using proper PreferenceActivity now, tho the underlying storage of the values remained almost the same, some changes how the preferences are accessed and how the cache service is started

res/values/arrays.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+
+    <string-array name="pass_phrase_cache_ttl_entries">
+        <item>@string/choice_15secs</item>
+        <item>@string/choice_1min</item>
+        <item>@string/choice_3mins</item>
+        <item>@string/choice_5mins</item>
+        <item>@string/choice_10mins</item>
+    </string-array>
+
+    <string-array name="pass_phrase_cache_ttl_values">
+        <item>15</item>
+        <item>60</item>
+        <item>180</item>
+        <item>300</item>
+        <item>600</item>
+    </string-array>
+
+</resources>