add this code in onItemClickListener.

listView.setOnItemClickListener(new OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> arg0, View view, int position,long id) {                                 TextView txtView=(TextView)view.findViewById(R.id.txt_view);                String fname=txtView.getText().toString().toLowerCase();                                int resID=getResources().getIdentifier(fname, "raw", getPackageName());                              MediaPlayer mediaPlayer=MediaPlayer.create(this,resID);                    mediaPlayer.start();            }        });

try this for playing from raw ::

MediaPlayer mPlayer2;mPlayer2= MediaPlayer.create(this, R.raw.bg_music_wav);        mPlayer2.start();

permission in manifest file ::

<uses-permission android:name="android.permission.INTERNET"></uses-permission><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>

Update::

public void onItemClick(AdapterView<?> arg0, View view, int position,long id) {       MediaPlayer mPlayer2;if(position==1){    mPlayer2= MediaPlayer.create(this, R.raw.song1);            mPlayer2.start();}else it() .....}

mVideoView = (VideoView) findViewById(R.id.Video_FrontPage);uri = Uri.parse("android.resource://com.urPackageName/" + R.raw.welcom_video);mVideoView.setVideoURI(uri);mVideoView.setMediaController(new MediaController(this));mVideoView.requestFocus();mVideoView.start();

Hope this may helps you.