我有一个铃声偏好.我如何获得选择？我有以下类型的代码：

if(preferences.getString("ringtonePref", "n/a") != ??)
            {
                Toast.makeText(TutorialPref.this,   "Chosen ringtone: silent", Toast.LENGTH_LONG).show();
            }
            else if(preferences.getString("ringtonePref", "n/a") != "DEFAULT_RINGTONE_URI" )
            {
                Toast.makeText(TutorialPref.this,   "Chosen ringtone: + default", Toast.LENGTH_LONG).show();
            }

解决方法:

这是将选择分配给通知实例的方式.

String strRingtonePreference = preferences.getString("ringtonePref", "DEFAULT_RINGTONE_URI");
notification.sound = Uri.parse(strRingtonePreference);

通知是：

Notification notification = new Notification(icon, tickerText, time);

您将在这里找到更多信息：http://developer.android.com/reference/android/app/Notification.html