Styles in Android allow you to define the look and feel, for example colors and fonts, of Android components in XML resource files. This way you have to set common style attributes only once in one ...

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" ...

在工业控制、物联网网关、安防监控等场景中，Android 开发板与局域网服务器（或 PC）之间的数据交互对实时性要求极高。在局域网环境下，UDP（User Datagram Protocol）因其低延迟、高效率、无握手开销、首部开销小等特点，成为许多实时通信系统的首选方案。