res/layout/voicemail_change_pin.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
** Copyright 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:layout_width="match_parent"
  android:layout_height="match_parent"
  android:gravity="center_horizontal"
  android:orientation="vertical">
  <!-- header text ('Enter Pin') -->
  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:orientation="vertical"
    android:paddingTop="48dp"
    android:paddingStart="48dp"
    android:paddingEnd="48dp">
    <TextView
      android:id="@+id/headerText"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:gravity="center"
      android:lines="2"
      android:textAppearance="@android:style/TextAppearance.DeviceDefault.DialogWindowTitle"
      android:accessibilityLiveRegion="polite"/>

    <!-- hint text ('PIN too short') -->
    <TextView
      android:id="@+id/hintText"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:gravity="center"
      android:lines="2" />

    <!-- error text ('PIN too short') -->
    <TextView
      android:id="@+id/errorText"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:gravity="center"
      android:lines="2"
      android:textColor="@android:color/holo_red_dark"/>

    <!-- Password entry field -->
    <EditText
      android:id="@+id/pin_entry"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_gravity="center"
      android:gravity="center"
      android:imeOptions="actionNext|flagNoExtractUi"
      android:inputType="numberPassword"
      android:textSize="24sp"/>
  </LinearLayout>

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:clipChildren="false"
    android:clipToPadding="false"
    android:gravity="end"
    android:orientation="horizontal">

    <!-- left : cancel -->
    <Button
      android:id="@+id/cancel_button"
      android:layout_width="0dp"
      android:layout_weight="1"
      android:layout_height="wrap_content"
      android:text="@string/change_pin_cancel_label"/>

    <!-- right : continue -->
    <Button
      android:id="@+id/next_button"
      android:layout_width="0dp"
      android:layout_weight="1"
      android:layout_height="wrap_content"
      android:text="@string/change_pin_continue_label"/>

  </LinearLayout>
</LinearLayout>