java - can't getPreferences but it keeps changes (can see in manu layout) -

i've made special preferences layout.

<?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android" > <checkboxpreference     android:key="pref_sound"     android:title="@string/pref_sound"     android:summary="@string/pref_sound_summ"     android:defaultvalue="true" /> <checkboxpreference     android:key="pref_vibro"     android:title="@string/pref_vibro"     android:summary="@string/pref_vibro_summ"     android:defaultvalue="true" /> <checkboxpreference     android:key="pref_screen"     android:title="@string/pref_screen"     android:summary="@string/pref_screen_summ"     android:defaultvalue="true" /> </menu> 

and activity it.

package com.actionandresttimer; import android.os.bundle; import android.preference.preferenceactivity;  public class prefs extends preferenceactivity { @suppresswarnings("deprecation") @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         addpreferencesfromresource(r.xml.cboxpreferenses);     } } 

i can start preferences activity via menu/settings main activity , works. stores changes when close , start app again:

@override public boolean oncreateoptionsmenu(menu menu) {     // inflate menu; adds items action bar if present.      //getmenuinflater().inflate(r.menu.main, menu);     //return true;      super.oncreateoptionsmenu(menu);     menuinflater inflater = getmenuinflater();     //inflater.inflate(r.menu.menu, menu);     inflater.inflate(r.menu.main, menu);     return true; } 

but when i'm trying call getpreferences, doesn't work

public void getprefs() {     // spref = getpreferences(mode_private);     //  spref = preferencemanager.getdefaultsharedpreferences(prefs);     spref = this.getsharedpreferences("com.prefs", context.mode_private);      cboxsoundstatus = spref.getboolean("pref_sound", true);     cboxvibrostatus = spref.getboolean("pref_vibro", true);     cboxscreenstatus = spref.getboolean("cpref_screen", true); } 

i can see default preferences settings. boolean set true in preferences activity layout displayed false

i tried android developer website, i'm new java programming , don't understand how information official documentation website.

try code

sharedpreferences prefs = preferencemanager.getdefaultsharedpreferences(getapplicationcontext());

prefs.getboolean("pref_sound", true);