<?xml version="1.0" encoding="utf-8"?> <!-- Copyright (C) 2010 The Android Open Source Project       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. -->  <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">      <PreferenceCategory         android:key="security_category"         android:title="@string/lock_settings_title">          <PreferenceScreen             android:key="unlock_set_or_change"             android:title="@string/unlock_set_unlock_launch_picker_title"