Android应用程序崩溃？

我已经创建了一个应用程序，点击一个按钮说[下一步]。我正在调用一种方法，这种方法的工作是随机生成5个随机数并将它们设置为5个按钮，每按一下按钮它将随机选择一个小的（2秒）音频文件并播放它。如果我点击按钮[下一步]超过8次，我的整个应用程序正在重新启动。Android应用程序崩溃？

logcat中没有显示任何错误...

TextView addNo1, addNo2; 
Button option1, option2, option3, option4, next; 
Random randomGenerator; 
Integer randomInt1, randomInt2; 
int flag = 0, setans; 
MediaPlayer wa1,wa2,wa3,wa4,wa5,wa6,wa7; 
MediaPlayerHelper m; 
MediaPlayer mp1, mp2, mp3, mp4, mp5, mp6, mp7, mp8, mp9, mp10, mp11, mp12, 
     mp13, mp14, mp15, mp16, mp17, mp18, mp19, mp20; 
int correctmusiclist[] = { R.raw.correct1, R.raw.correct2, R.raw.correct3, 
     R.raw.correct4, R.raw.correct5, R.raw.correct6, R.raw.correct7, 
     R.raw.correct8, R.raw.correct9, R.raw.correct10, R.raw.correct11, 
     R.raw.correct12, R.raw.correct13, R.raw.correct14, R.raw.correct15 }; 
int wrongmusiclist[] = {R.raw.wrong1,R.raw.wrong2,R.raw.wrong3,R.raw.wrong4,R.raw.wrong5,R.raw.wrong6, 
     R.raw.wrong7}; 
Context context = Addition.this; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.additionactivity); 
    addNo1 = (TextView) findViewById(R.id.textView1); 
    addNo2 = (TextView) findViewById(R.id.textView2); 
    option1 = (Button) findViewById(R.id.addoption1); 
    option2 = (Button) findViewById(R.id.addoption2); 
    option3 = (Button) findViewById(R.id.addoption3); 
    option4 = (Button) findViewById(R.id.addoption4); 
    next = (Button) findViewById(R.id.button1); 
    next.setOnClickListener(new OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      nextChangeAdd(); 
     } 
    }); 
    m = new MediaPlayerHelper(Addition.this); 
    randomGenerator = new Random(); 
    Typeface tf = Typeface.createFromAsset(getAssets(), 
      "fonts/StefanieDots.ttf"); 
    addNo1.setTypeface(tf); 
    nextChangeAdd(); 

} 

public void nextChangeAdd() { 
    randomInt1 = randomGenerator.nextInt(10); 
    randomInt2 = randomGenerator.nextInt(10); 
    setans = randomGenerator.nextInt(5); 
    if (setans == 0) { 
     setans++; 
    } 
    int ans = randomInt1 + randomInt2; 
    String addans = Integer.toString(ans); 
    addNo1.setText(randomInt1.toString()); 
    addNo2.setText(randomInt2.toString()); 
    List<Integer> generated = new ArrayList<Integer>(); 
    for (int i = 0; i < 3; i++) { 
     while (true) { 
      Integer next = randomGenerator.nextInt(19) + 1; 
      if (!generated.contains(ans)) { 
       generated.add(next); 
       break; 
      } 
     } 
    } 

    switch (setans) { 
    case 1: 
     flag = 1; 
     option1.setText(addans); 
     option1.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       getAudio(); 
      } 
     }); 

     break; 
    case 2: 
     flag = 2; 
     option2.setText(addans); 
     option2.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       getAudio(); 
      } 
     }); 

     break; 
    case 3: 
     flag = 3; 
     option3.setText(addans); 
     option3.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       getAudio(); 
      } 
     }); 
     break; 
    case 4: 
     flag = 4; 
     option4.setText(addans); 
     option4.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       getAudio(); 
      } 
     }); 
        break; 
    } 
    String a2 = generated.get(0).toString(); 
    String a3 = generated.get(1).toString(); 
    String a4 = generated.get(2).toString(); 

    if (flag == 1) { 
     option2.setText(a2); 
     option2.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
     option3.setText(a3); 
     option3.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
     option4.setText(a4); 
     option4.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
    } 
    if (flag == 2) { 
     option1.setText(a2); 
     option2.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
     option3.setText(a3); 
     option3.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
     option4.setText(a4); 
     option4.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
    } 
    if (flag == 3) { 
     option2.setText(a2); 
     option2.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
     option1.setText(a3); 
     option1.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
     option4.setText(a4); 
     option4.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
    } 

    if (flag == 4) { 
     option2.setText(a2); 
     option2.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
     option3.setText(a3); 
     option3.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
     option1.setText(a4); 
     option1.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       wrongAns(); 
      } 
     }); 
    } 
} 

