【Android开发VR实战】二.播放360°全景视频

【Android开发VR实战】二.播放360°全景视频

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

<?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开发VR360度全景视频" />

<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>

四.载入360°全景视频

/**
* 载入360度全景视频
*/
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);

/**设置载入设置**/
VrVideoView.Options options = new VrVideoView.Options();
options.inputType = VrVideoView.Options.TYPE_STEREO_OVER_UNDER;
/**
* 设置载入监听
*/
vr_video_view.setEventListener(new VrVideoEventListener() {
/**
* 视频播放完毕回调
*/
@Override
public void onCompletion() {
super.onCompletion();
/**播放完毕后跳转到開始又一次播放**/
vr_video_view.seekTo(0);
setIsPlay(false);
Log.d(TAG, "onCompletion()");
}

/**
* 载入每一帧视频的回调
*/
@Override
public void onNewFrame() {
super.onNewFrame();
seek_bar.setProgress((int) vr_video_view.getCurrentPosition());
Log.d(TAG, "onNewFrame()");
}

/**
* 点击VR视频回调
*/
@Override
public void onClick() {
super.onClick();
Log.d(TAG, "onClick()");
}

/**
* 载入VR视频失败回调
* @param errorMessage
*/
@Override
public void onLoadError(String errorMessage) {
super.onLoadError(errorMessage);
Log.d(TAG, "onLoadError()->errorMessage=" + errorMessage);
}

/**
* 载入VR视频成功回调
*/
@Override
public void onLoadSuccess() {
super.onLoadSuccess();
/**载入成功后设置回调**/
seek_bar.setMax((int) vr_video_view.getDuration());
Log.d(TAG, "onNewFrame()");
}

/**
* 显示模式改变回调
* 1.默认
* 2.全屏模式
* 3.VR观看模式。即横屏分屏模式
* @param newDisplayMode 模式
*/
@Override
public void onDisplayModeChanged(int newDisplayMode) {
super.onDisplayModeChanged(newDisplayMode);
Log.d(TAG, "onLoadError()->newDisplayMode=" + newDisplayMode);
}
});
try {
/**载入VR视频**/
vr_video_view.loadVideoFromAsset("congo.mp4", options);
} catch (IOException e) {
e.printStackTrace();
}
/**设置声音button点击监听**/
volume_toggle.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
setIsMuted(!isMuted);
}
});
/**设置播放暂停button点击监听**/
play_toggle.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
setIsPlay(!isPlay);
}
});

/**设置进度条拖动监听**/
seek_bar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
/**
* 进度条拖动改变监听
* @param seekBar 拖动条
* @param progress 进度
* @param fromUser 是否是用户手动操作的
*/
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (fromUser) {
/**调节视频进度**/
vr_video_view.seekTo(progress);
}
}

@Override
public void onStartTrackingTouch(SeekBar seekBar) {

}

@Override
public void onStopTrackingTouch(SeekBar seekBar) {

}
});

}

/**
* 设置声音开关
*
* @param isMuted 开关
*/
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);
}

/**
* 设置播放暂停
*
* @param isPlay 播放暂停
*/
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();
}
}

五.GitHub