[DESCRIPTION]

在文件管理器中播放录音文件（.3gp 或者 .ogg）时，默认是用 video player 播放，如何修改使其可以选择音乐播放器播放？

[SOLUTION]

涉及文件：
1、FileManager/src/com/mediatek/filemanager/service/FileManagerService.java
2、FileManager/src/com/mediatek/filemanager/FileInfo.java
3、Music/AndroidManifest.xml

请修改如下：

1. 恢复 FileManagerService.java 中被注释掉的函数：

public String update3gppMimetype(FileInfo fileInfo) 及其函数体

public String update3gppMimetype(FileInfo fileInfo) {
    LogUtils.d(TAG, "update3gppMimetype...");
    String mimeType = FileInfo.MIMETYPE_3GPP_VIDEO;
    ContentResolver resolver = getContentResolver();
    if (resolver != null && fileInfo != null) {
       // fileInfo.setFileMimeType(FileInfo.MIMETYPE_3GPP_VIDEO);
        final Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
        final String[] projection = new String[] { MediaStore.MediaColumns.MIME_TYPE };
        final String selection = MediaStore.MediaColumns.DATA + "=?";
        final String[] selectionArgs = new String[] { fileInfo
                .getFileAbsolutePath() };
        Cursor cursor = null;
        try {
            cursor = resolver.query(uri, projection, selection,
                    selectionArgs, null);
            LogUtils.d(TAG, "update3gppMimetype,file:" + fileInfo.getFileAbsolutePath());
            if (cursor != null && cursor.moveToFirst()) {
                 mimeType = cursor.getString(cursor
                        .getColumnIndex(MediaStore.MediaColumns.MIME_TYPE));
                LogUtils.d(TAG, "update3gppMimetype mimeType: " + mimeType);
            } else {
                mimeType = fileInfo.getFileOriginMimeType();
                LogUtils.d(TAG, "update3gppMimetype, not find from media,origin mimeType: " + mimeType);
                if (mimeType == null) {
                    mimeType = FileInfo.MIMETYPE_3GPP_VIDEO;
            }
                }
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
    }
    return mimeType;
}

添加导包：

import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.provider.MediaStore;

2. 恢复 FileInfo.java 中的部分代码；

private static HashMap<String, String> sMimeType3GPPMap = new HashMap<String, String>();

public String getFileMimeType(FileManagerService service) 中被注释的代码：
///M:@#3gp#@{the follow code is to handle the 3gp file.not do special handle now 这个注释以下的所有内容

///M:@#3gp#@{the follow code is to handle the 3gp file.not do special handle now
if (mimeType.equalsIgnoreCase(FileInfo.MIMETYPE_3GPP_UNKONW)) {
    mimeType = service.update3gppMimetype(this);
}
if (mimeType.equalsIgnoreCase(FileInfo.MIMETYPE_3GPP_AUDIO)
        || mimeType.equalsIgnoreCase(FileInfo.MIMETYPE_3GPP_VIDEO)
        || mimeType.equalsIgnoreCase(FileInfo.MIMETYPE_3GPP2_VIDEO)) {
    String name = null;
    int sepIndex = mName.lastIndexOf("(");
    if (sepIndex > 0) {
        name = mName.substring(0, sepIndex);
    } else {
        name = mName.substring(0, mName.indexOf("."));
    }
    LogUtils.d(TAG, "getFileMimeType ,record the mimetype: " + mimeType + ",name = "
            + name + ",mName = " + mName);
    sMimeType3GPPMap.put(name, mimeType);
}
///@the top code is to handle the 3gp file.not do special handle now}

• private String getMimeType(File file) 中被注释掉的代码：
  ///M:#3gp#@{the follow code is to handle the 3gp file.not do special handle now 这个注释以下的所有内容

  ///M:#3gp#@{the follow code is to handle the 3gp file.not do special handle now
  // sp ecial solution for checking 3gpp original mimetype
  // 3gpp extension could be video/3gpp or audio/3gpp
  if (mimeType.equalsIgnoreCase(FileInfo.MIMETYPE_3GPP_VIDEO)
        || mimeType.equalsIgnoreCase(FileInfo.MIMETYPE_3GPP2_VIDEO)) {
    LogUtils.d(TAG, "getMimeType, a 3gpp or 3g2 file,mimeType=" + mimeType);
    return FileInfo.MIMETYPE_3GPP_UNKONW;
  }
  ///M:@{the top code is to handle the 3gp file.not do special handle now

• 被注释掉的函数 public String getFileOriginMimeType() 全部恢复 ```java ///M:@#3gp#{the follow code is to handle the 3gp file.not do special handle now public String getFileOriginMimeType() { String key = null; LogUtils.d(TAG, “getFileOriginMimeType, mName =” + mName); int sepIndex = mName.lastIndexOf(“(“); if (sepIndex > 0) {

    key = mName.substring(0, sepIndex);

  } else {

    key = mName.substring(0, mName.indexOf("."));

  } LogUtils.d(TAG, “getFileOriginMimeType,key is:” + key); String orginalMimeType = sMimeType3GPPMap.get(key); LogUtils.d(TAG, “getFileOriginMimeType, OrginalMimeType=” + orginalMimeType); if (orginalMimeType != null) {

    sMimeType3GPPMap.remove(key);

  } return orginalMimeType;

} ///M:@{the top code is to handle the 3gp file.not do special handle now

- 添加导包
```java
import java.util.HashMap;

3. 在 music 的 androidManifest.xml 中，在

<activity android:name="com.android.music.MediaPlaybackActivity"
下添加如下intent filter:

<intent-filter android:priority="1">
    <action android:name="android.intent.action.VIEW" />
    <category android:name="android.intent.category.DEFAULT" />
    <data android:scheme="file"/>
    <data android:mimeType="audio/*"/>
    <data android:mimeType="application/ogg"/>
    <data android:mimeType="application/x-ogg"/>
    <data android:mimeType="application/itunes"/>
    <data android:mimeType="application/aac"/>
    <data android:mimeType="application/imy"/>
    <data android:mimeType="application/3gpp"/>
</intent-filter>