1/* 2 * Copyright (C) 2014 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 17package com.android.tests.usagestats; 18 19import android.app.ListActivity; 20import android.app.usage.UsageStats; 21import android.app.usage.UsageStatsManager; 22import android.content.Context; 23import android.content.Intent; 24import android.os.Bundle; 25import android.text.format.DateUtils; 26import android.view.LayoutInflater; 27import android.view.Menu; 28import android.view.MenuInflater; 29import android.view.MenuItem; 30import android.view.View; 31import android.view.ViewGroup; 32import android.widget.BaseAdapter; 33import android.widget.TextView; 34 35import java.util.ArrayList; 36import java.util.Collections; 37import java.util.Comparator; 38import java.util.Map; 39 40public class UsageStatsActivity extends ListActivity { 41 private static final long USAGE_STATS_PERIOD = 1000 * 60 * 60 * 24 * 14; 42 private UsageStatsManager mUsageStatsManager; 43 private Adapter mAdapter; 44 private Comparator<UsageStats> mComparator = new Comparator<UsageStats>() { 45 @Override 46 public int compare(UsageStats o1, UsageStats o2) { 47 return Long.compare(o2.getTotalTimeInForeground(), o1.getTotalTimeInForeground()); 48 } 49 }; 50 51 @Override 52 protected void onCreate(Bundle savedInstanceState) { 53 super.onCreate(savedInstanceState); 54 mUsageStatsManager = (UsageStatsManager) getSystemService(Context.USAGE_STATS_SERVICE); 55 mAdapter = new Adapter(); 56 setListAdapter(mAdapter); 57 } 58 59 @Override 60 public boolean onCreateOptionsMenu(Menu menu) { 61 MenuInflater inflater = getMenuInflater(); 62 inflater.inflate(R.menu.main, menu); 63 return super.onCreateOptionsMenu(menu); 64 } 65 66 @Override 67 public boolean onOptionsItemSelected(MenuItem item) { 68 switch (item.getItemId()) { 69 case R.id.log: 70 startActivity(new Intent(this, UsageLogActivity.class)); 71 return true; 72 73 default: 74 return super.onOptionsItemSelected(item); 75 } 76 } 77 78 @Override 79 protected void onResume() { 80 super.onResume(); 81 updateAdapter(); 82 } 83 84 private void updateAdapter() { 85 long now = System.currentTimeMillis(); 86 long beginTime = now - USAGE_STATS_PERIOD; 87 Map<String, UsageStats> stats = mUsageStatsManager.queryAndAggregateUsageStats( 88 beginTime, now); 89 mAdapter.update(stats); 90 } 91 92 private class Adapter extends BaseAdapter { 93 private ArrayList<UsageStats> mStats = new ArrayList<>(); 94 95 public void update(Map<String, UsageStats> stats) { 96 mStats.clear(); 97 if (stats == null) { 98 return; 99 } 100 101 mStats.addAll(stats.values()); 102 Collections.sort(mStats, mComparator); 103 notifyDataSetChanged(); 104 } 105 106 @Override 107 public int getCount() { 108 return mStats.size(); 109 } 110 111 @Override 112 public Object getItem(int position) { 113 return mStats.get(position); 114 } 115 116 @Override 117 public long getItemId(int position) { 118 return position; 119 } 120 121 @Override 122 public View getView(int position, View convertView, ViewGroup parent) { 123 final ViewHolder holder; 124 if (convertView == null) { 125 convertView = LayoutInflater.from(UsageStatsActivity.this) 126 .inflate(R.layout.row_item, parent, false); 127 holder = new ViewHolder(); 128 holder.packageName = (TextView) convertView.findViewById(android.R.id.text1); 129 holder.usageTime = (TextView) convertView.findViewById(android.R.id.text2); 130 convertView.setTag(holder); 131 } else { 132 holder = (ViewHolder) convertView.getTag(); 133 } 134 135 holder.packageName.setText(mStats.get(position).getPackageName()); 136 holder.usageTime.setText(DateUtils.formatDuration( 137 mStats.get(position).getTotalTimeInForeground())); 138 return convertView; 139 } 140 } 141 142 private static class ViewHolder { 143 TextView packageName; 144 TextView usageTime; 145 } 146}