QR code scanner 進行二維掃瞄-QR code scanner for two-dimensional scan

android QR Code二维码扫描仪，自行建立工程后导入源码后测试可用-android QR Code two-dimensional code scanner, to establish their own project after the test available after the import source

条形码扫描器，在不联网的情况下扫描条形码并显示包含的信息-Barcode scanner to scan the bar code and display the information contained in the case of non-networked