auto import from //depot/cupcake/@135843
This commit is contained in:
The Android Open Source Project
249
src/com/android/settings/UsageStats.java
Executable file
249
src/com/android/settings/UsageStats.java
Executable file
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/**
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy
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* of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.android.settings;
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import com.android.internal.app.IUsageStats;
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import com.android.settings.R;
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import android.app.Activity;
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import android.content.Context;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.os.Bundle;
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import android.os.RemoteException;
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import android.os.ServiceManager;
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import com.android.internal.os.PkgUsageStats;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AdapterView;
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import android.widget.BaseAdapter;
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import android.widget.ListView;
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import android.widget.Spinner;
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import android.widget.TextView;
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import android.widget.AdapterView.OnItemSelectedListener;
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/**
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* Activity to display package usage statistics.
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*/
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public class UsageStats extends Activity implements OnItemSelectedListener {
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private static final String TAG="UsageStatsActivity";
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private static final boolean localLOGV = true;
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private Spinner mTypeSpinner;
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private ListView mListView;
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private IUsageStats mUsageStatsService;
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private LayoutInflater mInflater;
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private UsageStatsAdapter mAdapter;
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private PackageManager mPm;
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public static class AppNameComparator implements Comparator<PkgUsageStats> {
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Map<String, CharSequence> mAppLabelList;
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AppNameComparator(Map<String, CharSequence> appList) {
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mAppLabelList = appList;
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}
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public final int compare(PkgUsageStats a, PkgUsageStats b) {
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String alabel = mAppLabelList.get(a.packageName).toString();
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String blabel = mAppLabelList.get(b.packageName).toString();
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return alabel.compareTo(blabel);
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}
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}
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public static class LaunchCountComparator implements Comparator<PkgUsageStats> {
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public final int compare(PkgUsageStats a, PkgUsageStats b) {
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// return by descending order
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return b.launchCount - a.launchCount;
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}
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}
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public static class UsageTimeComparator implements Comparator<PkgUsageStats> {
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public final int compare(PkgUsageStats a, PkgUsageStats b) {
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long ret = a.usageTime-b.usageTime;
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if (ret == 0) {
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return 0;
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}
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if (ret < 0) {
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return 1;
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}
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return -1;
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}
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}
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// View Holder used when displaying views
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static class AppViewHolder {
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TextView pkgName;
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TextView launchCount;
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TextView usageTime;
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}
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class UsageStatsAdapter extends BaseAdapter {
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// Constants defining order for display order
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private static final int _DISPLAY_ORDER_USAGE_TIME = 0;
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private static final int _DISPLAY_ORDER_LAUNCH_COUNT = 1;
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private static final int _DISPLAY_ORDER_APP_NAME = 2;
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private int mDisplayOrder = _DISPLAY_ORDER_USAGE_TIME;
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private List<PkgUsageStats> mUsageStats;
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private LaunchCountComparator mLaunchCountComparator;
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private UsageTimeComparator mUsageTimeComparator;
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private AppNameComparator mAppLabelComparator;
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private HashMap<String, CharSequence> mAppLabelMap;
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UsageStatsAdapter() {
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mUsageStats = new ArrayList<PkgUsageStats>();
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mAppLabelMap = new HashMap<String, CharSequence>();
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PkgUsageStats[] stats;
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try {
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stats = mUsageStatsService.getAllPkgUsageStats();
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} catch (RemoteException e) {
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Log.e(TAG, "Failed initializing usage stats service");
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return;
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}
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if (stats == null) {
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return;
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}
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for (PkgUsageStats ps : stats) {
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mUsageStats.add(ps);
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// load application labels for each application
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CharSequence label;
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try {
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ApplicationInfo appInfo = mPm.getApplicationInfo(ps.packageName, 0);
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label = appInfo.loadLabel(mPm);
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} catch (NameNotFoundException e) {
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label = ps.packageName;
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}
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mAppLabelMap.put(ps.packageName, label);
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}
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// Sort list
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mLaunchCountComparator = new LaunchCountComparator();
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mUsageTimeComparator = new UsageTimeComparator();
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mAppLabelComparator = new AppNameComparator(mAppLabelMap);
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sortList();
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}
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public int getCount() {
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return mUsageStats.size();
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}
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public Object getItem(int position) {
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return mUsageStats.get(position);
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}
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public long getItemId(int position) {
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return position;
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}
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public View getView(int position, View convertView, ViewGroup parent) {
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// A ViewHolder keeps references to children views to avoid unneccessary calls
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// to findViewById() on each row.
