Refine Anomaly detail page

1. Fix the layout issue(title not vertical horizontal)
2. Add subtitle for anomaly

Bug: 36924669
Test: RunSettingsRoboTests
Change-Id: I9b3627f09bbe37b104644d203ff8924f0faaea47

src/com/android/settings/fuelgauge/BatteryUtils.java

@@ -21,6 +21,7 @@ import android.os.BatteryStats;
 import android.os.SystemClock;
 import android.support.annotation.IntDef;
 import android.support.annotation.Nullable;
+import android.support.annotation.StringRes;
 import android.support.annotation.VisibleForTesting;
 import android.text.format.DateUtils;
 import android.util.Log;
@@ -29,6 +30,8 @@ import android.util.SparseLongArray;
 import com.android.internal.os.BatterySipper;
 import com.android.internal.os.BatteryStatsHelper;
 import com.android.internal.util.ArrayUtils;
+import com.android.settings.R;
+import com.android.settings.fuelgauge.anomaly.Anomaly;
 import com.android.settings.overlay.FeatureFactory;
 
 import java.lang.annotation.Retention;
@@ -291,6 +294,20 @@ public class BatteryUtils {
         }
     }
 
+    @StringRes
+    public int getSummaryResIdFromAnomalyType(@Anomaly.AnomalyType int type) {
+        switch (type) {
+            case Anomaly.AnomalyType.WAKE_LOCK:
+                return R.string.battery_abnormal_wakelock_summary;
+            case Anomaly.AnomalyType.WAKEUP_ALARM:
+                return R.string.battery_abnormal_wakeup_alarm_summary;
+            case Anomaly.AnomalyType.BLUETOOTH_SCAN:
+                return R.string.battery_abnormal_location_summary;
+            default:
+                throw new IllegalArgumentException("Incorrect anomaly type: " + type);
+        }
+    }
+
     public long convertUsToMs(long timeUs) {
         return timeUs / 1000;
     }

src/com/android/settings/fuelgauge/PowerUsageAnomalyDetails.java

@@ -57,6 +57,8 @@ public class PowerUsageAnomalyDetails extends DashboardFragment implements
     PreferenceGroup mAbnormalListGroup;
     @VisibleForTesting
     PackageManager mPackageManager;
+    @VisibleForTesting
+    BatteryUtils mBatteryUtils;
     IconDrawableFactory mIconDrawableFactory;
 
     public static void startBatteryAbnormalPage(SettingsActivity caller,
@@ -78,6 +80,7 @@ public class PowerUsageAnomalyDetails extends DashboardFragment implements
         mAbnormalListGroup = (PreferenceGroup) findPreference(KEY_PREF_ANOMALY_LIST);
         mPackageManager = context.getPackageManager();
         mIconDrawableFactory = IconDrawableFactory.newInstance(context, false /* EmbedShadow */);
+        mBatteryUtils = BatteryUtils.getInstance(context);
     }
 
     @Override
@@ -126,16 +129,16 @@ public class PowerUsageAnomalyDetails extends DashboardFragment implements
     }
 
     void refreshUi() {
-        //TODO(b/37681665): cache the preference so we don't need to create new one every time.
         mAbnormalListGroup.removeAll();
         for (int i = 0, size = mAnomalies.size(); i < size; i++) {
             final Anomaly anomaly = mAnomalies.get(i);
             Preference pref = new AnomalyPreference(getPrefContext(), anomaly);
-
+            pref.setSummary(mBatteryUtils.getSummaryResIdFromAnomalyType(anomaly.type));
             Drawable icon = getIconFromPackageName(anomaly.packageName);
             if (icon != null) {
                 pref.setIcon(icon);
             }
+
             mAbnormalListGroup.addPreference(pref);
         }
     }

src/com/android/settings/fuelgauge/anomaly/AnomalyPreference.java

@@ -14,7 +14,6 @@ public class AnomalyPreference extends Preference {
     public AnomalyPreference(Context context, Anomaly anomaly) {
         super(context);
         mAnomaly = anomaly;
-        setLayoutResource(R.layout.preference_app);
 
         if (anomaly != null) {
             setTitle(anomaly.displayName);