Как удалить дубликаты в Seekbar?

Question

Я делаю приложение Musi c Player. Я испытываю некоторые проблемы в отношении Seekbar. Seekbar показывает 2 превью. Один движется вместе с песней, а другой движется туда, куда мы нажимаем на панели. Я хочу иметь один большой палец, который перемещается вместе с песней, и когда щелкает панель, большой палец перемещается в эту позицию, и песня переходит от желаемой (нажатой) позиции.

Изображение музыки c игрок:

Код: MainActivity. java

'' '

package com.example.music_app;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.AudioManager;
import android.media.MediaMetadataRetriever;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import java.util.concurrent.TimeUnit;


public class MainActivity extends Activity {

private Button b1, b2, b3, b4,btnopen;
private ImageView iv;
private MediaPlayer mediaPlayer;
private double startTime = 0;
private double finalTime = 0;
private Handler myHandler = new Handler();
private int forwardTime = 5000;
private int backwardTime = 5000;
private SeekBar seekbar;
private TextView tx1, tx2, tx3;
public static int oneTimeOnly = 0;
Intent intent;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    b1 = (Button) findViewById(R.id.button);
    b2 = (Button) findViewById(R.id.button2);
    b3 = (Button) findViewById(R.id.button3);
    b4 = (Button) findViewById(R.id.button4);
    btnopen = (Button)findViewById(R.id.button_open);

    //volume buttons
    Button upButton = (Button) findViewById(R.id.upButton);
    Button downButton = (Button) findViewById(R.id.downButton);
    final AudioManager audioManager = (AudioManager) getApplicationContext().getSystemService(Context.AUDIO_SERVICE);

    iv = (ImageView) findViewById(R.id.imageView);
    tx1 = (TextView) findViewById(R.id.textView2);
    tx2 = (TextView) findViewById(R.id.textView3);
    tx3 = (TextView) findViewById(R.id.textView4);
    tx3.setText("Select a song");
    mediaPlayer = MediaPlayer.create(this, R.raw.song);
    seekbar = (SeekBar) findViewById(R.id.seekBar);
    seekbar.setClickable(false);
    seekbar.setSaveEnabled(true);

    b2.setEnabled(false);
    b3.setEnabled(false);

    //open file button
    btnopen.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            intent = new Intent(Intent.ACTION_GET_CONTENT);
            intent.setType("*/*");
            startActivityForResult(intent, 4);

        }
    });

    //play button
    b3.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(), "Playing sound", Toast.LENGTH_SHORT).show();
            mediaPlayer.start();
            finalTime = mediaPlayer.getDuration();
            startTime = mediaPlayer.getCurrentPosition();
            if (oneTimeOnly == 0) {
                seekbar.setMax((int) finalTime);
                oneTimeOnly = 1;
            }
            tx2.setText(String.format("%d min, %d sec",
                    TimeUnit.MILLISECONDS.toMinutes((long) finalTime),
                    TimeUnit.MILLISECONDS.toSeconds((long) finalTime) -
                    TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes((long) finalTime)))
            );
            tx1.setText(String.format("%d min, %d sec",
                    TimeUnit.MILLISECONDS.toMinutes((long) startTime),
                    TimeUnit.MILLISECONDS.toSeconds((long) startTime) -
                    TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes((long) startTime)))
            );
            seekbar.setProgress((int) startTime);
            myHandler.postDelayed( UpdateSongTime, 100);
            b2.setEnabled(true);
            b3.setEnabled(false);
        }
    });

    //pause button
    b2.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(), "Pausing sound", Toast.LENGTH_SHORT).show();
            mediaPlayer.pause();
            b2.setEnabled(false);
            b3.setEnabled(true);
        }
    });

    //forward button
    b1.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            int temp = (int) startTime;
            if ((temp + forwardTime) <= finalTime) {
                startTime = startTime + forwardTime;
                mediaPlayer.seekTo((int) startTime);
                Toast.makeText(getApplicationContext(), "You have Jumped forward 5 seconds", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(getApplicationContext(), "Cannot jump forward 5 seconds", Toast.LENGTH_SHORT).show();
            }
        }
    });

    //backward button
    b4.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            int temp = (int) startTime;
            if ((temp - backwardTime) > 0) {
                startTime = startTime - backwardTime;
                mediaPlayer.seekTo((int) startTime);
                Toast.makeText(getApplicationContext(), "You have Jumped backward 5 seconds", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(getApplicationContext(), "Cannot jump backward 5 seconds", Toast.LENGTH_SHORT).show();
            }

        }
    });

    //handle volume
    upButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            //To increase media player volume
            audioManager.adjustVolume(AudioManager.ADJUST_RAISE, AudioManager.FLAG_PLAY_SOUND);
        }
    });
    downButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            //To decrease media player volume
            audioManager.adjustVolume(AudioManager.ADJUST_LOWER, AudioManager.FLAG_PLAY_SOUND);
        }
    });

    //when seekbar is moved
    /*
    seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
        @Override
        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

        }

        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {

            if (mediaPlayer != null && mediaPlayer.isPlaying()  ) {
                mediaPlayer.pause();
                mediaPlayer.seekTo(seekBar.getProgress());
                Toast.makeText(MainActivity.this,"Progress value(onStart):" + Integer.toString( seekBar.getProgress() ),Toast.LENGTH_SHORT).show();
                mediaPlayer.start();
            }
        }

