Android Audio SeekBar

Question

Ich versuche etwas zu erstellen, wo eine einzelne Audiodatei abgespielt wird und mit einer Fortschritts-/Suchleiste angehalten und bearbeitet werden kann. Ich möchte ein Bild, das den größten Teil des Bildschirms einnimmt, und dann eine Play-Pause-Schaltfläche links unten und die Leiste rechts neben der Schaltfläche. Alles funktioniert die Suchleiste, die keine Verbindung zum Audio ist. Meine Progress Bar-Codierung ist wahrscheinlich ein Chaos, wenn es von mehreren ich im Internet gesehen habe, aber sie sind für mich größtenteils verwirrend, da sie für Musik-Player-Apps nicht für das Abspielen einer einzelnen Audiodatei sind.

Könnte mir bitte jemand mit dem Fortschrittsbalken helfen? Alle anderen Tipps zur Verbesserung meiner Programmierung wäre auch toll.

(Ich bin sehr neu für Android und Programmierung einfach zu warnen)

Das ist mein 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); 
     } 
    }; 

Und das ist, was mein Java war, bevor ich die seekBar zu verwenden versucht:

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; 
      } 

     } 
    }; 

Dies ist mein Java nach Vishal Vaja Antwort:

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

Ich denke, das kann Arbeit für Sie sein.

Erstellen eines Thread, der Song-Position überprüfen und wird wie folgt bewegen seekbar,

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 
     } 
    } 
}; 

Und wie diese, die Thread nennen,

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 erweitert Aktivität Geräte 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 ("Playing ...");

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

}