Develop Reference

android play one sound at a time

I am stumped on this and I have referenced so many other posts. I'm not asking for anyone to complete my code but simply to point out where I'm going wrong and steer me into the right direction. I want to play an audio file when I click a image button but have it stop when another image button is clicked. The problem I'm having is if I press all the image buttons they will all play audio at the same time.
package com.application.cats.catsshapecolorapp;
import android.content.Context;
import android.media.MediaPlayer;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
public class ColorPage extends AppCompatActivity {
Context context = this;
MediaPlayer mpPurple,mpBlue,mpRed,mpGreen,mpYellow,mpPink;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_color_page);
mpPurple = MediaPlayer.create(context, R.raw.purpleaudiotest);
ImageButton purpleB = (ImageButton) findViewById(R.id.purpleButton);
purpleB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (mpPurple.isPlaying()) {
mpPurple.stop();
mpPurple.release();
mpPurple = MediaPlayer.create(context, R.raw.purpleaudiotest);
} mpPurple.start();
} catch(Exception e) { e.printStackTrace(); }
}
});
mpBlue = MediaPlayer.create(context, R.raw.blueaudiotest);
ImageButton blueB = (ImageButton) findViewById(R.id.blueButton);
blueB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (mpBlue.isPlaying()) {
mpBlue.stop();
mpBlue.release();
mpBlue = MediaPlayer.create(context, R.raw.blueaudiotest);
} mpBlue.start();
} catch(Exception e) { e.printStackTrace(); }
}
});
mpRed = MediaPlayer.create(context, R.raw.redaudiotest);
ImageButton redB = (ImageButton) findViewById(R.id.redButton);
redB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (mpRed.isPlaying()) {
mpRed.stop();
mpRed.release();
mpRed = MediaPlayer.create(context, R.raw.redaudiotest);
} mpRed.start();
} catch(Exception e) { e.printStackTrace(); }
}
});
mpGreen = MediaPlayer.create(context, R.raw.greenaudiotest);
ImageButton greenB = (ImageButton) findViewById(R.id.greenButton);
greenB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (mpGreen.isPlaying()) {
mpGreen.stop();
mpGreen.release();
mpGreen = MediaPlayer.create(context, R.raw.greenaudiotest);
} mpGreen.start();
} catch(Exception e) { e.printStackTrace(); }
}
});
mpYellow = MediaPlayer.create(context, R.raw.yellowaudiotest);
ImageButton yellowB = (ImageButton) findViewById(R.id.yellowButton);
yellowB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (mpYellow.isPlaying()) {
mpYellow.stop();
mpYellow.release();
mpYellow = MediaPlayer.create(context, R.raw.yellowaudiotest);
} mpYellow.start();
} catch(Exception e) { e.printStackTrace(); }
}
});
mpPink = MediaPlayer.create(context, R.raw.pinkaudiotest);
ImageButton pinkB = (ImageButton) findViewById(R.id.pinkButton);
pinkB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (mpPink.isPlaying()) {
mpPink.stop();
mpPink.release();
mpPink = MediaPlayer.create(context, R.raw.pinkaudiotest);
} mpPink.start();
} catch(Exception e) { e.printStackTrace(); }
}
});
}
update: now the problem is the pinkaudiotest is always the first audio file to play no matter what image button I click. I have to click a second time to hear the correct audio file.

You are creating a new MediaPlayer instance every click. Simply use a single one.
if (media.isPlaying()) {
media.stop();
media.release();
media= MediaPlayer.create(context, R.raw.purpleaudiotest);
} media.start();

