Part1: Show the restricted lock icon in place of the pref widget.

Add summary strings used for switch prefs if disabled by admin.

Bug: 25603665
Bug: 27263775
Change-Id: I88c2dd2e024f92da107bedc645641e285796d51f

packages/SettingsLib/res/layout/restricted_icon.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 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.
+-->
+<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/restricted_icon"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:src="@drawable/ic_settings_lock_outline"
+    android:gravity="end|center_vertical" />

packages/SettingsLib/res/layout/restricted_switch_widget.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 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.
+-->
+<merge xmlns:android="http://schemas.android.com/apk/res/android">
+    <ImageView xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/restricted_icon"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:src="@drawable/ic_settings_lock_outline"
+        android:gravity="end|center_vertical" />
+    <!-- Based off frameworks/base/core/res/res/layout/preference_widget_switch.xml -->
+    <Switch xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+android:id/switch_widget"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:focusable="false"
+        android:clickable="false"
+        android:background="@null" />
+</merge>

packages/SettingsLib/res/values/strings.xml

@@ -773,6 +773,11 @@
     <!-- Summary for settings preference disabled by administrator [CHAR LIMIT=50] -->
     <string name="disabled_by_admin_summary_text">Controlled by admin</string>
 
+    <!-- Summary for switch preference to denote it is switched on [CHAR LIMIT=50] -->
+    <string name="enabled_by_admin">Enabled by administrator</string>
+    <!-- Summary for switch preference to denote it is switched on [CHAR LIMIT=50] -->
+    <string name="disabled_by_admin">Disabled by administrator</string>
+
     <!-- Option in navigation drawer that leads to Settings main screen [CHAR LIMIT=30] -->
     <string name="home">Home</string>
 

packages/SettingsLib/src/com/android/settingslib/RestrictedPreference.java

@@ -23,6 +23,7 @@ import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceManager;
 import android.support.v7.preference.PreferenceViewHolder;
 import android.util.AttributeSet;
+import android.view.View;
 
 import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
 
@@ -36,6 +37,7 @@ public class RestrictedPreference extends Preference {
     public RestrictedPreference(Context context, AttributeSet attrs,
             int defStyleAttr, int defStyleRes) {
         super(context, attrs, defStyleAttr, defStyleRes);
+        setWidgetLayoutResource(R.layout.restricted_icon);
         mHelper = new RestrictedPreferenceHelper(context, this, attrs);
     }
 
@@ -56,6 +58,10 @@ public class RestrictedPreference extends Preference {
     public void onBindViewHolder(PreferenceViewHolder holder) {
         super.onBindViewHolder(holder);
         mHelper.onBindViewHolder(holder);
+        final View restrictedIcon = holder.findViewById(R.id.restricted_icon);
+        if (restrictedIcon != null) {
+            restrictedIcon.setVisibility(isDisabledByAdmin() ? View.VISIBLE : View.GONE);
+        }
     }
 
     @Override

packages/SettingsLib/src/com/android/settingslib/RestrictedPreferenceHelper.java

@@ -91,12 +91,8 @@ public class RestrictedPreferenceHelper {
      * Modify PreferenceViewHolder to add padlock if restriction is disabled.
      */
     public void onBindViewHolder(PreferenceViewHolder holder) {
-        final TextView titleView = (TextView) holder.findViewById(android.R.id.title);
-        if (titleView != null) {
-            RestrictedLockUtils.setTextViewPadlock(mContext, titleView, mDisabledByAdmin);
-            if (mDisabledByAdmin) {
-                holder.itemView.setEnabled(true);
-            }
+        if (mDisabledByAdmin) {
+            holder.itemView.setEnabled(true);
         }
         if (mUseAdminDisabledSummary) {
             final TextView summaryView = (TextView) holder.findViewById(android.R.id.summary);

packages/SettingsLib/src/com/android/settingslib/RestrictedSwitchPreference.java

@@ -23,6 +23,8 @@ import android.support.v7.preference.PreferenceManager;
 import android.support.v7.preference.PreferenceViewHolder;
 import android.support.v14.preference.SwitchPreference;
 import android.util.AttributeSet;
+import android.view.View;
+import android.widget.TextView;
 
 import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
 
@@ -36,6 +38,7 @@ public class RestrictedSwitchPreference extends SwitchPreference {
     public RestrictedSwitchPreference(Context context, AttributeSet attrs,
             int defStyleAttr, int defStyleRes) {
         super(context, attrs, defStyleAttr, defStyleRes);
+        setWidgetLayoutResource(R.layout.restricted_switch_widget);
         mHelper = new RestrictedPreferenceHelper(context, this, attrs);
     }
 
@@ -56,6 +59,20 @@ public class RestrictedSwitchPreference extends SwitchPreference {
     public void onBindViewHolder(PreferenceViewHolder holder) {
         super.onBindViewHolder(holder);
         mHelper.onBindViewHolder(holder);
+        final View restrictedIcon = holder.findViewById(R.id.restricted_icon);
+        final View switchWidget = holder.findViewById(android.R.id.switch_widget);
+        if (restrictedIcon != null) {
+            restrictedIcon.setVisibility(isDisabledByAdmin() ? View.VISIBLE : View.GONE);
+        }
+        if (switchWidget != null) {
+            switchWidget.setVisibility(isDisabledByAdmin() ? View.GONE : View.VISIBLE);
+        }
+        final TextView summaryView = (TextView) holder.findViewById(android.R.id.summary);
+        if (summaryView != null && isDisabledByAdmin()) {
+            summaryView.setText(
+                    isChecked() ? R.string.enabled_by_admin : R.string.disabled_by_admin);
+            summaryView.setVisibility(View.VISIBLE);
+        }
     }
 
     @Override