Add log for shouldShowBatteryAttributionList() checking

Bug: 195306545
Test: make SettingsRoboTests
Change-Id: I0f41d87731a6703f453a9b0476a7534b22e53884
diff --git a/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java b/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java
index 815f2fd..8dbce79 100644
--- a/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java
+++ b/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java
@@ -36,6 +36,7 @@
 import android.text.format.DateUtils;
 import android.util.ArrayMap;
 import android.util.SparseArray;
+import android.util.Log;
 
 import androidx.annotation.VisibleForTesting;
 import androidx.preference.Preference;
@@ -64,6 +65,7 @@
  */
 public class BatteryAppListPreferenceController extends AbstractPreferenceController
         implements PreferenceControllerMixin, LifecycleObserver, OnPause, OnDestroy {
+    private static final String TAG = "BatteryAppListPreferenceController";
     @VisibleForTesting
     static final boolean USE_FAKE_DATA = false;
     private static final int MAX_ITEMS_TO_LIST = USE_FAKE_DATA ? 30 : 20;
@@ -103,9 +105,14 @@
 
             PowerProfile powerProfile = new PowerProfile(context);
             // Cheap hack to try to figure out if the power_profile.xml was populated.
-            return powerProfile.getAveragePowerForOrdinal(
-                    PowerProfile.POWER_GROUP_DISPLAY_SCREEN_FULL, 0)
-                    >= MIN_AVERAGE_POWER_THRESHOLD_MILLI_AMP;
+            final double averagePowerForOrdinal = powerProfile.getAveragePowerForOrdinal(
+                    PowerProfile.POWER_GROUP_DISPLAY_SCREEN_FULL, 0);
+            final boolean shouldShowBatteryAttributionList =
+                    averagePowerForOrdinal >= MIN_AVERAGE_POWER_THRESHOLD_MILLI_AMP;
+            if (!shouldShowBatteryAttributionList) {
+                Log.w(TAG, "shouldShowBatteryAttributionList(): " + averagePowerForOrdinal);
+            }
+            return shouldShowBatteryAttributionList;
         }
     };