packages/Keyguard/test/SampleTrustAgent/res/layout/sample_trust_agent_settings.xml

<?xml version="1.0" encoding="utf-8"?>

<!--
  ~ Copyright (C) 2014 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
  -->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    <Button android:id="@+id/enable_trust"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Grant trust for 30 seconds" />
    <Button android:id="@+id/revoke_trust"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Revoke trust" />
    <Button android:id="@+id/crash"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Crash" />
    <CheckBox android:id="@+id/managing_trust"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingTop="8dp"
            android:paddingBottom="8dp"
            android:text="Managing trust" />
    <CheckBox android:id="@+id/report_unlock_attempts"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingTop="8dp"
            android:paddingBottom="8dp"
            android:text="Report unlock attempts" />
    <CheckBox android:id="@+id/report_device_locked"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingTop="8dp"
            android:paddingBottom="8dp"
            android:text="Report device locked or unlocked" />

    <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
        <Button android:id="@+id/check_device_locked"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Device locked?" />
        <TextView android:id="@+id/check_device_locked_result"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1" />
    </LinearLayout>

</LinearLayout>