app_Settings/res/xml/mobile_network_settings.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2008 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"
    xmlns:settings="http://schemas.android.com/apk/res-auto"
    android:key="mobile_network_pref_screen"
    settings:initialExpandedChildrenCount="4">

    <Preference
        android:key="cdma_lte_data_service_key"
        android:title="@string/cdma_lte_data_service"
        settings:controller="com.android.settings.network.telephony.DataServiceSetupPreferenceController">
    </Preference>

    <SwitchPreference
        android:key="mobile_data_enable"
        android:title="@string/mobile_data_settings_title"
        android:summary="@string/mobile_data_settings_summary"
        settings:controller="com.android.settings.network.telephony.MobileDataPreferenceController"/>

    <com.android.settingslib.RestrictedSwitchPreference
        android:key="button_roaming_key"
        android:title="@string/roaming"
        android:persistent="false"
        android:summaryOn="@string/roaming_enable"
        android:summaryOff="@string/roaming_disable"
        settings:userRestriction="no_data_roaming"
        settings:controller="com.android.settings.network.telephony.RoamingPreferenceController"/>

    <Preference
        android:key="data_usage_summary"
        android:title="@string/mobile_data_usage_title"
        settings:controller="com.android.settings.network.telephony.DataUsagePreferenceController"/>

    <SwitchPreference
        android:key="enhanced_4g_lte"
        android:title="@string/enhanced_4g_lte_mode_title"
        android:persistent="false"
        android:summary="@string/enhanced_4g_lte_mode_summary"
        settings:controller="com.android.settings.network.telephony.Enhanced4gLtePreferenceController"/>

    <ListPreference
        android:key="preferred_network_mode_key"
        android:title="@string/preferred_network_mode_title"
        android:summary="@string/preferred_network_mode_summary"
        android:entries="@array/preferred_network_mode_choices"
        android:entryValues="@array/preferred_network_mode_values"
        android:dialogTitle="@string/preferred_network_mode_dialogtitle"
        settings:controller="com.android.settings.network.telephony.PreferredNetworkModePreferenceController"/>

    <ListPreference
        android:key="enabled_networks_key"
        android:title="@string/preferred_network_mode_title"
        android:summary="@string/preferred_network_mode_summary"
        android:entries="@array/enabled_networks_choices"
        android:entryValues="@array/enabled_networks_values"
        android:dialogTitle="@string/preferred_network_mode_dialogtitle"
        settings:controller="com.android.settings.network.telephony.EnabledNetworkModePreferenceController"/>

    <Preference
        android:key="carrier_settings_euicc_key"
        android:title="@string/carrier_settings_euicc"
        settings:controller="com.android.settings.network.telephony.EuiccPreferenceController" />

    <PreferenceCategory
        android:key="calling_category"
        android:title="@string/call_category"
        settings:searchable="false">

        <PreferenceScreen
            android:key="wifi_calling"
            android:title="@string/wifi_calling_settings_title"
            android:summary="@string/wifi_calling_summary"
            settings:controller="com.android.settings.network.telephony.WifiCallingPreferenceController" >
            <intent android:action="android.intent.action.MAIN"
                    android:targetPackage="com.android.settings"
                    android:targetClass="com.android.settings.Settings$WifiCallingSettingsActivity">
                        <extra android:name="show_drawer_menu" android:value="true" />
            </intent>
        </PreferenceScreen>

        <SwitchPreference
            android:key="video_calling_key"
            android:title="@string/video_calling_settings_title"
            android:persistent="true"
            settings:controller="com.android.settings.network.telephony.VideoCallingPreferenceController" />

    </PreferenceCategory>

    <com.android.settings.network.telephony.cdma.CdmaListPreference
        android:key="cdma_system_select_key"
        android:title="@string/cdma_system_select_title"
        android:summary="@string/cdma_system_select_summary"
        android:entries="@array/cdma_system_select_choices"
        android:entryValues="@array/cdma_system_select_values"
        android:dialogTitle="@string/cdma_system_select_dialogtitle"
        settings:controller="com.android.settings.network.telephony.cdma.CdmaSystemSelectPreferenceController"/>

    <com.android.settings.network.telephony.cdma.CdmaListPreference
        android:key="cdma_subscription_key"
        android:title="@string/cdma_subscription_title"
        android:summary="@string/cdma_subscription_summary"
        android:entries="@array/cdma_subscription_choices"
        android:entryValues="@array/cdma_subscription_values"
        android:dialogTitle="@string/cdma_subscription_dialogtitle"
        settings:controller="com.android.settings.network.telephony.cdma.CdmaSubscriptionPreferenceController"/>

    <PreferenceCategory
        android:key="network_operators_category_key"
        android:title="@string/network_operator_category"
        settings:controller="com.android.settings.widget.PreferenceCategoryController">

        <SwitchPreference
            android:key="auto_select_key"
            android:title="@string/select_automatically"
            settings:controller="com.android.settings.network.telephony.gsm.AutoSelectPreferenceController"/>

        <Preference
            android:key="choose_network_key"
            android:title="@string/choose_network_title"
            android:fragment="com.android.phone.NetworkSelectSetting"
            settings:controller="com.android.settings.network.telephony.gsm.OpenNetworkSelectPagePreferenceController"/>
    </PreferenceCategory>

    <!--We want separate APN setting from reset of settings because we want user to change it with caution-->
    <com.android.settingslib.RestrictedPreference
        android:key="telephony_apn_key"
        android:persistent="false"
        android:title="@string/mobile_network_apn_title"
        settings:allowDividerAbove="true"
        settings:controller="com.android.settings.network.telephony.ApnPreferenceController"/>

    <Preference
        android:key="carrier_settings_key"
        android:title="@string/carrier_settings_title"
        settings:controller="com.android.settings.network.telephony.CarrierPreferenceController">
    </Preference>

</PreferenceScreen>