CourseSmart uses image files to display true digital equivalents of the textbook pages. As you will learn, this has a big impact on the “eTextbooks for the iPhone” application.
Using the Swipe Gesture to Scroll and Pan the Page
In many places on the iPhone, a swipe gesture is used for next/previous page. But when you view a “resized” image file, swiping “pans” left-to-right or “scrolls” top-to-bottom.
The app automatically zooms the image file to fit the screen width. This improves legibility immensely. That’s why you can’t swipe to get to the next page.
What’s the Best Way to Zoom-in?
People who use mobile Safari for web browsing expect double tap to zoom-in and zoom-out. This works well for html pages, but does not translate easily to image files.
Some photo sharing apps use double tap to zoom-in to a predefined or calculated level. This is hard to get right and is slow on everything except the newest iPhone 3GS.
What would you like to see in CourseSmart’s “eTextbooks for the iPhone” app?
Join the discussion below. Tell your friends to review CourseSmart’s “eTextbooks for the iPhone” on the App Store.