Android SDK / Eclipse set up and installation

I use Ubuntu because it is easier if you plug-in the phone to your computer and you don't need to install apache ant and ZXing library to your app !

Here is installation steps.

android plugin http://dl-ssl.google.com/android/eclipse


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This was how I did last time :
http://stackoverflow.com/questions/4782543/integration-zxing-library-directly-into-my-android-application

But it is not that helpful since the Eclipse in my window is not recognized my mobile phone.