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空指針異常引起

2013-09-24 109 views
-4 
public class HanumanBhajan extends Activity implements SeekBar.OnSeekBarChangeListener{ 
private Handler newHandler = new Handler(); 
private Utilities utils; 
private SeekBar songProgressBar; 

PhoneStateListener phoneStateListener = null; 
private ImageButton btnPlay = null; 
private ImageButton btnRepeat = null; 
private ImageButton btnStop = null; 
MediaPlayer mp = null; 
private boolean isRepeat = false; 
private TextView txtSong = null; 
public int currentimageindex=0; 
private TextView txtCurrenSongDuration = null; 
private TextView txtTotalDuration = null; 
private boolean mpState = true; 
Timer timer = null; 
TimerTask task = null; 
ImageView slidingimage = null; 
private String path = null; 
long milliseconds = 0; 

HanumanBhajanList bhajanNo = new HanumanBhajanList(); 
private int[] IMAGE_IDS = { 
     R.drawable.hanuman1, 
     R.drawable.hanuman2, 
     R.drawable.hanuman3, 
     R.drawable.hanuman4, 
     R.drawable.hanuman5, 
     R.drawable.hanuman6, 
     R.drawable.hanuman7, 
     R.drawable.hanuman8, 
     R.drawable.hanuman9, 
     R.drawable.hanuman10 
    }; 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    this.setContentView(R.layout.aartilayout); 

    final Handler mHandler = new Handler(); 
    final Runnable mUpdateResults = new Runnable() { 
     public void run() { 
      AnimateandSlideShow(); 
     } 
    }; 
    int delay = 1000; // delay for 1 sec. 

    int period = 8000; // repeat every 4 sec. 

    Timer timer = new Timer(); 

    timer.scheduleAtFixedRate(new TimerTask() { 

    public void run() { 

     mHandler.post(mUpdateResults); 

    } 

    }, delay, period); 


// All player buttons 
    btnPlay = (ImageButton) findViewById(R.id.btnPlay); 
    btnStop = (ImageButton) findViewById(R.id.btnStop); 
    btnRepeat = (ImageButton) findViewById(R.id.btnRepeat); 

    txtCurrenSongDuration = (TextView) findViewById(R.id.songCurrentDurationLabel); 
    txtTotalDuration = (TextView) findViewById(R.id.songTotalDurationLabel); 

    if(bhajanNo.detailNo == 0){ 
     txtSong = (TextView) findViewById(R.id.songTitle); 
     txtSong.setText("Hey Dukh Bhanjan"); 
     path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan0.mp3"; 
     File f = new File(path); 
     Uri uri = Uri.fromFile(f); 
     mp = MediaPlayer.create(HanumanBhajan.this, uri); 
    }else if(bhajanNo.detailNo == 1){ 
     txtSong = (TextView) findViewById(R.id.songTitle); 
     txtSong.setText("Aaj Mangalvar Hai"); 
     path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan1.mp3"; 
     File f = new File(path); 
     Uri uri = Uri.fromFile(f); 
     mp = MediaPlayer.create(HanumanBhajan.this, uri); 
    }else if(bhajanNo.detailNo == 2){ 
     txtSong = (TextView) findViewById(R.id.songTitle); 
     txtSong.setText("Jai Jai Jai Hanuman"); 
     path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan2.mp3"; 
     File f = new File(path); 
     Uri uri = Uri.fromFile(f); 
     mp = MediaPlayer.create(HanumanBhajan.this, uri); 
    }else if(bhajanNo.detailNo == 3){ 
     txtSong = (TextView) findViewById(R.id.songTitle); 
     txtSong.setText("Mangal Moorti Maruti"); 
     path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan3.mp3"; 
     File f = new File(path); 
     Uri uri = Uri.fromFile(f); 
     mp = MediaPlayer.create(HanumanBhajan.this, uri); 
    } 
    songProgressBar = (SeekBar) findViewById(R.id.songProgressBar); 
    songProgressBar.setOnSeekBarChangeListener(this); 
    utils = new Utilities(); 
    songProgressBar.setProgress(0); 
    songProgressBar.setMax(100); 
    updateProgressBar(); 
    /* final Handler mHandler1 = new Handler(); 
    final Runnable mUpdateResults1 = new Runnable() { 
     public void run() { 

        updateTime(mp); 


     } 
    }; 
    int delay1 = 0; // delay for 0 sec. 

    int period1 = 1000; // repeat every 1 sec. 

