"基于安卓系统开发的移动天气预报应用系统：实时获取，便捷查询，方便出行"。

The development of mobile weather forecast system based on Android system has greatly improved people's quality of life and economic situation. With the rapid development of transportation tools, people's travel has become more frequent than before. Today, daily work and leisure travel are inseparable from weather forecasts. Therefore, this paper develops a mobile weather forecast application system based on the Android development platform. This system mainly uses Android Studio software for development and maintenance, with Java as the scripting language and Litepal database as the backend database. The system mainly works by allowing users to query the weather forecast for a specific city, where the backend will automatically retrieve real-time information such as time, temperature, weather conditions, air quality, and the next seven days' temperature and lifestyle suggestions from a specified website in the form of JSON data. The data is then parsed using the GSON method and displayed on the application system through XML layout. In addition, the system also implements automatic background refresh and manual update functions, allowing users to quickly access the latest weather information, greatly facilitating users' travel and schedule arrangements, and avoiding unnecessary troubles caused by severe weather. Keywords: mobile weather forecast application system, Android Studio, Litepal.