Avoid load icon and label in the background for periodic job

In the original design, BatteyEntry will load icon and label in the
background thread and cache them into memory, but we don't need such
information in the periodic fetching job. Add a method to disable it to
improve the performance and memory footprint.

Bug: 185207505
Test: make SettingsRoboTests
Test: make SettingsGoogleRoboTests
Change-Id: Iba759256e94159fce243ff4d700a8adf9e92f82c

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

@@ -209,7 +209,8 @@ public class BatteryAppListPreferenceController extends AbstractPreferenceContro
 
         if (sConfig.shouldShowBatteryAttributionList(mContext)) {
             final int dischargePercentage = getDischargePercentage(batteryUsageStats);
-            final List<BatteryEntry> usageList = getCoalescedUsageList(showAllApps);
+            final List<BatteryEntry> usageList =
+                getCoalescedUsageList(showAllApps, /*loadDataInBackground=*/ true);
             final double totalPower = batteryUsageStats.getConsumedPower();
             final int numSippers = usageList.size();
             for (int i = 0; i < numSippers; i++) {
@@ -267,7 +268,8 @@ public class BatteryAppListPreferenceController extends AbstractPreferenceContro
             return null;
         }
         final int dischargePercentage = getDischargePercentage(batteryUsageStats);
-        final List<BatteryEntry> usageList = getCoalescedUsageList(showAllApps);
+        final List<BatteryEntry> usageList =
+            getCoalescedUsageList(showAllApps, /*loadDataInBackground=*/ false);
         final double totalPower = batteryUsageStats.getConsumedPower();
         for (int i = 0; i < usageList.size(); i++) {
             final BatteryEntry entry = usageList.get(i);
@@ -293,7 +295,8 @@ public class BatteryAppListPreferenceController extends AbstractPreferenceContro
      *
      * @return A sorted list of apps using power.
      */
-    private List<BatteryEntry> getCoalescedUsageList(boolean showAllApps) {
+    private List<BatteryEntry> getCoalescedUsageList(
+            boolean showAllApps, boolean loadDataInBackground) {
         final SparseArray<BatteryEntry> batteryEntryList = new SparseArray<>();
 
         final ArrayList<BatteryEntry> results = new ArrayList<>();
@@ -333,7 +336,7 @@ public class BatteryAppListPreferenceController extends AbstractPreferenceContro
             if (index < 0) {
                 // New entry.
                 batteryEntryList.put(realUid, new BatteryEntry(mContext, mHandler, mUserManager,
-                        consumer, isHidden, packages, null));
+                        consumer, isHidden, packages, null, loadDataInBackground));
             } else {
                 // Combine BatterySippers if we already have one with this UID.
                 final BatteryEntry existingSipper = batteryEntryList.valueAt(index);
@@ -350,7 +353,7 @@ public class BatteryAppListPreferenceController extends AbstractPreferenceContro
             }
 
             results.add(new BatteryEntry(mContext, mHandler, mUserManager,
-                    consumer, /* isHidden */ true, null, null));
+                    consumer, /* isHidden */ true, null, null, loadDataInBackground));
         }
 
         if (showAllApps) {
@@ -359,7 +362,7 @@ public class BatteryAppListPreferenceController extends AbstractPreferenceContro
             for (int i = 0, size = userBatteryConsumers.size(); i < size; i++) {
                 final UserBatteryConsumer consumer = userBatteryConsumers.get(i);
                 results.add(new BatteryEntry(mContext, mHandler, mUserManager,
-                        consumer, /* isHidden */ true, null, null));
+                        consumer, /* isHidden */ true, null, null, loadDataInBackground));
             }
         }
 

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

@@ -178,6 +178,12 @@ public class BatteryEntry {
     public BatteryEntry(Context context, Handler handler, UserManager um,
             @NonNull BatteryConsumer batteryConsumer, boolean isHidden, String[] packages,
             String packageName) {
+        this(context, handler, um, batteryConsumer, isHidden, packages, packageName, true);
+    }
+
+    public BatteryEntry(Context context, Handler handler, UserManager um,
+            @NonNull BatteryConsumer batteryConsumer, boolean isHidden, String[] packages,
+            String packageName, boolean loadDataInBackground) {
         sHandler = handler;
         mContext = context;
         mBatteryConsumer = batteryConsumer;
@@ -209,7 +215,7 @@ public class BatteryEntry {
                     name = mDefaultPackageName;
                 }
             }
-            getQuickNameIconForUid(uid, packages);
+            getQuickNameIconForUid(uid, packages, loadDataInBackground);
             return;
         } else if (batteryConsumer instanceof SystemBatteryConsumer) {
             mConsumedPower = batteryConsumer.getConsumedPower()
@@ -242,7 +248,8 @@ public class BatteryEntry {
         return name;
     }
 
-    void getQuickNameIconForUid(final int uid, final String[] packages) {
+    void getQuickNameIconForUid(
+            final int uid, final String[] packages, final boolean loadDataInBackground) {
         // Locale sync to system config in Settings
         final Locale locale = Locale.getDefault();
         if (sCurrentLocale != locale) {
@@ -267,7 +274,7 @@ public class BatteryEntry {
             icon = mContext.getPackageManager().getDefaultActivityIcon();
         }
 
-        if (sHandler != null) {
+        if (sHandler != null && loadDataInBackground) {
             synchronized (sRequestQueue) {
                 sRequestQueue.add(this);
             }