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POLive streaming in video view inside a view pager results in blank screen
 

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  1. POLive streaming in video view inside a view pager results in blank screen
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    <p>I have set of mp4 videos which are streamed into a VideoView. A view pager is used to swipe between the videos.</p> <p>Problem :</p> <p>When swiping the view pager, it shows the first and second page videos perfectly. But, when the swipe reaches the third pages, the device screen goes blank and I can't seem to swipe the pages anymore. </p> <p>Working code:</p> <pre><code>public class VideoActivity extends Activity implements OnClickListener { private ViewPager videoViewPager; private CirclePageIndicator videoViewPagerIndicator; private VideoViewPagerAdapter videoViewPagerAdapter; private VideoView videoView; private Context context; private ArrayList&lt;VideoItem&gt; videoList = new ArrayList&lt;VideoItem&gt;(8); private int pageIndicatorRadius = 5; private ProgressBar progressBar = null; private MediaController mediaController = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); /* Flag to set hide the status bar */ requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON); setContentView(R.layout.activity_main); context = this; /* Get the video item object list */ videoList = getVideoList(); /* Adapter for the view pager */ videoViewPagerAdapter = new videoViewPagerAdapter(); videoViewPager = (ViewPager) findViewById(R.id.video_viewpager); videoViewPager.setCurrentItem(0); videoViewPager.setAdapter(videoViewPagerAdapter); // videoViewPager.setOffscreenPageLimit(3); /* * Page view indicator . Using the external page view indicator library */ videoViewPagerIndicator = (CirclePageIndicator) findViewById(R.id.video_pageindicator); videoViewPagerIndicator.setViewPager(videoViewPager); videoViewPagerIndicator.setFillColor(getResources().getColor( R.color.translucent_blue)); videoViewPagerIndicator.setRadius(pageIndicatorRadius); } private class videoViewPagerAdapter extends PagerAdapter { /* Method which returns the number of page viewers */ @Override public int getCount() { return videoList.size(); } @Override public boolean isViewFromObject(View view, Object object) { return (view == object); } @Override public Object instantiateItem(ViewGroup collection, int position) { View view = null; LayoutInflater inflater = (LayoutInflater) collection.getContext() .getSystemService(Context.LAYOUT_INFLATER_SERVICE); // Inflater the xml layout which should be added to the page viewer view = inflater.inflate(R.layout.video, null); // Create an object of Video Item from the video list VideoItem videoItemObject = videoList.get(position); /* Initialize video player */ videoView = (VideoView) view .findViewById(R.id.video_view); progressBar = (ProgressBar) view .findViewById(R.id.video_progressbar); Uri video = Uri.parse(videoItemObject.getUrl()); mediaController = new MediaController(context); mediaController.setAnchorView(videoView); videoView.setMediaController(mediaController); videoView.setVideoURI(video); videoView.setKeepScreenOn(true); videoView.requestFocus(); videoView.setOnErrorListener(new OnErrorListener() { @Override public boolean onError(MediaPlayer mp, int what, int extra) { Toast.makeText(context, "Error occured", Toast.LENGTH_SHORT) .show(); return false; } }); videoView.setOnPreparedListener(new OnPreparedListener() { public void onPrepared(MediaPlayer arg0) { progressBar.setVisibility(View.GONE); videoView.start(); } }); videoView .setOnCompletionListener(new OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { videoView.stopPlayback(); } }); videoView.setSoundEffectsEnabled(true); ((ViewPager) collection).addView(view, 0); return view; } @Override public void destroyItem(ViewGroup collection, int position, Object view) { /** Stop playing the video on activity destroyed */ try { videoView.stopPlayback(); } catch (Exception e) { Log.i("Error :", "Closing video"); } ((ViewPager) collection).removeView((View) view); } } @Override protected void onDestroy() { try { videoView.stopPlayback(); } catch (Exception e) { Log.i("Error :", "Closing application"); } super.onDestroy(); } @Override protected void onPause() { try { videoView.pause(); } catch (Exception e) { Log.i("Error :", "Closing application"); } super.onPause(); } /* Function to create a video item object */ public VideoItem createVideoItem(String title, String url) { VideoItem videoItem = new VideoItem(); videoItem.setTitle(title); videoItem.setUrl(url); return videoItem; } /* Function that returns a list of video item objects */ public ArrayList&lt;VideoItem&gt; getvideoList() { ArrayList&lt;VideoItem&gt; video = new ArrayList&lt;VideoItem&gt;(8); video.add(createVideoItem("A", "http://10.0.1.15:8081/media/big_buck.mp4")); video.add(createVideoItem("B", "http://10.0.1.15:8081/media/big_buck_bunny.mp4")); video.add(createVideoItem("C", "http://10.0.1.15:8081/media/big_buck.mp4")); video.add(createVideoItem("D", "http://10.0.1.15:8081/media/big_buck_bunny.mp4")); video.add(createVideoItem("E", "http://10.0.1.15:8081/media/big_buck_bunny.mp4")); video.add(createVideoItem("F", "http://10.0.1.15:8081/media/big_buck_bunny.mp4")); video.add(createVideoItem("G", "http://10.0.1.15:8081/media/big_buck_bunny.mp4")); video.add(createVideoItem("H", "http://10.0.1.15:8081/media/big_buck_bunny.mp4")); return video; } } </code></pre> <p>Logcat:</p> <pre><code> 04-05 12:45:27.139: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:45:27.826: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:30.873: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:30.873: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:32.787: