<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:id="@+id/activity_main"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical"
 android:paddingBottom="@dimen/activity_vertical_margin"
 android:paddingLeft="@dimen/activity_horizontal_margin"
 android:paddingRight="@dimen/activity_horizontal_margin"
 android:paddingTop="@dimen/activity_vertical_margin"
 tools:context="cn.bluemobi.dylan.vrdevelopvideo.MainActivity">

 <TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Android開發(fā)VR360度全景視頻" />

 <com.google.vr.sdk.widgets.video.VrVideoView
 android:id="@+id/vr_video_view"
 android:layout_width="match_parent"
 android:layout_height="250dp"></com.google.vr.sdk.widgets.video.VrVideoView>

 <LinearLayout
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:orientation="horizontal">

 <ImageButton
 android:id="@+id/play_toggle"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_weight="1"
 android:background="@android:color/transparent"
 android:paddingStart="0dp"
 android:src="@drawable/pause" />

 <SeekBar
 android:id="@+id/seek_bar"
 style="?android:attr/progressBarStyleHorizontal"
 android:layout_width="0dp"
 android:layout_height="32dp"
 android:layout_weight="8" />

 <ImageButton
 android:id="@+id/volume_toggle"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:layout_weight="1"
 android:background="@android:color/transparent"
 android:paddingStart="0dp"
 android:paddingTop="4dp"
 android:src="@drawable/volume_on" />
 </LinearLayout>
</LinearLayout>

 /**
 * 加載360度全景視頻
 */
 private void load360Video() {
 vr_video_view = (VrVideoView) findViewById(R.id.vr_video_view);
 seek_bar = (SeekBar) findViewById(R.id.seek_bar);
 volume_toggle = (ImageButton) findViewById(R.id.volume_toggle);
 play_toggle = (ImageButton) findViewById(R.id.play_toggle);

 /**設置加載設置**/
 VrVideoView.Options options = new VrVideoView.Options();
 options.inputType = VrVideoView.Options.TYPE_STEREO_OVER_UNDER;
 /**
 * 設置加載監(jiān)聽
 */
 vr_video_view.setEventListener(new VrVideoEventListener() {
 /**
 * 視頻播放完成回調
 */
 @Override
 public void onCompletion() {
 super.onCompletion();
 /**播放完成后跳轉到開始重新播放**/
 vr_video_view.seekTo(0);
 setIsPlay(false);
 Log.d(TAG, "onCompletion()");
 }

 /**
 * 加載每一幀視頻的回調
 */
 @Override
 public void onNewFrame() {
 super.onNewFrame();
 seek_bar.setProgress((int) vr_video_view.getCurrentPosition());
 Log.d(TAG, "onNewFrame()");
 }

 /**
 * 點擊VR視頻回調
 */
 @Override
 public void onClick() {
 super.onClick();
 Log.d(TAG, "onClick()");
 }

 /**
 * 加載VR視頻失敗回調
 * @param errorMessage
 */
 @Override
 public void onLoadError(String errorMessage) {
 super.onLoadError(errorMessage);
 Log.d(TAG, "onLoadError()->errorMessage=" + errorMessage);
 }

 /**
 * 加載VR視頻成功回調
 */
 @Override
 public void onLoadSuccess() {
 super.onLoadSuccess();
 /**加載成功后設置回調**/
 seek_bar.setMax((int) vr_video_view.getDuration());
 Log.d(TAG, "onNewFrame()");
 }

 /**
 * 顯示模式改變回調
 * 1.默認
 * 2.全屏模式
 * 3.VR觀看模式，即橫屏分屏模式
 * @param newDisplayMode 模式
 */
 @Override
 public void onDisplayModeChanged(int newDisplayMode) {
 super.onDisplayModeChanged(newDisplayMode);
 Log.d(TAG, "onLoadError()->newDisplayMode=" + newDisplayMode);
 }
 });
 try {
 /**加載VR視頻**/
 vr_video_view.loadVideoFromAsset("congo.mp4", options);
 } catch (IOException e) {
 e.printStackTrace();
 }
 /**設置聲音按鈕點擊監(jiān)聽**/
 volume_toggle.setOnClickListener(new View.OnClickListener() {
 public void onClick(View v) {
 setIsMuted(!isMuted);
 }
 });
 /**設置播放暫停按鈕點擊監(jiān)聽**/
 play_toggle.setOnClickListener(new View.OnClickListener() {
 public void onClick(View v) {
 setIsPlay(!isPlay);
 }
 });

 /**設置進度條拖動監(jiān)聽**/
 seek_bar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
 /**
 * 進度條拖動改變監(jiān)聽
 * @param seekBar 拖動條
 * @param progress 進度
 * @param fromUser 是否是用戶手動操作的
 */
 @Override
 public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
 if (fromUser) {
 /**調節(jié)視頻進度**/
 vr_video_view.seekTo(progress);
 }
 }

 @Override
 public void onStartTrackingTouch(SeekBar seekBar) {

 }

 @Override
 public void onStopTrackingTouch(SeekBar seekBar) {

 }
 });

 }

 /**
 * 設置聲音開關
 *
 * @param isMuted 開關
 */
 private void setIsMuted(boolean isMuted) {
 this.isMuted = isMuted;
 volume_toggle.setImageResource(isMuted ? R.drawable.volume_off : R.drawable.volume_on);
 vr_video_view.setVolume(isMuted ? 0.0f : 1.0f);
 }

 /**
 * 設置播放暫停
 *
 * @param isPlay 播放暫停
 */
 private void setIsPlay(boolean isPlay) {
 this.isPlay = isPlay;
 play_toggle.setImageResource(isPlay ?R.drawable.pause: R.drawable.play );
 if(isPlay){
 vr_video_view.playVideo();
 }else{
 vr_video_view.pauseVideo();
 }
 }