安卓 android原生+h5实现蓝牙打印佳博

权限

    private void checkPermission() {
        for (String permission : permissions) {
            if (PackageManager.PERMISSION_GRANTED != ContextCompat.checkSelfPermission(this, permission)) {
                per.add(permission);
            }
        }
    }

    private void requestPermission() {
        if (per.size() > 0) {
            String[] p = new String[per.size()];
            ActivityCompat.requestPermissions(this, per.toArray(p), REQUEST_CODE);
        }
    }
     public void btnConnect(View view) {
        startActivityForResult(new Intent(MainActivity.this, BluetoothListActivity.class), BLUETOOTH_REQUEST_CODE);
    }
@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == RESULT_OK) {
            //蓝牙连接
            if (requestCode == BLUETOOTH_REQUEST_CODE) {
                closePort();
                //获取蓝牙mac地址
                String macAddress = data.getStringExtra(BluetoothListActivity.EXTRA_DEVICE_ADDRESS);
                //初始化DeviceConnFactoryManager 并设置信息
                new DeviceConnFactoryManager.Build()
                        //设置标识符
                        .setId(id)
                        //设置连接方式
                        .setConnMethod(DeviceConnFactoryManager.CONN_METHOD.BLUETOOTH)
                        //设置连接的蓝牙mac地址
                        .setMacAddress(macAddress)
                        .build();
                //配置完信息，就可以打开端口连接了
                Log.i("TAG", "onActivityResult: 连接蓝牙" + id);
                threadPool = ThreadPool.getInstantiation();
                threadPool.addTask(new Runnable() {
                    @Override
                    public void run() {
                        DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].openPort();
                    }
                });
            }
        }
    }
    
 /**
     * 重新连接回收上次连接的对象，避免内存泄漏
     */
    private void closePort() {
        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;
        }
    }

创建一Receiver
    @Override
    protected void onStart() {
        super.onStart();
        /*
         * 注册接收连接状态的广播
         */
        IntentFilter filter = new IntentFilter();
        filter.addAction(ACTION_QUERY_PRINTER_STATE);
        filter.addAction(DeviceConnFactoryManager.ACTION_CONN_STATE);
        registerReceiver(receiver, filter);
    }

    @Override
    protected void onStop() {
        super.onStop();
        unregisterReceiver(receiver);
    }
  /**
     * 连接状态的广播
     */
    private BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (DeviceConnFactoryManager.ACTION_CONN_STATE.equals(action)) {
                int state = intent.getIntExtra(DeviceConnFactoryManager.STATE, -1);
                int deviceId = intent.getIntExtra(DeviceConnFactoryManager.DEVICE_ID, -1);
                switch (state) {
                    case DeviceConnFactoryManager.CONN_STATE_DISCONNECT:
                        if (id == deviceId) mTvState.setText("未连接");
                        break;
                    case DeviceConnFactoryManager.CONN_STATE_CONNECTING:
                        mTvState.setText("连接中");
                        break;
                    case DeviceConnFactoryManager.CONN_STATE_CONNECTED:
                        mTvState.setText("已连接");
                        Toast.makeText(MainActivity.this, "已连接", Toast.LENGTH_SHORT).show();
                        break;
                    case CONN_STATE_FAILED:
                        mTvState.setText("未连接");
                        Toast.makeText(MainActivity.this, "连接失败！重试或重启打印机试试", Toast.LENGTH_SHORT).show();
                        break;
                }
                /* Usb连接断开、蓝牙连接断开广播 */
            } else if (ACTION_USB_DEVICE_DETACHED.equals(action)) {
                mHandler.obtainMessage(CONN_STATE_DISCONN).sendToTarget();
            }
        }
    };
    @SuppressLint("HandlerLeak")
    private Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case CONN_STATE_DISCONN:
                    if (DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id] != null || !DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].getConnState()) {
                        DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].closePort(id);
                        Toast.makeText(MainActivity.this, "成功断开连接", Toast.LENGTH_SHORT).show();
                    }
                    break;
                case PRINTER_COMMAND_ERROR:
                    Toast.makeText(MainActivity.this, "请选择正确的打印机指令", Toast.LENGTH_SHORT).show();
                    break;
                case CONN_PRINTER:
                    Toast.makeText(MainActivity.this, "请先连接打印机", Toast.LENGTH_SHORT).show();
                    break;
            }
        }
    };
    
