How to play stop url in android

package com.fwosmartmotorways.www.fwo;

import android.app.ProgressDialog;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.target.GlideDrawableImageViewTarget;
import com.google.android.gms.games.Player;

import java.io.IOException;

public class Radio extends BaseActivity {
Button button_radio,btn;
    private MediaPlayer mediaPlayer;
   
    ImageView imageView;
    private boolean playPause;
    private boolean intialStage = true;

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_radio);
        imageView=(ImageView)findViewById(R.id.img_gif);
        GlideDrawableImageViewTarget imageViewTarget = new GlideDrawableImageViewTarget(imageView);
        Glide.with(this).load(R.raw.radio).into(imageViewTarget);
        btn = (Button) findViewById(R.id.button9);
        mediaPlayer = new MediaPlayer();
        mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
        btn.setOnClickListener(pausePlay);



    }
/** * preparing mediaplayer will take sometime to buffer the content so prepare it inside the background thread and starting it on UI thread. * @author piyush * */private View.OnClickListener pausePlay = new View.OnClickListener() {

    @Override    public void onClick(View v) {
        // TODO Auto-generated method stub        // TODO Auto-generated method stub
        if (!playPause) {
            btn.setBackgroundResource(R.drawable.stop);
            if (intialStage)
                new Player()
                        .execute("http://61.5.146.88:8000/SUNO");
            else {
                if (!mediaPlayer.isPlaying())
                    mediaPlayer.start();
            }
            playPause = true;
        } else {
            btn.setBackgroundResource(R.drawable.play);
            if (mediaPlayer.isPlaying())
                mediaPlayer.pause();
            playPause = false;
        }
    }

    class Player extends AsyncTask<String, Void, Boolean> {
        private ProgressDialog progress;

        @Override        protected Boolean doInBackground(String... params) {
            // TODO Auto-generated method stub            Boolean prepared;
            try {

                mediaPlayer.setDataSource(params[0]);

                mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {

                    @Override                    public void onCompletion(MediaPlayer mp) {
                        // TODO Auto-generated method stub                        intialStage = true;
                        playPause = false;
                        btn.setBackgroundResource(R.drawable.play);
                        mediaPlayer.stop();
                        mediaPlayer.reset();
                    }
                });
                mediaPlayer.prepare();
                prepared = true;
            } catch (IllegalArgumentException e) {
                // TODO Auto-generated catch block                Log.d("IllegarArgument", e.getMessage());
                prepared = false;
                e.printStackTrace();
            } catch (SecurityException e) {
                // TODO Auto-generated catch block                prepared = false;
                e.printStackTrace();
            } catch (IllegalStateException e) {
                // TODO Auto-generated catch block                prepared = false;
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block                prepared = false;
                e.printStackTrace();
            }
            return prepared;
        }

        @Override        protected void onPostExecute(Boolean result) {
            // TODO Auto-generated method stub            super.onPostExecute(result);
            if (progress.isShowing()) {
                progress.cancel();
            }
            Log.d("Prepared", "//" + result);
            mediaPlayer.start();

            intialStage = false;
        }

        public Player() {
            progress = new ProgressDialog(Radio.this);
        }

        @Override        protected void onPreExecute() {
            // TODO Auto-generated method stub            super.onPreExecute();
            this.progress.setMessage("Buffering...");
            this.progress.show();

        }
    }
};

        @Override        protected void onPause () {
            // TODO Auto-generated method stub            super.onPause();
            if (mediaPlayer != null) {
                mediaPlayer.reset();
                mediaPlayer.release();
                mediaPlayer = null;
            }

    }
   /* @Override    public void onBackPressed() {        if(mediaPlayer!=null && mediaPlayer.isPlaying()){            Toast.makeText(getApplicationContext(),"Pause",Toast.LENGTH_LONG).show();            mediaPlayer.stop();

        }        finish();
    }*/}