        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {

        }
    });
    */


}
private Runnable UpdateSongTime = new Runnable() {
    public void run() {
        startTime = mediaPlayer.getCurrentPosition();
        tx1.setText(String.format("%d min, %d sec",
                TimeUnit.MILLISECONDS.toMinutes((long) startTime),
                TimeUnit.MILLISECONDS.toSeconds((long) startTime) -
                        TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.
                                toMinutes((long) startTime)))
        );
        seekbar.setProgress((int) startTime);
        myHandler.postDelayed(this, 100);
    }
};


protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // TODO Auto-generated method stub

    try {
        Uri returnUri = data.getData();
        switch (requestCode) {
            case 4: //open file

                if (resultCode == RESULT_OK) {
                    String PathHolder = returnUri.getPath();

                    if (PathHolder.contains("audio")) {

                        Cursor cursor = null;
                        String displayName = null;

                        MediaMetadataRetriever mmr = new MediaMetadataRetriever();
                        byte[] rawArt;
                        Bitmap art;
                        BitmapFactory.Options bfo = new BitmapFactory.Options();
                        mmr.setDataSource(getApplicationContext(), returnUri);
                        rawArt = mmr.getEmbeddedPicture();

                        if (rawArt != null) {
                            Toast.makeText(MainActivity.this, rawArt.toString(), Toast.LENGTH_LONG).show();
                            art = BitmapFactory.decodeByteArray(rawArt, 0, rawArt.length, bfo);
                            iv.setImageBitmap(Bitmap.createScaledBitmap(art, iv.getWidth(), iv.getHeight(), false));
                        } else {
                            Toast.makeText(MainActivity.this, "not-exists-thumbnail", Toast.LENGTH_LONG).show();
                            iv.setBackgroundResource(R.drawable.music);
                        }

                        try {
                            cursor = getApplicationContext().getContentResolver().query(returnUri, null, null, null, null);
                            if (cursor != null && cursor.moveToFirst()) {
                                displayName = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
                                //Toast.makeText(MainActivity.this, displayName , Toast.LENGTH_LONG).show();
                            }
                        } finally {
                            cursor.close();
                        }


                        if (mediaPlayer.isPlaying()) {
                            mediaPlayer.pause();
                        }
                        mediaPlayer = MediaPlayer.create(this, returnUri);
                        //mediaPlayer.start();

                        String songName = displayName.substring(displayName.lastIndexOf("/") + 1);
                        if (songName.length() > 10)
                            songName = songName.substring(0, 10);
                        tx3.setText(songName);

                        Toast.makeText(MainActivity.this, "audio file", Toast.LENGTH_LONG).show();

                        //b2.setEnabled(false);
                        //b3.setEnabled(true);
                        b3.performClick();

                    } else    //not-audio file
                    {
                        Toast.makeText(MainActivity.this, "Not an audio file", Toast.LENGTH_LONG).show();
                    }

                }
                break;

        }

    }//try
    catch (Exception e)
    {
        Toast.makeText(getApplicationContext(), "Error opening file!", Toast.LENGTH_SHORT).show();
    }

}

}

' ''

Макет: Activity_main. xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

<TextView
    android:id="@+id/textview"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:text="Music Player"
    android:textSize="35dp" />
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Media player"
    android:id="@+id/textView"
    android:layout_below="@+id/textview"
    android:layout_centerHorizontal="true"
    android:textColor="#ff7aff24"
    android:textSize="35dp" />
<ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/imageView"
    android:layout_below="@+id/textView"
    android:layout_centerHorizontal="true"
    android:src="@drawable/music"/>

<Button
    android:id="@+id/button4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@id/button2"
    android:layout_alignTop="@+id/button3"
    android:layout_alignParentLeft="true"
    android:layout_toEndOf="@+id/button3"
    android:text="@string/rewind" />

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/pause"
    android:id="@+id/button2"
    android:layout_alignParentBottom="true"
    android:layout_alignLeft="@+id/imageView"
    android:layout_alignStart="@+id/imageView" />

<Button
    android:id="@+id/button3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignTop="@+id/button2"
    android:layout_toEndOf="@+id/button2"
    android:layout_toRightOf="@+id/button2"
    android:text="@string/play" />

<Button
    android:id="@+id/button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentEnd="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentBottom="true"
    android:text="@string/forward" />

<SeekBar
    android:id="@+id/seekBar"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/button"
    android:layout_alignStart="@+id/textview"
    android:layout_alignLeft="@+id/textview"
    android:layout_alignEnd="@+id/textview"
    android:layout_alignRight="@+id/textview" />

<TextView
    android:id="@+id/textView2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/seekBar"
    android:layout_toStartOf="@+id/textView"
    android:layout_toLeftOf="@+id/textView4"
    android:text="0 min, 0 sec"
    android:textAppearance="?android:attr/textAppearanceSmall" />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:text="Medium Text"
    android:id="@+id/textView4"
    android:layout_alignBaseline="@+id/textView2"
    android:layout_alignBottom="@+id/textView2"
    android:layout_centerHorizontal="true" />

<TextView
    android:id="@+id/textView3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/seekBar"
    android:layout_alignEnd="@+id/button4"
    android:layout_alignParentRight="true"
    android:text="0 min, 0 sec"
    android:textAppearance="?android:attr/textAppearanceSmall" />

<Button
    android:id="@+id/downButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@id/textView2"
    android:layout_alignParentLeft="true"
    android:gravity="center_horizontal|center_vertical"
    android:text="-" />

<Button
    android:id="@+id/upButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@id/textView3"
    android:layout_alignParentRight="true"
    android:layout_marginBottom="4dp"
    android:gravity="center_horizontal|center_vertical"
    android:text="+" />

<Button
    android:id="@+id/button_open"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@id/downButton"
    android:text="open file ♪♫" />

<SeekBar
    android:id="@+id/seekBar2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/button"
    android:layout_alignStart="@+id/textview"
    android:layout_alignLeft="@+id/textview"
    android:layout_alignEnd="@+id/textview"
    android:layout_alignRight="@+id/textview" />