Adjust layout for Slice InputRange

-Make title to slider aligned
-Add test cases

Bug: 147462114
Test: make -j50 RunSettingsRoboTests
Change-Id: Ib1d076f77eae75e4f861a80873117b6254729fe5

res/layout/panel_slice_slider_row.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 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.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
+
+    <androidx.slice.widget.SliceView
+        android:id="@+id/slice_view"
+        style="@style/SliceViewSliderStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingStart="8dp"
+        android:paddingEnd="8dp"/>
+</LinearLayout>

res/values/styles.xml

@@ -512,6 +512,17 @@
         <item name="android:background">?android:attr/colorBackgroundFloating</item>
     </style>
 
+    <style name="SliceViewSliderStyle">
+        <item name="rowStyle">@style/SliceRowSliderStyle</item>
+        <item name="android:background">?android:attr/colorBackgroundFloating</item>
+    </style>
+
+    <style name="SliceRowSliderStyle" parent="SliceRowStyle">
+        <!-- Align text with slider -->
+        <item name="titleStartPadding">12dp</item>
+        <item name="subContentStartPadding">12dp</item>
+    </style>
+
     <style name="ContextualCardSliceViewStyle" parent="SliceViewStyle">
         <item name="android:background">@color/contextual_card_background</item>
     </style>

src/com/android/settings/panel/MediaOutputGroupPanel.java

@@ -156,4 +156,9 @@ public class MediaOutputGroupPanel implements PanelContent, LocalMediaManager.De
     public int getMetricsCategory() {
         return SettingsEnums.PANEL_MEDIA_OUTPUT_GROUP;
     }
+
+    @Override
+    public int getViewType() {
+        return PanelContent.VIEW_TYPE_SLIDER;
+    }
 }

src/com/android/settings/panel/MediaOutputPanel.java

@@ -240,4 +240,9 @@ public class MediaOutputPanel implements PanelContent, LocalMediaManager.DeviceC
         mLocalMediaManager.unregisterCallback(this);
         mLocalMediaManager.stopScan();
     }
+
+    @Override
+    public int getViewType() {
+        return PanelContent.VIEW_TYPE_SLIDER;
+    }
 }

src/com/android/settings/panel/PanelContent.java

@@ -30,6 +30,8 @@ import java.util.List;
  */
 public interface PanelContent extends Instrumentable {
 
+    int VIEW_TYPE_SLIDER = 1;
+
     /**
      * @return a icon for the title of the Panel.
      */
@@ -101,4 +103,11 @@ public interface PanelContent extends Instrumentable {
      * @param callback the callback to add.
      */
     default void registerCallback(PanelContentCallback callback) {}
+
+    /**
+     * @return a view type to customized it. 0 for default layout.
+     */
+    default int getViewType() {
+        return 0;
+    }
 }

src/com/android/settings/panel/PanelFragment.java

@@ -411,6 +411,10 @@ public class PanelFragment extends Fragment {
         };
     }
 
+    int getPanelViewType() {
+        return mPanel.getViewType();
+    }
+
     class LocalPanelCallback implements PanelContentCallback {
 
         @Override

src/com/android/settings/panel/PanelSlicesAdapter.java

@@ -69,7 +69,12 @@ public class PanelSlicesAdapter
     public SliceRowViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int viewType) {
         final Context context = viewGroup.getContext();
         final LayoutInflater inflater = LayoutInflater.from(context);
-        final View view = inflater.inflate(R.layout.panel_slice_row, viewGroup, false);
+        View view;
+        if (viewType == PanelContent.VIEW_TYPE_SLIDER) {
+            view = inflater.inflate(R.layout.panel_slice_slider_row, viewGroup, false);
+        } else {
+            view = inflater.inflate(R.layout.panel_slice_row, viewGroup, false);
+        }
 
         return new SliceRowViewHolder(view);
     }
@@ -87,6 +92,11 @@ public class PanelSlicesAdapter
         return Math.min(mSliceLiveData.size(), MAX_NUM_OF_SLICES);
     }
 
+    @Override
+    public int getItemViewType(int position) {
+        return mPanelFragment.getPanelViewType();
+    }
+
     /**
      * Return the available data from the adapter. If the number of Slices over the max number
      * allowed, the list will only have the first MAX_NUM_OF_SLICES of slices.

src/com/android/settings/panel/VolumePanel.java

@@ -73,4 +73,9 @@ public class VolumePanel implements PanelContent {
     public int getMetricsCategory() {
         return SettingsEnums.PANEL_VOLUME;
     }
+
+    @Override
+    public int getViewType() {
+        return PanelContent.VIEW_TYPE_SLIDER;
+    }
 }

tests/robotests/src/com/android/settings/panel/FakePanelContent.java

@@ -44,6 +44,7 @@ public class FakePanelContent implements PanelContent {
 
     private CharSequence mSubTitle;
     private IconCompat mIcon;
+    private int mViewType;
 
