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      1 /*
      2  * Copyright (C) 2013 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.applications;
     18 
     19 import android.content.Context;
     20 import android.content.pm.PackageManager;
     21 import android.os.Bundle;
     22 import android.support.v7.preference.Preference;
     23 import android.support.v7.preference.PreferenceGroup;
     24 import android.util.Log;
     25 import android.util.TimeUtils;
     26 import android.view.Menu;
     27 import android.view.MenuInflater;
     28 import android.view.MenuItem;
     29 
     30 import com.android.internal.app.procstats.ProcessStats;
     31 import com.android.internal.logging.MetricsProto.MetricsEvent;
     32 import com.android.settings.R;
     33 import com.android.settings.SettingsActivity;
     34 import com.android.settings.applications.ProcStatsData.MemInfo;
     35 
     36 import java.util.Collections;
     37 import java.util.Comparator;
     38 import java.util.List;
     39 
     40 public class ProcessStatsUi extends ProcessStatsBase {
     41     static final String TAG = "ProcessStatsUi";
     42     static final boolean DEBUG = false;
     43 
     44     private static final String KEY_APP_LIST = "app_list";
     45 
     46     private static final int MENU_SHOW_AVG = Menu.FIRST;
     47     private static final int MENU_SHOW_MAX = Menu.FIRST + 1;
     48 
     49     private PreferenceGroup mAppListGroup;
     50     private PackageManager mPm;
     51 
     52     private boolean mShowMax;
     53     private MenuItem mMenuAvg;
     54     private MenuItem mMenuMax;
     55 
     56     @Override
     57     public void onCreate(Bundle icicle) {
     58         super.onCreate(icicle);
     59 
     60         mPm = getActivity().getPackageManager();
     61 
     62         addPreferencesFromResource(R.xml.process_stats_ui);
     63         mAppListGroup = (PreferenceGroup) findPreference(KEY_APP_LIST);
     64         setHasOptionsMenu(true);
     65     }
     66 
     67     @Override
     68     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
     69         super.onCreateOptionsMenu(menu, inflater);
     70         mMenuAvg = menu.add(0, MENU_SHOW_AVG, 0, R.string.sort_avg_use);
     71         mMenuMax = menu.add(0, MENU_SHOW_MAX, 0, R.string.sort_max_use);
     72         updateMenu();
     73     }
     74 
     75     @Override
     76     public boolean onOptionsItemSelected(MenuItem item) {
     77         switch (item.getItemId()) {
     78             case MENU_SHOW_AVG:
     79             case MENU_SHOW_MAX:
     80                 mShowMax = !mShowMax;
     81                 refreshUi();
     82                 updateMenu();
     83                 return true;
     84         }
     85         return super.onOptionsItemSelected(item);
     86     }
     87 
     88     private void updateMenu() {
     89         mMenuMax.setVisible(!mShowMax);
     90         mMenuAvg.setVisible(mShowMax);
     91     }
     92 
     93     @Override
     94     protected int getMetricsCategory() {
     95         return MetricsEvent.APPLICATIONS_PROCESS_STATS_UI;
     96     }
     97 
     98     @Override
     99     public void onSaveInstanceState(Bundle outState) {
    100         super.onSaveInstanceState(outState);
    101     }
    102 
    103     @Override
    104     public boolean onPreferenceTreeClick(Preference preference) {
    105         if (!(preference instanceof ProcessStatsPreference)) {
    106             return false;
    107         }
    108         ProcessStatsPreference pgp = (ProcessStatsPreference) preference;
    109         MemInfo memInfo = mStatsManager.getMemInfo();
    110         launchMemoryDetail((SettingsActivity) getActivity(), memInfo, pgp.getEntry(), true);
    111 
    112         return super.onPreferenceTreeClick(preference);
    113     }
    114 
    115     /**
    116      * All states in which we consider a process to be actively running (rather than
    117      * something that can be freely killed to reclaim RAM).  Note this also includes
    118      * the HOME state, because we prioritize home over all cached processes even when
    119      * it is in the background, so it is effectively always running from the perspective
    120      * of the information we want to show the user here.
