("deviceName",bluetoothDevice.getName());
map.put("deviceAddress",bluetoothDevice.getAddress());
map.put("deviceType", acquireDeviceType(bluetoothDevice.getType()));
map.put("deviceBondState",acquireBondState(bluetoothDevice.getBondState()));
map.put("printerState","未连接");
mapList.add(map);
simpleAdapter.notifyDataSetChanged();
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
private void connectDevice(final int position) {
String address = mapList.get(position).get("deviceAddress").toString();
binder.onConnectBluetoothDevice(address, new IConnectCallback() {
@Override
public void onConnecting() {
}
@Override
public void onConnectResult(boolean success) {
// 设备连接是否成功
mapList.get(position).put("printerState","连接状态"+success);
simpleAdapter.notifyDataSetChanged();
}
@Override
public void onLostConnect(BluetoothSocket bluetoothSocket) {
// 中间发生断开
mapList.get(position).put("printerState","连接状态false");
simpleAdapter.notifyDataSetChanged();
}
@Override
public void onConnectStatus(BluetoothSocket bluetoothSocket, String status) {
// 连接状态
}
});
}
public String acquireDeviceType(int type) {
String deviceType;
switch (type){
case BluetoothDevice.DEVICE_TYPE_CLASSIC:
deviceType = getString(R.string.classic_bluetooth);
break;
case BluetoothDevice.DEVICE_TYPE_LE:
deviceType = getString(R.string.low_power_bluetooth);
break;
case BluetoothDevice.DEVICE_TYPE_DUAL:
default:
deviceType = getString(R.string.dual_bluetooth);
break;
}
return deviceType;
}
/**
* @param bondState device bond state
* @return state
*/
public String acquireBondState(int bondState) {
String state;
switch (bondState){
case BluetoothDevice.BOND_BONDING:
state = getString(R.string.bonding);
break;
case BluetoothDevice.BOND_BONDED:
state = getString(R.string.bonded);
break;
case BluetoothDevice.BOND_NONE:
default:
state = getString(R.string.unpaired);
break;
}
return state;
}
}