Android手机铃声代码兑现

网上查了很多例子，都有点问题，综合几个自己写了个可以设置铃声、通知声音、闹钟声音和所有声音功能的方法。

首先写一个常量类（定义想要设置为那种铃声的标示）：

AppConstant.javapublic interface AppConstant {       public static final int RINGTONE = 0;                   //铃声    public static final int NOTIFICATION = 1;               //通知音    public static final int ALARM = 2;                      //闹钟    public static final int ALL = 3;                        //所有声音}

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此方法需要传入想要设置为铃声的全路径（如：/mnt/sdcard/mp3/a.mp3 ），和想要设置为那种铃声的标示：

private void setVoice(String path2,int id)    {       ContentValues cv = new ContentValues();       Uri newUri = null;       Uri uri = MediaStore.Audio.Media.getContentUriForPath(path2);       // 查询音乐文件在媒体库是否存在       Cursor cursor = this.getContentResolver().query(uri, null, MediaStore.MediaColumns.DATA + "=?", new String[] { path2 },null);       if (cursor.moveToFirst() && cursor.getCount() > 0)       {           String _id = cursor.getString(0);           switch (id) {              case AppConstant.RINGTONE:                  cv.put(MediaStore.Audio.Media.IS_RINGTONE, true);                  cv.put(MediaStore.Audio.Media.IS_NOTIFICATION, false);                  cv.put(MediaStore.Audio.Media.IS_ALARM, false);                  cv.put(MediaStore.Audio.Media.IS_MUSIC, false);                  break;              case AppConstant.NOTIFICATION:                  cv.put(MediaStore.Audio.Media.IS_RINGTONE, false);                  cv.put(MediaStore.Audio.Media.IS_NOTIFICATION, true);                  cv.put(MediaStore.Audio.Media.IS_ALARM, false);                  cv.put(MediaStore.Audio.Media.IS_MUSIC, false);                  break;              case AppConstant.ALARM:                  cv.put(MediaStore.Audio.Media.IS_RINGTONE, false);                  cv.put(MediaStore.Audio.Media.IS_NOTIFICATION, false);                  cv.put(MediaStore.Audio.Media.IS_ALARM, true);                  cv.put(MediaStore.Audio.Media.IS_MUSIC, false);                  break;              case AppConstant.ALL:                  cv.put(MediaStore.Audio.Media.IS_RINGTONE, true);                  cv.put(MediaStore.Audio.Media.IS_NOTIFICATION, true);                  cv.put(MediaStore.Audio.Media.IS_ALARM, true);                  cv.put(MediaStore.Audio.Media.IS_MUSIC, false);                  break;                 default:                  break;           }                     // 把需要设为铃声的歌曲更新铃声库           getContentResolver().update(uri, cv, MediaStore.MediaColumns.DATA + "=?",new String[] { path2 });           newUri = ContentUris.withAppendedId(uri, Long.valueOf(_id));                   // 一下为关键代码：           switch (id) {              case AppConstant.RINGTONE:                  RingtoneManager.setActualDefaultRingtoneUri(this, RingtoneManager.TYPE_RINGTONE, newUri);                  break;              case AppConstant.NOTIFICATION:                  RingtoneManager.setActualDefaultRingtoneUri(this, RingtoneManager.TYPE_NOTIFICATION, newUri);                  break;              case AppConstant.ALARM:                 RingtoneManager.setActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM, newUri);                  break;              case AppConstant.ALL:                  RingtoneManager.setActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALL, newUri);                  break;                 default:                  break;           }                     //播放铃声//         Ringtone rt = RingtoneManager.getRingtone(this, newUri);//         rt.play();       }    }

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