1 /*
2  * Copyright (C) 2020 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.settings.fuelgauge;
18 
19 import android.content.Context;
20 import android.os.BatteryStatsManager;
21 import android.os.BatteryUsageStats;
22 import android.os.BatteryUsageStatsQuery;
23 import android.util.Log;
24 
25 import com.android.settingslib.utils.AsyncLoaderCompat;
26 
27 /**
28  * Loader to get new {@link BatteryUsageStats} in the background
29  */
30 public class BatteryUsageStatsLoader extends AsyncLoaderCompat<BatteryUsageStats> {
31     private static final String TAG = "BatteryUsageStatsLoader";
32     private final BatteryStatsManager mBatteryStatsManager;
33     private final boolean mIncludeBatteryHistory;
34 
BatteryUsageStatsLoader(Context context, boolean includeBatteryHistory)35     public BatteryUsageStatsLoader(Context context, boolean includeBatteryHistory) {
36         super(context);
37         mBatteryStatsManager = context.getSystemService(BatteryStatsManager.class);
38         mIncludeBatteryHistory = includeBatteryHistory;
39     }
40 
41     @Override
loadInBackground()42     public BatteryUsageStats loadInBackground() {
43         final BatteryUsageStatsQuery.Builder builder = new BatteryUsageStatsQuery.Builder();
44         if (mIncludeBatteryHistory) {
45             builder.includeBatteryHistory();
46         }
47         try {
48             return mBatteryStatsManager.getBatteryUsageStats(builder.build());
49         } catch (RuntimeException e) {
50             Log.e(TAG, "loadInBackground() for getBatteryUsageStats()", e);
51             // Use default BatteryUsageStats.
52             return new BatteryUsageStats.Builder(
53                     new String[0], /* includePowerModels */ false).build();
54         }
55     }
56 
57     @Override
onDiscardResult(BatteryUsageStats result)58     protected void onDiscardResult(BatteryUsageStats result) {
59     }
60 }
61