    Timer timer1 = new Timer(); 

    timer1.scheduleAtFixedRate(new TimerTask() { 

    public void run() { 

     mHandler1.post(mUpdateResults1); 

    } 

    }, delay1, period1);*/ 

    btnPlay.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      mp.setOnCompletionListener(new OnCompletionListener() { 


       @Override 
       public void onCompletion(MediaPlayer arg0) { 
        // TODO Auto-generated method stub 
        if(isRepeat){ 
         // repeat is on play same song again 
         //Toast.makeText(getApplicationContext(), "Repeat is ON", Toast.LENGTH_SHORT).show(); 
         //txtCount = (TextView) findViewById(R.id.textView1); 
         //mp.reset(); 
         //mp = MediaPlayer.create(ShivaAarti.this, R.raw.shivaarti); 
         //x=0; 
         mp.start(); 
         btnPlay.setImageResource(R.drawable.btn_pause); 
         //count++; 
         //String str = "Count: " + count; 
         //txtCount.setText("Count: " + count); 


        }else{ 
         if(mp!=null){ 
          //x=0; 
          mp.seekTo(0); 
          btnPlay.setImageResource(R.drawable.btn_play); 
         } 

        } 
       } 
      }); 
      if(mp.isPlaying()){ 
       if(mp!=null){ 
        mp.pause(); 
        //x = mp.getCurrentPosition(); 
        // Changing button image to play button 
        btnPlay.setImageResource(R.drawable.btn_play); 
       } 
      }else{ 
       // Resume song 
       if(mp!=null){ 
        //mp.seekTo(x); 
        mp.start(); 
        // Changing button image to pause button 
        btnPlay.setImageResource(R.drawable.btn_pause); 
       } 
      } 


    }}); 
    btnStop.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      if(mp.isPlaying()){ 
       if(mp!=null){ 
        mp.pause(); 
        mp.seekTo(0); 
        //x=0; 
        //mp.seekTo(x); 
        btnPlay.setImageResource(R.drawable.btn_play); 
        //mp.seekTo(0); 
        //milliseconds = 0; 
       } 
      }else{ 
       //x=0; 
       //mp.seekTo(x); 
       //mp.pause(); 
       mp.seekTo(0); 
       //milliseconds = 0; 
      } 
     }});  

    btnRepeat.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View arg0) { 
      if(isRepeat){ 
       isRepeat = false; 
       Toast.makeText(getApplicationContext(), "Repeat is OFF", Toast.LENGTH_SHORT).show(); 
       btnRepeat.setImageResource(R.drawable.btn_repeat); 
       mp.setLooping(false); 
      }else{ 
       // make repeat to true 
       isRepeat = true; 
       Toast.makeText(getApplicationContext(), "Repeat is ON", Toast.LENGTH_SHORT).show(); 
       mp.setLooping(true); 
       btnRepeat.setImageResource(R.drawable.btn_repeat_focused); 
      } 
     } 
    }); 

    phoneStateListener = new PhoneStateListener() { 
     @Override 
     public void onCallStateChanged(int state, String incomingNumber) { 

      if (state == TelephonyManager.CALL_STATE_RINGING) { 
       if(mp.isPlaying()){ 
       if(mp!=null){ 
        mp.pause(); 
        // Changing button image to play button 
        btnPlay.setImageResource(R.drawable.btn_play); 
       } 
      } 
      } else if(state == TelephonyManager.CALL_STATE_IDLE) { 
       if(mp!=null){ 
        /*mp.seekTo(x); 
        mp.start(); 
        // Changing button image to pause button 
        btnPlay.setImageResource(R.drawable.btn_pause);*/ 
       } 
      } else if(state == TelephonyManager.CALL_STATE_OFFHOOK) { 
       if(mp!=null){ 
        mp.pause(); 
        // Changing button image to play button 
        btnPlay.setImageResource(R.drawable.btn_play); 
       } 
      } 
      super.onCallStateChanged(state, incomingNumber); 
     } 
    }; 
    TelephonyManager mgr = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); 
    if(mgr != null) { 
     mgr.listen(phoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); 
    } 
} 
public void updateProgressBar() { 
    newHandler.postDelayed(mUpdateTimeTask, 100); 
} 
private Runnable mUpdateTimeTask = new Runnable() { 
    public void run() { 
     long currentDuration = 0; 
     long totalDuration=0; 
     try{ 
     if(mpState==true){ 
     totalDuration = mp.getDuration(); 
     } 
     }catch(Exception e){} 
     try{ 
      if(mp!=null&&mpState==true){ 
       currentDuration = mp.getCurrentPosition(); 
      }else{ 
      } 
      }catch (Exception e){ 

