user interface - Android item group android:checkableBehavior="single" -


i want programmatically set radio button of group according changing program status.

the xml file this:

<item android:id="@+id/silent_mode" android:title="@string/silent_mode" >     <menu>         <group android:checkablebehavior="single" android:id="@+id/silent_on_off">             <item android:id="@+id/silent_mode_on"                 android:checked="false"                 android:title="@string/silent_mode_on_text"                 />             <item android:id="@+id/silent_mode_off"                 android:checked="true"                 android:title="@string/silent_mode_off_text" />         </group>     </menu> </item> 

and wish update slient_mode_on or slient_mode_off according state of variable, let boolean variable called issilentmode. isslientmode variable change on fly. there background service check every 5 minutes. if isslientmode turn true, want set slient_mode_on.setselected(true), else set false.

i tried set menuitem, there no response @ all. item keep @ same state user previous selection, , not update according program change.

how handle this?

    public static void updatesilentmodecheckbox() {      if (mainmenu!=null) {          menuitem itemon = mainmenu.finditem(r.id.silent_mode_on);         menuitem itemoff = mainmenu.finditem(r.id.silent_mode_off);          log.i("mainactivity", itemon.ischecked() + " " + issilentmode + " ");         if (itemon.ischecked() && issilentmode) {             // silentmodeon, itemonchecked, donothing         } else if (itemon.ischecked() && !issilentmode) {             itemoff.setchecked(true);             itemon.setchecked(false);         } else if (!itemon.ischecked() && issilentmode) {             itemon.setchecked(true);             itemoff.setchecked(false);         } else if (!itemon.ischecked() && issilentmode) {             // donothing         }         log.i("mainactivity", itemon.ischecked() + " " + issilentmode + " ");     } } 

i found status of itemon , itemoff never updated.


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