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.AppHeader;
28 import com.android.settings.R;
29 import com.android.settings.SettingsActivity;
30 import com.android.settings.SettingsPreferenceFragment;
31 import com.android.settings.applications.ProcStatsData.MemInfo;
32 
33 public abstract class ProcessStatsBase extends SettingsPreferenceFragment
34         implements OnItemSelectedListener {
35     private static final String DURATION = "duration";
36 
37     protected static final String ARG_TRANSFER_STATS = "transfer_stats";
38     protected static final String ARG_DURATION_INDEX = "duration_index";
39 
40     protected static final int NUM_DURATIONS = 4;
41 
42     // The actual duration value to use for each duration option.  Note these
43     // are lower than the actual duration, since our durations are computed in
44     // batches of 3 hours so we want to allow the time we use to be slightly
45     // smaller than the actual time selected instead of bumping up to 3 hours
46     // beyond it.
47     private static final long DURATION_QUANTUM = ProcessStats.COMMIT_PERIOD;
48     protected static long[] sDurations = new long[] {
49         3 * 60 * 60 * 1000 - DURATION_QUANTUM / 2, 6 * 60 *60 * 1000 - DURATION_QUANTUM / 2,
50         12 * 60 * 60 * 1000 - DURATION_QUANTUM / 2, 24 * 60 * 60 * 1000 - DURATION_QUANTUM / 2
51     };
52     protected static int[] sDurationLabels = new int[] {
53             R.string.menu_duration_3h, R.string.menu_duration_6h,
54             R.string.menu_duration_12h, R.string.menu_duration_1d
55     };
56 
57     private ViewGroup mSpinnerHeader;
58     private Spinner mFilterSpinner;
59     private ArrayAdapter<String> mFilterAdapter;
60 
61     protected ProcStatsData mStatsManager;
62     protected int mDurationIndex;
63 
64     @Override
onCreate(Bundle icicle)65     public void onCreate(Bundle icicle) {
66         super.onCreate(icicle);
67 
68         Bundle args = getArguments();
69         mStatsManager = new ProcStatsData(getActivity(), icicle != null
70                 || (args != null && args.getBoolean(ARG_TRANSFER_STATS, false)));
71 
72         mDurationIndex = icicle != null
73                 ? icicle.getInt(ARG_DURATION_INDEX)
74                 : args != null ? args.getInt(ARG_DURATION_INDEX) : 0;
75         mStatsManager.setDuration(icicle != null
76                 ? icicle.getLong(DURATION, sDurations[0]) : sDurations[0]);
77     }
78 
79     @Override
onSaveInstanceState(Bundle outState)80     public void onSaveInstanceState(Bundle outState) {
81         super.onSaveInstanceState(outState);
82         outState.putLong(DURATION, mStatsManager.getDuration());
83         outState.putInt(ARG_DURATION_INDEX, mDurationIndex);
84     }
85 
86     @Override
onResume()87     public void onResume() {
88         super.onResume();
89         mStatsManager.refreshStats(false);
90         refreshUi();
91     }
92 
93     @Override
onDestroy()94     public void onDestroy() {
95         super.onDestroy();
96         if (getActivity().isChangingConfigurations()) {
97             mStatsManager.xferStats();
98         }
99     }
100 
101     @Override
onViewCreated(View view, Bundle savedInstanceState)102     public void onViewCreated(View view, Bundle savedInstanceState) {
103         super.onViewCreated(view, savedInstanceState);
104         mSpinnerHeader = (ViewGroup) setPinnedHeaderView(R.layout.apps_filter_spinner);
105         mFilterSpinner = (Spinner) mSpinnerHeader.findViewById(R.id.filter_spinner);
106         mFilterAdapter = new ArrayAdapter<String>(mFilterSpinner.getContext(),
107                 R.layout.filter_spinner_item);
108         mFilterAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
109         for (int i = 0; i < NUM_DURATIONS; i++) {
110             mFilterAdapter.add(getString(sDurationLabels[i]));
111         }
112         mFilterSpinner.setAdapter(mFilterAdapter);
113         mFilterSpinner.setSelection(mDurationIndex);
114         mFilterSpinner.setOnItemSelectedListener(this);
115     }
116 
117     @Override
onItemSelected(AdapterView<?> parent, View view, int position, long id)118     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
119         mDurationIndex = position;
120         mStatsManager.setDuration(sDurations[position]);
121         refreshUi();
122     }
123 
124     @Override
onNothingSelected(AdapterView<?> parent)125     public void onNothingSelected(AdapterView<?> parent) {
126         // Select something.
127         mFilterSpinner.setSelection(0);
128     }
129 
refreshUi()130     public abstract void refreshUi();
131 
launchMemoryDetail(SettingsActivity activity, MemInfo memInfo, ProcStatsPackageEntry entry, boolean includeAppInfo)132     public static void launchMemoryDetail(SettingsActivity activity, MemInfo memInfo,
133             ProcStatsPackageEntry entry, boolean includeAppInfo) {
134         Bundle args = new Bundle();
135         args.putParcelable(ProcessStatsDetail.EXTRA_PACKAGE_ENTRY, entry);
136         args.putDouble(ProcessStatsDetail.EXTRA_WEIGHT_TO_RAM, memInfo.weightToRam);
137         args.putLong(ProcessStatsDetail.EXTRA_TOTAL_TIME, memInfo.memTotalTime);
138         args.putDouble(ProcessStatsDetail.EXTRA_MAX_MEMORY_USAGE,
139                 memInfo.usedWeight * memInfo.weightToRam);
140         args.putDouble(ProcessStatsDetail.EXTRA_TOTAL_SCALE, memInfo.totalScale);
141         args.putBoolean(AppHeader.EXTRA_HIDE_INFO_BUTTON, !includeAppInfo);
142         activity.startPreferencePanel(null, ProcessStatsDetail.class.getName(), args,
143                 R.string.memory_usage, null, null, 0);
144     }
145 }
146