将旧版ExoPlayerAPI代码迁移到2.16.1版时出现的问题

我有以下使用ExoPlayer2.4.0简单播放视频的API的代码。我试图将其迁移到最新的API版本(2.16.1)，但许多API和我使用的代码不再在那里工作。例如，newSimpleInstance()不再被识别等。

如何将代码更新到最新的API？

以下是我到目前为止使用ExoPlayer2.4.0的代码：

Uri uri = Uri.parse("https://dash.akamaized.net/akamai/bbb_30fps/bbb_30fps.mpd");

// bandwidthmeter is used for getting default bandwidth
BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

// track selector is used to navigate between video using a default seekbar.
TrackSelector trackSelector = new DefaultTrackSelector(new AdaptiveTrackSelection.Factory(bandwidthMeter));
// we are adding our track selector to exoplayer.
exoPlayer = ExoPlayerFactory.newSimpleInstance(this, trackSelector);

// we are creating a variable for datasource factory and setting its user agent as 'exoplayer_view'
DefaultHttpDataSourceFactory dataSourceFactory = new DefaultHttpDataSourceFactory("exoplayer_video");

DashMediaSource dashMediaSource = new DashMediaSource(uri, dataSourceFactory,
        new DefaultDashChunkSource.Factory(dataSourceFactory), null, null);

// inside our exoplayer view we are setting our player
exoPlayerView.setPlayer(exoPlayer);

// we are preparing our exoplayer with media source.
exoPlayer.prepare(dashMediaSource);
Log.i("BW", "BW: " + bandwidthMeter.getBitrateEstimate());
// we are setting our exoplayer when it is ready.
exoPlayer.setPlayWhenReady(true);

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解决方案

参考exoplayer release notes接口中的更改，查找从v2.4.0到最新版本删除的符号。请记住，v2.x.0版本是主要的发行版，并且大多数在API中引入了突破性的变化，因为ExoPlayer没有使用语义版本控制。

例如here您可以发现ExoPlayerFactory已被删除，您应该改用SimpleExoPlayer.Builder。