Как создать звуковое уведомление переднего плана из recyclerview. любой класс

Надеюсь, у вас все хорошо. У меня возникли проблемы с созданием службы уведомлений.

У меня есть аудиоприложение с recyclerviews и его класс адаптера, содержащий средства просмотра. Из onBindviewholder я создал метод onclicklistener, который открывает активность игрока.

Я хотел бы, чтобы когда вы нажимали на любой элемент recyclerview, он запускал звук вместе с уведомлением переднего плана.

Пожалуйста, дайте свои ответы в письменном коде, так как я новичок в жаргоне кода. Заранее спасибо.

Вот мой код: Активность игрока

public class Player extends AppCompatActivity implements MediaPlayer.OnCompletionListener {
    
    TextView song_name, duration_played, total_duration;
    ImageView  nextbtn,prevbtn,shufflebtn,repeatbtn;
    SeekBar seekBar;
    FloatingActionButton playpausebtn;
    Uri uri;
    int position=-1;
   int finalTime;
    private cardhelper currentItem;
    static MediaPlayer mMediaplayer;
   static List<cardhelper>macam = new ArrayList<>();
   private Handler handler = new Handler();
   private Thread playThread, prevThread,nextThread;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_player);
        initViews();
        getIntentMethod();
        song_name.setText(macam.get(position).getSurah());
        mMediaplayer.setOnCompletionListener(this);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                if (mMediaplayer!=null && fromUser){
                    mMediaplayer.seekTo(progress * 1000);
                }

            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

            }
        });
        Player.this.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                if (mMediaplayer!=null){
                    int mCurrentposition = mMediaplayer.getCurrentPosition()/1000;
                    seekBar.setProgress(mCurrentposition);
                    duration_played.setText(formattedTime(mCurrentposition));

                    finalTime = mMediaplayer.getDuration()/1000;
                    total_duration.setText(formattedTime(finalTime));

                }


                handler.postDelayed(this, 1000);
            }
        });
        shufflebtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (shuffleboolean){
                    shuffleboolean=false;
                    shufflebtn.setImageResource(R.drawable.ic_shuffle);
                }else{
                    shuffleboolean=true;
                    shufflebtn.setImageResource(R.drawable.ic_shuffle_on);
                }
            }
        });
        repeatbtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (repeatBoolean){
                    repeatBoolean=false;
                    repeatbtn.setImageResource(R.drawable.ic_repeat);
                }else{
                    repeatBoolean=true;
                    repeatbtn.setImageResource(R.drawable.ic_repeat_on);
                }
            }
        });
        
    }

    @Override
    protected void onResume() {
        playThreadbtn();
        nextThreadbtn();
        prevThreadbtn();
        super.onResume();
    }

    private void playThreadbtn() {
        playThread= new Thread(){
            @Override
            public void run() {
                super.run();
                playpausebtn.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        playpausebtnClicked();
                    }
                });

            }
        };
        playThread.start();
    }

    private void playpausebtnClicked() {
        if (mMediaplayer.isPlaying()){
            playpausebtn.setImageResource(R.drawable.ic_play);
            mMediaplayer.pause();
            seekBar.setMax(mMediaplayer.getDuration()/1000);
            Player.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    if (mMediaplayer!=null){
                        int mCurrentposition = mMediaplayer.getCurrentPosition()/1000;
                        seekBar.setProgress(mCurrentposition);


                    }


                    handler.postDelayed(this, 1000);
                }
            });

        }else{
            playpausebtn.setImageResource(R.drawable.ic_baseline_pause_24);
            mMediaplayer.start();
            seekBar.setMax(mMediaplayer.getDuration()/1000);
            Player.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    if (mMediaplayer!=null){
                        int mCurrentposition = mMediaplayer.getCurrentPosition()/1000;
                        seekBar.setProgress(mCurrentposition);


                    }


                    handler.postDelayed(this, 1000);
                }
            });
        }
    }

    private void nextThreadbtn() {
        nextThread= new Thread(){
            @Override
            public void run() {
                super.run();
                nextbtn.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        nextbtnClicked();
                    }
                });

            }
        };
        nextThread.start();

