reader

hi...I was following this example B4X: Private jo As JavaObject Manager= GetContext.RunMethod("getSystemService", Array("usb")) mReader=jo.InitializeNewInstance ("com.acs.smartcard.Reader",Array As Object (Manager)) umanager.Initialize Dim usbdevices() As UsbDevice usbdevices =...

Hi! So I've been away for a awhile and I'm not really up-to-date with all the new stuff. ? Anyway, I'm looking for the fastest, most reliable QR Code READER library. I used the search function and found a few, I just want to know which one to choose. I'm looking for 3 main features (1 and 2...