How to play and pause in only one button - Android

Question

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();
}

• user2652394: Create a boolean value for that, if it is "PLAY" then call the "pause()", toggle the variable and vice versa.
• jajaja: Can you help me edit my code? I'm a newbie to android.

Answer 1

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;
}
});

• jajaja: it says change modifier of buttonStatus into final
• jajaja: then when i put final boolean, it says it cannot be defined since its in enclosing type.
• Raghunandan: declare it as a class variable
• Obl Tobl: you have to put the variable isPlaying outside of your function. for example direct under your class name

Answer 2

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
 }
 }
}

• jajaja: it says change modifier of b into final, then when i put final boolean, it says it cannot be defined since its in enclosing type.

Answer 3

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

Answer 4

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");
 }
 }