Android mortgage caluclator

For this third Critical Thinking Assignment you will create a  mortgage calculator app that allows the user to enter a purchase price,  down payment amount, and an interest rate.

1. Based on these values, the app should calculate the loan amount  (purchase price minus down payment) and display the monthly payment for  10-, 20-, and 30-year loans.
2. Allow the user to select a custom loan duration (in years) by using a  SeekBar and display the monthly payment for that custom loan duration.

Assignment deliverables (all items submitted in one .ZIP file):

1. A screenshot showing the execution of your application.
2. A detailed overview of the steps taken to complete your application.
3. The project folder containing all source code for your application.

We are typically using android studio.

This is somewhat similar http://www.bogotobogo.com/Android/androidAppsMortgageCalculator.php