javaandroidvirtual-reality
VR Android app not responding
I am building a simple 360 Video Viewer, but it keep crashing.
Below is the code for choices page, where when the user clicks on view video, the 360 Video should open up.
package com.example.jal.jp;
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.Button;
public class Choices extends AppCompatActivity {
public Button first_button;
//public Button second_button;
public void init(){
first_button = (Button)findViewById(R.id.video);
// second_button = (Button)findViewById(R.id.video);
first_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent view = new Intent(Choices.this,VR_Video.class);
startActivity(view);
}
});
/** second_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent view2 = new Intent(Choices.this,VR_Video.class);
startActivity(view2);
}
});*/
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_choices);
init();
}
}
Below is the code for the Video Viewer file.
package com.example.jal.jp;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.Button;
import android.widget.SeekBar;
import com.google.vr.sdk.widgets.video.VrVideoEventListener;
import com.google.vr.sdk.widgets.video.VrVideoView;
import java.io.IOException;
public abstract class VR_Video extends AppCompatActivity implements SeekBar.OnSeekBarChangeListener {
private static final String STATE_PROGRESS = "state_progress";
private static final String STATE_DURATION = "state_duration";
private VrVideoView mVrVideoView;
private SeekBar mSeekBar;
private Button mVolumeButton;
private boolean mIsPaused;
private boolean mIsMuted;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_vr__video);
initViews();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putLong(STATE_PROGRESS, mVrVideoView.getCurrentPosition());
outState.putLong(STATE_DURATION, mVrVideoView.getDuration());
super.onSaveInstanceState(outState);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
long progress = savedInstanceState.getLong(STATE_PROGRESS);
mVrVideoView.seekTo(progress);
mSeekBar.setMax((int) savedInstanceState.getLong(STATE_DURATION));
mSeekBar.setProgress((int) progress);
}
public void onPlayPausePressed() {
}
public void onVolumeToggleClicked() {
mIsMuted = !mIsMuted;
mVrVideoView.setVolume(mIsMuted ? 0.0f : 1.0f);
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if( fromUser ) {
mVrVideoView.seekTo(progress);
}
}
private void initViews() {
mVrVideoView = (VrVideoView) findViewById(R.id.video_view);
mSeekBar = (SeekBar) findViewById(R.id.seek_bar);
mVolumeButton = (Button) findViewById(R.id.btn_volume);
mVrVideoView.setEventListener(new ActivityEventListener());
//try { VrVideoView.Options options = new VrVideoView.Options(); options.inputType = VrVideoView.Options.TYPE_MONO;
// mVrVideoView.loadVideoFromAsset("sea.mp4", options); } catch( IOException e ) { //Handle exception }
mSeekBar.setOnSeekBarChangeListener(this);
mVolumeButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
onVolumeToggleClicked();
}
});
}
class VideoLoaderTask extends AsyncTask<Void, Void, Boolean> {
@Override
protected Boolean doInBackground(Void... voids) {
runOnUiThread(new Runnable() {
@Override
public void run() {
try {
// VrVideoView.Options options = new VrVideoView.Options();
//options.inputType = VrVideoView.Options.TYPE_MONO;
VrVideoView.Options options = new VrVideoView.Options(); options.inputType = VrVideoView.Options.TYPE_MONO;
mVrVideoView.loadVideoFromAsset("sea.mp4", options);
} catch(IOException e) {
//Handle exception
}
//your code here
}
});
return true;
}
}
public void playPause() {
if( mIsPaused ) {
mVrVideoView.playVideo();
} else {
mVrVideoView.pauseVideo();
}
mIsPaused = !mIsPaused;
}
@Override
protected void onPause() {
super.onPause();
mVrVideoView.pauseRendering();
mIsPaused = true;
}
@Override
protected void onResume() {
super.onResume();
mVrVideoView.resumeRendering();
mIsPaused = false;
}
@Override
protected void onDestroy() {
mVrVideoView.shutdown();
super.onDestroy();
}
private class ActivityEventListener extends VrVideoEventListener {
@Override
public void onLoadSuccess() {
super.onLoadSuccess();
mSeekBar.setMax((int) mVrVideoView.getDuration());
mIsPaused = false;
}
@Override
public void onLoadError(String errorMessage) {
super.onLoadError(errorMessage);
}
@Override
public void onClick() {
super.onClick();
playPause();
}
@Override
public void onNewFrame() {
super.onNewFrame();
mSeekBar.setProgress((int) mVrVideoView.getCurrentPosition());
}
@Override
public void onCompletion() {
super.onCompletion();
mVrVideoView.seekTo(0);
}
}
}
Code for Content_choices.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.example.jal.jp.Choices"
tools:showIn="@layout/activity_choices">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Play VR Video"
android:id="@+id/video"
android:layout_marginTop="102dp"
android:layout_alignParentTop="true"
android:layout_alignLeft="@+id/survey"
android:layout_alignStart="@+id/survey"
android:background="#403e97"
android:layout_alignRight="@+id/survey"
android:layout_alignEnd="@+id/survey"
android:textColor="#be3e3e" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Take the Survey"
android:id="@+id/survey"
