Android Audio SeekBar

Question

Próbuję stworzyć coś, w którym odtwarzany jest pojedynczy plik audio i można go wstrzymać i manipulować za pomocą paska postępu/wyszukiwania. Chcę, aby obraz zajmował większość ekranu, a następnie przycisk pauzy odtwarzania w lewym dolnym rogu i pasek po prawej stronie przycisku. Wszystko działa pasek wyszukiwania, który nie jest połączeniem z dźwiękiem. Moje kodowanie paska postępu to prawdopodobnie bałagan, ponieważ jeśli wziąłem go z kilku, które widziałem w Internecie, ale są one w większości mylące dla mnie, ponieważ są one dla aplikacji odtwarzacza muzyki nie do odtwarzania jednego pliku audio.

Czy ktoś mógłby mi pomóc z paskiem postępu? Wszelkie inne wskazówki dotyczące ulepszania mojego programowania będą również świetne.

(jestem bardzo nowy android i programowania tylko ostrzec)

To mój Java:

MediaPlayer mediaPlayer; 
    Button buttonPlayPause; 
    ImageView Image; 
    SeekBar seekBar; 

    private int stateMediaPlayer; 
    private final int stateMP_NotStarter = 0; 
    private final int stateMP_Playing = 1; 
    private final int stateMP_Pausing = 2; 
    int total; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.playerwere); 

     Image = (ImageView) findViewById(R.id.pdfview); 
     Image.setImageResource(R.drawable.wereim); 

     seekBar = (SeekBar) findViewById(R.id.seekBar); 

     buttonPlayPause = (Button) findViewById(R.id.playpause); 

     buttonPlayPause.setOnClickListener(buttonPlayPauseOnClickListener); 

     seekBar.setOnSeekBarChangeListener(seekBarOnSeekListener); 

     initMediaPlayer(); 

     Thread currentThread = new Thread(this); 
     currentThread.start(); 

    } 

    private void initMediaPlayer() { 
     mediaPlayer = new MediaPlayer(); 
     mediaPlayer = MediaPlayer.create(were.this, R.raw.were); 
     stateMediaPlayer = stateMP_NotStarter; 

     mediaPlayer.setOnPreparedListener(new OnPreparedListener() { 

      @Override 
      public void onPrepared(MediaPlayer arg0) { 
       // TODO Auto-generated method stub 
       total = mediaPlayer.getDuration(); 
      } 

     }); 

     seekBar.setProgress(0); 
     seekBar.setMax(total); 
    } 

    Button.OnClickListener buttonPlayPauseOnClickListener = new Button.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      switch (stateMediaPlayer) { 
      case stateMP_NotStarter: 
       mediaPlayer.start(); 
    buttonPlayPause.setBackgroundResource(android.R.drawable.ic_media_pause); 
       stateMediaPlayer = stateMP_Playing; 
       break; 
      case stateMP_Playing: 
       mediaPlayer.pause(); 
    buttonPlayPause.setBackgroundResource(android.R.drawable.ic_media_play); 
       stateMediaPlayer = stateMP_Pausing; 
       break; 
      case stateMP_Pausing: 
       mediaPlayer.start(); 
    buttonPlayPause.setBackgroundResource(android.R.drawable.ic_media_pause); 
       stateMediaPlayer = stateMP_Playing; 
       break; 
      } 

     } 
    }; 

    SeekBar.OnSeekBarChangeListener seekBarOnSeekListener = new SeekBar.OnSeekBarChangeListener() { 

     @Override 
     public void onStopTrackingTouch(SeekBar seekBar) { 
      // TODO Auto-generated method stub 

     } 

     @Override 
     public void onStartTrackingTouch(SeekBar seekBar) { 
      // TODO Auto-generated method stub 

     } 

     @Override 
     public void onProgressChanged(SeekBar seekBar, int progress, 
       boolean fromUser) { 
      // TODO Auto-generated method stub 

      if (fromUser) { 
       mediaPlayer.seekTo(progress); 
       seekBar.setProgress(progress); 
      } 

     } 
    }; 

    @Override 
    public void run() { 
     // TODO Auto-generated method stub 

     try { 
      while (mediaPlayer != null) { 
       int currentPosition = mediaPlayer.getCurrentPosition(); 
       Message msg = new Message(); 
       msg.what = currentPosition; 
       threadHandler.sendMessage(msg); 
      } 
      Thread.sleep(100); 
     } catch (InterruptedException e) { 
      e.printStackTrace(); 
     } 
    } 

    private Handler threadHandler = new Handler() { 
     public void handleMessage(Message msg) { 
      seekBar.setProgress(msg.what); 
     } 
    }; 

I to moja java było wcześniej próbowałem użyć SeekBar:

