1 /* 2 * Copyright (C) 2015 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 package com.android.settings.fuelgauge; 17 18 import static com.android.settings.fuelgauge.BatteryBroadcastReceiver.*; 19 20 import android.app.Activity; 21 import android.app.LoaderManager; 22 import android.content.Context; 23 import android.content.Loader; 24 import android.os.Bundle; 25 import android.os.UserManager; 26 import android.support.annotation.VisibleForTesting; 27 import android.view.Menu; 28 29 import com.android.internal.os.BatteryStatsHelper; 30 import com.android.settings.dashboard.DashboardFragment; 31 32 /** 33 * Common base class for things that need to show the battery usage graph. 34 */ 35 public abstract class PowerUsageBase extends DashboardFragment { 36 37 // +1 to allow ordering for PowerUsageSummary. 38 @VisibleForTesting 39 static final int MENU_STATS_REFRESH = Menu.FIRST + 1; 40 private static final String TAG = "PowerUsageBase"; 41 private static final String KEY_REFRESH_TYPE = "refresh_type"; 42 43 protected BatteryStatsHelper mStatsHelper; 44 protected UserManager mUm; 45 private BatteryBroadcastReceiver mBatteryBroadcastReceiver; 46 47 @Override onAttach(Activity activity)48 public void onAttach(Activity activity) { 49 super.onAttach(activity); 50 mUm = (UserManager) activity.getSystemService(Context.USER_SERVICE); 51 mStatsHelper = new BatteryStatsHelper(activity, true); 52 } 53 54 @Override onCreate(Bundle icicle)55 public void onCreate(Bundle icicle) { 56 super.onCreate(icicle); 57 mStatsHelper.create(icicle); 58 setHasOptionsMenu(true); 59 60 mBatteryBroadcastReceiver = new BatteryBroadcastReceiver(getContext()); 61 mBatteryBroadcastReceiver.setBatteryChangedListener(type -> { 62 restartBatteryStatsLoader(type); 63 }); 64 } 65 66 @Override onStart()67 public void onStart() { 68 super.onStart(); 69 } 70 71 @Override onResume()72 public void onResume() { 73 super.onResume(); 74 75 BatteryStatsHelper.dropFile(getActivity(), BatteryHistoryDetail.BATTERY_HISTORY_FILE); 76 mBatteryBroadcastReceiver.register(); 77 } 78 79 @Override onPause()80 public void onPause() { 81 super.onPause(); 82 mBatteryBroadcastReceiver.unRegister(); 83 } 84 restartBatteryStatsLoader(int refreshType)85 protected void restartBatteryStatsLoader(int refreshType) { 86 final Bundle bundle = new Bundle(); 87 bundle.putInt(KEY_REFRESH_TYPE, refreshType); 88 89 getLoaderManager().restartLoader(0, bundle, new PowerLoaderCallback()); 90 } 91 refreshUi(@atteryUpdateType int refreshType)92 protected abstract void refreshUi(@BatteryUpdateType int refreshType); 93 updatePreference(BatteryHistoryPreference historyPref)94 protected void updatePreference(BatteryHistoryPreference historyPref) { 95 final long startTime = System.currentTimeMillis(); 96 historyPref.setStats(mStatsHelper); 97 BatteryUtils.logRuntime(TAG, "updatePreference", startTime); 98 } 99 100 /** 101 * {@link android.app.LoaderManager.LoaderCallbacks} for {@link PowerUsageBase} to load 102 * the {@link BatteryStatsHelper} 103 */ 104 public class PowerLoaderCallback implements LoaderManager.LoaderCallbacks<BatteryStatsHelper> { 105 private int mRefreshType; 106 107 @Override onCreateLoader(int id, Bundle args)108 public Loader<BatteryStatsHelper> onCreateLoader(int id, 109 Bundle args) { 110 mRefreshType = args.getInt(KEY_REFRESH_TYPE); 111 return new BatteryStatsHelperLoader(getContext()); 112 } 113 114 @Override onLoadFinished(Loader<BatteryStatsHelper> loader, BatteryStatsHelper statsHelper)115 public void onLoadFinished(Loader<BatteryStatsHelper> loader, 116 BatteryStatsHelper statsHelper) { 117 mStatsHelper = statsHelper; 118 refreshUi(mRefreshType); 119 } 120 121 @Override onLoaderReset(Loader<BatteryStatsHelper> loader)122 public void onLoaderReset(Loader<BatteryStatsHelper> loader) { 123 124 } 125 } 126 } 127