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AppViewHolder holder;
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// When convertView is not null, we can reuse it directly, there is no need
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// to reinflate it. We only inflate a new View when the convertView supplied
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// by ListView is null.
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if (convertView == null) {
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convertView = mInflater.inflate(R.layout.usage_stats_item, null);
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// Creates a ViewHolder and store references to the two children views
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// we want to bind data to.
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holder = new AppViewHolder();
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holder.pkgName = (TextView) convertView.findViewById(R.id.package_name);
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holder.launchCount = (TextView) convertView.findViewById(R.id.launch_count);
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holder.usageTime = (TextView) convertView.findViewById(R.id.usage_time);
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convertView.setTag(holder);
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} else {
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// Get the ViewHolder back to get fast access to the TextView
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// and the ImageView.
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holder = (AppViewHolder) convertView.getTag();
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}
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// Bind the data efficiently with the holder
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PkgUsageStats pkgStats = mUsageStats.get(position);
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if (pkgStats != null) {
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CharSequence label = mAppLabelMap.get(pkgStats.packageName);
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holder.pkgName.setText(label);
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holder.launchCount.setText(String.valueOf(pkgStats.launchCount));
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holder.usageTime.setText(String.valueOf(pkgStats.usageTime)+" ms");
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} else {
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Log.w(TAG, "No usage stats info for package:"+pkgStats.packageName);
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}
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return convertView;
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}
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void sortList(int sortOrder) {
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if (mDisplayOrder == sortOrder) {
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// do nothing
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return;
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}
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mDisplayOrder= sortOrder;
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sortList();
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}
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private void sortList() {
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if (mDisplayOrder == _DISPLAY_ORDER_USAGE_TIME) {
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if (localLOGV) Log.i(TAG, "Sorting by usage time");
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Collections.sort(mUsageStats, mUsageTimeComparator);
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} else if (mDisplayOrder == _DISPLAY_ORDER_LAUNCH_COUNT) {
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if (localLOGV) Log.i(TAG, "Sorting launch count");
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Collections.sort(mUsageStats, mLaunchCountComparator);
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} else if (mDisplayOrder == _DISPLAY_ORDER_APP_NAME) {
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if (localLOGV) Log.i(TAG, "Sorting by application name");
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Collections.sort(mUsageStats, mAppLabelComparator);
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}
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notifyDataSetChanged();
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}
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}
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/** Called when the activity is first created. */
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protected void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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mUsageStatsService = IUsageStats.Stub.asInterface(ServiceManager.getService("usagestats"));
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if (mUsageStatsService == null) {
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Log.e(TAG, "Failed to retrieve usagestats service");
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return;
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}
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mInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
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mPm = getPackageManager();
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setContentView(R.layout.usage_stats);
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mTypeSpinner = (Spinner) findViewById(R.id.typeSpinner);
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mTypeSpinner.setOnItemSelectedListener(this);
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mListView = (ListView) findViewById(R.id.pkg_list);
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// Initialize the inflater
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mAdapter = new UsageStatsAdapter();
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mListView.setAdapter(mAdapter);
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}
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public void onItemSelected(AdapterView<?> parent, View view, int position,
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long id) {
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mAdapter.sortList(position);
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}
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public void onNothingSelected(AdapterView<?> parent) {
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// do nothing
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}
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}
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