MediaPlayer mediaPlayer; 
    Button buttonPlayPause; 
    ImageView Image; 

    private int stateMediaPlayer; 
    private final int stateMP_NotStarter = 0; 
    private final int stateMP_Playing = 1; 
    private final int stateMP_Pausing = 2; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.playerwere); 

     Image = (ImageView) findViewById(R.id.pdfview); 
     Image.setImageResource(R.drawable.wereim); 

     buttonPlayPause = (Button) findViewById(R.id.playpause); 

     buttonPlayPause.setOnClickListener(buttonPlayPauseOnClickListener); 

     initMediaPlayer(); 

    } 

    private void initMediaPlayer() { 
     mediaPlayer = new MediaPlayer(); 
     mediaPlayer = MediaPlayer.create(were.this, R.raw.were); 
     stateMediaPlayer = stateMP_NotStarter; 
    } 

    Button.OnClickListener buttonPlayPauseOnClickListener = new Button.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      switch (stateMediaPlayer) { 
      case stateMP_NotStarter: 
       mediaPlayer.start(); 
    buttonPlayPause.setBackgroundResource(android.R.drawable.ic_media_pause); 
       stateMediaPlayer = stateMP_Playing; 
       break; 
      case stateMP_Playing: 
       mediaPlayer.pause(); 
    buttonPlayPause.setBackgroundResource(android.R.drawable.ic_media_play); 
       stateMediaPlayer = stateMP_Pausing; 
       break; 
      case stateMP_Pausing: 
       mediaPlayer.start(); 
    buttonPlayPause.setBackgroundResource(android.R.drawable.ic_media_pause); 
       stateMediaPlayer = stateMP_Playing; 
       break; 
      } 

     } 
    }; 

to jest moja odpowiedź java po Vishal Vaja za:

MediaPlayer mediaPlayer; 
    Button buttonPlayPause; 
    ImageView Image; 
    SeekBar seekBar; 
    Handler handler; 

    private int stateMediaPlayer; 
    private final int stateMP_NotStarter = 0; 
    private final int stateMP_Playing = 1; 
    private final int stateMP_Pausing = 2; 
    private int mediaPos; 
    private int mediaMax; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.playerwere); 

     Image = (ImageView) findViewById(R.id.pdfview); 

     Image.setImageResource(R.drawable.wereim); 

     seekBar = (SeekBar) findViewById(R.id.seekBar); 

     buttonPlayPause = (Button) findViewById(R.id.playpause); 

     buttonPlayPause.setOnClickListener(buttonPlayPauseOnClickListener); 

     seekBar.setOnSeekBarChangeListener(seekBarOnSeekChangeListener); 

     initMediaPlayer(); 

    } 

    private void initMediaPlayer() { 
     handler = new Handler(); 
     mediaPlayer = new MediaPlayer(); 
     mediaPlayer = MediaPlayer.create(were.this, R.raw.were); 
     stateMediaPlayer = stateMP_NotStarter; 
     mediaPos = mediaPlayer.getCurrentPosition(); 

     mediaMax = mediaPlayer.getDuration(); 

     seekBar.setMax(mediaMax); // Set the Maximum range of the 
            // seekBar.setProgress(mediaPos);// set 
            // current progress to song's 

     handler.removeCallbacks(moveSeekBarThread); 
     handler.postDelayed(moveSeekBarThread, 100); 
    } 

    private Runnable moveSeekBarThread = new Runnable() { 

     public void run() { 
      if (mediaPlayer.isPlaying()) { 

       int mediaPos_new = mediaPlayer.getCurrentPosition(); 
       int mediaMax_new = mediaPlayer.getDuration(); 
       seekBar.setMax(mediaMax_new); 
       seekBar.setProgress(mediaPos_new); 

       handler.postDelayed(this, 100); // Looping the thread after 0.1 
               // second 
               // seconds 
      } 
     } 
    }; 

    Button.OnClickListener buttonPlayPauseOnClickListener = new Button.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      switch (stateMediaPlayer) { 
      case stateMP_NotStarter: 
       mediaPlayer.start(); 
       buttonPlayPause 
         .setBackgroundResource(android.R.drawable.ic_media_pause); 
       stateMediaPlayer = stateMP_Playing; 
       break; 
      case stateMP_Playing: 
       mediaPlayer.pause(); 
       buttonPlayPause 
         .setBackgroundResource(android.R.drawable.ic_media_play); 
       stateMediaPlayer = stateMP_Pausing; 
       break; 
      case stateMP_Pausing: 
       mediaPlayer.start(); 
       buttonPlayPause 
         .setBackgroundResource(android.R.drawable.ic_media_pause); 
       stateMediaPlayer = stateMP_Playing; 
       break; 
      } 

     } 
    }; 

    SeekBar.OnSeekBarChangeListener seekBarOnSeekChangeListener = new SeekBar.OnSeekBarChangeListener() { 

     @Override 
     public void onStopTrackingTouch(SeekBar seekBar) { 
      // TODO Auto-generated method stub 

     } 

     @Override 
     public void onStartTrackingTouch(SeekBar seekBar) { 
      // TODO Auto-generated method stub 

     } 

     @Override 
     public void onProgressChanged(SeekBar seekBar, int progress, 
       boolean fromUser) { 
      // TODO Auto-generated method stub 

      if (fromUser) { 
       mediaPlayer.seekTo(progress); 
       seekBar.setProgress(progress); 
      } 

     } 
    }; 

Answer 1

Myślę, że to może być praca dla ciebie.