      } 
     // Displaying Total Duration time 
     txtTotalDuration.setText(""+utils.milliSecondsToTimer(totalDuration)); 
     // Displaying time completed playing 
     txtCurrenSongDuration.setText(""+utils.milliSecondsToTimer(currentDuration)); 

     // Updating progress bar 
     int progress = (int)(utils.getProgressPercentage(currentDuration, totalDuration)); 
     //Log.d("Progress", ""+progress); 
     songProgressBar.setProgress(progress); 

     // Running this thread after 100 milliseconds 
     newHandler.postDelayed(this, 100); 
    } 
}; 
@Override 
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromTouch) { 

} 
@Override 
public void onStartTrackingTouch(SeekBar seekBar) { 
    // remove message Handler from updating progress bar 
    newHandler.removeCallbacks(mUpdateTimeTask); 
} 
@Override 
public void onStopTrackingTouch(SeekBar seekBar) { 
    newHandler.removeCallbacks(mUpdateTimeTask); 
    int totalDuration = mp.getDuration(); 
    int currentPosition = utils.progressToTimer(seekBar.getProgress(), totalDuration); 

    // forward or backward to certain seconds 
    mp.seekTo(currentPosition); 

    // update timer progress again 
    updateProgressBar(); 
} 
/*private void updateTime(MediaPlayer mp){ 

    try{ 
    if(mp!=null&&mpState==true){ 
     milliseconds = mp.getCurrentPosition(); 

    }else{ 
    } 
    }catch (Exception e){ 

    } 
    String finalTimerString = ""; 
    String secondsString = ""; 

    // Convert total duration into time 
     int hours = (int)(milliseconds/(1000*60*60)); 
     int minutes = (int)(milliseconds % (1000*60*60))/(1000*60); 
     int seconds = (int) ((milliseconds % (1000*60*60)) % (1000*60)/1000); 
     // Add hours if there 
     if(hours > 0){ 
      finalTimerString = hours + ":"; 
     } 

     // Prepending 0 to seconds if it is one digit 
     if(seconds < 10){ 
      secondsString = "0" + seconds; 
     }else{ 
      secondsString = "" + seconds;} 
     if(minutes<10){ 
     finalTimerString = finalTimerString + "0"+ minutes + ":" + secondsString; 
     }else{ 
      finalTimerString = finalTimerString + minutes + ":" + secondsString; 

     } 

     String finalTimerString1 = ""; 
     String secondsString1 = ""; 
     long milliseconds1 = 0; 
     if(mpState==true){ 
      milliseconds1 = mp.getDuration();} 
     // Convert total duration into time 
      int hours1 = (int)(milliseconds1/(1000*60*60)); 
      int minutes1 = (int)(milliseconds1 % (1000*60*60))/(1000*60); 
      int seconds1 = (int) ((milliseconds1 % (1000*60*60)) % (1000*60)/1000); 
      // Add hours if there 
      if(hours1 > 0){ 
       finalTimerString1 = hours1 + ":"; 
      } 

      // Prepending 0 to seconds if it is one digit 
      if(seconds1 < 10){ 
       secondsString1 = "0" + seconds1; 
      }else{ 
       secondsString1 = "" + seconds1;} 
      if(minutes1<10){ 
      finalTimerString1 = finalTimerString1 + "0" + minutes1 + ":" + secondsString1; 
      }else{ 
       finalTimerString1 = finalTimerString1 + minutes1 + ":" + secondsString1; 
      } 

    txtCurrenSongDuration.setText(""+finalTimerString); 

    txtTotalDuration.setText(finalTimerString1); 
}*/ 


private void AnimateandSlideShow() { 

/* slidingimage = (ImageView)findViewById(R.id.ImageView3_Left); 
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]);*/ 
    slidingimage=null; 
    if(slidingimage!=null){ 
    ((BitmapDrawable)slidingimage.getDrawable()).getBitmap().recycle(); 
    slidingimage = (ImageView)findViewById(R.id.ImageView3_Left); 
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]); 
} 
else{ 
    slidingimage = (ImageView)findViewById(R.id.ImageView3_Left); 
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]); 
} 
currentimageindex++; 

Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.fade_in); 

    slidingimage.startAnimation(rotateimage); 

