Develop Reference

MediaPlayer will not stop or pause

I am trying to make a simple app to help me learn how to code for Android. The apps principle is simply this: When you press down on a button it starts playing a sound file. When you release the button, the audio stops. Pressing down on the button works, but releasing it does not. Thanks in advance! Here is my java code:
package com.example.siriu.presstoplay;
import android.media.MediaPlayer;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.view.MotionEvent;
import android.util.Log;
public class MainActivity extends AppCompatActivity {
private MediaPlayer mp;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button = findViewById(R.id.pressbutton);
button.setOnTouchListener(handleTouch);
mp = MediaPlayer.create(this, R.raw.test);
}
private View.OnTouchListener handleTouch = new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.d("button", "down");
play();
break;
case MotionEvent.ACTION_UP:
Log.d("button", "up");
pause();
break;
}
return true;
}
};
public void play (){
final MediaPlayer mp = MediaPlayer.create(this, R.raw.test);
mp.start();
Log.d("MediaPlayer", "started");
}
public void pause (){
mp.stop();
Log.d("MediaPlayer", "paused");
}
}

Android MediaPlayer will not stop or pause
Because in your play () method you are starting local declared MediaPlayer of play () method
and in your pause () you are trying to stop MediaPlayer that you have declared global
in this situation your global declared MediaPlayer mp; hasn't start yet
Try this
Remove final MediaPlayer mp = MediaPlayer.create(this, R.raw.test); from Your play() Method
public void play (){
mp.start();
Log.d("MediaPlayer", "started");
}

Media Player Button Is Not Restarting

I wanna make "Play/Stop" button. When button "Play" is clicked, the song must be played and its text should be converted into "Stop" and when "Stop" is clicked, the button text should be changed into "Play" again and song should start again to play from the beginning.
import android.media.MediaPlayer;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import java.io.IOException;
public class MainActivity extends AppCompatActivity {
private Button btn_playStop;
private MediaPlayer mediaPlayer;
private boolean flag = false;
#Override
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActionBar actionBar = getSupportActionBar();
actionBar.setTitle("Play Music");
mediaPlayer = MediaPlayer.create(MainActivity.this, R.raw.zara_sa);
btn_playStop = (Button)findViewById(R.id.btn_play_stop);
btn_playStop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mediaPlayer.isPlaying() && flag==true){
stopSong();
}
else if (flag == false){
playSong();
}
}
});
}
public void playSong(){
mediaPlayer.start();
btn_playStop.setText("Stop");
flag = true;
}
public void stopSong() {
mediaPlayer.stop();
btn_playStop.setText("Play");
flag = false;
}
}

You must call mediaPlayer.prepare(); if you called mediaPlayer.stop(); so in the first time you can just call mediaPlayer.start(); but in the next times you should call mediaPlayer.prepare(); before mediaPlayer.start();
public void playSong(){
try {
mediaPlayer.prepare();
} catch (IOException e) {
}
mediaPlayer.start();
btn_playStop.setText("Stop");
flag = true;
}

MediaPlayer not working at all

I am a very beginner in Android, I am trying to make a MediaPlayer works but I have some errors.
1-If I click on play again , start playing twice at the same time.
2-If click on puse, doesn't happen anything.
3-My intention is to do a reproduction list with play, pause and stop.
Thanks in advance.
package com.example.android.allmusic;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.TextView;
import android.media.MediaPlayer;
public class RomanticActivity extends AppCompatActivity {
boolean firstSongBoolean;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_romantic);
TextView firstSong = (TextView) findViewById(R.id.first_song);
firstSong.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
MediaPlayer mp = MediaPlayer.create(getApplicationContext(), R.raw.primero);
if (!mp.isPlaying()) {mp.start();}
}
});
ImageView firstSongPause = (ImageView) findViewById(R.id.first_song_pause);
firstSongPlay.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
MediaPlayer mp = MediaPlayer.create(getApplicationContext(), R.raw.primero);
if (mp.isPlaying()) { mp.pause(); }
}
});
}
}

