android - SharedPreferences, PreferenceActivity problem -

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i have in settings.xml 2 checkboxes. each checkboxes has same keys "showcontactphotoscheckboxpref":

<preferencescreen             android:title="appearence"             android:key="appearencepref" >             ......             <preferencecategory                 android:title="show contact photos">                 <checkboxpreference                      android:title="show contact photos"                      android:summary="@string/show_contact_photos_preference"                     android:defaultvalue="true"                     android:key="showcontactphotoscheckboxpref" />             </preferencecategory>        ........ </preferencescreen>  .......  <preferencescreen             android:title="contact options"             android:key="contactotionspref">             <preferencecategory                  android:title="show contact photos">                 <checkboxpreference                      android:title="show contact photos"                     android:defaultvalue="true"                     android:key="showcontactphotoscheckboxpref" />             </preferencecategory> ......             </preferencescreen>

after start app state of chekbox №1 = chekbox №2 = true. when click on chekbox №1(state unchecked) , go checkbox №2 - state checked, in sharedpreferences file state of showcontactphotoscheckboxpref false. possible synchronize these chekboxes?

naming 2 keys same in different preferencescreens doesn't mean same key. in fact practice use unique key names. either use single checkboxpreference or update settings each of 2 preferences programmatically when checked/unchecked.


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