I/MediaPlayer(10963): path is null 04-05 12:45:32.787: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:45:32.826: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:32.826: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:33.444: D/MediaPlayer(10963): getMetadata 04-05 12:45:33.444: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:33.490: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:33.584: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:34.514: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:45:36.662: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:36.662: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:39.248: I/MediaPlayer(10963): path is null 04-05 12:45:39.248: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:45:39.295: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:39.303: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:39.944: D/MediaPlayer(10963): getMetadata 04-05 12:45:39.951: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:39.959: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:40.139: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:42.701: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:45:42.709: E/libEGL(10963): call to OpenGL ES API with no current context (logged once per thread) 04-05 12:45:42.709: W/HardwareRenderer(10963): EGL error: EGL_BAD_SURFACE 04-05 12:45:42.733: W/HardwareRenderer(10963): Mountain View, we've had a problem here. Switching back to software rendering. 04-05 12:45:44.701: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:44.701: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:45.444: D/dalvikvm(10963): GC_CONCURRENT freed 318K, 12% free 7922K/8967K, paused 3ms+6ms, total 53ms 04-05 12:45:45.740: I/MediaPlayer(10963): path is null 04-05 12:45:45.740: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:45:45.834: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:45.834: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:46.420: D/MediaPlayer(10963): getMetadata 04-05 12:45:46.428: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:46.436: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:46.592: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:49.006: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:45:49.061: I/MediaPlayer(10963): path is null 04-05 12:45:49.061: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:45:49.162: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:49.162: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:49.772: D/MediaPlayer(10963): getMetadata 04-05 12:45:49.772: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:49.795: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:49.990: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:50.514: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:45:50.592: I/MediaPlayer(10963): path is null 04-05 12:45:50.592: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:45:51.076: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:51.076: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:51.311: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:51.311: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:51.381: D/MediaPlayer(10963): getMetadata 04-05 12:45:51.381: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:51.436: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:51.709: I/MediaPlayer(10963): sendBroadcast android.media.IMediaPlayer.videoexist 04-05 12:45:51.834: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:45:51.912: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:51.912: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:45:59.506: I/MediaPlayer(10963): path is null 04-05 12:45:59.506: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:45:59.561: I/MediaPlayer(10963): path is null 04-05 12:45:59.561: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:45:59.662: D/dalvikvm(10963): GC_CONCURRENT freed 338K, 12% free 8045K/9095K, paused 13ms+9ms, total 77ms 04-05 12:45:59.678: I/MediaPlayer(10963): path is null 04-05 12:45:59.678: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:46:00.311: E/MediaPlayer(10963): stop called in state 4 04-05 12:46:00.311: E/MediaPlayer(10963): error (-38, 0) 04-05 12:46:00.444: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:46:00.451: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:46:00.475: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:46:00.475: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:46:00.483: D/MediaPlayer(10963): getMetadata 04-05 12:46:00.483: D/MediaPlayer(10963): getMetadata 04-05 12:46:00.483: W/MediaPlayer(10963): mediaplayer went away with unhandled events 04-05 12:46:01.467: I/MediaPlayer(10963): path is null 04-05 12:46:01.467: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:46:01.498: I/MediaPlayer(10963): path is null 04-05 12:46:01.498: D/MediaPlayer(10963): Couldn't open file on client side, trying server side 04-05 12:46:01.756: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:46:01.756: E/SpannableStringBuilder(10963): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 04-05 12:46:02.061: E/MediaPlayer(10963): stop called in state 4 04-05 12:46:02.061: E/MediaPlayer(10963): error (-38, 0) 04-05 12:46:02.123: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:46:02.186: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:46:02.201: W/SurfaceView(10963): CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false visibleChanged=true surfaceChanged=true realSizeChanged=false redrawNeeded=false left=false top=false 04-05 12:46:02.389: W/MediaPlayer(10963): mediaplayer went away with unhandled events 04-05 12:46:02.389: D/MediaPlayer(10963): getMetadata </code></pre>
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