android开发USB通讯，发送数据，接收数据

USB通讯，首先获取 

vendor-id="4292" product-id="60000"

 根据vid和pid判断连接设备

判断是否插入USB设备

private boolean enumSensor() {
    UsbManager usbManager = (UsbManager) this.getSystemService(Context.USB_SERVICE);
    for (UsbDevice device : usbManager.getDeviceList().values()) {
        int device_vid = device.getVendorId();
        int device_pid = device.getProductId();
        if (device_vid == VID && device_pid == PID) {
            return true;
        }
    }
    return false;
}

连接对应设备

public void initUSBPermission(int vid, int pid){
    UsbManager usbManager = (UsbManager)mContext.getSystemService(Context.USB_SERVICE);
    UsbDevice usbDevice = null;
    for (UsbDevice device : usbManager.getDeviceList().values()) {
        int device_vid = device.getVendorId();
        int device_pid = device.getProductId();
        if (device_vid == vid && device_pid == pid)
        {
            usbDevice = device;
            break;
        }
    }
    if (null == usbDevice)
    {
        zknirusbManagerListener.onCheckPermission(-1);
        return;
    }
    this.vid = vid;
    this.pid = pid;
    if (!usbManager.hasPermission(usbDevice))
    {
        Intent intent = new Intent(this.ACTION_USB_PERMISSION);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0);
        usbManager.requestPermission(usbDevice, pendingIntent);
    }
    else {
        zknirusbManagerListener.onCheckPermission(0);
    }
}

USB刷卡器

 

 demo：https://download.youkuaiyun.com/download/meixi_android/90121600