Try declaring your MediaPlayer as a member variable, it should be enough to set it on your onCreate, but just declare it as an attribute of your class to test.
Since you are creating a new reference to the MediaPlayer every time you click on the ImageView or the TextView, you don't the old reference to pause it or to know if it has already been started.
Code:
public class RomanticActivity extends AppCompatActivity {
boolean firstSongBoolean;
//MediaPlayer as a member variable
private MediaPlayer mp;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_romantic);
mp = MediaPlayer.create(getApplicationContext(), R.raw.primero);
TextView firstSong = (TextView) findViewById(R.id.first_song);
firstSong.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (!mp.isPlaying()) {
mp.start();
}
}
});
ImageView firstSongPause = (ImageView) findViewById(R.id.first_song_pause);
firstSongPlay.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (mp.isPlaying()) {
mp.pause();
}
}
});
}
}

Double sound android

package project.kalmas;
import android.app.Activity;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
public class one extends Activity {
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.one);
}
public void onclick2(View view)
{
Intent i=new Intent("project.two");
startActivity(i);
}
public void onclick3(View view)
{
MediaPlayer mp= MediaPlayer.create(this,R.raw.one);
if(mp.isPlaying()){
mp.stop();
} else {
mp.start();
}
}
}
When i click button it play sound then again i click button to stop it wont stop and play sound again which results in double sound playing at one time.Please help

You are creating a new MediaPlayer with every click, instead of keeping a reference to the first one. The MediaPlayer that is playing the sound is different than the MediaPlayer that you are calling isPlaying() on. You need to turn the mp variable into a field so you can keep a reference to it.
I imagine something like this would work:
public class one extends Activity {
MediaPlayer mp;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.one);
mp = MediaPlayer.create(this,R.raw.one);
}
public void onclick2(View view)
{
Intent i=new Intent("project.two");
startActivity(i);
}
public void onclick3(View view)
{
if(mp.isPlaying()){
mp.stop();
} else {
mp.start();
}
}
}

