(This article will work with you to build an air quality automatic release system client from scratch. This article is for students who have zero basic knowledge and have only seen a little Android tutorial. For more basic content, it is also marked with red links. Come out, you can click to view the detailed introduction.
In fact, it was all because of my father. The air quality in Hebei is so bad that he decides whether to go or not according to the air quality every day. Visiting this website is always too complicated, so I have to be a customer. Idea. Information acquisition, network data asynchronous acquisition, data analysis, interface design and program logic are introduced in the following steps. The following describes how to make a complete program.)
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