onResume does not work after app is minimized

I have everything else working fine but when I minimize that app and then go back and try to resume my image buttons will not play the audio files associated with them. I have to go back to the start screen of the app and go back to the activity page with the image buttons just to get them to play the audio again. any hints would help.
public class ColorPage extends AppCompatActivity {
Context context = this;
MediaPlayer media = null;
#Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
if(media!=null){
media.stop();
media.release();
media = null;
}
}
#Override
protected void onResume() {
super.onResume();
if(media == null) {
media.start();
}
}
#Override
protected void onPause() {
super.onPause();
if(media != null) {
media.pause();
media.release();
media = null;
}
}
this is the code I'm using. everything else seems to work except the onResume().
I also used if(media != null) but all it did was cause the last audio file to play automatically every time I opened the activity page. If(media == null) was just the last thing I tried.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_color_page);
ImageButton pinkB = (ImageButton) findViewById(R.id.pinkButton);
ImageButton yellowB = (ImageButton) findViewById(R.id.yellowButton);
ImageButton purpleB = (ImageButton) findViewById(R.id.purpleButton);
ImageButton blueB = (ImageButton) findViewById(R.id.blueButton);
ImageButton greenB = (ImageButton) findViewById(R.id.greenButton);
ImageButton redB = (ImageButton) findViewById(R.id.redButton);
media = MediaPlayer.create(context, R.raw.purpleaudiotest);
purpleB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (media != null) {
media.stop();
media.release();
media = MediaPlayer.create(context, R.raw.purpleaudiotest);
}
media.start();
} catch (Exception e) {
e.printStackTrace();
}
}
});
media = MediaPlayer.create(context, R.raw.blueaudiotest);
blueB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (media != null) {
media.stop();
media.release();
media = MediaPlayer.create(context, R.raw.blueaudiotest);
}
media.start();
} catch (Exception e) {
e.printStackTrace();
}
}
});
media = MediaPlayer.create(context, R.raw.redaudiotest);
redB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (media != null) {
media.stop();
media.release();
media = MediaPlayer.create(context, R.raw.redaudiotest);
}
media.start();
} catch (Exception e) {
e.printStackTrace();
}
}
});
media = MediaPlayer.create(context, R.raw.greenaudiotest);
greenB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (media != null) {
media.stop();
media.release();
media = MediaPlayer.create(context, R.raw.greenaudiotest);
}
media.start();
} catch (Exception e) {
e.printStackTrace();
}
}
});
media = MediaPlayer.create(context, R.raw.yellowaudiotest);
yellowB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (media != null) {
media.stop();
media.release();
media = MediaPlayer.create(context, R.raw.yellowaudiotest);
}
media.start();
} catch (Exception e) {
e.printStackTrace();
}
}
});
media = MediaPlayer.create(context, R.raw.pinkaudiotest);
pinkB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
if (media != null) {
media.stop();
media.release();
media = MediaPlayer.create(context, R.raw.pinkaudiotest);
}
media.start();
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
}
This is the rest of the code for the class ColorPage so my question is a bit more clear.

Your checks in the each of the color button onClick only initialize the media when it is not null, (very strange) and in this case it also happens to be the problem. Your onPause nulls out the media, and onResume doesn't reinitialize it, so that if (media!=null) is always false, in fact, you probably gets npe on media.start() after that. handle the click like so.
if (media != null) {
media.stop();
media.release(); // release previous media if not null
}
// initialize this outside of the if block
media = MediaPlayer.create(context, R.raw.pinkaudiotest); // whatever color in each
media.start();
You've set media to null in onPause, assuming you want to just start where the audio has left off onResume. If you don't want to automatically start, there doesn't seem to be a point to implement onResume at all.
#Override
protected void onResume() {
super.onResume();
if(media != null) {
media.start();
}
}

How to play and pause in only one button - Android

I have two buttons in my media player that streams a radio station, play and pause. I want to make it only one button that has two function. First click I want to play it and second click I want to pause it. And when I click it again I want to play it. I need help. Here is my code.
play = (Button) findViewById(R.id.play);
pause = (Button) findViewById(R.id.pause);
play.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
play();
}
});
play.performClick();
pause.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
pause();
}
});
}
private void play() {
Uri myUri = Uri.parse("Shoutcast URL");
try {
if (mp == null) {
this.mp = new MediaPlayer();
} else {
mp.stop();
mp.reset();
}
mp.setDataSource(this, myUri); // Go to Initialized state
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
mp.setOnPreparedListener(this);
mp.setOnBufferingUpdateListener(this);
mp.setOnErrorListener(this);
mp.prepareAsync();
Log.d(TAG, "LoadClip Done");
} catch (Throwable t) {
Log.d(TAG, t.toString());
}
}
#Override
public void onPrepared(MediaPlayer mp) {
Log.d(TAG, "Stream is prepared");
mp.start();
}
private void pause() {
mp.pause();
}
#Override
public void onDestroy() {
super.onDestroy();
stop();
}
public void onCompletion(MediaPlayer mp) {
stop();
}

Create just one Button and add something like a buttonstatus. Then you can check the status in your listener.
For example:
boolean isPlaying = false;
playPause = (Button) findViewById(R.id.play);
playPause.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
if (isPlaying) {
pause();
}else{
play();
}
isPlaying = !isPlaying;
}
});

