视频应用概览
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
典型的视频播放器在运行时始终会显示其控件和视频内容;它无法在后台运行或在没有界面的情况下运行。因此,最好将您的应用构建为包含界面、播放器、媒体会话和媒体控制器的单个 activity:

- 构建视频播放器 Activity
- 如何创建包含媒体会话和媒体控制器的 Activity。
- 媒体会话回调
- 说明媒体会话回调方法如何管理媒体会话以及其他应用组件(如通知和广播接收器等)。
- 兼容的媒体转码
- 设置转码行为,例如,当视频被不支持初始编码格式的应用打开时,是否自动将视频转换为 AVC (H.264)。
如未另行说明,那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可,并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情,请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC):2025-07-26。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-07-26。"],[],[],null,["# Video app overview\n\nA typical video player always displays its controls and video content while it's\nrunning; it can't operate in the background or without a UI. Therefore, it's\nappropriate to build your app as a single activity containing the UI, a player,\na media session, and a media controller:\n\n**[Building a videoplayer activity](/guide/topics/media-apps/video-app/building-a-video-player-activity)**\n: How to create an activity that contains a media session and a media controller.\n\n**[Media session callbacks](/guide/topics/media-apps/video-app/mediasession-callbacks)**\n: Describes how the media session callback methods manage the media session and other app components like notifications and broadcast receivers.\n\n**[Compatible media transcoding](/guide/topics/media-apps/video-app/compatible-media-transcoding)**\n: Set up transcoding behavior, such as whether to automatically convert\n videos to AVC (H.264) when they are opened by an app that doesn't support\n the initial encoding format."]]