Exoplayer库对我来说似乎很复杂.谁能帮助我如何使用Android上新发布的exoplayer 2库来流式传输电台网址？我正在尝试从服务器流式传输mp3文件,并希望将播放器放在IntentService中以保持音频文件在后台播放.提前致谢.
解决方法:
这是ExoPlayer for mp3的简单演示
compile 'com.google.android.exoplayer:exoplayer:r2.4.2'
然后
public class MainActivity extends AppCompatActivity implements ExoPlayer.EventListener{
private BandwidthMeter bandwidthMeter;
private TrackSelector trackSelector;
private TrackSelection.Factory trackSelectionFactory;
private SimpleExoPlayer player;
private DataSource.Factory dataSourceFactory;
private ExtractorsFactory extractorsFactory;
private DefaultBandwidthMeter defaultBandwidthMeter;
private MediaSource mediaSource;
private String songUrl = "http://www.mfiles.co.uk/mp3-downloads/edvard-grieg-peer-gynt1-morning-mood-piano.mp3";
private Button stopButton;
private Button startButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startButton = (Button) findViewById(R.id.btnStart);
stopButton = (Button) findViewById(R.id.btnStop);
bandwidthMeter = new DefaultBandwidthMeter();
extractorsFactory = new DefaultExtractorsFactory();
trackSelectionFactory = new AdaptiveTrackSelection.Factory(bandwidthMeter);
trackSelector = new DefaultTrackSelector(trackSelectionFactory);
defaultBandwidthMeter = new DefaultBandwidthMeter();
dataSourceFactory = new DefaultDataSourceFactory(this,
Util.getUserAgent(this, "mediaPlayerSample"),defaultBandwidthMeter);
mediaSource = new ExtractorMediaSource(Uri.parse(songUrl),
dataSourceFactory,
extractorsFactory,
null,
null);
player = ExoPlayerFactory.newSimpleInstance(this,trackSelector);
player.addListener(this);
player.prepare(mediaSource);
Log.v("TEST","playing state : " + player.getPlaybackState());
startButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
player.setPlayWhenReady(true);
}
});
stopButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
player.setPlayWhenReady(false);
}
});
}
@Override
protected void onDestroy() {
super.onDestroy();
player.setPlayWhenReady(false);
}
@Override
public void onl oadingChanged(boolean isLoading) {
Log.i("TEST", "onLoadingChanged: " + isLoading + "");
Log.i("TEST", "Buffered Position: " + player.getBufferedPosition() + "");
Log.i("TEST", "Buffered Percentage: " + player.getBufferedPercentage() + "");
}
@Override
public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {
if(playbackState == ExoPlayer.STATE_READY){
Log.i("TEST", "ExoPlayer State is: READY");
} else if (playbackState == ExoPlayer.STATE_BUFFERING){
Log.i("TEST", "ExoPlayer State is: BUFFERING");
} else if (playbackState == ExoPlayer.STATE_ENDED){
Log.i("TEST", "ExoPlayer State is: ENDED");
} else if (playbackState == ExoPlayer.STATE_IDLE){
Log.i("TEST", "ExoPlayer State is: IDLE");
}
}
@Override
public void onTimelineChanged(Timeline timeline, Object manifest) {
}
@Override
public void onTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) {
}
@Override
public void onPlayerError(ExoPlaybackException error) {
}
@Override
public void onPositionDiscontinuity() {
}
@Override
public void onPlaybackParametersChanged(PlaybackParameters playbackParameters) {
}
}
标签：android,exoplayer 来源： https://codeday.me/bug/20190527/1165741.html
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