说明：  在Android上使用ZXing识别条码 越来越多的手机具备自动对焦的拍摄功能，这也意味着这些手机可以具备条码扫描的功能, 手机具备条码扫描的功能，可以优化购物流程，快速存储电子名片等。
(Android using ZXing identify the barcode/QR Code mobile phone more and more shooting with auto focus function, which means that these phones can have a bar code scanning capabilities, cell phones with bar code scanning capabilities, you can optimize the shopping process, quickly store electronic business card (two-dimensional code) and so on.)