In this lesson, we will go through a very simple set up for viewer and block to test the barcode scanner component in app inventor. we want to scan a code after we click the button, and the scan. App inventor blocks : the webviewstring property helps to simplify the example and we can pass parameters to the html file stored as asset inside of the app, which was not possible before. the tools extension offers the method pathtoassets which always returns the correct path to the assets.. That is because the scanner compontent in the app inventor need install a scanner app first. i recommend zxing barcode scanner,you can install by your app store,it is a free software. enjoy your app inventor!.
App inventor tutorial 11 – qr code reader. this is an app which will demonstrate the use of the phone’s built in camera as an input device for a qr code scanner.. App inventor sample project: barcode scanner up until now, i've created all android apps in eclipse with java and xml code. while i will continue to do that, google has released a very promising new web tool called app inventor .. Hello codi! scan the sample app to your phone. scan the following barcode onto your phone to install and run the sample app. or download the apk. download source code. if you'd like to work with this sample in app inventor, download the source code to your computer, then open app inventor,.