   /**
     * 打印标签
     */
    public void btnPrint(View view) {
        printLabel();
    }
    public void printLabel() {
        Log.i("TAG", "准备打印");
        threadPool = ThreadPool.getInstantiation();
        threadPool.addTask(new Runnable() {
            @Override
            public void run() {
                //先判断打印机是否连接
                if (DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id] == null ||
                        !DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].getConnState()) {
                    mHandler.obtainMessage(CONN_PRINTER).sendToTarget();
                    return;
                }
                if (DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].getCurrentPrinterCommand() == PrinterCommand.TSC) {
                    Log.i("TAG", "开始打印");
                    sendLabel();
                } else {
                    mHandler.obtainMessage(PRINTER_COMMAND_ERROR).sendToTarget();
                }
            }
        });
    }
     private void sendLabel() {
        LabelCommand tsc = new LabelCommand();
        tsc.addSize(40, 30); // 设置标签尺寸，按照实际尺寸设置
        tsc.addGap(1); // 设置标签间隙，按照实际尺寸设置，如果为无间隙纸则设置为0
        tsc.addDirection(LabelCommand.DIRECTION.FORWARD, LabelCommand.MIRROR.NORMAL);// 设置打印方向
        tsc.addQueryPrinterStatus(LabelCommand.RESPONSE_MODE.ON);//开启带Response的打印，用于连续打印
        tsc.addReference(0, 0);// 设置原点坐标
        tsc.addTear(EscCommand.ENABLE.ON); // 撕纸模式开启
        tsc.addCls();// 清除打印缓冲区

        // 绘制简体中文
        tsc.addText(30, 30, LabelCommand.FONTTYPE.SIMPLIFIED_CHINESE, LabelCommand.ROTATION.ROTATION_0, LabelCommand.FONTMUL.MUL_1, LabelCommand.FONTMUL.MUL_1,
                "这是标题");
        tsc.addText(200, 30, LabelCommand.FONTTYPE.SIMPLIFIED_CHINESE, LabelCommand.ROTATION.ROTATION_0, LabelCommand.FONTMUL.MUL_1, LabelCommand.FONTMUL.MUL_1,
                "序号：" + "1");

        tsc.addText(30, 90, LabelCommand.FONTTYPE.SIMPLIFIED_CHINESE, LabelCommand.ROTATION.ROTATION_0, LabelCommand.FONTMUL.MUL_1, LabelCommand.FONTMUL.MUL_1,
                "价格：" + "99.00");
        tsc.addText(30, 140, LabelCommand.FONTTYPE.SIMPLIFIED_CHINESE, LabelCommand.ROTATION.ROTATION_0, LabelCommand.FONTMUL.MUL_1, LabelCommand.FONTMUL.MUL_1,
                "数量：" + "99");
        tsc.addText(30, 190, LabelCommand.FONTTYPE.SIMPLIFIED_CHINESE, LabelCommand.ROTATION.ROTATION_0, LabelCommand.FONTMUL.MUL_1, LabelCommand.FONTMUL.MUL_1,
                "日期：" + "2020-02-02");

         绘制图片
//        Bitmap b = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);
//        tsc.addBitmap(20, 50, LabelCommand.BITMAP_MODE.OVERWRITE, b.getWidth(), b);

        //二维码
        tsc.addQRCode(200, 90, LabelCommand.EEC.LEVEL_L, 4, LabelCommand.ROTATION.ROTATION_0, "www.baidu.com");
        tsc.addPrint(1, 1); // 打印标签
        tsc.addSound(2, 100); // 打印标签后 蜂鸣器响

        /* 发送数据 */
        Vector<Byte> data = tsc.getCommand();
        if (DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id] == null) {
            Log.i("TAG", "sendLabel: 打印机为空");
            return;
        }
        DeviceConnFactoryManager.getDeviceConnFactoryManagers()[id].sendDataImmediately(data);
    }
//[ 这是比较详细的，我也是借鉴的](https://github.com/yechaoa/PrinterDemo)