    121      */
    122     public static final int[] BACKGROUND_AND_SYSTEM_PROC_STATES = new int[] {
    123             ProcessStats.STATE_PERSISTENT, ProcessStats.STATE_IMPORTANT_FOREGROUND,
    124             ProcessStats.STATE_IMPORTANT_BACKGROUND, ProcessStats.STATE_BACKUP,
    125             ProcessStats.STATE_HEAVY_WEIGHT, ProcessStats.STATE_SERVICE,
    126             ProcessStats.STATE_SERVICE_RESTARTING, ProcessStats.STATE_RECEIVER,
    127             ProcessStats.STATE_HOME
    128     };
    129 
    130     public static final int[] FOREGROUND_PROC_STATES = new int[] {
    131             ProcessStats.STATE_TOP
    132     };
    133 
    134     public static final int[] CACHED_PROC_STATES = new int[] {
    135             ProcessStats.STATE_CACHED_ACTIVITY, ProcessStats.STATE_CACHED_ACTIVITY_CLIENT,
    136             ProcessStats.STATE_CACHED_EMPTY
    137     };
    138 
    139     public static String makeDuration(long time) {
    140         StringBuilder sb = new StringBuilder(32);
    141         TimeUtils.formatDuration(time, sb);
    142         return sb.toString();
    143     }
    144 
    145     @Override
    146     public void refreshUi() {
    147         mAppListGroup.removeAll();
    148         mAppListGroup.setOrderingAsAdded(false);
    149         mAppListGroup.setTitle(mShowMax ? R.string.maximum_memory_use
    150                 : R.string.average_memory_use);
    151 
    152         final Context context = getActivity();
    153         MemInfo memInfo = mStatsManager.getMemInfo();
    154 
    155         List<ProcStatsPackageEntry> pkgEntries = mStatsManager.getEntries();
    156 
    157         // Update everything and get the absolute maximum of memory usage for scaling.
    158         for (int i=0, N=pkgEntries.size(); i<N; i++) {
    159             ProcStatsPackageEntry pkg = pkgEntries.get(i);
    160             pkg.updateMetrics();
    161         }
    162 
    163         Collections.sort(pkgEntries, mShowMax ? sMaxPackageEntryCompare : sPackageEntryCompare);
    164 
    165         // Now collect the per-process information into applications, so that applications
    166         // running as multiple processes will have only one entry representing all of them.
    167 
    168         if (DEBUG) Log.d(TAG, "-------------------- BUILDING UI");
    169 
    170         double maxMemory = mShowMax ? memInfo.realTotalRam
    171                 : memInfo.usedWeight * memInfo.weightToRam;
    172         for (int i = 0; i < pkgEntries.size(); i++) {
    173             ProcStatsPackageEntry pkg = pkgEntries.get(i);
    174             ProcessStatsPreference pref = new ProcessStatsPreference(getPrefContext());
    175             pkg.retrieveUiData(context, mPm);
    176             pref.init(pkg, mPm, maxMemory, memInfo.weightToRam,
    177                     memInfo.totalScale, !mShowMax);
    178             pref.setOrder(i);
    179             mAppListGroup.addPreference(pref);
    180         }
    181     }
    182 
    183     final static Comparator<ProcStatsPackageEntry> sPackageEntryCompare
    184             = new Comparator<ProcStatsPackageEntry>() {
    185         @Override
    186         public int compare(ProcStatsPackageEntry lhs, ProcStatsPackageEntry rhs) {
    187             double rhsWeight = Math.max(rhs.mRunWeight, rhs.mBgWeight);
    188             double lhsWeight = Math.max(lhs.mRunWeight, lhs.mBgWeight);
    189             if (lhsWeight == rhsWeight) {
    190                 return 0;
    191             }
    192             return lhsWeight < rhsWeight ? 1 : -1;
    193         }
    194     };
    195 
    196     final static Comparator<ProcStatsPackageEntry> sMaxPackageEntryCompare
    197             = new Comparator<ProcStatsPackageEntry>() {
    198         @Override
    199         public int compare(ProcStatsPackageEntry lhs, ProcStatsPackageEntry rhs) {
    200             double rhsMax = Math.max(rhs.mMaxBgMem, rhs.mMaxRunMem);
    201             double lhsMax = Math.max(lhs.mMaxBgMem, lhs.mMaxRunMem);
    202             if (lhsMax == rhsMax) {
    203                 return 0;
    204             }
    205             return lhsMax < rhsMax ? 1 : -1;
    206         }
    207     };
    208 }
    209