Boolean b = false;
Button play = (Button) findViewById(R.id.play);
play..setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
if(b == false)
{
//write play code here
b= true;
}
else
{
// enter pause code here
}
}
}

You can use Toggle button:
toggleButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (toggleButton.isChecked()) {
play();
} else {
pause();
}
}
});
You can also remove the green bar from toggle button.
Toggle button Mkyong example
Android dev tutorial

You don't need to declare any boolean variable to check player state. There is a method already available in mediaplayer class named - isPlaying().
Try my code sequence for playpause using single button.
public void playpause(){
if(!mp.isPlaying()){ // here mp is object of MediaPlayer class
mp.start();
//showNotification("Player State Plying");
}
else if(mp.isPlaying()){
mp.pause();
//showNotification("Player State Pause");
}
}

Android Media Player play/pause Button

In my project, I am playing music file in android media player by using the following code
MediaPlayer mPlayer = MediaPlayer.create(MyActivity.this, R.raw.myfile);
mPlayer.start();
the above is coded in the onclick of the play button.
I want to pause the playback by clicking the same button again.ie) single button for play/pause.
How shall i do this.

You could use simple if-check to handle the pausing. Try this:
if(mPlayer.isPlaying()){
mPlayer.pause();
} else {
mPlayer.start();
}

Please try this::
final Button bPlay = (Button) findViewById(R.id.bPlay);
MediaPlayer song1 = MediaPlayer.create(tutorialFour.this, R.raw.fluet);
Button bStop = (Button) findViewById(R.id.bStop);
bPlay.setWidth(10);
song1.setOnCompletionListener(new OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
bPlay.setText("Play");
}
});
bPlay.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
b = true;
if (bPlay.getText().equals("Play") && b == true) {
song1.start();
bPlay.setText("Pause");
b = false;
} else if (bPlay.getText().equals("Pause")) {
x = song1.getCurrentPosition();
song1.pause();
bPlay.setText("Resume");
Log.v("log", "" + x);
b = false;
} else if (bPlay.getText().equals("Resume") && b == true) {
song1.seekTo(x);
song1.start();
bPlay.setText("Pause");
b = false;
}
}
});

Inside the button click check for mediaPlayer.isPlaying(). This will return true if the media player is playing else false.
So now with this, flag value you can make a if statement and switch to play or pause like this,
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
if (mediaplayer.isPlaying()) {
mediaplayer.pause();
} else {
mediaplayer.start();
}
}
});

Below code takes care of your play/pause button click event along with forward and backward buttons for forward and backward seek on the seekbar provided (which is synchronized with the media track). Currently it plays just ONE song. However, you can add to that. This is my first media player using mediaplayer class, so you might find it a bit primitive. However if you need you can also check out the VideoView examples. It's apparently easier with VideoView as the standard media console is already present in the form of pre-defined widgets. so that makes designing the player much easier.
package in.org.Test;
import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.Toast;
public class Test12Activity extends Activity implements OnClickListener,Runnable {
private static final String isPlaying = "Media is Playing";
private static final String notPlaying = "Media has stopped Playing";
private SeekBar seek;
MediaPlayer player = new MediaPlayer();
private ImageButton plus,minus;
ImageButton im;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
plus = (ImageButton) findViewById(R.id.imageButton2);
minus = (ImageButton) findViewById(R.id.imageButton3);
player = MediaPlayer.create(this, R.raw.sound2);
player.setLooping(false);
im = (ImageButton) this.findViewById(R.id.imageButton1);
seek = (SeekBar) findViewById(R.id.seekBar1);
seek.setVisibility(ProgressBar.VISIBLE);
seek.setProgress(0);
seek.setMax(player.getDuration());
new Thread(this).start();
im.setOnClickListener(this);
player.start();
Toast.makeText(this, isPlaying, Toast.LENGTH_LONG).show();
plus.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) { int cu = player.getCurrentPosition(); player.seekTo(cu-5000); }});
minus.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {int cu = player.getCurrentPosition(); player.seekTo(cu+5000);}});
}
#Override
public void onClick(View arg0) {
if (arg0.getId() == R.id.imageButton1) {
if(player.isPlaying()) {
player.pause();
Toast.makeText(this, notPlaying, Toast.LENGTH_LONG).show();
ImageButton img1=(ImageButton) this.findViewById(R.id.imageButton1);
img1.setImageResource(R.drawable.play);
}
else
{
player.start();
Toast.makeText(this, isPlaying, Toast.LENGTH_LONG).show();
ImageButton img1=(ImageButton) this.findViewById(R.id.imageButton1);
img1.setImageResource(R.drawable.pause);
}
}
}
#Override
public void run() {
int currentPosition= 0; String s;
int total = player.getDuration();
while (player!=null && currentPosition<total) {
try {
Thread.sleep(1000);
currentPosition= player.getCurrentPosition();
} catch (InterruptedException e) {
return;
} catch (Exception e) {
return;
}
seek.setProgress(currentPosition);
}
}
}

