Reading and writing from files stored in assets folder

• API LEVEL : 1
• Make sure you have an "assets" folder alongside java and res in your project I usually go to file explorer and create it myself and android studio picks it up.
• Put your assets in there.In this example data.csv is used
• Use AssetManager to get an InputStream you use to read from the asset file like this:

             //Access application assets
            AssetManager manager = getAssets();
            //Open our data file
            InputStream in = manager.open("data.csv");

• How do you write? You don't.Assets resources are read only for apps.
• The rest is standard Java reading and parsing.Look at the parse method .