MediaPlayer準備faile：狀態= 0x1

我一直在從SD卡獲取音樂文件列表，我很成功，但問題是，當我點擊一個文件，它應該播放該文件，但它是給我這個錯誤。這裏是我的代碼：MediaPlayer準備faile：狀態= 0x1

private String[] mMusicList; 
static long playlistid=0; 
/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    mMediaPlayer = new MediaPlayer(); 

    ListView mListView = (ListView) findViewById(R.id.phonemusiclist); 

    mMusicList = getMusic(); 

    ArrayAdapter<String> mAdapter = new ArrayAdapter<String>(this, 
    android.R.layout.simple_list_item_1, mMusicList); 
    mListView.setAdapter(mAdapter); 
    mListView.setOnItemClickListener(new OnItemClickListener() { 

    @Override 
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, 
    long arg3) { 
     try { 

     playSong(mMusicList[arg2]); 
     } catch (IllegalArgumentException e) { 
     e.printStackTrace(); 
     } catch (IllegalStateException e) { 
     e.printStackTrace(); 
     } catch (IOException e) { 
     e.printStackTrace(); 
     } 
    } 


    }); 


} 

private String[] getMusic() { 
    final Cursor mCursor = managedQuery(
    MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, 
    new String[] { MediaStore.Audio.Media.DISPLAY_NAME }, null, null, 
    "LOWER(" + MediaStore.Audio.Media.TITLE + ") ASC"); 

    int count = mCursor.getCount(); 

    String[] songs = new String[count]; 
    int i = 0; 
    if (mCursor.moveToFirst()) { 
    do { 
     songs[i] = mCursor.getString(0); 
     i++; 
    } while (mCursor.moveToNext()); 
    } 

    mCursor.close(); 

    return songs; 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
} 

private void playSong(String path) throws IllegalArgumentException,IllegalStateException, IOException { 
    String extStorageDirectory = Environment.getExternalStorageDirectory() 
    .toString(); 

    path = extStorageDirectory + File.separator + path; 

    mMediaPlayer.reset(); 
    FileInputStream fis = new FileInputStream(path); 
    mMediaPlayer.setDataSource(fis.getFD()); 
    mMediaPlayer.prepare(); 
    mMediaPlayer.start(); 
}

來源

2014-01-30 ank

好吧首先是去除mCursor.close()。在這裏你正在關閉大部分時間都是問題的光標。

其次，明顯的錯誤是您在mediaplayer中指定的路徑。你正在給separator一個路徑。

path = extStorageDirectory + File.separator + path; 
FileInputStream fis = new FileInputStream(path); 
mMediaPlayer.setDataSource(fis.getFD());

這是錯誤的，並且找不到文件。

而是更改代碼以

mMediaPlayer.setDataSource(extStorageDirectory);

希望你得到它。 Cheer。:)

來源

2014-01-30 06:41:26 BlueSword

你好..我已經嘗試wt u建議。但仍然沒有實現的結果，似乎我錯了別的地方... – ank

然後做**編輯**你的問題，因爲人們被誤導了！ – BlueSword

MediaPlayer準備faile：狀態= 0x1

回答

相關問題