Android Currency Converter

Hi, I am looking for you to make me a currency converter for Android platform.

Also I need it to work with:
minSdkVersion 14
targetSdkVersion 23

I wish to copy and paste the source code into another project I am currently developing, so must be universal code that can be copied and pasted into another project.

Must fetch data from an API (please do not hard code the currency converter number in), it must be fetched when opened to get the latest conversion rates from some API.

I need it urgently in a day or two maximum.

No layout is required, do not design a user interface I can do that myself, just put the simple TextView etc on a plain background to save more time.