Most of the applications displayed by Google are well-known, such as Pocket, Pinterest, and New York. These 11 applications also include: Pattrn, Timer, Eye in Sky Weather, Grand St., Press, Expedia, Flipboard, and TED. The demonstration of these applications not only aims to show off the Android platform but also focuses on design. It also provides guidance and reference for other developers.
For this reason, Google also summarized the successful experience of these applications in design: "The details will make an application really attractive, including quick and clear page transition, simple and meaningful page layout and layout, plus touch design that will surprise you a little throughout."
If you are interested, you may wish to go to the app store to see Google's Aesthetic philosophy. application developers can learn about the guiding ideology of Android app design. I hope the Android system will be more beautiful.