android:layout_marginTop="105dp"
android:layout_below="@+id/video"
android:layout_centerHorizontal="true"
android:allowUndo="true"
android:background="#2845a6"
android:textColor="#8f2626" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="360 View"
android:id="@+id/view"
android:layout_marginTop="89dp"
android:layout_below="@+id/survey"
android:layout_alignLeft="@+id/video"
android:layout_alignStart="@+id/video"
android:background="#223e80"
android:layout_alignRight="@+id/video"
android:layout_alignEnd="@+id/video"
android:textColor="#bf1b1b" />
</RelativeLayout>
Code for activity_vr_video.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.google.vr.sdk.widgets.video.VrVideoView
android:id="@+id/video_view"
android:layout_width="match_parent"
android:layout_height="250dp"/>
<SeekBar
android:id="@+id/seek_bar"
android:layout_height="32dp"
android:layout_width="match_parent"
style="?android:attr/progressBarStyleHorizontal"/>
<Button
android:id="@+id/btn_volume"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Volume Toggle"/>
</LinearLayout>
Crash Log:
06-27 00:03:17.626 1529-1548/? I/ActivityManager: Displayed com.example.jal.jp/.Choices: +387ms
06-27 00:03:17.716 2776-2789/? E/Surface: getSlotFromBufferLocked: unknown buffer: 0xae9f0230
06-27 00:03:18.259 1609-1609/? D/skia: --- SkImageDecoder::Factory returned null
06-27 00:03:22.295 1529-1541/? I/ActivityManager: START u0 {cmp=com.example.jal.jp/.VR_Video} from uid 10058 on display 0
06-27 00:03:22.349 2776-2776/? D/AndroidRuntime: Shutting down VM
06-27 00:03:22.350 2776-2776/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.jal.jp, PID: 2776
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.jal.jp/com.example.jal.jp.VR_Video}: java.lang.InstantiationException: java.lang.Class<com.example.jal.jp.VR_Video> cannot be instantiated
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2327)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.InstantiationException: java.lang.Class<com.example.jal.jp.VR_Video> cannot be instantiated
at java.lang.Class.newInstance(Native Method)
at android.app.Instrumentation.newActivity(Instrumentation.java:1067)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2317)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
06-27 00:03:22.372 1529-1905/? W/ActivityManager: Force finishing activity com.example.jal.jp/.VR_Video
06-27 00:03:22.384 1529-1905/? W/ActivityManager: Force finishing activity com.example.jal.jp/.Choices
06-27 00:03:22.483 1529-2747/? I/OpenGLRenderer: Initialized EGL, version 1.4
06-27 00:03:22.772 1529-2747/? W/EGL_emulation: eglSurfaceAttrib not implemented
06-27 00:03:22.772 1529-2747/? W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0x9b1d1ba0, error=EGL_SUCCESS
06-27 00:03:22.886 1529-1543/? W/ActivityManager: Activity pause timeout for ActivityRecord{a0649b u0 com.example.jal.jp/.VR_Video t26 f}
06-27 00:03:24.063 1609-1609/? D/skia: --- SkImageDecoder::Factory returned null
06-27 00:03:32.309 1529-1543/? W/ActivityManager: Launch timeout has expired, giving up wake lock!
06-27 00:03:32.390 1529-1543/? W/ActivityManager: Activity destroy timeout for ActivityRecord{3e989dd u0 com.example.jal.jp/.Choices t26 f}
06-27 00:03:42.336 1529-1543/? W/ActivityManager: Activity destroy timeout for ActivityRecord{a0649b u0 com.example.jal.jp/.VR_Video t26 f}
Solution
Your problem is in this line:
Intent view = new Intent(Choices.this,VR_Video.class);
You got the error because you try to start the VR_Video activity, but this is an abstract class. Delete the abstract keyword in your VR_Video class and it will be working.
And implement your interface methods:
@Override
public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
- Keep numbers which appear in both columns, in J lang
- Differentiation in J
- How to reshape an array with an arbitrary size in one dimension?
- Why is Insert (fold) right associative
- Write 4 : 'x&{.&.;: y' tacitly
- Alignment issue when printing formatted prime numbers in J language
- How can I define a verb in J that applies a different verb alternately to each atom in a list?
- How to get user input in the J programming language
- How to unbox a list of boxed lists of differing lengths in J?
- How can I fix 'noun result was required' error in J?
- In j, how can I define a verb locally in one scope and pass it to a defined adverb?
- Convert boxed array to normal array?
- Read column of CSV file as array
- Replace atom in array of strings
- What does the dyad `=` do to boxed strings?
- Index of minimum element using J
- How can I take the outer product of string vectors in J?
- Building an array of verbs in J
- Reading in multidigit command line parameter
- Amend with bond to new data shows unexpected behaviour
- How to turn a table or matrix into a (flat) list in J
- How to run dissect in J?
- How to define selection using index function in J
- How to exit the J console?
- Find 4-neighbors using J
- Writing custom verbs in J
- How do I negate a selector in J lang?
- How to use arbitrary selector in interchange in J lang?
- different result once square root is added inside tacit
- Sum of arrays with repeated indices