我想提出一个媒体播放器在Android中。我需要一个code得到的视频长度不使用视频查看。

I am making a Media player in Android. I require a code to get length of video without using a video view.

我看到很多网页的堆栈​​溢出，但曾经页面用来展示如何在视频查看视频的长度，但我没有需要视频查看。

I saw many pages in Stack overflow but ever page used to show how to get length of a video in video view but i require without video view.

感谢您对我的帮助。

推荐答案

您可以使用MediaMetadataRetriever得到这样的信息。这个类是为了使用由用户谁想要得到有关媒体的具体信息，而无需使用的MediaPlayer 。

You could use the MediaMetadataRetriever to get such an information. This class is meant to be used by users who wants to get specific informations about a media without having to use the MediaPlayer.

下面是一个如何使用它的例子：

Here's a sample of how to use it :

MediaMetadataRetriever retriever = new MediaMetadataRetriever();
retriever.setDataSource(your_data_source);
String time = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION);
long timeInmillisec = Long.parseLong( time );
long duration = timeInmillisec / 1000;
long hours = duration / 3600;
long minutes = (duration - hours * 3600) / 60;
long seconds = duration - (hours * 3600 + minutes * 60);