title: Android sound only plays once
body: <p>I was making an app in java for android, and whenever a button is clicked, a sound plays. It works fine but pressing the button once makes it play, and then pressing that button or any other button doesn't do anything.</p>
  
  <pre><code>import android.app.Activity;
  import android.media.MediaPlayer;
  import android.os.Bundle;
  import android.view.Menu;
  import android.view.View;
  import android.widget.Button;
  
  public class MainActivity extends Activity {
  
  Button s1, s2, s3, s4;
  MediaPlayer ss1, ss2, ss3, ss4;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.linear);    
  
      s1 = (Button) findViewById(R.id.s1);
      s2 = (Button) findViewById(R.id.s2);
      s3 = (Button) findViewById(R.id.s3);
      s4 = (Button) findViewById(R.id.s4);
  
      s1.setOnClickListener(new View.OnClickListener(){
  
          public void onClick(View v){
              ss1 = MediaPlayer.create(MainActivity.this, R.raw.sound1);
              ss1.start();
          }
      });
  
      s2.setOnClickListener(new View.OnClickListener(){
  
          public void onClick(View v){
              ss2 = MediaPlayer.create(MainActivity.this, R.raw.sound2);
              ss2.start();
          }
      });
  
      s3.setOnClickListener(new View.OnClickListener(){
  
          public void onClick(View v){
              ss3 = MediaPlayer.create(MainActivity.this, R.raw.sound3);
              ss3.start();
          }
      });
  
      s4.setOnClickListener(new View.OnClickListener(){
  
          public void onClick(View v){
              ss4 = MediaPlayer.create(MainActivity.this, R.raw.sound4);
              ss4.start();
          }
      });
  
  
  
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.main, menu);
      return true;
  }
  
  }  
  </code></pre>
  
  <p>How can I fix this?</p>