Good slides

Listing the lists

This is really good slides :

(general idea)http://www.slideshare.net/nehiljain/lecture-slides-for-list-views-android

(with good example)http://www.slideshare.net/peterbuck/getting-fancy-with-lists

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Creating bar code using ZXing

http://stackoverflow.com/questions/7027635/zxing-at-android-eclipse

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About model view controller

http://www.slideshare.net/peterbuck/-4032806