res/layout/select_certificate_usage_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2019 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.
  -->

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="16dp">

        <LinearLayout
            android:id="@+id/certificate_usage_group"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="@string/select_certificate_usage_title"
                style="@style/dialog_title"/>

            <View
                android:layout_width="match_parent"
                android:layout_height="1dip"
                android:background="?android:attr/dividerHorizontal"/>

            <RadioGroup
                android:id="@+id/certificate_usage"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="16dp">

                <RadioButton
                    android:id="@+id/user_certificate"
                    style="@style/dialog_button"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="@string/user_certificate"
                    android:checked="true"/>

                <RadioButton
                    android:id="@+id/wifi_certificate"
                    style="@style/dialog_button"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="@string/wifi_certificate"/>

            </RadioGroup>

            <View
                android:layout_width="match_parent"
                android:layout_height="1dip"
                android:background="?android:attr/dividerHorizontal"/>

        </LinearLayout>

    </LinearLayout>
</ScrollView>