Add dialog for changing display name for mobile network

This CL adds a pencil/edit icon at the top of the mobile network details
page. When clicked, it brings up a dialog that allows the user to set
the display name used for that mobile network - this is most useful in
multi-SIM situations. This dialog also displays the mobile network
operator name and phone number which can help the user keep straight
which one they are renaming.

Bug: 122670283
Test: make RunSettingsRoboTests
Change-Id: Ifd63cfb66ce743bd5ba8a06b52229f06ed56b7bd

res/layout/dialog_mobile_network_rename.xml

@@ -0,0 +1,64 @@
+<?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="match_parent"
+        android:padding="@dimen/sim_content_padding">
+
+        <EditText
+            android:id="@+id/edittext"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:inputType="text"
+            android:maxLength="50"
+            android:singleLine="true">
+            <requestFocus/>
+        </EditText>
+
+        <TextView
+            style="@style/device_info_dialog_label"
+            android:id="@+id/operator_name_label"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/status_operator"/>
+        <TextView
+            style="@style/device_info_dialog_value"
+            android:id="@+id/operator_name_value"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/device_info_not_available"/>
+
+        <TextView
+            style="@style/device_info_dialog_label"
+            android:id="@+id/number_label"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/status_number_sim_status"/>
+        <TextView
+            style="@style/device_info_dialog_value"
+            android:id="@+id/number_value"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/device_info_not_available"/>
+
+    </LinearLayout>
+</ScrollView>

res/values/ids.xml

@@ -31,4 +31,7 @@
     <item type="id" name="action_drag_move_top" />
     <item type="id" name="action_drag_move_bottom" />
     <item type="id" name="action_drag_remove" />
+
+    <!-- For a menu item allowing users to edit a SIM display name -->
+    <item type="id" name="edit_sim_name" />
 </resources>

res/values/strings.xml

@@ -10446,6 +10446,14 @@
     <!-- Summary for an item in the page listing multiple mobile service subscriptions, indicating
          that service is inactive and is tied to an eSIM profile [CHAR LIMIT=40] -->
     <string name="mobile_network_inactive_esim">Inactive eSIM</string>
+    <!-- Title of a dialog that lets a user modify the display name used for a mobile network
+         subscription in various places in the Settings app. The default name is typically just the
+          carrier name, but especially in multi-SIM configurations users may want to use a different
+           name. [CHAR LIMIT=40] -->
+    <string name="mobile_network_sim_name">SIM name</string>
+    <!-- Label on the confirmation button of a dialog that lets a user set the display name of a
+         mobile network subscription [CHAR LIMIT=20] -->
+    <string name="mobile_network_sim_name_rename">Rename</string>
 
     <!-- Title for preferred network type [CHAR LIMIT=NONE] -->
     <string name="preferred_network_mode_title">Preferred network type</string>