说明：  我使用MVVM架构模式、用于网络的Retrofit、用于本地数据存储的Room和用于获取头条新闻的新闻API构建了一个新闻应用程序。该应用程序利用导航组件和导航图在屏幕之间无缝导航。
(I ve built a news app using the MVVM architecture pattern, Retrofit for networking, Room for local data storage, and the News API for fetching top headlines. The app utilizes navigation components and a nav graph for seamless navigation between screens.)