} 

@Override 
public void onBackPressed(){ 

AlertDialog alertbox = new AlertDialog.Builder(this) 
.setMessage("Do you want to exit player?") 
.setPositiveButton("Yes", new DialogInterface.OnClickListener() { 

    // do something when the button is clicked 
    public void onClick(DialogInterface arg0, int arg1) { 
     TelephonyManager mgr = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); 
     if(mgr != null) { 
      mgr.listen(phoneStateListener, PhoneStateListener.LISTEN_NONE); 
     } 
     mpState = false; 
     //mmp.stop(); 
     mp.release(); 
     finish(); 


    } 
}) 
.setNegativeButton("No", new DialogInterface.OnClickListener() { 

    // do something when the button is clicked 
    public void onClick(DialogInterface arg0, int arg1) { 
        } 
}) 
    .show(); 


} 
//Option Menu 
@Override 
public boolean onCreateOptionsMenu(Menu menu) 
{ 
menu.add(1,1,0,"Set as Ringtone"); 
menu.add(1,2,1,"Set as Alarm"); 
menu.add(1,3,2,"Rate this App"); 
menu.add(1,4,3,"Exit"); 
return true; 
} 
//Items selection in Option Menu 
@Override 
public boolean onOptionsItemSelected(MenuItem item) 
{ 
switch(item.getItemId()) 
{ 
case 1: 
    if(item.getTitle().equals("Set as Ringtone")){ 
     if(path != null){ 
      if(bhajanNo.detailNo == 0){ 
      this.runOnUiThread(show_toast); 

      ContentValues values = new ContentValues(); 
      values.put(MediaStore.MediaColumns.DATA, Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan0.mp3"); 
      values.put(MediaStore.MediaColumns.TITLE, "hanumanbhajan0.mp3"); 
      values.put(MediaStore.MediaColumns.SIZE, 5866529); 
      values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3"); 
      values.put(MediaStore.Audio.Media.IS_RINGTONE, true); 

      //Insert it into the database 
      Uri uri = MediaStore.Audio.Media.getContentUriForPath(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan0.mp3"); 
      getContentResolver().delete(uri, MediaStore.MediaColumns.DATA + "=\"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan0.mp3" + "\"", null); 
      Uri newUri = getContentResolver().insert(uri, values); 

      RingtoneManager.setActualDefaultRingtoneUri(
       HanumanBhajan.this, 
       RingtoneManager.TYPE_RINGTONE, 
       newUri); 
      } 
      if(bhajanNo.detailNo == 1){ 
       this.runOnUiThread(show_toast); 

       ContentValues values = new ContentValues(); 
       values.put(MediaStore.MediaColumns.DATA, Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan1.mp3"); 
       values.put(MediaStore.MediaColumns.TITLE, "hanumanbhajan1.mp3"); 
       values.put(MediaStore.MediaColumns.SIZE, 8610706); 
       values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3"); 
       values.put(MediaStore.Audio.Media.IS_RINGTONE, true); 

       //Insert it into the database 
       Uri uri = MediaStore.Audio.Media.getContentUriForPath(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan1.mp3"); 
       getContentResolver().delete(uri, MediaStore.MediaColumns.DATA + "=\"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan1.mp3" + "\"", null); 
       Uri newUri = getContentResolver().insert(uri, values); 

       RingtoneManager.setActualDefaultRingtoneUri(
        HanumanBhajan.this, 
        RingtoneManager.TYPE_RINGTONE, 
        newUri); 
      } 
      if(bhajanNo.detailNo == 2){ 
       this.runOnUiThread(show_toast); 

       ContentValues values = new ContentValues(); 
       values.put(MediaStore.MediaColumns.DATA, Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan2.mp3"); 
       values.put(MediaStore.MediaColumns.TITLE, "hanumanbhajan2.mp3"); 
       values.put(MediaStore.MediaColumns.SIZE, 5160448); 
       values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3"); 
       values.put(MediaStore.Audio.Media.IS_RINGTONE, true); 

       //Insert it into the database 
       Uri uri = MediaStore.Audio.Media.getContentUriForPath(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan2.mp3"); 
       getContentResolver().delete(uri, MediaStore.MediaColumns.DATA + "=\"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan2.mp3" + "\"", null); 
       Uri newUri = getContentResolver().insert(uri, values); 

       RingtoneManager.setActualDefaultRingtoneUri(
        HanumanBhajan.this, 
        RingtoneManager.TYPE_RINGTONE, 
        newUri); 
      } 
      if(bhajanNo.detailNo == 3){ 
       this.runOnUiThread(show_toast); 

