开始使用ExoPlayer的最简单方法是将其添加为gradle依赖项.您需要确保在项目的根目录中的build.gradle文件中包含jcenter存储库：

存储库{

jcenter()

}

接下来,在模块的build.gradle文件中包含以下内容：

编译’com.google.android.exoplayer：exoplayer：r2.2.0′

1.您的布局文件

android:id="@+id/activity_main"

xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:id="@+id/player_view"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:focusable="true"

app:resize_mode="fill"/>

android:id="@+id/progressBar"

style="?android:attr/progressBarStyle"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:visibility="gone"/>

2.你的班级档案(活动)

public class VideoPlayerActivity extends AppCompatActivity implements ExoPlayer.EventListener {

private SimpleExoPlayerView simpleExoPlayerView;

private String hlsVideoUri = "http://playertest.longtailvideo.com/adaptive/bbbfull/bbbfull.m3u8";

private SimpleExoPlayer player;

private ProgressBar progressBar;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_video_player);

// 1. Create a default TrackSelector

Handler mainHandler = new Handler();

BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();

TrackSelection.Factory videoTrackSelectionFactory = new AdaptiveVideoTrackSelection.Factory(bandwidthMeter);

TrackSelector trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);

// 2. Create a default LoadControl

LoadControl loadControl = new DefaultLoadControl();

// 3. Create the player

player = ExoPlayerFactory.newSimpleInstance(this, trackSelector, loadControl);

simpleExoPlayerView = (SimpleExoPlayerView) findViewById(R.id.player_view);

simpleExoPlayerView.setPlayer(player);

// Measures bandwidth during playback. Can be null if not required.

DefaultBandwidthMeter defaultBandwidthMeter = new DefaultBandwidthMeter();

// Produces DataSource instances through which media data is loaded.

DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this,

Util.getUserAgent(this, "Exo2"), defaultBandwidthMeter);

// Produces Extractor instances for parsing the media data.

ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();

// This is the MediaSource representing the media to be played.

HlsMediaSource hlsMediaSource = new HlsMediaSource(Uri.parse(hlsVideoUri), dataSourceFactory, mainHandler, new AdaptiveMediaSourceEventListener() {

@Override

public void onLoadStarted(DataSpec dataSpec, int dataType, int trackType, Format trackFormat, int trackSelectionReason, Object trackSelectionData, long mediaStartTimeMs, long mediaEndTimeMs, long elapsedRealtimeMs) {

}

@Override

public void onLoadCompleted(DataSpec dataSpec, int dataType, int trackType, Format trackFormat, int trackSelectionReason, Object trackSelectionData, long mediaStartTimeMs, long mediaEndTimeMs, long elapsedRealtimeMs, long loadDurationMs, long bytesLoaded) {

}

@Override

public void onLoadCanceled(DataSpec dataSpec, int dataType, int trackType, Format trackFormat, int trackSelectionReason, Object trackSelectionData, long mediaStartTimeMs, long mediaEndTimeMs, long elapsedRealtimeMs, long loadDurationMs, long bytesLoaded) {

}

@Override

public void onLoadError(DataSpec dataSpec, int dataType, int trackType, Format trackFormat, int trackSelectionReason, Object trackSelectionData, long mediaStartTimeMs, long mediaEndTimeMs, long elapsedRealtimeMs, long loadDurationMs, long bytesLoaded, IOException error, boolean wasCanceled) {

}

@Override

public void onUpstreamDiscarded(int trackType, long mediaStartTimeMs, long mediaEndTimeMs) {

}

@Override

public void onDownstreamFormatChanged(int trackType, Format trackFormat, int trackSelectionReason, Object trackSelectionData, long mediaTimeMs) {

}

});

player.addListener(this);

player.prepare(hlsMediaSource);

simpleExoPlayerView.requestFocus();

player.setPlayWhenReady(true);

progressBar = (ProgressBar) findViewById(R.id.progressBar);

}

@Override

public void onTimelineChanged(Timeline timeline, Object manifest) {

}

@Override

public void onTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) {

}

@Override

public void onLoadingChanged(boolean isLoading) {

}

@Override

public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {

switch (playbackState) {

case Player.STATE_BUFFERING:

//You can use progress dialog to show user that video is preparing or buffering so please wait

progressBar.setVisibility(View.VISIBLE);

break;

case Player.STATE_IDLE:

//idle state

break;

case Player.STATE_READY:

// dismiss your dialog here because our video is ready to play now

progressBar.setVisibility(View.GONE);

break;

case Player.STATE_ENDED:

// do your processing after ending of video

break;

}

}

@Override

public void onPlayerError(ExoPlaybackException error) {

AlertDialog.Builder adb = new AlertDialog.Builder(VideoPlayerActivity.this);

adb.setTitle("Could not able to stream video");

adb.setMessage("It seems that something is going wrong.\nPlease try again.");

adb.setPositiveButton("OK", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.dismiss();

finish(); // take out user from this activity. you can skip this

}

});

AlertDialog ad = adb.create();

ad.show();

}

@Override

public void onPositionDiscontinuity() {

}

@Override

protected void onPause() {

super.onPause();

if (player != null) {

player.setPlayWhenReady(false); //to pause a video because now our video player is not in focus

}

}

@Override

protected void onDestroy() {

super.onDestroy();

player.release();

}

}

我认为这对初学者来说已经足够了.另请注意,此库的标准音频和视频组件依赖于Android的MediaCodec API,该API是在Android 4.1(API级别16)中发布的.因此它不适用于Android 4.0及更低版本.

不要忘记将此权限添加到清单文件中：

< uses-permission android：name =“android.permission.INTERNET”/>