Write an Android application

I am looking for an android app to run locally stored files (written in xml but triggered by a html file) on a Tab / Smartphone. a. There should be a start icon on the Android phone b. On clicking this, the app should open up a screen with various icons (with Company logo etc., lets call this a Main screen). c. Each of the icons should be linked to a locally stored .html file which will in turn run a program written by me in xml, js. d. I need the project template with the code so that I can later on include/delete icons on the main screen through Android Studio. This is Basic requirement. I need a quote for this. I am also looking for an advanced app as follows: 1. All of the above Basic requirements 2. But instead of accessing local files, the app should convert them as assets internally so that I can send just one file (the app) to my customers to intall directly on their phones/tabs and view. 3. Here also, I need template so that I can add and delete internal files whenever I want and re-send to customers.