public void getAudio() { 
    Random randomGenerator = new Random(); 
    int i = randomGenerator.nextInt(10); 
    mp1 = MediaPlayer.create(context, correctmusiclist[0]); 
    mp2 = MediaPlayer.create(context, correctmusiclist[1]); 
    mp3 = MediaPlayer.create(context, correctmusiclist[2]); 
    mp4 = MediaPlayer.create(context, correctmusiclist[3]); 
    mp5 = MediaPlayer.create(context, correctmusiclist[4]); 
    mp6 = MediaPlayer.create(context, correctmusiclist[5]); 
    mp7 = MediaPlayer.create(context, correctmusiclist[6]); 
    mp8 = MediaPlayer.create(context, correctmusiclist[7]); 
    mp9 = MediaPlayer.create(context, correctmusiclist[8]); 
    mp10 = MediaPlayer.create(context, correctmusiclist[9]); 
    mp11 = MediaPlayer.create(context, correctmusiclist[10]); 
    mp12 = MediaPlayer.create(context, correctmusiclist[11]); 
    mp13 = MediaPlayer.create(context, correctmusiclist[12]); 
    mp14 = MediaPlayer.create(context, correctmusiclist[13]); 
    mp15 = MediaPlayer.create(context, correctmusiclist[14]); 
    switch (i) { 
    case 1: 
     mp1.start(); 
     break; 
    case 2: 
     mp2.start(); 
     break; 
    case 3: 
     mp3.start(); 
     break; 
    case 4: 
     mp4.start(); 
     break; 
    case 5: 
     mp5.start(); 
     break; 
    case 6: 
     mp6.start(); 
     break; 
    case 7: 
     mp7.start(); 
     break; 
    case 8: 
     mp8.start(); 
     break; 
    case 9: 
     mp9.start(); 
     break; 
    case 10: 
     mp10.start(); 
     break; 
    case 11: 
     mp11.start(); 
     break; 
    case 12: 
     mp12.start(); 
     break; 
    case 13: 
     mp13.start(); 
     break; 
    case 14: 
     mp14.start(); 
     break; 
    case 15: 
     mp15.start(); 
     break; 
    default: 
     mp10.start(); 
    } 

} 

public void wrongAns() 
{ 
    Random randomGenerator = new Random(); 
    int i = randomGenerator.nextInt(10); 
    wa1 = MediaPlayer.create(context, wrongmusiclist[0]); 
    wa2 = MediaPlayer.create(context, wrongmusiclist[1]); 
    wa3 = MediaPlayer.create(context, wrongmusiclist[2]); 
    wa4 = MediaPlayer.create(context, wrongmusiclist[3]); 
    wa5 = MediaPlayer.create(context, wrongmusiclist[4]); 
    wa6 = MediaPlayer.create(context, wrongmusiclist[5]); 
    wa7 = MediaPlayer.create(context, wrongmusiclist[6]); 
    switch (i) { 
    case 1: 
     wa1.start(); 
     break; 
    case 2: 
     wa2.start(); 
     break; 
    case 3: 
     wa3.start(); 
     break; 
    case 4: 
     wa4.start(); 
     break; 
    case 5: 
     wa5.start(); 
     break; 
    case 6: 
     wa6.start(); 
     break; 
    case 7: 
     wa7.start(); 
     break; 
    default: 
     wa7.start(); 
}

}}

来源

2012-11-28 Anshul majoka

请分享logcat日志... –

发布您的相关代码和LogCat错误，所以我们可以帮助您。 – Sam

分享代码和logcat –

所有getAudio内（）和wrongAns（）用于播放音频随机首先是完全错误的，因为你完全通过创建如此多的MediaPlayer对象来解决它。您需要在此创建随机数字时只生成一个MediaPlayer对象并在开关盒中播放声音。像这样的东西

Random randomGenerator = new Random(); 
int i = randomGenerator.nextInt(10); 


switch (i) { 
case 1: 
    wa1 = MediaPlayer.create(context, wrongmusiclist[1]); 
    wa1.start(); 
    break; 
case 2: 
    wa1 = MediaPlayer.create(context, wrongmusiclist[2]); 
    wa1.start(); 
    break;

并将wa1作为类级变量。

更新使用这个功能来播放音频

public void playBeep() { 
try { 

    if (m.isPlaying()) { 
     m.stop(); 
     m.release(); 
     m = new MediaPlayer(); 
    } 
    AssetFileDescriptor descriptor = getAssets().openFd("beepbeep.mp3"); 
    m.setDataSource(descriptor.getFileDescriptor(), descriptor.getStartOffset(), descriptor.getLength()); 
    descriptor.close(); 

    m.prepare(); 
    m.setVolume(1f, 1f); 
    m.setLooping(true); 
    m.start(); 
} catch (Exception e) { 
} 
}

和文件路径存储字符串数组英寸并将该函数传递给随机数，并选择从数组到不同文件路径的随机索引。

来源

2012-11-28 18:52:39

我已经试过这个但仍然面临同样的问题..........有没有其他的方式来完成这项任务......？ –

Android应用程序崩溃？

回答

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