Add dividers on a few preferences

Fix: 36023418
Fix: 36058273

Test: visual
- On top of emergency preference
- On top of footer preference

Change-Id: Iefbbf0ad410d46c466f919ecb60b572dd6f1ea28

res/layout/preference_footer.xml

@@ -20,7 +20,6 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:minHeight="?android:attr/listPreferredItemHeight"
-    android:gravity="center_vertical"
     android:paddingStart="?android:attr/listPreferredItemPaddingStart"
     android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
     android:background="?android:attr/selectableItemBackground"
@@ -31,12 +30,12 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:minWidth="60dp"
-        android:gravity="start|center_vertical"
+        android:gravity="start|top"
         android:orientation="horizontal"
         android:paddingEnd="12dp"
-        android:paddingTop="4dp"
+        android:paddingTop="20dp"
         android:paddingBottom="4dp">
-        <com.android.internal.widget.PreferenceImageView
+        <ImageView
             android:id="@android:id/icon"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content" />

res/values/attrs.xml

@@ -92,6 +92,8 @@
 
     <attr name="apnPreferenceStyle" format="reference" />
 
+    <attr name="footerPreferenceStyle" format="reference" />
+
     <!-- For Search -->
     <declare-styleable name="Preference">
         <attr name="keywords" format="string" />

res/values/styles_preference.xml

@@ -38,6 +38,11 @@
         <item name="android:layout">@layout/apn_preference_layout</item>
     </style>
 
+    <style name="FooterPreference" parent="SettingsPreference">
+        <item name="android:layout">@layout/preference_footer</item>
+        <item name="allowDividerAbove">true</item>
+    </style>
+
     <style name="EditTextPreference"
            parent="@style/Preference.DialogPreference.EditTextPreference.Material">
         <item name="allowDividerAbove">false</item>

res/values/themes.xml

@@ -81,6 +81,7 @@
         <!-- Parent path frameworks/support/v14/preference/res/values/themes.xml -->
         <item name="android:scrollbars">vertical</item>
         <item name="apnPreferenceStyle">@style/ApnPreference</item>
+        <item name="footerPreferenceStyle">@style/FooterPreference</item>
         <item name="dialogPreferenceStyle">@style/SettingsDialogPreference</item>
         <item name="dropdownPreferenceStyle">@style/SettingsDropdownPreference</item>
         <item name="editTextPreferenceStyle">@style/EditTextPreference</item>

res/xml/user_and_accounts_settings.xml

@@ -23,7 +23,8 @@
     <Preference
         android:key="emergency_info"
         android:title="@string/emergency_info_title"
-        android:order="100"/>
+        android:order="100"
+        settings:allowDividerAbove="true"/>
 
     <PreferenceCategory
         android:key="account_configuration_header"

src/com/android/settings/widget/FooterPreference.java

@@ -17,6 +17,7 @@
 package com.android.settings.widget;
 
 import android.content.Context;
+import android.support.v4.content.res.TypedArrayUtils;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceViewHolder;
 import android.text.method.LinkMovementMethod;
@@ -34,36 +35,24 @@ public class FooterPreference extends Preference {
     static final int ORDER_FOOTER = Integer.MAX_VALUE - 1;
     static final String KEY_FOOTER = "footer_preference";
 
-    public FooterPreference(Context context, AttributeSet attrs,
-            int defStyleAttr, int defStyleRes) {
-        super(context, attrs, defStyleAttr, defStyleRes);
-        init();
-    }
-
-    public FooterPreference(Context context, AttributeSet attrs, int defStyleAttr) {
-        super(context, attrs, defStyleAttr);
-        init();
-    }
-
     public FooterPreference(Context context, AttributeSet attrs) {
-        super(context, attrs);
+        super(context, attrs, TypedArrayUtils.getAttr(
+                context, R.attr.footerPreferenceStyle, android.R.attr.preferenceStyle));
         init();
     }
 
     public FooterPreference(Context context) {
-        super(context);
-        init();
+        this(context, null);
     }
 
     @Override
     public void onBindViewHolder(PreferenceViewHolder holder) {
         super.onBindViewHolder(holder);
-        TextView title = (TextView) holder.itemView.findViewById(android.R.id.title);
+        TextView title = holder.itemView.findViewById(android.R.id.title);
         title.setMovementMethod(new LinkMovementMethod());
     }
 
     private void init() {
-        setLayoutResource(R.layout.preference_footer);
         setIcon(R.drawable.ic_info_outline_24dp);
         setKey(KEY_FOOTER);
         setOrder(ORDER_FOOTER);