java - Android, checkable menu item -

i have menu in actionbar, checkable (in xml), when try, in java, check on press on item, item stay unchecked (but other things related action done)

my xml menu :

<?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:tools="http://schemas.android.com/tools">     [...]     <item         android:id="@+id/menu_switch_full_original"         android:title="@string/menu_switch_full_original"         android:checkable="true"/> </menu> 

and java code :

public boolean onoptionsitemselected(menuitem item) {     if (mentriesids != null) {         activity activity = getactivity();          switch (item.getitemid()) {             [...]             case r.id.menu_switch_full_original: {                 item.setchecked(true);                 [...]         }         activity.invalidateoptionsmenu();     }     return true; } 

what missing ?

try this...

private boolean ischecked = false;      @override     public boolean onprepareoptionsmenu(menu menu) {          menuitem checkable = menu.finditem(r.id.menu_switch_full_original);          checkable.setchecked(ischecked);          return true;     }      @override     public boolean oncreateoptionsmenu(menu menu) {         // todo auto-generated method stub         getmenuinflater().inflate(r.menu.a, menu);         return super.oncreateoptionsmenu(menu);     }      @override     public boolean onoptionsitemselected(menuitem item) {         // todo auto-generated method stub         switch (item.getitemid()) {         case r.id.menu_switch_full_original:             ischecked = !item.ischecked();             item.setchecked(ischecked);             // other functionality             break;          default:             break;         }         return super.onoptionsitemselected(item);     }