gnetwvs / picscip

Fork of the Xcode PhotoScroller sample app, like the native iPhone photo viewer. Click the demo video link below.

PicSciP

This app is a fork of the sample Xcode project PhotoScroller:

"'PhotoScroller' demonstrates the use of embedded UIScrollViews and CATiledLayer to create a rich user experience for displaying and paginating photos that can be individually panned and zoomed. CATiledLayer is used to increase the performance of paging, panning, and zooming with high-resolution images or large sets of photos."

Screenshot & Demo Video

To see a demo video, click the screenshot (right). =>

Changes

• I added a Welcome UIAlertView that shows app usage instructions upon initial app launch.

• I removed the ImageData.plist file since I wanted all of my images to be the same size, 1024x1536 px, and have the same naming pattern page_i.

• I added two very useful & time-saving Photoshop scripts: One for resizing & tiling/slicing/cropping images, and one for creating all icon versions from the iTunesArtwork, 512x512-px image.

• I made some other small changes, like style changes, changing the tiledLayer.levelsOfDetail from 4 to 2, moving the photos to their own directory called Photos, and perhaps other small changes. I recommend doing a diff -r to compare PicSciP with PhotoScroller.

Autorotation-Padding Bug

After rotating the device from portrait to landscape and back again, the padding is displayed on screen, but it shouldn't be. Setting PADDING to 1 to ameliorate this issue causes the page navigation to break after rotating the device from portrait to landscape and back again. Setting PADDING to 2 is the working compromise I chose. I wrote Apple about this. Please send me a pull request if you fix this issue. Thanks!

Contributors

• Matt Di Pasquale

Photo Credits

Each of the three photos in this app was:

• downloaded, on November 24, 2010, from Flickr & licensed under the Attribution 2.0 Generic Creative Commons license.
• provided by julien haler (titlap) on Flickr.
• cropped and/or resized from its original.

The photos are listed below in the same order they appear in the app. The app icon is a derivative of the first photo.

1. "FeuArtificeLevallois-37."
2. "Solidays2009_-21."
3. "Oeuvre d'art à Central Park."