     @Override
     public IconCompat getIcon() {
@@ -82,4 +83,13 @@ public class FakePanelContent implements PanelContent {
     public int getMetricsCategory() {
         return SettingsEnums.TESTING;
     }
+
+    public void setViewType(int viewType) {
+        mViewType = viewType;
+    }
+
+    @Override
+    public int getViewType() {
+        return mViewType;
+    }
 }

tests/robotests/src/com/android/settings/panel/PanelSlicesAdapterTest.java

@@ -16,19 +16,23 @@
 
 package com.android.settings.panel;
 
+import static com.android.settings.panel.PanelContent.VIEW_TYPE_SLIDER;
 import static com.android.settings.panel.PanelSlicesAdapter.MAX_NUM_OF_SLICES;
 import static com.android.settings.slices.CustomSliceRegistry.MEDIA_OUTPUT_INDICATOR_SLICE_URI;
 
 import static com.google.common.truth.Truth.assertThat;
 
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import android.content.Context;
 import android.net.Uri;
+import android.view.LayoutInflater;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 
@@ -36,23 +40,31 @@ import androidx.lifecycle.LiveData;
 import androidx.slice.Slice;
 
 import com.android.settings.R;
+import com.android.settings.panel.PanelSlicesAdapter.SliceRowViewHolder;
 import com.android.settings.testutils.FakeFeatureFactory;
 
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
 import org.mockito.MockitoAnnotations;
 import org.robolectric.Robolectric;
 import org.robolectric.RobolectricTestRunner;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.android.controller.ActivityController;
+import org.robolectric.annotation.Config;
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
 
 import java.util.LinkedHashMap;
 import java.util.Map;
 
 @RunWith(RobolectricTestRunner.class)
+@Config(shadows = PanelSlicesAdapterTest.ShadowLayoutInflater.class)
 public class PanelSlicesAdapterTest {
 
+    private static LayoutInflater sLayoutInflater;
+
     private Context mContext;
     private PanelFragment mPanelFragment;
     private PanelFeatureProvider mPanelFeatureProvider;
@@ -104,7 +116,7 @@ public class PanelSlicesAdapterTest {
         final PanelSlicesAdapter adapter =
                 new PanelSlicesAdapter(mPanelFragment, mData, 0 /* metrics category */);
         final ViewGroup view = new FrameLayout(mContext);
-        final PanelSlicesAdapter.SliceRowViewHolder viewHolder =
+        final SliceRowViewHolder viewHolder =
                 adapter.onCreateViewHolder(view, 0);
 
         assertThat(adapter.getItemCount()).isEqualTo(MAX_NUM_OF_SLICES);
@@ -119,11 +131,52 @@ public class PanelSlicesAdapterTest {
                 new PanelSlicesAdapter(mPanelFragment, mData, 0 /* metrics category */);
         final int position = 0;
         final ViewGroup view = new FrameLayout(mContext);
-        final PanelSlicesAdapter.SliceRowViewHolder viewHolder =
+        final SliceRowViewHolder viewHolder =
                 adapter.onCreateViewHolder(view, 0 /* view type*/);
 
         adapter.onBindViewHolder(viewHolder, position);
 
         assertThat(viewHolder.isDividerAllowedAbove()).isFalse();
     }
+
+    @Test
+    public void onCreateViewHolder_viewTypeSlider_verifyLayout() {
+        final PanelSlicesAdapter adapter =
+                new PanelSlicesAdapter(mPanelFragment, mData, 0);
+        final ViewGroup view = new FrameLayout(mContext);
+        final ArgumentCaptor<Integer> intArgumentCaptor = ArgumentCaptor.forClass(Integer.class);
+
+        adapter.onCreateViewHolder(view, VIEW_TYPE_SLIDER);
+
+        verify(sLayoutInflater).inflate(intArgumentCaptor.capture(), eq(view), eq(false));
+        assertThat(intArgumentCaptor.getValue()).isEqualTo(R.layout.panel_slice_slider_row);
+    }
+
+    @Test
+    public void onCreateViewHolder_viewTypeDefault_verifyLayout() {
+        final PanelSlicesAdapter adapter =
+                new PanelSlicesAdapter(mPanelFragment, mData, 0);
+        final ViewGroup view = new FrameLayout(mContext);
+        final ArgumentCaptor<Integer> intArgumentCaptor = ArgumentCaptor.forClass(Integer.class);
+
+        adapter.onCreateViewHolder(view, 0);
+
+        verify(sLayoutInflater).inflate(intArgumentCaptor.capture(), eq(view), eq(false));
+        assertThat(intArgumentCaptor.getValue()).isEqualTo(R.layout.panel_slice_row);
+    }
+
+    @Implements(LayoutInflater.class)
+    public static class ShadowLayoutInflater {
+
+        @Implementation
+        public static LayoutInflater from(Context context) {
+            final LayoutInflater inflater =
+                    (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            if (inflater == null) {
+                throw new AssertionError("LayoutInflater not found.");
+            }
+            sLayoutInflater = spy(inflater);
+            return sLayoutInflater;
+        }
+    }
 }