Answer by Zbob750 · Jan 09, 2013 at 07:53 PM
Some of the best documentation on the android platform is available here on the Android Developers website. It will also help if you have prior knowledge of java though it isn't necessary.
For IDEs Google uses a modified version of Eclipse that has all of the tools necessary to develop in one package. It is cross-platform and is commonly used. It is available here. However, If you already have a preferred IDE or wish to do all your development from the command line, you can grab just the basic SDK files from that same link.
To distribute on the Google Play Store (more info here) you'll need a Developer account with Google, which will cost you $25.
From one developer to another, Good Luck.
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