The first QR code system was invented by a Japanese company called Dense-Wave in 1994.Īnd today, even a smartphone having a barcode reader app can scan and decode any QR code. QR code or Quick Response code is basically a two-dimensional barcode that decodes contents at a higher speed. But before we get started, let’s first understand the QR code.
In this tutorial, we will learn how to read QR code with Android by using the android QR scanner library and zxing. However, in some smartphones, you may need a QR code scanner for accessing QR codes. And it doesn’t require any specialized hardware like the barcodes.
Unlike barcodes, the QR codes can be scanned accurately with a smartphone by giving the camera permission to scan. Here’s a QR code example that contains URL of Space-O Technologies. Both QR codes in Android and iOS represent a small string like a shortened web URL and/or a contact number. In simple terms, QR codes are images or data matrix that are designed to be read by all machines, just like the barcodes.
You might have also noticed advertisements and/or certain brand products. Import barcodes, QR codes have become universal in the past few years. Open src//AndroidBarcodeQrExample.java file and paste the code below.ĪndroidBarcodeQrExample.java package Creating the source code of the main AndroidBarcodeQrExample Activity Open res/layout/activity_main.xml, go to the respective xml tab and paste the following:ģ. We are going to make a simple layout xml for the AndroidBarcodeQrExample.class, that consists of a AndroidBarcodeQrExample with vertical orientation, that includes two Buttons that implement the onClick listener in order to open the corresponding Activity. Creating the layout of the main AndroidBarcodeQrExample
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