       ContentValues values = new ContentValues(); 
       values.put(MediaStore.MediaColumns.DATA, Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan3.mp3"); 
       values.put(MediaStore.MediaColumns.TITLE, "hanumanbhajan3.mp3"); 
       values.put(MediaStore.MediaColumns.SIZE, 4156219); 
       values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3"); 
       values.put(MediaStore.Audio.Media.IS_RINGTONE, true); 

       //Insert it into the database 
       Uri uri = MediaStore.Audio.Media.getContentUriForPath(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan3.mp3"); 
       getContentResolver().delete(uri, MediaStore.MediaColumns.DATA + "=\"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan3.mp3" + "\"", null); 
       Uri newUri = getContentResolver().insert(uri, values); 

       RingtoneManager.setActualDefaultRingtoneUri(
        HanumanBhajan.this, 
        RingtoneManager.TYPE_RINGTONE, 
        newUri); 
      } 
     } 
    } 
     break; 
case 2: 
    if(item.getTitle().equals("Set as Alarm")){ 
     if(path != null){ 
      if(bhajanNo.detailNo == 0){ 
      this.runOnUiThread(show_toast1); 

      ContentValues values = new ContentValues(); 
      values.put(MediaStore.MediaColumns.DATA, Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan0.mp3"); 
      values.put(MediaStore.MediaColumns.TITLE, "hanumanbhajan0.mp3"); 
      values.put(MediaStore.MediaColumns.SIZE, 5866529); 
      values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3"); 
      values.put(MediaStore.Audio.Media.IS_ALARM, true); 

      //Insert it into the database 
      Uri uri = MediaStore.Audio.Media.getContentUriForPath(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan0.mp3"); 
      getContentResolver().delete(uri, MediaStore.MediaColumns.DATA + "=\"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan0.mp3" + "\"", null); 
      Uri newUri = getContentResolver().insert(uri, values); 

      RingtoneManager.setActualDefaultRingtoneUri(
       HanumanBhajan.this, 
       RingtoneManager.TYPE_ALARM, 
       newUri); 
      } 
      if(bhajanNo.detailNo == 1){ 
       this.runOnUiThread(show_toast1); 

       ContentValues values = new ContentValues(); 
       values.put(MediaStore.MediaColumns.DATA, Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan1.mp3"); 
       values.put(MediaStore.MediaColumns.TITLE, "hanumanbhajan1.mp3"); 
       values.put(MediaStore.MediaColumns.SIZE, 8610706); 
       values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3"); 
       values.put(MediaStore.Audio.Media.IS_ALARM, true); 

       //Insert it into the database 
       Uri uri = MediaStore.Audio.Media.getContentUriForPath(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan1.mp3"); 
       getContentResolver().delete(uri, MediaStore.MediaColumns.DATA + "=\"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan1.mp3" + "\"", null); 
       Uri newUri = getContentResolver().insert(uri, values); 

       RingtoneManager.setActualDefaultRingtoneUri(
        HanumanBhajan.this, 
        RingtoneManager.TYPE_ALARM, 
        newUri); 
      } 
      if(bhajanNo.detailNo == 2){ 
       this.runOnUiThread(show_toast1); 

       ContentValues values = new ContentValues(); 
       values.put(MediaStore.MediaColumns.DATA, Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan2.mp3"); 
       values.put(MediaStore.MediaColumns.TITLE, "hanumanbhajan2.mp3"); 
       values.put(MediaStore.MediaColumns.SIZE, 5160448); 
       values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3"); 
       values.put(MediaStore.Audio.Media.IS_ALARM, true); 

       //Insert it into the database 
       Uri uri = MediaStore.Audio.Media.getContentUriForPath(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan2.mp3"); 
       getContentResolver().delete(uri, MediaStore.MediaColumns.DATA + "=\"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan2.mp3" + "\"", null); 
       Uri newUri = getContentResolver().insert(uri, values); 

       RingtoneManager.setActualDefaultRingtoneUri(
        HanumanBhajan.this, 
        RingtoneManager.TYPE_ALARM, 
        newUri); 
      } 
      if(bhajanNo.detailNo == 3){ 
       this.runOnUiThread(show_toast1); 