I am wanting to Run Multiple mediaplayers at once

I am new to Android development and am working on an app that I use for my work. It required multiple buttons to each pay a sound. It is however more complicated than that.
I have managed to make a mediaplayer that will play sounds, pause, fade etc from buttons giving the button tag a string that is passed to the player as file to play. I can press other buttons and start a new sound without problems after stopping and releasing the MP. My problem is As this is for my theatre show. I want to be able to cross mix (i.e as one sound fades the next is starting). The first thought is I need a different MP for each button (which would use a lot of copy code) and also I want to be able to set up nearly 100 buttons.
Has anyone done this before, I have searched for hours online to find very little help. Any help would be useful thank you in advance.
My code is below
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.media.MediaPlayer;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
import android.widget.Button;
import android.widget.TextView;
import android.view.View.OnLongClickListener;
import android.util.Log;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
import java.util.Timer;
import java.util.TimerTask;
public class MainActivity extends Activity {
MediaPlayer mp, mp2 ;
Button Sound1 ,Sound2, Stop, Pause , Fade;
TextView displaystatus;
String bName = "button pressed";
//set variables for volume control
private int iVolume;
private final static int INT_VOLUME_MAX = 100;
private final static int INT_VOLUME_MIN = 0;
private final static float FLOAT_VOLUME_MAX = 1;
private final static float FLOAT_VOLUME_MIN = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//connect interface to local variables
Fade=(Button)findViewById(R.id.bfade);
Sound1 = (Button)findViewById(R.id.bSound1);
Sound2 = (Button)findViewById(R.id.bSound2);
Stop =(Button)findViewById(R.id.bStop); Pause=(Button)findViewById(R.id.bPause);
displaystatus=(TextView)findViewById(R.id.tStatus);
mp2=new MediaPlayer();
//Button clicks to make play/pause/stop
Sound1.setOnClickListener(buttonPlayOnClickListener);
Sound2.setOnClickListener(buttonPlayOnClickListener);
Pause.setOnClickListener(buttonPauseOnClickListener);
Stop.setOnClickListener( buttonQuitOnClickListener);
Fade.setOnClickListener( buttonFadeOnClickListener);
//set onlongclicklistener to open SoundDetailActivity
Sound1.setOnLongClickListener(new View.OnLongClickListener(){
public boolean onLongClick(View v) {
//get the tag for the button pressed
bName= v.getTag().toString();
whenLongClick();
return true;
};
});
//set long click listener to open SoundDetailActivity
Sound2.setOnLongClickListener(new View.OnLongClickListener(){
public boolean onLongClick(View v) {
//get the tag for the button pressed
bName= v.getTag().toString();
whenLongClick();
return true;
};
});
}
private void initMediaPlayer ()
{
if(mp!=null){mp.stop();
mp.release();}
mp = new MediaPlayer();
File path=android.os.Environment.getExternalStorageDirectory();
try {
Log.v("paddy",path+bName);
mp.setDataSource(path+bName );
mp.prepare();
}catch (IOException e){
e.printStackTrace();
}
}
Button.OnClickListener buttonPlayOnClickListener
= new Button.OnClickListener(){
#Override
public void onClick(View v) {
bName= v.getTag().toString();
initMediaPlayer();
Log.v("paddy",bName);
// if(mp.isPlaying()) {mp.reset();}
mp.start();
displaystatus.setText("- PLAYING -");
Pause.setText("Pause");
Log.v("paddy","no sound was playing");
}
};
Button.OnClickListener buttonPauseOnClickListener
= new Button.OnClickListener(){
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(mp.isPlaying()) {
mp.pause();
displaystatus.setText("- resume -");
Pause.setText("Resume");
}else{
mp.start();
displaystatus.setText("- playing -");
Pause.setText("Pause");
}
//finish();
}
};
Button.OnClickListener buttonQuitOnClickListener
= new Button.OnClickListener(){
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
mp.stop();
mp.reset();
displaystatus.setText("- Ready -");
}
};
public Button.OnClickListener buttonFadeOnClickListener
=new Button.OnClickListener(){
#Override
public void onClick(View v) {
fade(5000); ///time in milliseconds
// TODO Auto-generated method stub
// mp.stop();
displaystatus.setText("- Fade out -");
//finish();
}
};
public void fade(int fadeDuration)
{
//Set current volume, depending on fade or not
if (fadeDuration > 0)
iVolume = INT_VOLUME_MAX;
else
iVolume = INT_VOLUME_MIN;
updateVolume(0);
//Start increasing volume in increments
if(fadeDuration > 0)
{
final Timer timer = new Timer(true);
TimerTask timerTask = new TimerTask()
{
public void run() {
MainActivity.this.runOnUiThread(new Runnable() {
#Override
public void run() {
updateVolume(-1);
if (iVolume <= INT_VOLUME_MIN) {
timer.cancel();
timer.purge();
//Pause music
if (mp.isPlaying()) mp.stop();
mp.release();
mp = new MediaPlayer();
mp = MediaPlayer.create(MainActivity.this, R.raw.franksinatra);
displaystatus.setText("- Ready -");
Log.v("paddy","getting to end of fade");
}
}
});
}
};
// calculate delay, cannot be zero, set to 1 if zero
int delay = fadeDuration/INT_VOLUME_MAX;
if (delay == 0) delay = 1;
timer.schedule(timerTask, delay, delay);
}
}
// when a button is longclicked the activity sound details is opened and the sound button tag is sent as an extra.
public void whenLongClick () {
Toast.makeText(getApplicationContext(), bName , Toast.LENGTH_LONG).show();
Intent i = new Intent(this,SoundDetailActivity.class);
i.putExtra("ButtonId",bName);
startActivity(i);
}
private void updateVolume(int change)
{
//increment or decrement depending on type of fade
iVolume = iVolume + change;
//ensure iVolume within boundaries
if (iVolume < INT_VOLUME_MIN)
iVolume = INT_VOLUME_MIN;
else if (iVolume > INT_VOLUME_MAX)
iVolume = INT_VOLUME_MAX;
//convert to float value
float fVolume = 1 - ((float) Math.log(INT_VOLUME_MAX - iVolume) / (float) Math.log(INT_VOLUME_MAX));
//ensure fVolume within boundaries
if (fVolume < FLOAT_VOLUME_MIN)
fVolume = FLOAT_VOLUME_MIN;
else if (fVolume > FLOAT_VOLUME_MAX)
fVolume = FLOAT_VOLUME_MAX;
mp.setVolume(fVolume, fVolume);
}
}