android，Exoplayer实现视频播放器
Posted 寒夜美美
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了android，Exoplayer实现视频播放器相关的知识，希望对你有一定的参考价值。
bundle配置：
implementation ‘com.google.android.exoplayer:exoplayer-core:2.8.1‘
implementation ‘com.google.android.exoplayer:exoplayer-dash:2.8.1‘
implementation ‘com.google.android.exoplayer:exoplayer-ui:2.8.1‘
show Dialogfragment:
Fragment prev = getCurrentActivity().getFragmentManager().findFragmentByTag("VideoDialogFragment");
if(prev!=null){
DialogFragment diaFragment = (DialogFragment)prev;
diaFragment.dismiss();
}
VideoPlayerFragment dialogFragment = new VideoPlayerFragment();
Bundle bundle = new Bundle();
bundle.putSerializable("videoUrl",视频地址);
bundle.putSerializable("videoName",视频名字);
dialogFragment.setArguments(bundle);
dialogFragment.show(getCurrentActivity().getFragmentManager(), "VideoDialogFragment");
DialogFragment:
public class VideoPlayerFragment extends DialogFragment {
private ImageView screenImageView;
private ImageView changeVoiceView;
private TextView textVideoName;
private LinearLayout mainVideoLayout;
private LinearLayout videoLayout;
private Window window;
private Dialog dialog;
private String videoUrl = null;
private String videoName = null;
private boolean isAllScreen = false;
private boolean isOpenSound = true;
private boolean isVideoMode = false;
private int resumeWindow;
private long resumePosition;
private int videoScreenWidth;
private int videoScreenHeight;
private static Handler handler = new Handler();
private SimpleExoPlayerView simpleExoPlayerView;
private BandwidthMeter bandwidthMeter;
private TrackSelection.Factory videoTrackSelectionFactory;
private TrackSelector trackSelector;
private SimpleExoPlayer player;
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initPlayer();
}
private void initPlayer() {
Common.silentSwitch(true);
bandwidthMeter = new DefaultBandwidthMeter();//创建带宽
videoTrackSelectionFactory = new AdaptiveTrackSelection.Factory(bandwidthMeter);//创建轨道工厂
trackSelector = new DefaultTrackSelector(videoTrackSelectionFactory);//创建轨道选择器实例
setStyle(DialogFragment.STYLE_NO_TITLE, R.style.VideoTheme);
if (ScreenUtils.isLandscape()) {
videoScreenWidth = 900;
videoScreenHeight = 620;
} else {
videoScreenWidth = 880;
videoScreenHeight = 1564;
}
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_exo_player, container);
Bundle bundle = getArguments();
if (bundle != null) {
videoUrl = (String) bundle.getSerializable("videoUrl");
videoName = (String) bundle.getSerializable("videoName");
isVideoMode = (Boolean) bundle.getSerializable("isVideoMode");
}
dialog = getDialog();
dialog.setCanceledOnTouchOutside(true);
dialog.setCancelable(true);
window = dialog.getWindow();
window.setBackgroundDrawableResource(android.R.color.transparent);
window.getDecorView().setPadding(0, 0, 0, 0);
//获得窗体的属性
WindowManager.LayoutParams lp = window.getAttributes();
lp.gravity = Gravity.CENTER;
lp.width = videoScreenWidth;
lp.height = videoScreenHeight;
window.setAttributes(lp);
initView(view);
openPlayer(view);
startPlayer();
return view;
}
private void initView(View view) {
simpleExoPlayerView = (SimpleExoPlayerView) view.findViewById(R.id.simpleExoPlayerView);
screenImageView = (ImageView) view.findViewById(R.id.btnAllScreen);
mainVideoLayout = (LinearLayout) view.findViewById(R.id.mainVideoLayout);
videoLayout = (LinearLayout) view.findViewById(R.id.videoLayout);
textVideoName = (TextView) view.findViewById(R.id.videoName);
if (!TextUtils.isEmpty(videoName)) {
textVideoName.setText("当前正在播放：" + videoName);
}
if (isVideoMode) {
screenImageView.setEnabled(false);
} else {
screenImageView.setEnabled(true);
}
changeVoiceView = (ImageView) view.findViewById(R.id.btnChangeVoice);
changeVoiceView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isOpenSound) {
changeVoiceView.setImageResource(R.drawable.mute_btn);
Common.silentSwitch(isOpenSound);
isOpenSound = false;
} else {
changeVoiceView.setImageResource(R.drawable.voice_btn);
Common.silentSwitch(isOpenSound);
isOpenSound = true;
}
}
});
screenImageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isAllScreen) {
window = dialog.getWindow();
