how to play a sound on click of button

Question

i am trying to play sound file on the emulator on click of button but i am getting message \"application play audio has stopped unexpectedly\"

my codes are:

Answer 1

    //inside toggle button 
    toggleButton = (ToggleButton)findViewById(R.id.sound);
    final MediaPlayer mp = MediaPlayer.create(this, R.raw.theme);
    if(toggleButton.isChecked())
        mp.start();
    toggleButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if(!toggleButton.isChecked()){
                mp.pause();
            }
            else {
                mp.start();
                mp.isLooping();
            }
        }
    });