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      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.applications;
     17 
     18 import android.os.Bundle;
     19 import android.view.View;
     20 import android.view.ViewGroup;
     21 import android.widget.AdapterView;
     22 import android.widget.AdapterView.OnItemSelectedListener;
     23 import android.widget.ArrayAdapter;
     24 import android.widget.Spinner;
     25 
     26 import com.android.internal.app.procstats.ProcessStats;
     27 import com.android.settings.R;
     28 import com.android.settings.SettingsActivity;
     29 import com.android.settings.SettingsPreferenceFragment;
     30 import com.android.settings.applications.ProcStatsData.MemInfo;
     31 
     32 public abstract class ProcessStatsBase extends SettingsPreferenceFragment
     33         implements OnItemSelectedListener {
     34     private static final String DURATION = "duration";
     35 
     36     protected static final String ARG_TRANSFER_STATS = "transfer_stats";
     37     protected static final String ARG_DURATION_INDEX = "duration_index";
     38 
     39     protected static final int NUM_DURATIONS = 4;
     40 
     41     // The actual duration value to use for each duration option.  Note these
     42     // are lower than the actual duration, since our durations are computed in
     43     // batches of 3 hours so we want to allow the time we use to be slightly
     44     // smaller than the actual time selected instead of bumping up to 3 hours
     45     // beyond it.
     46     private static final long DURATION_QUANTUM = ProcessStats.COMMIT_PERIOD;
     47     protected static long[] sDurations = new long[] {
     48         3 * 60 * 60 * 1000 - DURATION_QUANTUM / 2, 6 * 60 *60 * 1000 - DURATION_QUANTUM / 2,
     49         12 * 60 * 60 * 1000 - DURATION_QUANTUM / 2, 24 * 60 * 60 * 1000 - DURATION_QUANTUM / 2
     50     };
     51     protected static int[] sDurationLabels = new int[] {
     52             R.string.menu_duration_3h, R.string.menu_duration_6h,
     53             R.string.menu_duration_12h, R.string.menu_duration_1d
     54     };
     55 
     56     private ViewGroup mSpinnerHeader;
     57     private Spinner mFilterSpinner;
     58     private ArrayAdapter<String> mFilterAdapter;
     59 
     60     protected ProcStatsData mStatsManager;
     61     protected int mDurationIndex;
     62 
     63     @Override
     64     public void onCreate(Bundle icicle) {
     65         super.onCreate(icicle);
     66 
     67         Bundle args = getArguments();
     68         mStatsManager = new ProcStatsData(getActivity(), icicle != null
     69                 || (args != null && args.getBoolean(ARG_TRANSFER_STATS, false)));
     70 
     71         mDurationIndex = icicle != null
     72                 ? icicle.getInt(ARG_DURATION_INDEX)
     73                 : args != null ? args.getInt(ARG_DURATION_INDEX) : 0;
     74         mStatsManager.setDuration(icicle != null
     75                 ? icicle.getLong(DURATION, sDurations[0]) : sDurations[0]);
     76     }
     77 
     78     @Override
     79     public void onSaveInstanceState(Bundle outState) {
     80         super.onSaveInstanceState(outState);
     81         outState.putLong(DURATION, mStatsManager.getDuration());
     82         outState.putInt(ARG_DURATION_INDEX, mDurationIndex);
     83     }
     84 
     85     @Override
     86     public void onResume() {
     87         super.onResume();
     88         mStatsManager.refreshStats(false);
     89         refreshUi();
     90     }
     91 
     92     @Override
     93     public void onDestroy() {
     94         super.onDestroy();
     95         if (getActivity().isChangingConfigurations()) {
     96             mStatsManager.xferStats();
     97         }
     98     }
     99 
    100     @Override
    101     public void onViewCreated(View view, Bundle savedInstanceState) {
    102         super.onViewCreated(view, savedInstanceState);
    103         mSpinnerHeader = (ViewGroup) setPinnedHeaderView(R.layout.apps_filter_spinner);
    104         mFilterSpinner = (Spinner) mSpinnerHeader.findViewById(R.id.filter_spinner);
    105         mFilterAdapter = new ArrayAdapter<String>(mFilterSpinner.getContext(),
    106                 R.layout.filter_spinner_item);
    107         mFilterAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    108         for (int i = 0; i < NUM_DURATIONS; i++) {
    109             mFilterAdapter.add(getString(sDurationLabels[i]));
    110         }
    111         mFilterSpinner.setAdapter(mFilterAdapter);
    112         mFilterSpinner.setSelection(mDurationIndex);
    113         mFilterSpinner.setOnItemSelectedListener(this);
    114     }
    115 
    116     @Override
    117     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
    118         mDurationIndex = position;
    119         mStatsManager.setDuration(sDurations[position]);
    120         refreshUi();
    121     }
    122 
    123     @Override
    124     public void onNothingSelected(AdapterView<?> parent) {
    125         // Select something.
    126         mFilterSpinner.setSelection(0);
    127     }
    128 
    129     public abstract void refreshUi();
    130 
    131     public static void launchMemoryDetail(SettingsActivity activity, MemInfo memInfo,
    132             ProcStatsPackageEntry entry, boolean includeAppInfo) {
    133         Bundle args = new Bundle();
    134         args.putParcelable(ProcessStatsDetail.EXTRA_PACKAGE_ENTRY, entry);
    135         args.putDouble(ProcessStatsDetail.EXTRA_WEIGHT_TO_RAM, memInfo.weightToRam);
    136         args.putLong(ProcessStatsDetail.EXTRA_TOTAL_TIME, memInfo.memTotalTime);
    137         args.putDouble(ProcessStatsDetail.EXTRA_MAX_MEMORY_USAGE,
    138                 memInfo.usedWeight * memInfo.weightToRam);
    139         args.putDouble(ProcessStatsDetail.EXTRA_TOTAL_SCALE, memInfo.totalScale);
    140         activity.startPreferencePanel(null, ProcessStatsDetail.class.getName(), args,
    141                 R.string.memory_usage, null, null, 0);
    142     }
    143 }
    144