    }

    private void nextbtnClicked() {
        if (mMediaplayer.isPlaying()){
            mMediaplayer.stop();
            mMediaplayer.release();
            if (shuffleboolean && !repeatBoolean){
                position= getRandom(macam.size() - 1);
            }
            else if (! shuffleboolean && ! repeatBoolean){
                position=((position + 1)% macam.size());
            }
            //else  position will be position..

           int cardhelper= macam.get(position).getAudio();
           mMediaplayer= MediaPlayer.create(getApplicationContext(), cardhelper);
            song_name.setText(macam.get(position).getSurah());
            seekBar.setMax(mMediaplayer.getDuration()/1000);
            Player.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    if (mMediaplayer!=null){
                        int mCurrentposition = mMediaplayer.getCurrentPosition()/1000;
                        seekBar.setProgress(mCurrentposition);


                    }


                    handler.postDelayed(this, 1000);
                }
            });
            mMediaplayer.setOnCompletionListener(this);
            playpausebtn.setBackgroundResource(R.drawable.ic_baseline_pause_24);
            mMediaplayer.start();

        }else {
            mMediaplayer.stop();
            mMediaplayer.release();
            if (shuffleboolean && !repeatBoolean){
                position= getRandom(macam.size() - 1);
            }
            else if (! shuffleboolean && ! repeatBoolean){
                position=((position + 1)% macam.size());
            }

            int cardhelper= macam.get(position).getAudio();
            mMediaplayer= MediaPlayer.create(getApplicationContext(), cardhelper);
            song_name.setText(macam.get(position).getSurah());
            seekBar.setMax(mMediaplayer.getDuration()/1000);
            Player.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    if (mMediaplayer!=null){
                        int mCurrentposition = mMediaplayer.getCurrentPosition()/1000;
                        seekBar.setProgress(mCurrentposition);

                    }

                    handler.postDelayed(this, 1000);
                }
            });
            mMediaplayer.setOnCompletionListener(this);
            playpausebtn.setBackgroundResource(R.drawable.ic_play);
        }
    }

    private int getRandom(int i) {
        Random random = new Random();

        return random.nextInt(i+ 1);
    }


    private void prevThreadbtn() {
        prevThread= new Thread(){
            @Override
            public void run() {
                super.run();
                prevbtn.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        prevbtnClicked();
                    }
                });

            }
        };
        prevThread.start();
    }

    private void prevbtnClicked() {
        if (mMediaplayer.isPlaying()){
            mMediaplayer.stop();
            mMediaplayer.release();
            position=((position-1) < 0 ? (macam.size() -1 ): (position - 1));
            int cardhelper= macam.get(position).getAudio();
            mMediaplayer= MediaPlayer.create(getApplicationContext(), cardhelper);
            song_name.setText(macam.get(position).getSurah());
            seekBar.setMax(mMediaplayer.getDuration()/1000);
            Player.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    if (mMediaplayer!=null){
                        int mCurrentposition = mMediaplayer.getCurrentPosition()/1000;
                        seekBar.setProgress(mCurrentposition);


                    }


                    handler.postDelayed(this, 1000);
                }
            });
            mMediaplayer.setOnCompletionListener(this);
            playpausebtn.setBackgroundResource(R.drawable.ic_baseline_pause_24);
            mMediaplayer.start();

        }else {
            mMediaplayer.stop();
            mMediaplayer.release();
            position=((position-1) < 0 ? (macam.size() -1 ): (position - 1));
            int cardhelper= macam.get(position).getAudio();
            mMediaplayer= MediaPlayer.create(getApplicationContext(), cardhelper);
            song_name.setText(macam.get(position).getSurah());
            seekBar.setMax(mMediaplayer.getDuration()/1000);
            Player.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    if (mMediaplayer!=null){
                        int mCurrentposition = mMediaplayer.getCurrentPosition()/1000;
                        seekBar.setProgress(mCurrentposition);


