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 17 package com.android.settings.fuelgauge; 18 19 import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_ACTIVE; 20 import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_EXEMPTED; 21 import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_FREQUENT; 22 import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_NEVER; 23 import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_RARE; 24 import static android.app.usage.UsageStatsManager.STANDBY_BUCKET_WORKING_SET; 25 26 import android.app.usage.UsageStatsManager; 27 import android.content.Context; 28 import android.content.Intent; 29 import android.content.pm.PackageManager; 30 import android.content.pm.ResolveInfo; 31 import android.content.res.Resources; 32 import android.os.Bundle; 33 import android.support.v7.preference.ListPreference; 34 import android.support.v7.preference.Preference; 35 import android.support.v7.preference.Preference.OnPreferenceClickListener; 36 import android.support.v7.preference.PreferenceGroup; 37 38 import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 39 import com.android.settings.R; 40 import com.android.settings.SettingsPreferenceFragment; 41 import com.android.settings.widget.RadioButtonPreference; 42 43 import java.util.List; 44 45 public class InactiveApps extends SettingsPreferenceFragment 46 implements Preference.OnPreferenceChangeListener { 47 48 private static final CharSequence[] SETTABLE_BUCKETS_NAMES = 49 {"ACTIVE", "WORKING_SET", "FREQUENT", "RARE"}; 50 51 private static final CharSequence[] SETTABLE_BUCKETS_VALUES = { 52 Integer.toString(STANDBY_BUCKET_ACTIVE), 53 Integer.toString(STANDBY_BUCKET_WORKING_SET), 54 Integer.toString(STANDBY_BUCKET_FREQUENT), 55 Integer.toString(STANDBY_BUCKET_RARE) 56 }; 57 58 private UsageStatsManager mUsageStats; 59 60 @Override getMetricsCategory()61 public int getMetricsCategory() { 62 return MetricsEvent.FUELGAUGE_INACTIVE_APPS; 63 } 64 65 @Override onCreate(Bundle icicle)66 public void onCreate(Bundle icicle) { 67 super.onCreate(icicle); 68 69 mUsageStats = getActivity().getSystemService(UsageStatsManager.class); 70 addPreferencesFromResource(R.xml.inactive_apps); 71 } 72 73 @Override onResume()74 public void onResume() { 75 super.onResume(); 76 init(); 77 } 78 init()79 private void init() { 80 PreferenceGroup screen = getPreferenceScreen(); 81 screen.removeAll(); 82 screen.setOrderingAsAdded(false); 83 final Context context = getActivity(); 84 final PackageManager pm = context.getPackageManager(); 85 final UsageStatsManager usm = context.getSystemService(UsageStatsManager.class); 86 87 Intent launcherIntent = new Intent(Intent.ACTION_MAIN); 88 launcherIntent.addCategory(Intent.CATEGORY_LAUNCHER); 89 List<ResolveInfo> apps = pm.queryIntentActivities(launcherIntent, 0); 90 for (ResolveInfo app : apps) { 91 String packageName = app.activityInfo.applicationInfo.packageName; 92 ListPreference p = new ListPreference(getPrefContext()); 93 p.setTitle(app.loadLabel(pm)); 94 p.setIcon(app.loadIcon(pm)); 95 p.setKey(packageName); 96 p.setEntries(SETTABLE_BUCKETS_NAMES); 97 p.setEntryValues(SETTABLE_BUCKETS_VALUES); 98 updateSummary(p); 99 p.setOnPreferenceChangeListener(this); 100 101 screen.addPreference(p); 102 } 103 } 104 bucketToName(int bucket)105 static String bucketToName(int bucket) { 106 switch (bucket) { 107 case STANDBY_BUCKET_EXEMPTED: return "EXEMPTED"; 108 case STANDBY_BUCKET_ACTIVE: return "ACTIVE"; 109 case STANDBY_BUCKET_WORKING_SET: return "WORKING_SET"; 110 case STANDBY_BUCKET_FREQUENT: return "FREQUENT"; 111 case STANDBY_BUCKET_RARE: return "RARE"; 112 case STANDBY_BUCKET_NEVER: return "NEVER"; 113 } 114 return ""; 115 } 116 updateSummary(ListPreference p)117 private void updateSummary(ListPreference p) { 118 final Resources res = getActivity().getResources(); 119 final int appBucket = mUsageStats.getAppStandbyBucket(p.getKey()); 120 final String bucketName = bucketToName(appBucket); 121 p.setSummary(res.getString(R.string.standby_bucket_summary, bucketName)); 122 // Buckets outside of the range of the dynamic ones are only used for special 123 // purposes and can either not be changed out of, or might have undesirable 124 // side-effects in combination with other assumptions. 125 final boolean changeable = appBucket >= STANDBY_BUCKET_ACTIVE 126 && appBucket <= STANDBY_BUCKET_RARE; 127 if (changeable) { 128 p.setValue(Integer.toString(appBucket)); 129 } 130 p.setEnabled(changeable); 131 } 132 133 @Override onPreferenceChange(Preference preference, Object newValue)134 public boolean onPreferenceChange(Preference preference, Object newValue) { 135 mUsageStats.setAppStandbyBucket(preference.getKey(), Integer.parseInt((String) newValue)); 136 updateSummary((ListPreference) preference); 137 return false; 138 } 139 } 140