Stop showing battery card in homepage

In previous design, we add default card feature for "me Card". But "me
Card" is being built by another team. We have removed related cards from
default card feature in ag/5394464 but battery card. Now, remove it.

Fixes: 119819851
Test: robotests
Change-Id: I445546024c80c227abce649008ec648340577e99

src/com/android/settings/homepage/contextualcards/ContextualCardLoader.java

@@ -23,7 +23,6 @@ import static androidx.slice.widget.SliceLiveData.SUPPORTED_SPECS;
 import android.content.ContentProviderClient;
 import android.content.ContentResolver;
 import android.content.Context;
-import android.content.pm.PackageManager;
 import android.database.ContentObserver;
 import android.database.Cursor;
 import android.net.Uri;
@@ -35,7 +34,6 @@ import androidx.annotation.NonNull;
 import androidx.annotation.VisibleForTesting;
 import androidx.slice.Slice;
 
-import com.android.settings.homepage.contextualcards.deviceinfo.BatterySlice;
 import com.android.settings.homepage.contextualcards.slices.ConnectedDeviceSlice;
 import com.android.settings.wifi.WifiSlice;
 import com.android.settingslib.utils.AsyncLoaderCompat;
@@ -52,11 +50,17 @@ public class ContextualCardLoader extends AsyncLoaderCompat<List<ContextualCard>
 
     private static final String TAG = "ContextualCardLoader";
 
-    private Context mContext;
-
-    public interface CardContentLoaderListener {
-        void onFinishCardLoading(List<ContextualCard> contextualCards);
+    private final ContentObserver mObserver = new ContentObserver(
+            new Handler(Looper.getMainLooper())) {
+        @Override
+        public void onChange(boolean selfChange) {
+            if (isStarted()) {
+                forceLoad();
             }
+        }
+    };
+
+    private Context mContext;
 
     ContextualCardLoader(Context context) {
         super(context);
@@ -86,9 +90,7 @@ public class ContextualCardLoader extends AsyncLoaderCompat<List<ContextualCard>
     public List<ContextualCard> loadInBackground() {
         final List<ContextualCard> result = new ArrayList<>();
         try (Cursor cursor = getContextualCardsFromProvider()) {
-            if (cursor.getCount() == 0) {
-                result.addAll(createStaticCards());
-            } else {
+            if (cursor.getCount() > 0) {
                 for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {
                     final ContextualCard card = new ContextualCard(cursor);
                     if (card.isCustomCard()) {
@@ -130,24 +132,6 @@ public class ContextualCardLoader extends AsyncLoaderCompat<List<ContextualCard>
         return CardDatabaseHelper.getInstance(mContext).getContextualCards();
     }
 
-    @VisibleForTesting
-    List<ContextualCard> createStaticCards() {
-        final long appVersionCode = getAppVersionCode();
-        final String packageName = mContext.getPackageName();
-        final double rankingScore = 0.0;
-        final List<ContextualCard> result = new ArrayList();
-        result.add(new ContextualCard.Builder()
-                .setSliceUri(BatterySlice.BATTERY_CARD_URI)
-                .setName(BatterySlice.PATH_BATTERY_INFO)
-                .setPackageName(packageName)
-                .setRankingScore(rankingScore)
-                .setAppVersion(appVersionCode)
-                .setCardType(ContextualCard.CardType.SLICE)
-                .setIsHalfWidth(false)
-                .build());
-        return result;
-    }
-
     @VisibleForTesting
     List<ContextualCard> filterEligibleCards(List<ContextualCard> candidates) {
         return candidates.stream().filter(card -> isCardEligibleToDisplay(card))
@@ -191,23 +175,7 @@ public class ContextualCardLoader extends AsyncLoaderCompat<List<ContextualCard>
                 .count();
     }
 
-    private long getAppVersionCode() {
-        try {
-            return mContext.getPackageManager().getPackageInfo(mContext.getPackageName(),
-                    0 /* flags */).getLongVersionCode();
-        } catch (PackageManager.NameNotFoundException e) {
-            Log.e(TAG, "Invalid package name for context", e);
+    public interface CardContentLoaderListener {
+        void onFinishCardLoading(List<ContextualCard> contextualCards);
     }
-        return -1L;
-    }
-
-    private final ContentObserver mObserver = new ContentObserver(
-            new Handler(Looper.getMainLooper())) {
-        @Override
-        public void onChange(boolean selfChange) {
-            if (isStarted()) {
-                forceLoad();
-            }
-        }
-    };
 }

src/com/android/settings/homepage/contextualcards/SettingsContextualCardProvider.java

@@ -20,7 +20,6 @@ import static android.provider.SettingsSlicesContract.KEY_WIFI;
 
 import android.annotation.Nullable;
 
-import com.android.settings.homepage.contextualcards.deviceinfo.BatterySlice;
 import com.android.settings.homepage.contextualcards.slices.BatteryFixSlice;
 import com.android.settings.homepage.contextualcards.slices.ConnectedDeviceSlice;
 import com.android.settings.homepage.contextualcards.slices.LowStorageSlice;
@@ -44,12 +43,6 @@ public class SettingsContextualCardProvider extends ContextualCardProvider {
                         .setCardName(KEY_WIFI)
                         .setCardCategory(ContextualCard.Category.IMPORTANT)
                         .build();
-        final ContextualCard batteryInfoCard =
-                ContextualCard.newBuilder()
-                        .setSliceUri(BatterySlice.BATTERY_CARD_URI.toString())
-                        .setCardName(BatterySlice.PATH_BATTERY_INFO)
-                        .setCardCategory(ContextualCard.Category.DEFAULT)
-                        .build();
         final ContextualCard connectedDeviceCard =
                 ContextualCard.newBuilder()
                         .setSliceUri(ConnectedDeviceSlice.CONNECTED_DEVICE_URI.toString())
@@ -70,7 +63,6 @@ public class SettingsContextualCardProvider extends ContextualCardProvider {
                         .build();
         final ContextualCardList cards = ContextualCardList.newBuilder()
                 .addCard(wifiCard)
-                .addCard(batteryInfoCard)
                 .addCard(connectedDeviceCard)
                 .addCard(lowStorageCard)
                 .addCard(batteryFixCard)

tests/robotests/src/com/android/settings/homepage/contextualcards/ContextualCardLoaderTest.java

@@ -40,7 +40,6 @@ import org.robolectric.RuntimeEnvironment;
 import org.robolectric.shadows.ShadowContentResolver;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -60,17 +59,6 @@ public class ContextualCardLoaderTest {
                 mProvider);
     }
 
-    @Test
-    public void createStaticCards_shouldContainCorrectCards() {
-        final Uri batteryInfo = BatterySlice.BATTERY_CARD_URI;
-        final List<Uri> expectedUris = Arrays.asList(batteryInfo);
-
-        final List<Uri> actualCardUris = mContextualCardLoader.createStaticCards().stream().map(
-                ContextualCard::getSliceUri).collect(Collectors.toList());
-
-        assertThat(actualCardUris).containsExactlyElementsIn(expectedUris);
-    }
-
     @Test
     public void isCardEligibleToDisplay_customCard_returnTrue() {
         final ContextualCard customCard = new ContextualCard.Builder()