Utwórz jeden wątek, który sprawdzi pozycję piosenkę i przenieść SeekBar tak,

private Runnable moveSeekBarThread = new Runnable() { 

    public void run() { 
     if(mediaPlayer.isplaying){ 

     int mediaPos_new = mediaPlayer.getCurrentPosition(); 
     int mediaMax_new = mediaPlayer.getDuration(); 
     seekBar.setMax(mediaMax_new); 
     seekBar.setProgress(mediaPos_new); 

     handler.postDelayed(this, 100); //Looping the thread after 0.1 second 
             // seconds 
     } 
    } 
}; 

i nazwać ją nić takiego,

mediaPos = mediaPlayer.getCurrentPosition(); 
    mediaMax = mediaPlayer.getDuration(); 

    seekBar.setMax(mediaMax); // Set the Maximum range of the 
    seekBar.setProgress(mediaPos);// set current progress to song's 

    handler.removeCallbacks(moveSeekBarThread); 
    handler.postDelayed(moveSeekBarThread, 100); 

Answer 2

public class DetailMusic rozciąga narzędzi aktywny View.OnClickListener {

SeekBar seek_bar; 
Button play_button, pause_button; 
TextView text_shown; 
Handler seekHandler = new Handler(); 
Bundle bundle = new Bundle(); 
String Musicnames; 
int mediaMax; 
int mediaPos = 0; 
MediaPlayer mp = new MediaPlayer(); 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_detailmusic); 
    bundle = getIntent().getExtras(); 
    if (bundle != null) { 
     Musicnames = bundle.getString("musicnbames"); 
     System.out.println("++++++++++++++++++++++++++++++++" + Musicnames); 
     Log.e("musicfoldername", Musicnames); 
    } 
    seek_bar = (SeekBar) findViewById(R.id.seek_bar); 
    play_button = (Button) findViewById(R.id.play_button); 
    pause_button = (Button) findViewById(R.id.pause_button); 
    text_shown = (TextView) findViewById(R.id.text_shown); 
    play_button.setOnClickListener(this); 
    pause_button.setOnClickListener(this); 
    //seekUpdation(); 

    String PATH_TO_FILE = Musicnames; 
    // MediaPlayer mp = new MediaPlayer(); 
    try { 
     mp.setDataSource(PATH_TO_FILE); 
     mp.prepare(); 
    } catch (IOException e) { 

    } 
    mp.start(); 
    seek_bar.setMax(mp.getDuration()); 

    try { 
     mp.setDataSource(Musicnames); 
    } catch (IllegalArgumentException e) { 
     // TODO Auto-generated catch block 
     e.printStackTrace(); 
    } catch (SecurityException e) { 
     // TODO Auto-generated catch block 
     e.printStackTrace(); 
    } catch (IllegalStateException e) { 
     // TODO Auto-generated catch block 
     e.printStackTrace(); 
    } catch (IOException e) { 
     // TODO Auto-generated catch block 
     e.printStackTrace(); 
    } 
    mediaPos = mp.getCurrentPosition(); 
    mediaMax = mp.getDuration(); 
    seek_bar.setMax(mediaMax); // Set the Maximum range of the 
    seek_bar.setProgress(mediaPos);// set current progress to song's 
    seekHandler.removeCallbacks(moveSeekBarThread); 
    seekHandler.postDelayed(moveSeekBarThread, 100); //cal the thread after 100 milliseconds 

} 

private Runnable moveSeekBarThread = new Runnable() { 
    public void run() { 
     if (mp.isPlaying()) { 
      int mediaPos_new = mp.getCurrentPosition(); 
      int mediaMax_new = mp.getDuration(); 
      seek_bar.setMax(mediaMax_new); 
      seek_bar.setProgress(mediaPos_new); 
      seekHandler.postDelayed(this, 100); //Looping the thread after 0.1 second 
     } 
    } 
}; 


@Override 
public void onClick(View view) { 
    switch (view.getId()) { 
     case R.id.play_button: 
      mp.reset(); 

// mp.start(); text_shown.setText ("Odtwarzanie ...");

  break; 
     case R.id.pause_button: 
      mp.pause(); 
      text_shown.setText("Paused..."); 
    } 
} 

}