从ListPrefernce调用活动

Question

您好我正在开发一个Android短信应用程序，其中我试图包含settings.xml，首选项包含两个CheckBoxPreference和一个类似于链接的ListPreference

https://androidresearch.wordpress.com/2012/03/09/creating-a-preference-activity-in-android/

我希望ListPreference显示手机的默认铃声。如何通过listprefernce调用活动

public class Preference extends PreferenceActivity implements OnPreferenceClickListener 
{
   private ListPreference mListPreference;
   protected void onCreate(Bundle savedInstanceState) 
   {
     super.onCreate(savedInstanceState);
     addPreferencesFromResource(R.xml.preference);

       mListPreference.setOnPreferenceChangeListener(new  OnPreferenceChangeListener() 
       {
          public boolean onPreferenceChange(android.preference.Preference preference, Object newValue)
        {
          //how to call an activity in this place
          return true;
         }
      });
   }
}

Answer 1

我认为，你真正想要的是RingtonePreference：

<RingtonePreference android:key="ringtone" android:ringtoneType="notification"/>

https://developer.android.com/reference/android/preference/RingtonePreference.html