Add Battery skeleton page and corresponding TS flag

Test: atest
Bug: 372774754
Flag: com.android.settings.flags.catalyst_power_usage_summary_screen
Change-Id: I2ce7581d0f7fdce3516fef415efdf562c63e38d4

src/com/android/settings/fuelgauge/batteryusage/PowerUsageSummary.java

@@ -27,6 +27,8 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.provider.Settings.Global;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 import androidx.loader.app.LoaderManager;
 import androidx.loader.content.Loader;
@@ -270,4 +272,9 @@ public class PowerUsageSummary extends PowerUsageBase
 
     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
             new BaseSearchIndexProvider(R.xml.power_usage_summary);
+
+    @Override
+    public @Nullable String getPreferenceScreenBindingKey(@NonNull Context context) {
+        return PowerUsageSummaryScreen.KEY;
+    }
 }

src/com/android/settings/fuelgauge/batteryusage/PowerUsageSummaryScreen.kt

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settings.fuelgauge.batteryusage
+
+import android.content.Context
+import com.android.settings.R
+import com.android.settings.flags.Flags
+import com.android.settingslib.metadata.PreferenceAvailabilityProvider
+import com.android.settingslib.metadata.PreferenceIconProvider
+import com.android.settingslib.metadata.ProvidePreferenceScreen
+import com.android.settingslib.metadata.preferenceHierarchy
+import com.android.settingslib.preference.PreferenceScreenCreator
+
+@ProvidePreferenceScreen
+class PowerUsageSummaryScreen : PreferenceScreenCreator,
+    PreferenceAvailabilityProvider,
+    PreferenceIconProvider {
+    override val key: String
+        get() = KEY
+
+    override val title: Int
+        get() = R.string.power_usage_summary_title
+
+    override val keywords: Int
+        get() = R.string.keywords_battery
+
+    override fun isFlagEnabled(context: Context) = Flags.catalystPowerUsageSummaryScreen()
+
+    override fun hasCompleteHierarchy() = false
+
+    override fun fragmentClass() = PowerUsageSummary::class.java
+
+    override fun isAvailable(context: Context) =
+        context.resources.getBoolean(R.bool.config_show_top_level_battery)
+
+    override fun getIcon(context: Context): Int =
+        if (Flags.homepageRevamp()) {
+            R.drawable.ic_settings_battery_filled
+        } else {
+            R.drawable.ic_settings_battery_white
+        }
+
+
+    override fun getPreferenceHierarchy(context: Context) = preferenceHierarchy(this) {}
+
+    companion object {
+        const val KEY = "power_usage_summary_screen"
+    }
+}