Signed-off-by: rtc <rtc@qq.com>

src/Notes-master/src/net/micode/notes/ui/AlarmAlertActivity.java

@@ -104,13 +104,15 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
      */
     private void playAlarmSound() {
         Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);// 获取闹钟铃声的URI
-
+        //这里的流都是音频流
         int silentModeStreams = Settings.System.getInt(getContentResolver(),
                 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);// 获取当前静音模式下影响铃声的流
 
-        if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
+        if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) // 如果静音模式下影响铃声的流中包含闹钟铃声流，设置媒体播放器的音频流为静音模式下影响铃声的流
+        {
             mPlayer.setAudioStreamType(silentModeStreams);
-        } else {
+        } else// 否则，设置媒体播放器的音频流为闹钟铃声流
+        {
             mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
         }
         try {