Book, tutorials or sources for creating rich/complex interface (android)
<p>Pretty much the title. I'm new in android development. So, I'm interesting about developing rich application, but cannot find a good tutorials. I would be realy appreciated if someone guide me some resources for start. </p>

<p>Maybe there is some open source project where I can find helpful information?</p>

<p>Thank you</p>

<p>UPD1
Is there some guide from start to end where explained how to make an application such a twitter app? Or any other kind of complex and start to end described application?</p>
