Making a Video (and Photo) Thumbnail Gallery using Three20 Framework

There is a huge number of tutorials on how to use three20 to create photo gallery but only very few on how to create photo gallery with thumbnails (they usually focus on creating galleries that start with scrollable photos.) And none at all on creating a video gallery. Therefore, I present this tutorial, which explains the method of creating a video gallery in detail. Starting from compiling three20 into a project, going through making a thumbnail gallery of photos and finally making a thumbnail gallery containing videos.

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