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I'm using in a settings.xml file a ListPreference. I want to show the user a list of 3 options to select. When the user chooses one of the options in the Settings, I get this error: java.lang.NullPointerException at android.preference.ListPreference.onDialogClosed(ListPreference.java:264) at android.preference.DialogPreference.onDismiss(DialogPreference.java:381) at android.app.Dialog$ListenersHandler.handleMessage(Dialog.java:1228) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4424) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) at dalvik.system.NativeStart.main(Native Method) This is the code of the ListPreference: <ListPreference android:entries="@array/date_alignement" android:entryValues="@array/date_alignement_values" android:key="settings_date_alignement" android:summary="@string/settings_date_alignement_summary" android:title="@string/settings_date_alignement_title" /> And here are the arrays I use to populate the entries: <string-array name="date_alignement"> <item>"Top"</item> <item>"Center"</item> <item>"Bottom"</item> </string-array> <integer-array name="date_alignement_values"> <item >0</item> <item >1</item> <item >2</item> </integer-array> In my onSharedPreferenceChanged I use those values in this way: @Override public void onSharedPreferenceChanged( SharedPreferences sharedPreferences, String key) { //Text

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