Don't show Screen as Apps in advanced battery page

Bug: 37293020
Test: RunSettngsRoboTests
Change-Id: I9a6259e1eb3a2d3451b0479bfe20be735825cd64

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

@@ -226,6 +226,11 @@ public class PowerUsageAdvanced extends PowerUsageBase {
         return false;
     }
 
+    @VisibleForTesting
+    boolean shouldShowBatterySipper(BatterySipper batterySipper) {
+        return batterySipper.drainType != DrainType.SCREEN;
+    }
+
     @VisibleForTesting
     List<PowerUsageData> parsePowerUsageData(BatteryStatsHelper statusHelper) {
         final List<BatterySipper> batterySippers = statusHelper.getUsageList();
@@ -245,7 +250,9 @@ public class PowerUsageAdvanced extends PowerUsageBase {
                         BatteryUtils.StatusType.FOREGROUND, sipper.uidObj, STATUS_TYPE);
             }
             usageData.totalUsageTimeMs += sipper.usageTimeMs;
-            usageData.usageList.add(sipper);
+            if (shouldShowBatterySipper(sipper)) {
+                usageData.usageList.add(sipper);
+            }
         }
 
         final List<PowerUsageData> batteryDataList = new ArrayList<>(batteryDataMap.values());

tests/robotests/src/com/android/settings/fuelgauge/PowerUsageAdvancedTest.java

@@ -260,4 +260,18 @@ public class PowerUsageAdvancedTest {
         assertThat(mPowerUsageAdvanced.shouldHideSummary(mPowerUsageData)).isFalse();
     }
 
+    @Test
+    public void testShouldShowBatterySipper_typeScreen_returnFalse() {
+        mNormalBatterySipper.drainType = DrainType.SCREEN;
+
+        assertThat(mPowerUsageAdvanced.shouldShowBatterySipper(mNormalBatterySipper)).isFalse();
+    }
+
+    @Test
+    public void testShouldShowBatterySipper_typeNormal_returnTrue() {
+        mNormalBatterySipper.drainType = DrainType.APP;
+
+        assertThat(mPowerUsageAdvanced.shouldShowBatterySipper(mNormalBatterySipper)).isTrue();
+    }
+
 }