According to the feedback based on paper prototype, I improve the following aspects in my design:
- I add the Air Quality Index in the long-look notification view. It was pointed out that it would be better to let user have a brief understanding of basic parameters.
- In the main view, a user can allow the app to show multiple cities in a list. Some people liked this capability, while others expressed that they might only care about their current location. I keep this function for people to customize, but highlight the current city with an compass icon.
- Also in the main view, AQIs of different cities have already been color-coded. It was suggested that the city names were not very clear compared to the numbers. So I prioritize the city names by putting them above AQIs and increasing the font size. AQIs remain their colors with a smaller font size.
- There was a lot of text in detail views for specific cities. I add health advice icons as visual aids and reduce the text to facilitate reading.