auto import from //branches/cupcake/...@130745
diff --git a/src/com/android/settings/UsageStats.java b/src/com/android/settings/UsageStats.java
new file mode 100755
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--- /dev/null
+++ b/src/com/android/settings/UsageStats.java
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+
+
+/**
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy
+ * of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+package com.android.settings;
+
+import com.android.internal.app.IUsageStats;
+import com.android.settings.R;
+import android.app.Activity;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import com.android.internal.os.PkgUsageStats;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.BaseAdapter;
+import android.widget.ListView;
+import android.widget.Spinner;
+import android.widget.TextView;
+import android.widget.AdapterView.OnItemSelectedListener;
+
+/**
+ * Activity to display package usage statistics.
+ */
+public class UsageStats extends Activity implements OnItemSelectedListener {
+ private static final String TAG="UsageStatsActivity";
+ private static final boolean localLOGV = true;
+ private Spinner mTypeSpinner;
+ private ListView mListView;
+ private IUsageStats mUsageStatsService;
+ private LayoutInflater mInflater;
+ private UsageStatsAdapter mAdapter;
+ private PackageManager mPm;
+
+ public static class AppNameComparator implements Comparator<PkgUsageStats> {
+ Map<String, CharSequence> mAppLabelList;
+ AppNameComparator(Map<String, CharSequence> appList) {
+ mAppLabelList = appList;
+ }
+ public final int compare(PkgUsageStats a, PkgUsageStats b) {
+ String alabel = mAppLabelList.get(a.packageName).toString();
+ String blabel = mAppLabelList.get(b.packageName).toString();
+ return alabel.compareTo(blabel);
+ }
+ }
+
+ public static class LaunchCountComparator implements Comparator<PkgUsageStats> {
+ public final int compare(PkgUsageStats a, PkgUsageStats b) {
+ // return by descending order
+ return b.launchCount - a.launchCount;
+ }
+ }
+
+ public static class UsageTimeComparator implements Comparator<PkgUsageStats> {
+ public final int compare(PkgUsageStats a, PkgUsageStats b) {
+ long ret = a.usageTime-b.usageTime;
+ if (ret == 0) {
+ return 0;
+ }
+ if (ret < 0) {
+ return 1;
+ }
+ return -1;
+ }
+ }
+
+ // View Holder used when displaying views
+ static class AppViewHolder {
+ TextView pkgName;
+ TextView launchCount;
+ TextView usageTime;
+ }
+
+ class UsageStatsAdapter extends BaseAdapter {
+ // Constants defining order for display order
+ private static final int _DISPLAY_ORDER_USAGE_TIME = 0;
+ private static final int _DISPLAY_ORDER_LAUNCH_COUNT = 1;
+ private static final int _DISPLAY_ORDER_APP_NAME = 2;
+
+ private int mDisplayOrder = _DISPLAY_ORDER_USAGE_TIME;
+ private List<PkgUsageStats> mUsageStats;
+ private LaunchCountComparator mLaunchCountComparator;
+ private UsageTimeComparator mUsageTimeComparator;
+ private AppNameComparator mAppLabelComparator;
+ private HashMap<String, CharSequence> mAppLabelMap;
+
+ UsageStatsAdapter() {
+ mUsageStats = new ArrayList<PkgUsageStats>();
+ mAppLabelMap = new HashMap<String, CharSequence>();
+ PkgUsageStats[] stats;
+ try {
+ stats = mUsageStatsService.getAllPkgUsageStats();
+ } catch (RemoteException e) {
+ Log.e(TAG, "Failed initializing usage stats service");
+ return;
+ }
+ if (stats == null) {
+ return;
+ }
+ for (PkgUsageStats ps : stats) {
+ mUsageStats.add(ps);
+ // load application labels for each application
+ CharSequence label;
+ try {
+ ApplicationInfo appInfo = mPm.getApplicationInfo(ps.packageName, 0);
+ label = appInfo.loadLabel(mPm);
+ } catch (NameNotFoundException e) {
+ label = ps.packageName;
+ }
+ mAppLabelMap.put(ps.packageName, label);
+ }
+ // Sort list
+ mLaunchCountComparator = new LaunchCountComparator();
+ mUsageTimeComparator = new UsageTimeComparator();
+ mAppLabelComparator = new AppNameComparator(mAppLabelMap);
+ sortList();
+ }
+ public int getCount() {
+ return mUsageStats.size();
+ }
+
+ public Object getItem(int position) {
+ return mUsageStats.get(position);
+ }
+
+ public long getItemId(int position) {
+ return position;
+ }
+
+ public View getView(int position, View convertView, ViewGroup parent) {
+ // A ViewHolder keeps references to children views to avoid unneccessary calls
+ // to findViewById() on each row.
