I am confused about the assets folder. It doesn\'t come auto-created in Android Studio, and almost all the forums in which this is discussed talk about Eclipse.
File > New > folder > assets Folder
right click on app folder->new->folder->Assets folder->set Target Source set->click on finish button
Select the app folder and then:
File > New > folder > assets Folder ,
the default location is inside /main folder
Looking inside the .iml file of your project you will see the following line:
<option name="ASSETS_FOLDER_RELATIVE_PATH" value="/src/main/assets" />
This means the "assets" folder is already declared for Gradle. You will need to create it under src/main/ (I'm using Android Studio 0.4.2).
Put the assets folder in the main/src/assets path.
In Android Studio, click on the app folder, then the src folder, and then the main folder. Inside the main folder you can add the assets folder.