Initial steps to get started creating a new sample barcode app from scratch (these were used in creating the sample code):

1)	Create an empty Android Studio project with C++ support.  (Android Studio needs to have CMake and NDK installed via its SDK Tools)
2)	At the root of the project (i.e. ~/Home/AndroidStudioProjects/BarcodeSample), create a folder named “libs”.
3)	Copy the barcode_scanner_library_v2.4.5.0.aar file into the libs folder.
4)	In Android Studio, click File->New->New Module…
5)	Click Import .JAR/.AAR Package and hit next
6)	Hit the browse button for the file name and select the .aar file from the libs folder, and then hit Finish.
7)	In the Project window, right click on “app” and select open module settings.
8)	On the Dependencies tab, click the green “+” (located on the right edge, not the one on the left) and select “Module dependency”.
9)	Select the barcode_scanner_library_v2.4.5.0.
10)	Copy the m3exp.h file into <Project root>/app/src/main/cpp/
11) Ensure the AndroidManifest.xml launchMode is set to singleInstance.