- xxi, 367 pages : illustrations ; 24 cm.
- Contents: Part 1. Context. Who's using the app? -- Where and when is the app used? -- What device is the app running on? -- Part 2. Input. How people interact with the app -- User-entered data -- Data not from a user -- Part 3. Output. Displaying items in the app -- Non-visible output -- Part 4. Responsiveness. Understanding the perception of time -- Making your app start fast -- Making your app run fast -- Part 5. Connectivity. Coping with varying network conditions -- Part 6. Resources. Managing power and resources.Includes bibliographical references (pages 350-355) and index.Summary: Just because a mobile app works doesn't mean real people are going to like it. Usability matters! Most mobile developers wind up being part-time designers, and mastering a few core principles of mobile UI can make the difference between app and crap. "Usability matters" is a guide for developers wrestling with the subtle art of mobile design. With each expertly presented example, app developer and designer Matt Lacey provides easy-to-implement techniques that instantly boost your design IQ. Skipping highbrow design theory, he addresses topics like gracefully handling network dropouts and creating intuitive data inputs. Read this book and your apps will look better, your users will be happier, and you might even get some high-fives at the next design review.