       ContentValues values = new ContentValues(); 
       values.put(MediaStore.MediaColumns.DATA, Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan3.mp3"); 
       values.put(MediaStore.MediaColumns.TITLE, "hanumanbhajan3.mp3"); 
       values.put(MediaStore.MediaColumns.SIZE, 4156219); 
       values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3"); 
       values.put(MediaStore.Audio.Media.IS_ALARM, true); 

       //Insert it into the database 
       Uri uri = MediaStore.Audio.Media.getContentUriForPath(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan3.mp3"); 
       getContentResolver().delete(uri, MediaStore.MediaColumns.DATA + "=\"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/com.hindubhakti.android/.Hindu Bhakti/hanumanbhajan3.mp3" + "\"", null); 
       Uri newUri = getContentResolver().insert(uri, values); 

       RingtoneManager.setActualDefaultRingtoneUri(
        HanumanBhajan.this, 
        RingtoneManager.TYPE_ALARM, 
        newUri); 
      } 
     } 
    } 
     break; 
case 3: 
    Uri uri = Uri.parse("market://details?id=" + getApplicationContext().getPackageName()); 
    Intent goToMarket = new Intent(Intent.ACTION_VIEW, uri); 
    Uri uri2 = Uri.parse("https://play.google.com/store/apps/details?id=" + getApplicationContext().getPackageName()); 
    Intent goToBrowser = new Intent(Intent.ACTION_VIEW, uri2); 
    try{ 
    try { 
      startActivity(goToMarket); 
     } catch (ActivityNotFoundException e) { 
      startActivity(goToBrowser); 
     } 
    }catch (ActivityNotFoundException e){ 
     Toast.makeText(this, "Android Market & Browser Not Found!", Toast.LENGTH_SHORT).show(); 

    } 
    break; 
case 4: 
    if(item.getTitle().equals("Exit")){ 
     AlertDialog alertbox = new AlertDialog.Builder(this) 
      .setMessage("Do you want to exit player?") 
      .setPositiveButton("Yes", new DialogInterface.OnClickListener() { 

       public void onClick(DialogInterface arg0, int arg1) { 
        TelephonyManager mgr = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); 
        if(mgr != null) { 
         mgr.listen(phoneStateListener, PhoneStateListener.LISTEN_NONE); 
        } 
        mpState = false; 
        //mp.stop(); 
        mp.release(); 
        finish(); 


       } 
      }) 
      .setNegativeButton("No", new DialogInterface.OnClickListener() { 

       public void onClick(DialogInterface arg0, int arg1) { 
           } 
      }) 
       .show(); 
    } 
    break; 
} 
return super.onOptionsItemSelected(item); 

} 
private Runnable show_toast = new Runnable() 
{ 
public void run() 
{ 
    Toast.makeText(HanumanBhajan.this, "Ringtone Set!", Toast.LENGTH_SHORT) 
       .show(); 
} 
}; 
private Runnable show_toast1 = new Runnable() 
{ 
public void run() 
{ 
    Toast.makeText(HanumanBhajan.this, "Alarm Tone Changed, Create New!", Toast.LENGTH_SHORT) 
       .show(); 
} 
}; 


}

堆棧跟蹤：空指針異常引起

java.lang.NullPointerException 
at com.hindubhakti.android.HanumanBhajan$1.run(HanumanBhajan.java:309) 
at android.os.Handler.handleCallback(Handler.java:587) 
at android.os.Handler.dispatchMessage(Handler.java:92) 
at android.os.Looper.loop(Looper.java:130) 
at android.app.ActivityThread.main(ActivityThread.java:3687) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:507) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625) 
at dalvik.system.NativeStart.main(Native Method)

309行是在可運行mUpdateTimeTask，首先嚐試catch塊。

我現在真的停留在這個錯誤。請幫忙！ 我不明白這個問題，請解釋一下，這樣我就可以學習，而不僅僅是糾正它。 問候， 凱沙夫

來源

2013-09-24 Keshav Agarwal

+1

這是你的309線嗎？ – Metalhead1247

+0

什麼是309行'HanumanBhajan.java'？ – Raghunandan

+2

mp爲空。確保它不是。 – 323go

回答

0

沒有給出更多的信息（即行號），我認爲這可能是mp空在mUpdateTimeTask。這可能是因爲你宣稱private boolean mpState = true，因此這將拋出NPE：

if(mpState==true){ 
    totalDuration = mp.getDuration(); 
}

來源

2013-09-24 06:01:22 Axel

+0

謝謝你們！我認爲媒體播放器爲空導致問題。 @Ken：對不起，我會記得縮短代碼。 –

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