We Keep Coding

mediaPlayer.release() crashes my app java

I have a project where I added a MediaPlayer in a custom Array Adapter and I make it take the Resource ID of the audio file from the Array List the problem is that I want to release the media player after the audio completes but every time I try to add release in OnCompletion and try to press a view while the media player plays a sound the app crashes .. I searched online and found a code but it gives me an error and I can't find the actual reason for such a crash.
that's the code for the on Click Listener and the Media player:
final MediaPlayer mediaPlayer = MediaPlayer.create(getContext(), currentWord.getVoiceResourceID());
// Wait for user's input by his click on the list's item to play the sound.
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
// Storing the return value of getVoiceResourceID() into mVoice.
// I think this line can be ignored so we call the method inside the creation of the Media Player.
// Creating our media player and put our track on it.
mediaPlayer.selectTrack(currentWord.getVoiceResourceID());
mediaPlayer.start();
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
mediaPlayer.release();
}
});
}
};
I hope I could fix that problem.

VideoView can't play video

i want to play mp4 video (which is playable for android) using videoview but it can't play the video.
my video is in sdcard folder,
can someone help me,
here is my code:
final VideoView vd = new VideoView(AboutActivity.this);
vd.setLayoutParams(new LinearLayout.LayoutParams(android.widget.LinearLayout.LayoutParams.MATCH_PARENT, android.widget.LinearLayout.LayoutParams.MATCH_PARENT)); linevideo.addView(vd);
MediaController mediaController = new MediaController (this);
mediaController.setAnchorView (vd); vd.setMediaController (mediaController);
Uri video = Uri.parse(Environment.getExternalStorageDirectory().getPath() + "/media/vid.mp4");
vd.setVideoURI(video); vd.requestFocus (); vd.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp){
mp.setLooping(true);
vd.start ();
}
});

at first try to change
vd.setVideoURI(video);
to
vd.setVideoPath(video);
and check are you add below permission in manifest:
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

I have seen that when declaring a videoView inside a layout; it sometimes doesn't show because is hidden behind some other component. To solve this you would have to add this line of code:
vd.setZOrderOnTop(true);
On other cases (although I'm not sure why this happens) it has worked for me to set the background of the videoView to transparent.
vd.setBackgroundColor(Color.TRANSPARENT);

You are on right track,
just use mp.start(); inside listener
vd.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp){
mp.setLooping(true);
**mp.start ();**
}
});

How to keep playing video while changing to landscape Mode android (resume video)

I'm playing video using VideoView in portrait mode (not on full screen). When I change to landscape mode, the video not resume (like youtube). Any Suggestion? Here is my code.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Checks the orientation of the screen
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_box_office_detail);
final ProgressDialog ringProgressDialog = ProgressDialog.show(BoxOfficeDetailActivity.this, "Please wait ...", "Video now loading ...", true);
ringProgressDialog.setCancelable(true);
new Thread(new Runnable() {
#Override
public void run() {
try {
Thread.sleep(15000);
} catch (Exception e) {
}
ringProgressDialog.dismiss();
}
}).start();
videoView =(VideoView) findViewById(R.id.tvVideo);
tvTitle = (TextView) findViewById(R.id.tvTitle);
tvSynopsis = (TextView) findViewById(R.id.tvSynopsis);
tvCast = (TextView) findViewById(R.id.tvCast);
BoxOfficeMovie movie = (BoxOfficeMovie) getIntent().getSerializableExtra(BoxOfficeActivity.MOVIE_DETAIL_KEY);
loadMovie(movie);
}
public void loadMovie(BoxOfficeMovie movie) {
videoView.setVideoPath(movie.getVideo());
MediaController mediaController = new
MediaController(this);
mediaController.setAnchorView(videoView);
videoView.setMediaController(mediaController);
videoView.start();
videoView.requestFocus();
tvTitle.setText(movie.getTitle());
tvCast.setText(movie.getCastList() + " views");
tvSynopsis.setText(movie.getSynopsis());
}
}

Avoid activity destruction, by adding this for the activity in the manifest android:configChanges="orientation|uiMode|screenSize"

Well odds are that on Orientation change you will need to destroy your video view and then reinstate it after the orientation change and resume playback from where it was left off at.
A little side note, I have had nothing but problems working with VideoView and MediaPlayer in Android development. Especially getting those 2 things to work correctly across multiple devices. If I were you, I would look into the ExoPlayer library to support video playback. But I guess that depends on how big of a part of your app video playback will be. ExoPlayer takes a significant more amount of time to get setup and working correctly however it still isnt hard and the performance and stability improvement make it work it.

