Develop Reference

Adding controls like pause and play to media player

I have been able to play audio from my firebase storage and i want the song to stop and start when a user clicks on same button but i haven't been able to get get the right code for that.
this is what i have tried
MediaPlayer mediaPlayer = new MediaPlayer();
try {
mediaPlayer.setDataSource(url);
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mediaPlayer) {
if (!mediaPlayer.isPlaying()) {
mediaPlayer.start();
}else {
mediaPlayer.stop();
}
}
});
mediaPlayer.prepare();
} catch (IOException e) {
e.printStackTrace();
}

The above code is correct, now do one thing create button listener and write below code
button.setOnClickListener(view.onCLickListeners(){
#override
public void onClick(){
if (!mediaPlayer.isPlaying()) {
mediaPlayer.play();
}
else {
mediaPlayer.pause();
}
}});
And please define mediaplayer globally.

arraylist to play with playback

I am getting list of mp3 files(as a ArrayList(Path)) from local by choosing one by one but I could not able to make them to play one by one play if finished move to next and if finished all list loop again. any help?

I solved issue thansk to : http://www.helloandroid.com/tutorials/musicdroid-audio-player-part-i
ofcourse I did a little bit modification, like:
private void playSong() {
try {
mp.reset();
mp.setDataSource(playlist.get(currentPosition));
mp.prepare();
mp.start();
// Setup listener so next song starts automatically
mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
public void onCompletion(MediaPlayer arg0) {
nextSong();
}
});
} catch (IOException e) {
Log.v(getString(R.string.app_name), e.getMessage());
}
}
private void nextSong() {
if (++currentPosition >= playlist.size()) {
// Last song, just reset currentPosition
currentPosition = 0;
} else {
// Play next song
playSong(/*MEDIA_PATH + playlist.get(currentPosition)*/);
}
}

How can I know if the MediaPlayer is in Stopped state?

I am building an app which plays several videos, and I have two different user scenarios :
Scenario 1. While video 'A' is playing, if user clicks next button, then it stops and play the next video 'B'.
Scenario 2. Play video 'A', and if it's done, user clicks next button and it plays video 'B'.
For the first scenario, I used mediaPlayer.isPlaying() method to detect if it is in Started state and it works fine. However, if I use the same code for the second scenario, isPlaying() throws IllegalStateException.
Here's my code for playing videos :
private void playVideos(SurfaceHolder holder) {
try {
mediaPlayer = new MediaPlayer();
mediaPlayer.setDisplay(holder);
Uri uri = Uri.parse("android.resource://" + getPackageName() + "/" + video_files[mCounter]);
mediaPlayer.setDataSource(this, uri);
mediaPlayer.prepare();
mediaPlayer.start();
mediaPlayer.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
if (mCounter <= 8) {
onVideoCompletion(mediaPlayer);
} else {
mediaPlayer.stop();
mediaPlayer.release();
}
}
});
} catch (IOException e) {
} catch (IllegalArgumentException e) {
} catch (IllegalStateException e) {
}
}
Also, here's my button listener to play next video :
nextBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(mediaPlayer != null) {
if(mediaPlayer.isPlaying()) {
mediaPlayer.stop();
mediaPlayer.release();
}
}
mCounter += 1;
if (mCounter <= 8) {
playVideos(holder);
}
}
});
One way that I tried to hack this issue was using a boolean variable instead of isPlaying() method. For example,
boolean mIsPlaying = false;
...
// in button listener
if(mIsPlaying) {
mediaPlayer.stop();
mediaPlayer.release();
}
...
// in playVideos() function
mediaPlayer.start();
mIsPlaying = true;
mediaPlayer.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
if (mCounter <= 8) {
onVideoCompletion(mediaPlayer);
} else {
mediaPlayer.stop();
mediaPlayer.release();
}
}
});
That works for my both of scenario, but I'm not sure if it's the correct way to do it. Isn't there any way to detect whether mediaPlayer is in Stopped state?

I took a look at Google's Documentation which you can find here. You can only know if the player isPlaying(); or isLooping(); ... So no, there is not an "easy" or "short" way to achieve what you want. Hope it helped.

Trigger an event when mediaPlayer stops

I am making an app that uses sound effects. I would like to know how i can detect when a sound has finished playing and trigger an event .
i tried this :
player = new MediaPlayer();
if (player != null) {
player.reset();
player.release();
}
player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mediaPlayer) {
sonar.setBackgroundResource(R.drawable.sonar_off);
stopPlay();
}
});
if(state==1){
player = MediaPlayer.create(this, R.raw.sonar_slow);
}else if(state==2){
player = MediaPlayer.create(this, R.raw.sonar_medium);
}else if(state==3){
player = MediaPlayer.create(this, R.raw.sonar_fast);
}
try{
player.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
player.start();

You can set an OnCompleteListener() to the player object. The code for it is:
mPlayer.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp)
{
"your code comes here"
}
});
Here the mPlayer is the object of the MediaPlayer which is currently running.

There are multiple ways to play sounds, assuming you use the MediaPlayer class you could register a MediaPlayer.OnCompletionListener

android Mediaplayer not playing too fast

I have a MediaPlayer object through which i am playing a sound on click of a button.the sound file is 1-2 second long only.When i am clicking the corresponding button one after another(quickly), it's not playing the sound twice(it is playing just once.I tried with some code like this :
public void onClick(View view) {
if(DrawSound.isPlaying()) {
DrawSound.stop();
DrawSound.prepareAsync();
}
DrawSound.start();
}
it's not wokring.Search a lot, but could make it work.Any help!!!!

Try using prepare instead of prepareAsync

This is because you are not releasing media player after its completed playing your sound ... use release and reset method in Media Players setOnCompletionListener Method...
you can use it like this ...
if(mp.isPlaying()) {
try {
mp.stop();
mp.reset();
mp.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
mp.start();
}
or you can use it ...
mp.stop();
mp.prepareAsync();
mp.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
mp.start();
}
});
This is working fine for me.

Hey guys if someone can get help from this:
just solve my problem with a trick(after all trick can do all :p)
i took 2 MediaPlayer object and one MediaPlayer reference and wrote like this :
soundPlayer = DrawSound.isPlaying() ? DrawSound1 : DrawSound;
soundPlayer.start();

Try this and see if it works:
if(DrawSound.isPlaying()) {
DrawSound.stop();
DrawSound.prepareAsync();
DrawSound.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
DrawSound.start();
}
});
}