Add CardPreference in battery settings page

This is MatrialCardView styled preference that only support
icon, title and summary.

Bug: 119618813
Test: RunSettingsRoboTests
Change-Id: Ibbf9eb2a01c8ee0579e1553ead6e43e96531c92a

res/layout/card_preference_layout.xml

@@ -0,0 +1,30 @@
+<?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.
+  -->
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+    <com.google.android.material.card.MaterialCardView
+        android:id="@+id/container"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="8dp"
+        style="@style/ContextualCardStyle">
+        <include layout="@layout/preference_material" />
+    </com.google.android.material.card.MaterialCardView>
+</FrameLayout>

res/values/attrs.xml

@@ -54,6 +54,8 @@
 
     <attr name="slicePreferenceStyle" format="reference" />
 
+    <attr name="cardPreferenceStyle" format="reference" />
+
     <attr name="footerPreferenceStyle" format="reference" />
 
     <declare-styleable name="FixedLineSummaryPreference">

res/values/styles_preference.xml

@@ -21,6 +21,7 @@
 
     <style name="PreferenceTheme" parent="@style/PreferenceThemeOverlay.SettingsBase">
         <item name="apnPreferenceStyle">@style/ApnPreference</item>
+        <item name="cardPreferenceStyle">@style/CardPreference</item>
         <item name="slicePreferenceStyle">@style/SlicePreference</item>
         <item name="seekBarPreferenceStyle">@style/SettingsSeekBarPreference</item>
         <item name="twoStateButtonPreferenceStyle">@style/TwoStateButtonPreference</item>
@@ -35,6 +36,10 @@
         <item name="android:layout">@layout/apn_preference_layout</item>
     </style>
 
+    <style name="CardPreference" parent="@style/Preference.Material">
+        <item name="android:layout">@layout/card_preference_layout</item>
+    </style>
+
     <style name="SlicePreference" parent="@style/Preference.Material">
         <item name="android:layout">@layout/slice_preference_layout</item>
     </style>

src/com/android/settings/fuelgauge/batterytip/tips/BatteryTip.java

@@ -26,6 +26,7 @@ import androidx.annotation.IntDef;
 import androidx.annotation.VisibleForTesting;
 import androidx.preference.Preference;
 
+import com.android.settings.widget.CardPreference;
 import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
 
 import java.lang.annotation.Retention;
@@ -147,7 +148,7 @@ public abstract class BatteryTip implements Comparable<BatteryTip>, Parcelable {
     public abstract void log(Context context, MetricsFeatureProvider metricsFeatureProvider);
 
     public Preference buildPreference(Context context) {
-        Preference preference = new Preference(context);
+        Preference preference = new CardPreference(context);
 
         preference.setKey(getKey());
         preference.setTitle(getTitle(context));

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

@@ -0,0 +1,39 @@
+/*
+ * 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.
+ */
+
+package com.android.settings.widget;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import androidx.preference.Preference;
+
+import com.android.settings.R;
+
+import com.google.android.material.card.MaterialCardView;
+
+/**
+ * Preference that wrapped by {@link MaterialCardView}, only support to set icon, title and summary
+ */
+public class CardPreference extends Preference {
+    public CardPreference(Context context) {
+        this(context, null /* attrs */);
+    }
+
+    public CardPreference(Context context, AttributeSet attrs) {
+        super(context, attrs, R.attr.cardPreferenceStyle);
+    }
+}

tests/robotests/src/com/android/settings/widget/CardPreferenceTest.java

@@ -0,0 +1,49 @@
+/*
+ * 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.
+ */
+
+package com.android.settings.widget;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+
+import com.android.settings.R;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class CardPreferenceTest {
+
+    private Context mContext;
+    private CardPreference mCardPreference;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        mContext.setTheme(R.style.PreferenceTheme);
+        mCardPreference = new CardPreference(mContext);
+    }
+
+    @Test
+    public void getLayoutResource() {
+        assertThat(mCardPreference.getLayoutResource()).isEqualTo(R.layout.card_preference_layout);
+    }
+
+}