MediaPlayer导致FC错误

Question

好的，我得到了这个FC错误。

我已经检查了代码三次，并尝试了两次重写。这是我能学到的最有效的代码。但我还是得到了FC。我将感谢任何帮助，因为我正试图为我的程序播放大约50个声音文件。每项活动在15到20之间。

implements OnClickListener {
MediaPlayer mp1;
MediaPlayer mp2;
MediaPlayer mp3;
MediaPlayer mp4;
MediaPlayer mp5;
MediaPlayer mp6;
MediaPlayer mp7;



public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.verbs);

    mp1 = MediaPlayer.create(this, R.raw.play);
    mp2 = MediaPlayer.create(this, R.raw.eat);
    mp3 = MediaPlayer.create(this, R.raw.can);
    mp4 = MediaPlayer.create(this, R.raw.go);
    mp5 = MediaPlayer.create(this, R.raw.help);
    mp6 = MediaPlayer.create(this, R.raw.practice);
    mp7 = MediaPlayer.create(this, R.raw.use);





    final Button button1 = (Button) findViewById(R.id.play_button);
    button1.setOnClickListener(this);

    final Button button2 = (Button) findViewById(R.id.eat_button);
    button2.setOnClickListener(this);

    final Button button3 = (Button) findViewById(R.id.can_button);
    button3.setOnClickListener(this);

    final Button button4 = (Button) findViewById(R.id.go_button);
    button4.setOnClickListener(this);

    final Button button5 = (Button) findViewById(R.id.Thelp_button);
    button5.setOnClickListener(this);

    final Button button6 = (Button) findViewById(R.id.pract_button);
    button6.setOnClickListener(this);

    final Button button7 = (Button) findViewById(R.id.use_button);
    button7.setOnClickListener(this);

    final Button button8 = (Button) findViewById(R.id.Back_Button);
    button8.setOnClickListener(this);



}

  public void onClick(View v) {
    switch(v.getId()) {
    case R.id.play_button:
        mp1.start();
        Toast.makeText(VerbsActivity.this, "PLAY",
                Toast.LENGTH_LONG).show();
        break;
    case R.id.eat_button:
        mp2.start();
        Toast.makeText(VerbsActivity.this, "EAT",
                Toast.LENGTH_LONG).show();
        break;
    case R.id.can_button:
        mp3.start();
        Toast.makeText(VerbsActivity.this, "CAN",
                Toast.LENGTH_LONG).show();
        break;
    case R.id.go_button:
        mp4.start();
        Toast.makeText(VerbsActivity.this,"GO",
                Toast.LENGTH_LONG).show();
        break;
    case R.id.Thelp_button:
        mp5.start();
        Toast.makeText(VerbsActivity.this,"HELP",
                Toast.LENGTH_LONG).show();
        break;
    case R.id.pract_button:
        mp6.start();
        Toast.makeText(VerbsActivity.this, "PRACTICE",
                Toast.LENGTH_LONG).show();
        break;
    case R.id.use_button:
        mp7.start();
        Toast.makeText(VerbsActivity.this, "USE",
                Toast.LENGTH_LONG).show();
        break;

    case R.id.Back_Button:
        finish();
        break;

    }
}

@Override
protected void onDestroy() {
      mp1.release();
      mp2.release();
      mp3.release();
      mp4.release();
      mp5.release();
      mp6.release();
      mp7.release();

    super.onDestroy();
}

}

Answer 1

您创建的MediaPlayer对象太多，这很容易导致异常。您还将在onDestroy()方法中释放它们，该方法在许多情况下不会被调用。

更改您的代码以使用SoundPool。

Answer 2

哇!为什么要使用这么多MediaPlayer对象？为什么不只有一个mediaplayer对象，然后在单击该按钮时为其分配资源呢？我不知道你的应用程序是做什么的，但我会像这样写上面的代码(或者至少是其中的一小段)：

MediaPlayer mp1;    //just have one MediaPlayer object.

public void onClick(View v) {
      switch(v.getId()) {
      case R.id.n1_button:
            if(mp1.create(this, R.raw.sound1) == NULL) {
              Log.v(this.toString(), "Unable to create mediaplayer object.");
            }
            try {
      mp1.start();
    } catch(IllegalStateException e) {
      e.printStackTrace();
     Log.v(this.toString(), "Illegal State Exception caught in start.");
    }
          Toast.makeText(NounsActivity.this, "word",
                       Toast.LENGTH_LONG).show();
        break;
      case R.id.n2_button:
        if(mp1.create(this, R.raw.sound1) == NULL) {
              Log.v(this.toString(), "Unable to create mediaplayer object.");
         }
         try {
    mp1.start();
      } catch(IllegalStateException e) {
    e.printStackTrace();
        Log.v(this.toString(), "Illegal State Exception caught in start.");
      }

          Toast.makeText(NounsActivity.this, "word",
                       Toast.LENGTH_LONG).show();
        break; and so on....

 @Override
    protected void onDestroy() {
        mp1.release();     //you just need to release one mediaplayer object now. 
        super.onDestroy();
    }

但从更一般的角度来看:将在try和catch语句块中调用MediaPlayer的所有语句包围起来，并通过将某些内容输出到LogCat的copius语句来简化调试。您可以获得有关将调试信息打印到LogCat here的更多信息，以及有关哪条语句引发哪条异常here的MediaPlayer文档。

HTH，

斯里拉姆

Answer 3

这个问题已经得到了回答，只是根据Sriram的建议进行了错误检查。

为soundpool错误启动新线程以使其更清晰。