Google VR SDK-cardborad 播放vr视频-Android

package com.google.vr.sdk.samples.simplevideowidget;import com.google.vr.sdk.widgets.video.VrVideoEventListener;import com.google.vr.sdk.widgets.video.VrVideoView;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.AsyncTask;import android.os.Bundle;import android.text.Html;import android.text.method.LinkMovementMethod;import android.util.Log;import android.widget.SeekBar;import android.widget.TextView;import android.widget.Toast;import java.io.IOException;/*** A test activity that renders a 360 video using {@link VrVideoView}.* It loads the video in the assets by default. User can use it to load any video files using the* command:*   adb shell am start -a android.intent.action.VIEW \*     -n com.google.vr.sdk.samples.simplevideowidget/.SimpleVrVideoActivity*     -d file://sdcard/FILENAME.MP4*/public class SimpleVrVideoActivity extends Activity {private static final String TAG = SimpleVrVideoActivity.class.getSimpleName();/*** Preserve the video's state when rotating the phone.*/private static final String STATE_IS_PAUSED = "isPaused";private static final String STATE_PROGRESS_TIME = "progressTime";/*** The video duration doesn't need to be preserved, but it is saved in this example. This allows* the seekBar to be configured during {@link #onRestoreInstanceState(Bundle)} rather than waiting* for the video to be reloaded and analyzed. This avoid UI jank.*/private static final String STATE_VIDEO_DURATION = "videoDuration";/*** Arbitrary constants and variable to track load status. In this example, this variable should* only be accessed on the UI thread. In a real app, this variable would be code that performs* some UI actions when the video is fully loaded.*/public static final int LOAD_VIDEO_STATUS_UNKNOWN = 0;public static final int LOAD_VIDEO_STATUS_SUCCESS = 1;public static final int LOAD_VIDEO_STATUS_ERROR = 2;private int loadVideoStatus = LOAD_VIDEO_STATUS_UNKNOWN;public int getLoadVideoStatus() {return loadVideoStatus;}/** Tracks the file to be loaded across the lifetime of this app. **/private Uri fileUri;private VideoLoaderTask backgroundVideoLoaderTask;/*** The video view and its custom UI elements.*/private VrVideoView videoWidgetView;/*** Seeking UI & progress indicator. The seekBar's progress value represents milliseconds in the* video.*/private SeekBar seekBar;private TextView statusText;/*** By default, the video will start playing as soon as it is loaded. This can be changed by using* {@link VrVideoView#pauseVideo()} after loading the video.*/private boolean isPaused = false;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main_layout);seekBar = (SeekBar) findViewById(R.id.seek_bar);seekBar.setOnSeekBarChangeListener(new SeekBarListener());statusText = (TextView) findViewById(R.id.status_text);// Make the source link clickable.TextView sourceText = (TextView) findViewById(R.id.source);sourceText.setText(Html.fromHtml(getString(R.string.source)));sourceText.setMovementMethod(LinkMovementMethod.getInstance());// Bind input and output objects for the view.videoWidgetView = (VrVideoView) findViewById(R.id.video_view);videoWidgetView.setEventListener(new ActivityEventListener());loadVideoStatus = LOAD_VIDEO_STATUS_UNKNOWN;// Initial launch of the app or an Activity recreation due to rotation.handleIntent(getIntent());}/*** Called when the Activity is already running and it's given a new intent.*/@Overrideprotected void onNewIntent(Intent intent) {Log.i(TAG, this.hashCode() + ".onNewIntent()");// Save the intent. This allows the getIntent() call in onCreate() to use this new Intent during// future invocations.setIntent(intent);// Load the new image.handleIntent(intent);}/*** Load custom videos based on the Intent or load the default video. See the Javadoc for this* class for information on generating a custom intent via adb.*/private void handleIntent(Intent intent) {// Determine if the Intent contains a file to load.if (Intent.ACTION_VIEW.equals(intent.getAction())) {Log.i(TAG, "ACTION_VIEW Intent received");fileUri = intent.getData();if (fileUri == null) {Log.w(TAG, "No data uri specified. Use \"-d /path/filename\".");} else {Log.i(TAG, "Using file " + fileUri.toString());}} else {Log.i(TAG, "Intent is not ACTION_VIEW. Using the default video.");fileUri = null;}// Load the bitmap in a background thread to avoid blocking the UI thread. This operation can// take 100s of milliseconds.if (backgroundVideoLoaderTask != null) {// Cancel any task from a previous intent sent to this activity.backgroundVideoLoaderTask.cancel(true);}backgroundVideoLoaderTask = new VideoLoaderTask();backgroundVideoLoaderTask.execute(fileUri);}@Overridepublic void onSaveInstanceState(Bundle savedInstanceState) {savedInstanceState.putLong(STATE_PROGRESS_TIME, videoWidgetView.getCurrentPosition());savedInstanceState.putLong(STATE_VIDEO_DURATION, videoWidgetView.getDuration());savedInstanceState.putBoolean(STATE_IS_PAUSED, isPaused);super.onSaveInstanceState(savedInstanceState);}@Overridepublic void onRestoreInstanceState(Bundle savedInstanceState) {super.onRestoreInstanceState(savedInstanceState);long progressTime = savedInstanceState.getLong(STATE_PROGRESS_TIME);videoWidgetView.seekTo(progressTime);seekBar.setMax((int) savedInstanceState.getLong(STATE_VIDEO_DURATION));seekBar.setProgress((int) progressTime);isPaused = savedInstanceState.getBoolean(STATE_IS_PAUSED);if (isPaused) {videoWidgetView.pauseVideo();}}@Overrideprotected void onPause() {super.onPause();// Prevent the view from rendering continuously when in the background.videoWidgetView.pauseRendering();// If the video is playing when onPause() is called, the default behavior will be to pause// the video and keep it paused when onResume() is called.isPaused = true;}@Overrideprotected void onResume() {super.onResume();// Resume the 3D rendering.videoWidgetView.resumeRendering();// Update the text to account for the paused video in onPause().updateStatusText();}@Overrideprotected void onDestroy() {// Destroy the widget and free memory.videoWidgetView.shutdown();super.onDestroy();}private void togglePause() {if (isPaused) {videoWidgetView.playVideo();} else {videoWidgetView.pauseVideo();}isPaused = !isPaused;updateStatusText();}private void updateStatusText() {StringBuilder status = new StringBuilder();status.append(isPaused ? "Paused: " : "Playing: ");status.append(String.format("%.2f", videoWidgetView.getCurrentPosition() / 1000f));status.append(" / ");status.append(videoWidgetView.getDuration() / 1000f);status.append(" seconds.");statusText.setText(status.toString());}/*** When the user manipulates the seek bar, update the video position.*/private class SeekBarListener implements SeekBar.OnSeekBarChangeListener {@Overridepublic void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {if (fromUser) {videoWidgetView.seekTo(progress);updateStatusText();} // else this was from the ActivityEventHandler.onNewFrame()'s seekBar.setProgress update.}@Overridepublic void onStartTrackingTouch(SeekBar seekBar) { }@Overridepublic void onStopTrackingTouch(SeekBar seekBar) { }}/*** Listen to the important events from widget.*/private class ActivityEventListener extends VrVideoEventListener  {/*** Called by video widget on the UI thread when it's done loading the video.*/@Overridepublic void onLoadSuccess() {Log.i(TAG, "Sucessfully loaded video " + videoWidgetView.getDuration());loadVideoStatus = LOAD_VIDEO_STATUS_SUCCESS;seekBar.setMax((int) videoWidgetView.getDuration());updateStatusText();}/*** Called by video widget on the UI thread on any asynchronous error.*/@Overridepublic void onLoadError(String errorMessage) {// An error here is normally due to being unable to decode the video format.loadVideoStatus = LOAD_VIDEO_STATUS_ERROR;Toast.makeText(SimpleVrVideoActivity.this, "Error loading video: " + errorMessage, Toast.LENGTH_LONG).show();Log.e(TAG, "Error loading video: " + errorMessage);}@Overridepublic void onClick() {togglePause();}/*** Update the UI every frame.*/@Overridepublic void onNewFrame() {updateStatusText();seekBar.setProgress((int) videoWidgetView.getCurrentPosition());}/*** Make the video play in a loop. This method could also be used to move to the next video in* a playlist.*/@Overridepublic void onCompletion() {videoWidgetView.seekTo(0);}}/*** Helper class to manage threading.*/class VideoLoaderTask extends AsyncTask<Uri, Void, Boolean> {@Overrideprotected Boolean doInBackground(Uri... uri) {try {if (uri == null || uri.length < 1 || uri[0] == null) {videoWidgetView.loadVideoFromAsset("congo.mp4");} else {videoWidgetView.loadVideo(uri[0]);}} catch (IOException e) {// An error here is normally due to being unable to locate the file.loadVideoStatus = LOAD_VIDEO_STATUS_ERROR;// Since this is a background thread, we need to switch to the main thread to show a toast.videoWidgetView.post(new Runnable() {@Overridepublic void run() {Toast.makeText(SimpleVrVideoActivity.this, "Error opening file. ", Toast.LENGTH_LONG).show();}});Log.e(TAG, "Could not open video: " + e);}return true;}}}

