Remove DividerPreference and its corresponding usage.

Change-Id: I64ff1b2d6ab77cf40159e6ad157ab2464e7970ed
Fixes: 37250410
Test: visual, make RunSettingsRoboTests

res/values/attrs.xml

@@ -133,11 +133,6 @@
         <attr name="forWork" format="boolean" />
     </declare-styleable>
 
-    <declare-styleable name="DividerPreference">
-        <attr name="allowDividerAbove" format="boolean" />
-        <attr name="allowDividerBelow" format="boolean" />
-    </declare-styleable>
-
     <declare-styleable name="VideoPreference">
         <attr name="animation" format="reference" />
         <attr name="preview" format="reference" />

res/xml/data_usage.xml

@@ -28,7 +28,7 @@
             android:key="status_header"
             android:selectable="false" />
 
-        <com.android.settings.DividerPreference
+        <Preference
             android:key="limit_summary"
             android:selectable="false"
             settings:allowDividerBelow="true" />

src/com/android/settings/DividerPreference.java

@@ -1,65 +0,0 @@
-/*
- * 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.
- */
-
-package com.android.settings;
-
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.support.v7.preference.Preference;
-import android.support.v7.preference.PreferenceViewHolder;
-import android.util.AttributeSet;
-
-@Deprecated
-public class DividerPreference extends Preference {
-
-    private Boolean mAllowAbove;
-    private Boolean mAllowBelow;
-
-    public DividerPreference(Context context, AttributeSet attrs) {
-        super(context, attrs);
-        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.DividerPreference, 0, 0);
-        if (a.hasValue(R.styleable.DividerPreference_allowDividerAbove)) {
-            mAllowAbove = a.getBoolean(R.styleable.DividerPreference_allowDividerAbove, false);
-        }
-        if (a.hasValue(R.styleable.DividerPreference_allowDividerBelow)) {
-            mAllowBelow = a.getBoolean(R.styleable.DividerPreference_allowDividerBelow, false);
-        }
-        a.recycle();
-    }
-
-    public DividerPreference(Context context) {
-        this(context, null /* attrs */);
-    }
-
-    public void setDividerAllowedAbove(boolean allowed) {
-        mAllowAbove = allowed;
-        notifyChanged();
-    }
-
-    public void setDividerAllowedBelow(boolean allowed) {
-        mAllowBelow = allowed;
-        notifyChanged();
-    }
-
-    @Override
-    public void onBindViewHolder(PreferenceViewHolder holder) {
-        super.onBindViewHolder(holder);
-        if (mAllowAbove != null) {
-            holder.setDividerAllowedAbove(mAllowAbove);
-        }
-        if (mAllowBelow != null) {
-            holder.setDividerAllowedBelow(mAllowBelow);
-        }
-    }
-}

src/com/android/settings/applications/PremiumSmsAccess.java

@@ -28,7 +28,6 @@ import android.view.View;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.internal.telephony.SmsUsageMonitor;
-import com.android.settings.DividerPreference;
 import com.android.settings.R;
 import com.android.settings.applications.AppStateBaseBridge.Callback;
 import com.android.settings.applications.AppStateSmsPremBridge.SmsState;
@@ -38,6 +37,7 @@ import com.android.settingslib.applications.ApplicationsState;
 import com.android.settingslib.applications.ApplicationsState.AppEntry;
 import com.android.settingslib.applications.ApplicationsState.Callbacks;
 import com.android.settingslib.applications.ApplicationsState.Session;
+import com.android.settingslib.widget.FooterPreference;
 
 import java.util.ArrayList;
 
@@ -141,11 +141,9 @@ public class PremiumSmsAccess extends EmptyTextSettings implements Callback, Cal
             screen.addPreference(smsPreference);
         }
         if (apps.size() != 0) {
-            DividerPreference summary = new DividerPreference(getPrefContext());
+            FooterPreference footer = new FooterPreference(getPrefContext());
-            summary.setSelectable(false);
+            footer.setTitle(R.string.premium_sms_warning);
-            summary.setSummary(R.string.premium_sms_warning);
+            screen.addPreference(footer);
-            summary.setDividerAllowedAbove(true);
-            screen.addPreference(summary);
         }
 
         if (!usePreferenceScreenTitle()) {