Are you a photographer or a designer? Do you want to build an Android App for your users / clients? Then this app is for you.
"Flickr Gallery" is a portfolio app for a Photographer or a Designer. All you have to do is to upload your photos into Flickr.com. Then add your Flickr Username into the source code, compile it with Eclipse and submit it to Google Play.
That's it, no extra code is required.