<?xml version="1.0" encoding="utf-8"?><ScrollView xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="wrap_content"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:id="@+id/main_layout"android:padding="10dip"android:orientation="vertical" ><TextViewstyle="@style/ContentText"android:textSize="@dimen/title_text_size"android:textStyle="bold"android:textColor="@color/textDark"android:text="@string/title" /><TextViewstyle="@style/ContentText"android:textColor="@color/textLight"android:textSize="@dimen/caption_text_size"android:text="@string/subtitle" /><TextViewstyle="@style/ContentText"android:textColor="@color/textDark"android:textSize="@dimen/paragragh_text_size"android:text="@string/paragraph1" /><com.google.vr.sdk.widgets.video.VrVideoViewandroid:id="@+id/video_view"android:layout_width="match_parent"android:scrollbars="@null"android:layout_height="250dip"/><!-- Seeking UI & progress indicator.--><SeekBarandroid:id="@+id/seek_bar"style="?android:attr/progressBarStyleHorizontal"android:layout_height="32dp"android:layout_width="fill_parent"/><TextViewandroid:id="@+id/status_text"android:text="Loading Video..."android:layout_centerInParent="true"android:layout_height="wrap_content"android:layout_width="fill_parent"android:textSize="@dimen/caption_text_size"android:paddingStart="32dp"android:paddingEnd="32dp"/><TextViewstyle="@style/ContentText"android:textColor="@color/textDark"android:textSize="@dimen/paragragh_text_size"android:text="@string/paragraph2" /><TextViewandroid:id="@+id/source"style="@style/ContentText"android:textColor="@color/textDark"android:textSize="@dimen/paragragh_text_size"/></LinearLayout></ScrollView>

dependencies {compile project(':libraries-audio')compile project(':libraries-common')compile project(':libraries-core')}