android - How to make language preference be applied immediately? -


i've managed create switch preference allowing me enable , disable language, cannot apply changes after option has been selected.

<preferencescreen         xmlns:android="http://schemas.android.com/apk/res/android">   <preferencecategory         android:title="language">     <switchpreference         android:title="@string/setting_enable"         android:key="checkbox_lang"         android:summaryon="@string/settings_sum_en"         android:summaryoff="@string/settings_sum_dis"         android:defaultvalue="false"/>  </preferencecategory>   </preferencescreen>

the code below used change language settings. 

private void loadpreferences(){     //allows preferances screen in application     sharedpreferences sharedpreferences = preferencemanager.getdefaultsharedpreferences(this);      boolean isengchecked = sharedpreferences.getboolean("checkbox_lang",false);     if (isengchecked){          string languagetoload  = "default"; //selected default language (english)         locale locale = new locale(languagetoload);         locale.setdefault(locale);         configuration config = new configuration();         config.locale = locale;         getbasecontext().getresources().updateconfiguration(config, getbasecontext().getresources().getdisplaymetrics());      } else {          string languagetoload  = "ar"; // language         locale locale = new locale(languagetoload);         locale.setdefault(locale);         configuration config = new configuration();         config.locale = locale;         getbasecontext().getresources().updateconfiguration(config, getbasecontext().getresources().getdisplaymetrics());      }  }

how can change code allow change happen immediately?

p.s i've tried recreate activity creates more problems when application opened after closed (displays white screen).


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