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POHow to change the state of song from stop to start?
 

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  1. POHow to change the state of song from stop to start?
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    <p>I have make one application in android in which i take three buttons in xml and in java i set the onclick event, </p> <p>when play button is clicked song is prepared and play, when stop button is clicked song is stopped, when pause button is clicked song is paused.</p> <p>But my problem is that when I clicked play button song is played after i click on stop button then song is stopped after I clicked on play button, but at this time song is not played,</p> <p>the code I created for this app. is given below.</p> <pre><code>package com.mydemo; import java.io.IOException; import android.app.Activity; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MydemoActivity extends Activity { /** Called when the activity is first created. */ Button bPlay,bPause,bStop; MediaPlayer mp; int position = 0; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mp = MediaPlayer.create(this, R.raw.fluet); bPlay = (Button) findViewById(R.id.bPlay); bPause = (Button)findViewById(R.id.bPause); bStop = (Button) findViewById(R.id.bStop); bPause.setVisibility(View.GONE); mp.setOnCompletionListener(new OnCompletionListener() { @Override public void onCompletion(MediaPlayer arg0) { position = 0; bPlay.setVisibility(View.VISIBLE); bPause.setVisibility(View.GONE); } }); bPlay.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { if(position &gt; 0) { mp.seekTo(position); mp.start(); } try { mp.prepare(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } mp.start(); bPlay.setVisibility(View.GONE); bPause.setVisibility(View.VISIBLE); } }); bPause.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { if(mp!=null) { mp.pause(); position = mp.getCurrentPosition(); } bPlay.setVisibility(View.VISIBLE); bPause.setVisibility(View.GONE); } }); bStop.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { mp.stop(); position = 0; bPlay.setVisibility(View.VISIBLE); bPause.setVisibility(View.GONE); } }); } } </code></pre> <p><strong>see this Updated code:</strong></p> <pre><code>package com.mydemo; import java.io.IOException; import android.app.Activity; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MydemoActivity extends Activity { /** Called when the activity is first created. */ Button bPlay,bPause,bStop; MediaPlayer mp; int position = 0; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mp = MediaPlayer.create(this, R.raw.fluet); bPlay = (Button) findViewById(R.id.bPlay); bPause = (Button)findViewById(R.id.bPause); bStop = (Button) findViewById(R.id.bStop); bPause.setVisibility(View.GONE); mp.setOnCompletionListener(new OnCompletionListener() { @Override public void onCompletion(MediaPlayer arg0) { position = 0; bPlay.setVisibility(View.VISIBLE); bPause.setVisibility(View.GONE); } }); bPlay.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { if(mp.isPlaying() == false) { try { mp.prepare(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } mp.start(); } bPlay.setVisibility(View.GONE); bPause.setVisibility(View.VISIBLE); } }); bPause.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { if(mp!=null) { mp.pause(); position = mp.getCurrentPosition(); } bPlay.setVisibility(View.VISIBLE); bPause.setVisibility(View.GONE); } }); bStop.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { mp.stop(); position = 0; bPlay.setVisibility(View.VISIBLE); bPause.setVisibility(View.GONE); } }); } } </code></pre>
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