setVisibility(View.VISIBLE);playButton = (Button) findViewById(R.id.play);
playButton.setVisibility(1);
playButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//when play is clicked show stop button and hide play button
playButton.setVisibility(View.GONE);
stopButton.setVisibility(View.VISIBLE);
}
});