Fascinated, simplified, and pleasantly--android behind the design of the emotions

In the Android Web site, the site not only describes the specific elements of the application design, it even sets out the basic principles of Android application design. These principles, totaling 17, fall into three broad categories: fascination, simplicity, surprise (enchant,simplify and amaze). And what are the considerations behind these principles?

　　two-bit designer I/O in this year at the conference, they described the psychological factors that were under the Android design principles. The Co.Design website reports.

Based on a large number of user studies, two designers collaborated to develop design principles. And they say the Android team is making it an important reference factor in UX design. The design team referred to the psychologist Barbara L. Fredrickson: "If people want to fight a negative emotion, then need three positive emotions."

And based on the psychologist's reference, when the design team to consider the problem, it will be based on design principles, so as to determine the pros and cons of a solution. And they use two jars as a metaphor, if one jar has positive emotions, and the other can put negative emotions. A good plan can fill the jar of positive emotions and let the jar of negative emotions become empty.

For example, when designing the Android Master screen, how to let users know that they have reached the last screen? The design team can choose to do nothing. This will destroy two design principles, resulting in two negative emotions. (One rule: I always know where I am, and the other one is: it's not my fault.) Another option is to pop a line of text on the screen, tells the user that the last screen has been reached, but it still violates the "This is not my fault" principle, because the pop-up notification is like telling the user to do something wrong, in addition, it violates another principle "only important to disturb me".

The final solution for the design team is that when the user reaches the last screen, the screen tilts sideways and changes color if it continues to flip. With such animations, the user realizes that they have reached the last screen. This follows four design principles and adds four positive emotions, including surprises in a special way, sporadic encouragement, use of pictures rather than words, and tricks that can be used for it.

It is conceivable that, in the specific design process, the design team can not rigidly apply the principle. However, with this example, we can learn about the Android design team's focus on user sentiment. Today, mobile products have been deep into our lives, the product of small design details, often affect our mood. For designers, the pursuit of detail is not only a matter of beauty, but also a quality of responsibility to the user.