Android天气预报APP设计与实现：利用智能手机查询天气信息。

With the rapid development of mobile networks, smartphones have become an essential part of people's lives. The convenience and efficiency of smartphones allow people to enjoy life to the fullest, making it an indispensable tool for individuals planning their trips and considering weather conditions. In order to facilitate access to weather forecast information on smartphones, a weather forecast client application was designed and implemented on the Android platform. The main features include obtaining the latitude and longitude of the user's location, converting it to the corresponding city, retrieving and parsing weather forecast JSON documents, and presenting weather forecast information on the Android platform. Users can search for weather information of cities across the country using a map interface, including temperature, humidity, and other essential details, greatly facilitating travel arrangements and avoiding unnecessary inconveniences. The interface is simple and user-friendly, ensuring high practicality. This project, based on Android application development, was completed by undergraduate students from China University of Mining and Technology in the course "Android Application Development Technology" in 2017. This weather forecast application showcases the seamless integration of technology and user experience, providing a convenient and reliable tool for users to access weather information on the go. Key words: Android; JSON; map; weather forecast.