//获得窗体的属性
WindowManager.LayoutParams lp = window.getAttributes();
lp.gravity = Gravity.CENTER;
lp.width = videoScreenWidth;
lp.height = videoScreenHeight;
window.setAttributes(lp);
screenImageView.setImageResource(R.drawable.allscreen_btn);
//videoLayout.setLayoutParams(new FrameLayout.LayoutParams(1000, 600));
isAllScreen = false;
} else {
screenImageView.setImageResource(R.drawable.cancelscreen_btn);
window = dialog.getWindow();
//获得窗体的属性
WindowManager.LayoutParams lp = window.getAttributes();
lp.gravity = Gravity.CENTER;
lp.width = ViewGroup.LayoutParams.MATCH_PARENT;
lp.height = ViewGroup.LayoutParams.MATCH_PARENT;
window.setAttributes(lp);
//videoLayout.setLayoutParams(new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,FrameLayout.LayoutParams.MATCH_PARENT));
isAllScreen = true;
}
}
});
}
private void openPlayer(View view) {
//创建播放器
player = ExoPlayerFactory.newSimpleInstance(view.getContext(), trackSelector);
//创建加载数据的工厂
DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(view.getContext(),
Util.getUserAgent(view.getContext(), "com.reactnativedemo"), (TransferListener<? super DataSource>) bandwidthMeter);
//创建解析数据的工厂
ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
//传入Uri、加载数据的工厂、解析数据的工厂，就能创建出MediaSource
String url = videoUrl;
Uri mp4VideoUri = Uri.parse(url);
MediaSource videoSource = new ExtractorMediaSource(mp4VideoUri,
dataSourceFactory, extractorsFactory, null, null);
//循环播放
LoopingMediaSource loopingMediaSource = new LoopingMediaSource(videoSource);
player.prepare(loopingMediaSource);
player.addListener(eventListener);
player.setPlayWhenReady(true);
}
private ExoPlayer.EventListener eventListener = new ExoPlayer.EventListener() {
@Override
public void onTimelineChanged(Timeline timeline, Object o, int i) {
}
@Override
public void onTracksChanged(TrackGroupArray trackGroupArray, TrackSelectionArray trackSelectionArray) {
}
@Override
public void onLoadingChanged(boolean b) {
}
@Override
public void onPlayerStateChanged(boolean b, int i) {
}
@Override
public void onRepeatModeChanged(int i) {
}
@Override
public void onShuffleModeEnabledChanged(boolean b) {
}
@Override
public void onPlayerError(ExoPlaybackException e) {
if (player != null) {
player.stop();
player.release();
player = null;
}
FragmentTransaction ft = getFragmentManager().beginTransaction();
Fragment prev = getFragmentManager().findFragmentByTag("VideoDialogFragment");
if (prev != null) {
ft.remove(prev);
}
}
@Override
public void onPositionDiscontinuity(int i) {
}
@Override
public void onPlaybackParametersChanged(PlaybackParameters playbackParameters) {
}
@Override
public void onSeekProcessed() {
}
};
private void startPlayer() {
simpleExoPlayerView.setPlayer(player);
//player.setPlayWhenReady(true);
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
}
@Override
public void onResume() {
super.onResume();
if (player != null && player.getCurrentPosition() > 0) {
player.setPlayWhenReady(true);
player.seekTo(resumePosition);
}
}
@Override
public void onPause() {
super.onPause();
if (player != null && player.getPlayWhenReady()) {
resumeWindow = player.getCurrentWindowIndex();
resumePosition = Math.max(0, player.getContentPosition());
player.setPlayWhenReady(false);
}
}
@Override
public void onDestroyView() {
super.onDestroyView();
//释放播放器
if (player != null) {
player.stop();
player.release();
player = null;
}
}
@Override
public void onDestroy() {
super.onDestroy();
silentSwitch(false);
}
}
开关静音：
public static void silentSwitch(boolean isOpenVoice) {
try {
AudioManager mAudioManager = (AudioManager) context.getSystemService(Service.AUDIO_SERVICE);
if (mAudioManager != null) {
if (isOpenVoice) {
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 0, AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);
} else {
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 100, AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);
}
}
} catch (Exception e) {
}
}
作者原创，转载请注明原文地址。以上是关于android，Exoplayer实现视频播放器的主要内容，如果未能解决你的问题，请参考以下文章
Android Widevine DASH 实现 + ExoPlayer
Android + exoplayer：本地播放AES加密视频
Android TV 中的 ExoPlayer 以纵向模式而不是横向模式播放视频