Android TV -5- Building TV Channels_android tv customer channel-优快云博客

本文提供了一步式指南，教你如何利用Android TV输入框架创建电视频道，实现视频或音乐内容的发布，使其与传统电视频道并列显示在节目指南中。了解如何开发电视输入服务、描述频道和节目数据、管理和处理用户交互。

Building TV Channels

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Dependencies and Prerequisites

Android 5.0 (API level 21) or higher

You should also read

android.media.tv

Try It Out

TV Input Service sample app

Watching live TV shows and other continuous, channel-based content is a big part of the TV experience. Users are accustomed to selecting and watching shows on TV by channel browsing. To provide your users a similar experience, use the TV Input Framework to create channels for publishing video or music content so that your media appears alongside traditional TV channels in the programming guide.

Android supports receiving and playback of live video content through the TV Input Framework in Android 5.0 (API level 21). This framework provides a unified method for receiving audio and video channel content from hardware sources, such as HDMI ports and built-in-tuners, and software sources, such as video streamed over the internet.

The framework enables developers to define live TV input sources by implementing a TV input service. This service publishes a list of channels and programs to the TV Provider. The live TV app on a TV device gets the list of available channels and programs from the TV Provider and displays them to a user. When a user selects a specific channel, the live TV app creates a session for the associated TV input service through the TV Input Manager, and tells the TV input service to tune to the requested channel and play the content to a display surface provided by the TV app.

Figure 1. Functional diagram of the TV Input Framework

The TV Input Framework is designed to provide access to a wide variety of live TV input sources and bring them together in a single user interface for users to browse, view, and enjoy content. Building a TV input service for your content can help make it more accessible on TV devices.