+ AppViewHolder holder;
+
+ // When convertView is not null, we can reuse it directly, there is no need
+ // to reinflate it. We only inflate a new View when the convertView supplied
+ // by ListView is null.
+ if (convertView == null) {
+ convertView = mInflater.inflate(R.layout.usage_stats_item, null);
+
+ // Creates a ViewHolder and store references to the two children views
+ // we want to bind data to.
+ holder = new AppViewHolder();
+ holder.pkgName = (TextView) convertView.findViewById(R.id.package_name);
+ holder.launchCount = (TextView) convertView.findViewById(R.id.launch_count);
+ holder.usageTime = (TextView) convertView.findViewById(R.id.usage_time);
+ convertView.setTag(holder);
+ } else {
+ // Get the ViewHolder back to get fast access to the TextView
+ // and the ImageView.
+ holder = (AppViewHolder) convertView.getTag();
+ }
+
+ // Bind the data efficiently with the holder
+ PkgUsageStats pkgStats = mUsageStats.get(position);
+ if (pkgStats != null) {
+ CharSequence label = mAppLabelMap.get(pkgStats.packageName);
+ holder.pkgName.setText(label);
+ holder.launchCount.setText(String.valueOf(pkgStats.launchCount));
+ holder.usageTime.setText(String.valueOf(pkgStats.usageTime)+" ms");
+ } else {
+ Log.w(TAG, "No usage stats info for package:"+pkgStats.packageName);
+ }
+ return convertView;
+ }
+
+ void sortList(int sortOrder) {
+ if (mDisplayOrder == sortOrder) {
+ // do nothing
+ return;
+ }
+ mDisplayOrder= sortOrder;
+ sortList();
+ }
+ private void sortList() {
+ if (mDisplayOrder == _DISPLAY_ORDER_USAGE_TIME) {
+ if (localLOGV) Log.i(TAG, "Sorting by usage time");
+ Collections.sort(mUsageStats, mUsageTimeComparator);
+ } else if (mDisplayOrder == _DISPLAY_ORDER_LAUNCH_COUNT) {
+ if (localLOGV) Log.i(TAG, "Sorting launch count");
+ Collections.sort(mUsageStats, mLaunchCountComparator);
+ } else if (mDisplayOrder == _DISPLAY_ORDER_APP_NAME) {
+ if (localLOGV) Log.i(TAG, "Sorting by application name");
+ Collections.sort(mUsageStats, mAppLabelComparator);
+ }
+ notifyDataSetChanged();
+ }
+ }
+
+ /** Called when the activity is first created. */
+ protected void onCreate(Bundle icicle) {
+ super.onCreate(icicle);
+ mUsageStatsService = IUsageStats.Stub.asInterface(ServiceManager.getService("usagestats"));
+ if (mUsageStatsService == null) {
+ Log.e(TAG, "Failed to retrieve usagestats service");
+ return;
+ }
+ mInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+ mPm = getPackageManager();
+
+ setContentView(R.layout.usage_stats);
+ mTypeSpinner = (Spinner) findViewById(R.id.typeSpinner);
+ mTypeSpinner.setOnItemSelectedListener(this);
+
+ mListView = (ListView) findViewById(R.id.pkg_list);
+ // Initialize the inflater
+
+ mAdapter = new UsageStatsAdapter();
+ mListView.setAdapter(mAdapter);
+ }
+
+ public void onItemSelected(AdapterView<?> parent, View view, int position,
+ long id) {
+ mAdapter.sortList(position);
+ }
+
+ public void onNothingSelected(AdapterView<?> parent) {
+ // do nothing
+ }
+}
+