Android Exoplayer是一个强大的音视频播放框架。我们可以使用Exoplayer来管理播放列表，它支持多媒体流的自适应和即时切换。

在Exoplayer中，我们可以通过使用ResolvingDataSource来解决动态解析媒体URL的问题。它支持一组DataSource.Factory对象来从URL中动态解析带有重定向或缩短URL的媒体流，并将其传递到ExoPlayer进行播放。

以下是解决方法中的一些示例代码：

//创建ResolvingDataSourceFactory DefaultHttpDataSourceFactory defaultHttpDataSourceFactory = new DefaultHttpDataSourceFactory( Util.getUserAgent(this, "app-name")); ResolvingDataSourceFactory resolvingDataSourceFactory = new ResolvingDataSourceFactory(defaultHttpDataSourceFactory, true, null);

//创建Playlist HlsMediaSource hlsMediaSource1 = new HlsMediaSource.Factory(resolvingDataSourceFactory) .createMediaSource(MediaItem.fromUri("http://example.com:8080/my_playlist.m3u8")); HlsMediaSource hlsMediaSource2 = new HlsMediaSource.Factory(resolvingDataSourceFactory) .createMediaSource(MediaItem.fromUri("http://example.com:8080/another_playlist.m3u8")); HlsMediaSource hlsMediaSource3 = new HlsMediaSource.Factory(resolvingDataSourceFactory) .createMediaSource(MediaItem.fromUri("http://example.com:8080/third_playlist.m3u8"));

//创建ConcatenatingMediaSource，它可以合并多个MediaSource成为一个播放列表 ConcatenatingMediaSource concatenatingMediaSource = new ConcatenatingMediaSource(hlsMediaSource1, hlsMediaSource2, hlsMediaSource3);

//将合并的媒体源传递给ExoPlayer SimpleExoPlayer exoPlayer = new SimpleExoPlayer.Builder(this) .setMediaSource(concatenatingMediaSource) .build();

//开始播放 exoPlayer.prepare(); exoPlayer.setPlayWhenReady(true);