MediaPlayer mpE = MediaPlayer.create(GuitarTuner.this, R.raw.test2 );
play.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (mpE.isPlaying()) {
mpE.pause();
play.setBackgroundResource(R.drawable.play);
} else {
mpE.start();
play.setBackgroundResource(R.drawable.pause);
}
}
});

For pausing the Mediaplayer:
Mediaplayer.pause();
length = Mediaplayer.getCurrentPosition();
and for resuming the player from the position where it stopped lately is done by:
Mediaplayer.seekTo(length);
Mediaplayer.start();

public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//the song was previously saved in the raw folder. The name of the song is mylife (it's an mp3 file)
final MediaPlayer mMediaPlayer = MediaPlayer.create(MainActivity.this, R.raw.mylife);
// Play song
Button playButton = (Button) findViewById(R.id.play);
playButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
mMediaPlayer.start(); // no need to call prepare(); create() does that for you
}
});
// Pause song
Button pauseButton = (Button) findViewById(R.id.pause);
pauseButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
mMediaPlayer.pause();
}
});
// Stop song - when you stop a song, you can't play it again. First you need to prepare it.
Button stopButton = (Button) findViewById(R.id.stop);
stopButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
mMediaPlayer.stop();
mMediaPlayer.prepareAsync();
}
});
}
}

button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String text = button.getText().toString();
if (text.equals("play")){
mediaPlayer.start();
button.setText("pause"); //changing text
}
else if (text.equals("pause")){
mediaPlayer.pause();
button.setText("play"); //changing text
}
}
});

very simple solution. If mediaplayer is playing, display play button and pause the mediaplayer. If not playing, do the opposite.
playBtn.setOnClickListener(view -> {
//events on play buttons
if(mediaPlayer.isPlaying()){
mediaPlayer.pause();
playBtn.setImageResource(R.drawable.play);
} else {
mediaPlayer.pause();
playBtn.setImageResource(R.drawable.pause);
}
});

while playing can change the sound output?

Recently I started with Android.
I'm trying to do a small example to understand how the sound output with android.
To this I build me a program that plays an mp3 file, and while this playing can change the sound output to:
Internal Speaker
External Speaker
Headset
Earpiece
Is this possible?
I have part of the code done, but do not know how to jump from a sound output to another.
public class TestAudioActivity extends Activity {
private MediaPlayer mediaPlayer;
private ImageButton playButton;
private ImageButton pauseButton;
private ImageButton stopButton;
AudioManager audioManager;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initializeMediaPlayer();
playButton = (ImageButton) findViewById(R.id.playButton);
pauseButton = (ImageButton) findViewById(R.id.pauseButton);
stopButton = (ImageButton) findViewById(R.id.stopButton);
playButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
if (mediaPlayer != null)
mediaPlayer.start();
else
initializeMediaPlayer();
}
});
pauseButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
/** if (mediaPlayer != null)
mediaPlayer.pause(); */
audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
audioManager.setSpeakerphoneOn(false);
mediaPlayer.setAudioStreamType(AudioManager.STREAM_VOICE_CALL);
}
});
stopButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
if (mediaPlayer != null) {
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
}
});
}
private void initializeMediaPlayer() {
try {
mediaPlayer = new MediaPlayer();
mediaPlayer.setDataSource("http://server3.pianosociety.com/protected/bach-bwv772-stahlbrand.mp3");
mediaPlayer.prepare();
} catch (IllegalArgumentException e) {
// Mostramos mensaje en caso de error.
Toast.makeText(getApplicationContext(), "URL no encontrada", 2000);
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Can anyone help?
Thank you.

I have never played with media activities yet, but yes you can change your sound output while playing for example you can use
audioManager.setMode(AudioManager.MODE_IN_CALL);
audioManager.setSpeakerphoneOn(true);