In Studio delete the TextView on the starting activity_main.xml layout.

Here, for the tutorial App, the Application name is set to Scan Barcode and an Empty Activity is used. (This Android tutorial assumes that Android Studio is installed a basic App can be created and run and code can be correctly copied into Studio. pedestrian crosswalk) which sort of look like barcodes. It's published by the Google ZXing team, this link takes you to their Play page. Search for Barcode Scanner on Google Play and install it. For the following example code to work the scanner needs to be installed. This tutorial is an example of how to access the Google Barcode Scanner. Google has a free scanning App that can be accessed from another App, using an Intent. Scanning barcodes and Quick Response (QR) codes is a good example. One of the great features of Android is how easy it is to tap into existing functionality. Here is this website's address as a QR Code. Adding support for barcodes and QR codes in an App opens up new interface, communication and feature possibilities. QR codes are useful for communicating web addresses and contact details. They are particularly good for stock control hence the universal use on packaging and for logistics. Use the ZXing Barcode Scanner in an Android Appīarcodes and Quick Response (QR) codes are useful for storing short sequences of data that can be recognised by a variety of machines and devices.

Barcode scanner android studio tutorial