HOW TO MAKE BARCODE SCANNERFOR ANDROID WITH APP INVENTOR 2(https://www.ai2.appinventor.mit.edu)

Make DESIGNER like thisSetting : Screen1 >>>Label1 >>> name=SuperScan;size =20; w=fillparentButton1 >>> name=Start Scanning;Label2 >>> noneLabel3 >>> noneButton2 >>> name=Open URL;BarcodeScanner1 >>> checkSound1 >>> min.intv = 1;ActivityStarter >>> action=android.intent.action.VIEWDataUri = https://www.facebook.com (FB for example)

Make BLOCKS like this