In MainActivity.java a function called HandleClick processes the pressed button (using the button id to determine which mode to call the scanner). The two TextViews will display the type of barcode scanned and the data it contains. Add another Large Text and set the layout:width and layout:height to fill_parent and the id to tvResult: Add a Large Text below the buttons setting the background property to black, the textColor property to white and the id to tvStatus. Set their ids to butQR, butProd and butOther.

Drop three Button widgets on to the screen and set their text to QR CODE, PRODUCT and OTHER. 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. Import 7.app.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.

Step 3 − Add the following code to src/MainActivity.java import

Step 2 − Add the following code to res/layout/activity_main.xml. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project This example demonstrates about how do I start new Activity on click button in Android.

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