                    }


                    handler.postDelayed(this, 1000);
                }
            });
            mMediaplayer.setOnCompletionListener(this);
            playpausebtn.setBackgroundResource(R.drawable.ic_play);
        }
    }

    private String formattedTime(int mCurrentposition) {
        String totalout = "";
        String totalNew = "";
        String seconds = String.valueOf(mCurrentposition % 60);
        String minutes = String.valueOf(mCurrentposition / 60);

        totalout = minutes + ":" + seconds;
        totalNew = minutes + ":" + "0" + seconds;
        if (seconds.length() == 1){
            return totalNew;
        }

        else {
            return totalout;
        }
    }

    private void getIntentMethod() {
       position= getIntent().getIntExtra("position",-1);
        macam=cardalbums;
        macam=malbie;

        if (macam!=null ){
            playpausebtn.setImageResource(R.drawable.ic_baseline_pause_24);
            currentItem = cardalbums.get(position);
            currentItem = malbie.get(position);
        }
        if (mMediaplayer!=null){
            mMediaplayer.stop();
            mMediaplayer.release();
            mMediaplayer= MediaPlayer.create(getApplicationContext(),currentItem.getAudio());
            mMediaplayer.start();

        }else{
            mMediaplayer= MediaPlayer.create(getApplicationContext(),currentItem.getAudio());
            mMediaplayer.start();
        }

        seekBar.setMax(mMediaplayer.getDuration()/ 1000);




    }

    private void initViews() {
        song_name=findViewById(R.id.textTitle);
        duration_played=findViewById(R.id.textCurrentTime);
        total_duration=findViewById(R.id.textTotalTime);
        nextbtn=findViewById(R.id.buttonNext);
        prevbtn=findViewById(R.id.buttonPrevious);
        shufflebtn=findViewById(R.id.buttonShuffle);
        repeatbtn=findViewById(R.id.buttonRepeat);
        seekBar=findViewById(R.id.playerSeekbar);
        playpausebtn=findViewById(R.id.buttonPlay);

    }

    @Override
    public void onCompletion(MediaPlayer mp) {
        nextbtnClicked();
        if (mMediaplayer!=null){
            int cardhelper= macam.get(position).getAudio();
            mMediaplayer= MediaPlayer.create(getApplicationContext(), cardhelper);
            mMediaplayer.start();
            mMediaplayer.setOnCompletionListener(this);
        }
    }


}

Класс адаптера фрагмента

public class musicadapter extends RecyclerView.Adapter<musicadapter.cardViewHolder>implements Filterable {

     List<cardhelper> mcardalbums;

    List<cardhelper>filteredData;
    Filter filter;
    int audio;
    int position;
    Context mcontext;


     musicadapter(Context mcontext, List<cardhelper> mcardalbums) {
        this.mcardalbums = mcardalbums;
        this.mcontext=mcontext;
        this.filteredData=mcardalbums;

    }



    @Override
    public cardViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View v= LayoutInflater.from(parent.getContext()).inflate(R.layout.card_design, parent, false);
        cardViewHolder cvh= new cardViewHolder(v);
        return cvh;
    }

    @Override
    public void onBindViewHolder(@NonNull cardViewHolder holder, int position) {
        cardhelper currentItem = mcardalbums.get(position);

        holder.surah.setText(currentItem.getSurah());
        holder.count.setText(currentItem.getNumOfSongs());
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(mcontext, Player.class);
                intent.putExtra("position", position);
                mcontext.startActivity(intent);
            }
        });



    }


    @Override
    public int getItemCount() {
        return mcardalbums.size();
    }

    @Override
    public Filter getFilter() {
        return new Filter() {
            @SuppressWarnings("unchecked")
            @Override
            protected void publishResults(CharSequence constraint, FilterResults results) {
                mcardalbums = (List<cardhelper>) results.values;
                notifyDataSetChanged();
            }

            @Override
            protected FilterResults performFiltering(CharSequence constraint) {
                List<cardhelper> filteredResults = null;
                if (constraint.length() == 0) {
                    filteredResults = filteredData;
                } else {
                    filteredResults = getFilteredResults(constraint.toString().toLowerCase());
                }

                FilterResults results = new FilterResults();
                results.values = filteredResults;

                return results;
            }
        };
    }

    protected List<cardhelper> getFilteredResults(String constraint) {
        List<cardhelper> results = new ArrayList<>();

        for (cardhelper item : filteredData) {
            if (item.getSurah().toLowerCase().contains(constraint)) {
                results.add(item);
            }
        }
        return results;
    }



    public static class cardViewHolder extends RecyclerView.ViewHolder {


         TextView count,surah;

        @SuppressLint("ResourceType")
        public cardViewHolder(View itemView) {
            super(itemView);

            count = itemView.findViewById(R.id.card_count);
            surah = itemView.findViewById(R.id.card_surah);


        }
    }


}