Android Wear Communicate With Phone Hardware

Hi I have this simple code on Android Wear I need a bit of help everything works well if I'm using the phone alone the problem I have is that I taught Android wear will use automatically the Phone hardware for sound and all that good stuff.
Here is my test code
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
#Override
public void onLayoutInflated(WatchViewStub stub) {
imageButtonOne = (ImageButton) findViewById(R.id.imageButtonOne);
textviewOne = (TextView) findViewById(R.id.textviewOne);
imageButtonOne.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
textviewOne.setText("Hello World!");
soundOne() ;
}
});
}
public void soundOne() {
try {
Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Ringtone one = RingtoneManager.getRingtone(getApplicationContext(), notification);
one.play();
} catch (Exception e) {
e.printStackTrace();
}
// MediaPlayer media = MediaPlayer.create(this, R.raw.sound_file_1);
// media.start() ;
// Toolkit.getDefaultToolkit().beep() ;
}
});
It call the sound but because watches doesn't have speakers won't sound. I want the phone to make the sound. Please if someone can help me will be appreciated.

While Android Wear devices will play sound if a bluetooth headset is attached, if you need sound to play on the phone you need to use the Wearable Data Layer and probably more specifically the Message API to send a message to your phone app. Your phone app would implement a WearableListenerService which would be triggered by the incoming message and would play the sound on the phone.
Note: it is much more common for Wear apps to vibrate (via the Vibrator to draw attention rather than play sounds on the phone. Many Wear users use the 'Mute connected phone' option to effectively silence their phone so a sound coming from it may be quite unexpected.

Using Videoview or mediaplayer to play http live streaming video is LAG

First,I built a small app using videoview to play hls video with mp4 format on Samsung galaxt S2.With SD quality, video was smooth.But with HD quality,video was lag. Then, I built a larger app to play hls video using same videoview or mediaplayer android. When i played video, video was lag with SD and HD quality.
In small app, I have a string array to store URLs. My app allows user to choose a URL and push a button to throw a activity to play video using videoview:
Code using videoview in the small app :
VideoView vd = (VideoView)findViewById(R.id.videoView1);
MediaController mc = new MediaController(this);
mc.setAnchorView(vd);
Uri uri = Uri.parse(URL_link);
vd.setMediaController(mc);
vd.setVideoURI(uri);
vd.start();
In larger app, I using listfragment to display all URls. User choose a URLs, then throw a activity to playvideo using videoview. Code in the activity:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_channel_detail);
TextView tv = (TextView) findViewById(R.id.tvVideoPlayer);
Bundle extras = getIntent().getExtras();
if (extras != null) {
channel_id = extras.getInt(ChannelDetailActivity.CHANNEL_ID);
}
tv.setText("Video is playing...");
}
#Override
protected void onStart() {
super.onStart();
getChannelInfo();
}
private void getChannelInfo( ) {
TimeTVApiCaller.getInstance().getChannel(channel_id, this,
new AjaxCallback<ChannelInfo>() {
#Override
public void callback(String url, ChannelInfo object,
AjaxStatus status) {
if (object != null) {
Urlvideo = object.getChannelUrls().get(0).getPath();
getURLfull(Urlvideo);
}
}
});
}
//get a full URL
protected void getURLfull(String url)
{
TimeTVApiCaller.getInstance().getChannelStream(url, this, new AjaxCallback<String>()
{
#Override
public void callback(String url, String object,
AjaxStatus status) {
String Urlfull = object.replace("\"", "");
Urltoken = Urlfull;
//Using the same videoview
VideoView vd = (VideoView) findViewById(R.id.videoView1);
MediaController mc = new MediaController(ChannelDetailActivity.this);
mc.setAnchorView(vd);
Uri uri = Uri.parse(Urltoken);
vd.setMediaController(mc);
vd.setVideoURI(uri);
vd.start();
//vd.requestFocus();
}
});
}
}
I have two questions :
Why videoview or mediaplayer play hls video is lag?
How to custom videoview or mediaplayer to play hls video smoothly?

Each segment in HLS aka HTTP Live Streaming is typically 10 seconds.
The player measures the time it takes to get each segment, if it took too long it will try to pick a bandwidth where it can get a segment or more before it plays it. And the most common error is buffering delays.
You should look in the log file to see what the player is doing when playing content.
If the above is not helpful, this might help.

I assume HD quality is at least 720p and more than 1.5 mbps bit stream with h.264/avc encoding. My best guess is that S2 Hardware doesn't support it.