Android的MediaPlayer的错误（1，-2147483648）播放MP3时，当地 [英] Android MediaPlayer Error(1, -2147483648) when playing an mp3 locally
问题描述
后不久的Android 4.4出来了我的code已正常工作，因为2.2突然灭车。
Shortly after Android 4.4 came out my code which has been working correctly since 2.2 suddenly went buggy.
我的code将查询音乐数据库对于给定的音乐文件。路径返回的查询，然后这条路径被传递到的MediaPlayer
My code will query the music database for a given music file. The path is returned in the query and this path is then passed onto the MediaPlayer.
code：
String uri = "content://media/internal/audio/media";
String[] columns = [audio_id as _id, title, album, artist, album_id, _data];
String where = "album = 'XX'";
Cursor c = this.getContentResolver().query(uri, columns, where, null, MediaColumns.TITLE);
String musicPath = c.getString(5);
// musicPath is "/storage/emulated/0/Music/The XX/Islands.mp3"
player.reset();
player.setDataSource(musicPath);
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
player.prepareAsync();
我结束了无用的错误（1，-2147483648）消息在我的LogCat中。
I end up with the useless Error(1, -2147483648) message in my LogCat.
我也尝试更换
player.setDataSource(musicPath);
与
FileInputStream fileInputStream = new FileInputStream(musicPath);
player.setDataSource(fileInputStream.getFD());
fileInputStream.close();
但是，这产生的新的FileInputStream（...）出现FileNotFoundException：
But this produces a FileNotFoundException on the new FileInputStream(...):
java.io.FileNotFoundException：/存储/模拟/ 0 /音乐/的xx / Islands.mp3：打开失败：EACCES（拒绝）
这是有趣的，因为由查询返回的路径开头/存储/模拟/ ...但如果我看在Eclipse中的DDMS视图中的实际路径是到/ mnt /壳/模拟/ ... 。这正常吗？
This is interesting because the path returned by the query begins with "/storage/emulated/..." but if I look in the DDMS view in Eclipse the actual path is "/mnt/shell/emulated/...". Is this normal?
尽管如此，如果我改变路径preFIX手动我在文件浏览器看，我仍然可以在新的FileInputStream（...）出现FileNotFoundException：
Despite that, if I change the path prefix manually to what I see in the file explorer, I still get a FileNotFoundException on the new FileInputStream(...):
java.io.FileNotFoundException：到/ mnt /壳/模拟/ 0 /音乐/的xx / Islands.mp3：打开失败：EACCES（拒绝）
同样的异常。这有什么权限被拒绝的公司吗？直到奇巧这是工作的罚款。我还因为添加了权限：
Same exception. What is with this Permission denied business? Up until KitKat it was working fine. I've also since added the permission :
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
我的应用程序在清单这一行：
My app has this line in the manifest:
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" />
有没有人看起来类似的东西，并找到了解决这个未知的错误？我试图在播放音乐和其他音乐播放器应用程序来播放做工精细的MP3音乐，因此导致我相信这个问题是不是缺少codeC。
Has anybody seem something similar and found a solution to this unknown error? The mp3s that I am trying to play work fine in Play Music and another music player app, thus leading me to believe the problem is not a missing codec.
谢谢
肖恩
编辑：
我如果文件存在内容查询后立即检查和返回的路径没有。
I've checked immediately after the content query if the file exists and the path returned does not.
File f = new File(musicPath);
boolean exists = f.exists(); // false
这怎么可能？我试着查询内部媒体代替，但返回任何结果（如预期）
How is this possible? I've tried querying internal media instead but that returns no results (as expected)
推荐答案
我解决这个得到了与添加写权限的应用程序的（不幸的）解决方案。
I got around this with the (unfortunate) solution of adding a write permission to the app.
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
显然，这是从4.4起必要的。任何人都可以证实或否认这一点？
Apparently this is necessary from 4.4 onward. Can anybody confirm or deny this?
肖恩
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