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 android.app.usage.UsageStatsManager; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.content.pm.PackageManager; 23 import android.content.pm.ResolveInfo; 24 import android.os.Bundle; 25 import android.support.v7.preference.Preference; 26 import android.support.v7.preference.Preference.OnPreferenceClickListener; 27 import android.support.v7.preference.PreferenceGroup; 28 29 import com.android.internal.logging.MetricsProto.MetricsEvent; 30 import com.android.settings.R; 31 import com.android.settings.SettingsPreferenceFragment; 32 33 import java.util.List; 34 35 public class InactiveApps extends SettingsPreferenceFragment implements OnPreferenceClickListener { 36 37 private UsageStatsManager mUsageStats; 38 39 @Override getMetricsCategory()40 protected int getMetricsCategory() { 41 return MetricsEvent.FUELGAUGE_INACTIVE_APPS; 42 } 43 44 @Override onCreate(Bundle icicle)45 public void onCreate(Bundle icicle) { 46 super.onCreate(icicle); 47 48 mUsageStats = getActivity().getSystemService(UsageStatsManager.class); 49 addPreferencesFromResource(R.xml.inactive_apps); 50 } 51 52 @Override onResume()53 public void onResume() { 54 super.onResume(); 55 init(); 56 } 57 init()58 private void init() { 59 PreferenceGroup screen = getPreferenceScreen(); 60 screen.removeAll(); 61 screen.setOrderingAsAdded(false); 62 final Context context = getActivity(); 63 final PackageManager pm = context.getPackageManager(); 64 final UsageStatsManager usm = context.getSystemService(UsageStatsManager.class); 65 66 Intent launcherIntent = new Intent(Intent.ACTION_MAIN); 67 launcherIntent.addCategory(Intent.CATEGORY_LAUNCHER); 68 List<ResolveInfo> apps = pm.queryIntentActivities(launcherIntent, 0); 69 for (ResolveInfo app : apps) { 70 String packageName = app.activityInfo.applicationInfo.packageName; 71 Preference p = new Preference(getPrefContext()); 72 p.setTitle(app.loadLabel(pm)); 73 p.setIcon(app.loadIcon(pm)); 74 p.setKey(packageName); 75 updateSummary(p); 76 p.setOnPreferenceClickListener(this); 77 78 screen.addPreference(p); 79 } 80 } 81 updateSummary(Preference p)82 private void updateSummary(Preference p) { 83 boolean inactive = mUsageStats.isAppInactive(p.getKey()); 84 p.setSummary(inactive 85 ? R.string.inactive_app_inactive_summary 86 : R.string.inactive_app_active_summary); 87 } 88 89 @Override onPreferenceClick(Preference preference)90 public boolean onPreferenceClick(Preference preference) { 91 String packageName = preference.getKey(); 92 mUsageStats.setAppInactive(packageName, !mUsageStats.isAppInactive(packageName)); 93 updateSummary(preference); 94 return false; 95 } 96 } 97