This is a test based on slymax/webview and Bootstrap 3.3.6
You might want to update
-App name in /app/src/main/res/values/strings.xml
-Icons in /app/src/main/res, you can use romannurik/AndroidAssetStudio/ to generate them easily
-And obviously the Bootstrap template in /app/src/main/res/assets/www
If you want to publish to the Playstore you will also need to change the package name and update gradle