Android开发VR实战之播放360度全景视频

VR即Virtual Reality虚拟现实。虚拟现实技术是一种可以创建和体验虚拟世界的计算机仿真系统它利用计算机生成一种模拟环境是一种多源信息融合的交互式的三维动态视景和实体行为的系统仿真使用户沉浸到该环境中。
那么，如何在Android中去开发VR功能的APP呢？我们利用谷歌提供的开源SDK去实现一个360°全景视频的功能

一.在build.gradle中引入谷歌VR的SDK依赖

   compile 'com.google.vr:sdk-videowidget:1.10.0'

二.注意支持的最小SDK

  minSdkVersion 19
  targetSdkVersion 25

三.界面布局文件

四.加载360°全景视频

 
 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);

 
 VrVideoView.Options options = new VrVideoView.Options();
 options.inputType = VrVideoView.Options.TYPE_STEREO_OVER_UNDER;
 
 vr_video_view.setEventListener(new VrVideoEventListener() {
 
 @Override
 public void onCompletion() {
 super.onCompletion();
 
 vr_video_view.seekTo(0);
 setIsPlay(false);
 Log.d(TAG, "onCompletion()");
 }

 
 @Override
 public void onNewframe() {
 super.onNewframe();
 seek_bar.setProgress((int) vr_video_view.getCurrentPosition());
 Log.d(TAG, "onNewframe()");
 }

 
 @Override
 public void onClick() {
 super.onClick();
 Log.d(TAG, "onClick()");
 }

 
 @Override
 public void onLoadError(String errorMessage) {
 super.onLoadError(errorMessage);
 Log.d(TAG, "onLoadError()->errorMessage=" + errorMessage);
 }

 
 @Override
 public void onLoadSuccess() {
 super.onLoadSuccess();
 
 seek_bar.setMax((int) vr_video_view.getDuration());
 Log.d(TAG, "onNewframe()");
 }

 
 @Override
 public void onDisplayModeChanged(int newDisplayMode) {
 super.onDisplayModeChanged(newDisplayMode);
 Log.d(TAG, "onLoadError()->newDisplayMode=" + newDisplayMode);
 }
 });
 try {
 
 vr_video_view.loadVideoFromAsset("congo.mp4", options);
 } catch (IOException e) {
 e.printStackTrace();
 }
 
 volume_toggle.setonClickListener(new View.onClickListener() {
 public void onClick(View v) {
 setIsMuted(!isMuted);
 }
 });
 
 play_toggle.setonClickListener(new View.onClickListener() {
 public void onClick(View v) {
 setIsPlay(!isPlay);
 }
 });

 
 seek_bar.setonSeekBarChangeListener(new SeekBar.onSeekBarChangeListener() {
 
 @Override
 public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
 if (fromUser) {
 
 vr_video_view.seekTo(progress);
 }
 }

 @Override
 public void onStartTrackingTouch(SeekBar seekBar) {

 }

 @Override
 public void onStopTrackingTouch(SeekBar seekBar) {

 }
 });

 }

 
 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);
 }

 
 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();
 }
 }

五.GitHub

https://github.com/linglongxin24/VRDevelopVideo

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。