Its very easy. First install the latest version of java which you can get by downloading from http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html. Then you just need Android Studio from http://developer.android.com/sdk/index.html then follow the instructions on the page on how to configure.
If you want a quick code which I can email just email me on email@example.com
the app is here to test https://www.dropbox.com/s/j1adm6t9u81on5y/QaSite.apk?dl=0
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April 20, 2021: Q2A 1.8.6 released!